f4286d4722
o Remove "BUGS" entries indicating that there's nowhere to store ACLs as we now have extended attributes. Obtained from: TrustedBSD Project
145 lines
4.9 KiB
Groff
145 lines
4.9 KiB
Groff
.\"-
|
|
.\" Copyright (c) 2000 Robert N. M. Watson
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" 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 AUTHOR 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 AUTHOR 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 28, 2000
|
|
.Dt ACL_VALID 3
|
|
.Os FreeBSD 4.0
|
|
.Sh NAME
|
|
.Nm acl_valid ,
|
|
.Nm acl_valid_fd_np ,
|
|
.Nm acl_valid_file_np
|
|
.Nd validate an ACL
|
|
.Sh LIBRARY
|
|
.Lb libposix1e
|
|
.Sh SYNOPSIS
|
|
.Fd #include <sys/types.h>
|
|
.Fd #include <sys/acl.h>
|
|
.Ft int
|
|
.Fn acl_valid "acl_t acl"
|
|
.Ft int
|
|
.Fn acl_valid_fd_np "int fd" "acl_type_t type" "acl_t acl"
|
|
.Ft int
|
|
.Fn acl_valid_file_np "const char *path_p" "acl_type_t type" "acl_t acl"
|
|
.Sh DESCRIPTION
|
|
These functions check that the ACL referred to by the argument
|
|
.Va acl
|
|
is valid. The POSIX.1e routine,
|
|
.Fn acl_valid ,
|
|
checks this validity only with POSIX.1e ACL semantics, and irrespective
|
|
of the context in which the ACL is to be used. The non-portable forms,
|
|
.Fn acl_valid_fd_np
|
|
and
|
|
.Fn acl_valid_file_np ,
|
|
allow an ACL to be checked in the context of a specific acl type,
|
|
.Va type ,
|
|
and file system object. In environments where additional ACL types are
|
|
supported than just POSIX.1e, this makes more sense.
|
|
|
|
For POSIX.1e semantics, the checks include:
|
|
.Bd -literal -offset indent
|
|
The three required entries (ACL_USER_OBJ, ACL_GROUP_OBJ,
|
|
and ACL_OTHER) shall exist exactly once in the ACL. If
|
|
the ACL contains any ACL_USER, ACL_GROUP, or any other
|
|
implementation-defined entries in the file group class
|
|
then one ACL_MASK entry shall also be required. The ACL
|
|
shall contain at most on ACL_MASK entry.
|
|
|
|
The qualifier field shall be unique among all entries of
|
|
the same POSIX.1e ACL facility defined tag type. The
|
|
tag type field shall contain valid values including any
|
|
implementation-defined values. Validation of the values
|
|
of the qualifier field is implementation-defined.
|
|
.Ed
|
|
|
|
The POSIX.1e
|
|
.Fn acl_valid
|
|
function may reorder the ACL for the purposes of verification; the
|
|
non-portable validation functions will not.
|
|
.Sh IMPLEMENTATION NOTES
|
|
FreeBSD's support for POSIX.1e interfaces and features is still under
|
|
development at this time.
|
|
.Sh RETURN VALUES
|
|
Upon successful completion, the function shall return a value of zero.
|
|
Otherwise, a value of -1 shall be returned and
|
|
.Va errno
|
|
shall be set to indicate the error.
|
|
.Sh ERRORS
|
|
If any of the following conditions occur, these functions shall return
|
|
-1 and set
|
|
.Va errno
|
|
to the corresponding value:
|
|
.Bl -tag -width Er
|
|
.It Bq Er EACCES
|
|
Search permission is denied for a component of the path prefix, or the
|
|
object exists and the process does not have appropriate access rights.
|
|
.It Bq Er EBADF
|
|
The
|
|
.Va fd
|
|
argument is not a valid file descriptor.
|
|
.It Bq Er EINVAL
|
|
Argument
|
|
.Va acl
|
|
does not point to a valid ACL.
|
|
|
|
One or more of the required ACL entries is not present in
|
|
.Va acl .
|
|
|
|
The ACL contains entries that are not unique.
|
|
|
|
The file system rejects the ACL based on fs-specific semantics issues.
|
|
.It Bq Er ENAMETOOLONG
|
|
A component of a pathname exceeded 255 characters, or an
|
|
entire path name exceeded 1023 characters.
|
|
.It Bq Er ENOENT
|
|
The named object does not exist, or the
|
|
.Va path_p
|
|
argument points to an empty string.
|
|
.It Bq Er ENOMEM
|
|
Insufficient memory available to fulfill request.
|
|
.It Bq Er EOPNOTSUPP
|
|
The file system does not support ACL retrieval.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr acl 3 ,
|
|
.Xr acl_get 3 ,
|
|
.Xr acl_init 3 ,
|
|
.Xr acl_set 3 ,
|
|
.Xr posix1e 3
|
|
.Sh STANDARDS
|
|
POSIX.1e is described in IEEE POSIX.1e draft 17. Discussion
|
|
of the draft continues on the cross-platform POSIX.1e implementation
|
|
mailing list. To join this list, see the FreeBSD POSIX.1e implementation
|
|
page for more information.
|
|
.Sh HISTORY
|
|
POSIX.1e support was introduced in
|
|
.Fx 4.0 ,
|
|
and development continues.
|
|
.Sh AUTHORS
|
|
.An Robert N M Watson
|
|
.Sh BUGS
|
|
These features are not yet fully implemented.
|