99 lines
3.2 KiB
Groff
99 lines
3.2 KiB
Groff
.\"-
|
|
.\" Copyright (c) 1999 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 December 23, 1999
|
|
.Os
|
|
.Dt VOP_ACLCHECK 9
|
|
.Sh NAME
|
|
.Nm VOP_ACLCHECK
|
|
.Nd check an access control list for a vnode
|
|
.Sh SYNOPSIS
|
|
.In sys/param.h
|
|
.In sys/vnode.h
|
|
.In sys/acl.h
|
|
.Ft int
|
|
.Fn VOP_ACLCHECK "struct vnode *vp" "acl_type_t type" "struct acl *aclp" "struct ucred *cred" "struct thread *td"
|
|
.Sh DESCRIPTION
|
|
This vnode call may be used to determine the validity of a particular access
|
|
control list (ACL) for a particular file or directory.
|
|
.Pp
|
|
Its arguments are:
|
|
.Bl -tag -width type
|
|
.It Ar vp
|
|
the vnode of the file or directory
|
|
.It Ar type
|
|
the type of ACL to check
|
|
.It Ar aclp
|
|
a pointer to an ACL structure from which to retrieve the ACL data
|
|
.It Ar cred
|
|
the user credentials to use in authorizing the request
|
|
.It Ar td
|
|
the thread checking the ACL
|
|
.El
|
|
.Pp
|
|
The
|
|
.Fa cred
|
|
pointer may be NULL to indicate that access control checks are not to be
|
|
performed, if possible. This cred setting might be used to allow the
|
|
kernel to authorize ACL verification that the active process might not be
|
|
permitted to do.
|
|
.Pp
|
|
The vnode ACL interface defines the syntax, and not semantics, of file and
|
|
directory ACL interfaces. More information about ACL management in kernel
|
|
may be found in
|
|
.Xr acl 9 .
|
|
.Sh LOCKS
|
|
No locks are required to call this vnode method, and any locks held on
|
|
entry will be held on exit.
|
|
.Sh RETURN VALUES
|
|
If the
|
|
.Fa aclp
|
|
pointer points to a valid ACL of type
|
|
.Fa type
|
|
for the object
|
|
.Fa vp ,
|
|
then zero is returned. Otherwise, an appropriate error code is returned.
|
|
.Sh ERRORS
|
|
.Bl -tag -width Er
|
|
.It Bq Er EINVAL
|
|
The ACL type passed is invalid for this vnode, or the ACL data is invalid
|
|
.It Bq Er EACCES
|
|
Permission denied
|
|
.It Bq Er ENOMEM
|
|
Insufficient memory available to fulfill request
|
|
.It Bq Er EOPNOTSUPP
|
|
The file system does not support VOP_ACLCHECK
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr acl 9 ,
|
|
.Xr vnode 9 ,
|
|
.Xr VOP_GETACL 9 ,
|
|
.Xr VOP_SETACL 9
|
|
.Sh AUTHORS
|
|
This man page was written by
|
|
.An Robert Watson .
|