9746ec766a
Capitalize the first letter of the descriptions for the entries in the ERRORS section if they are complete sentences and end the sentences with periods.
100 lines
3.2 KiB
Groff
100 lines
3.2 KiB
Groff
.\"-
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.\" Copyright (c) 1999 Robert N. M. Watson
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd December 23, 1999
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.Os
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.Dt VOP_ACLCHECK 9
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.Sh NAME
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.Nm VOP_ACLCHECK
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.Nd check an access control list for a vnode
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.Sh SYNOPSIS
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.In sys/param.h
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.In sys/vnode.h
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.In sys/acl.h
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.Ft int
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.Fn VOP_ACLCHECK "struct vnode *vp" "acl_type_t type" "struct acl *aclp" "struct ucred *cred" "struct thread *td"
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.Sh DESCRIPTION
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This vnode call may be used to determine the validity of a particular access
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control list (ACL) for a particular file or directory.
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.Pp
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Its arguments are:
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.Bl -tag -width type
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.It Ar vp
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the vnode of the file or directory
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.It Ar type
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the type of ACL to check
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.It Ar aclp
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a pointer to an ACL structure from which to retrieve the ACL data
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.It Ar cred
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the user credentials to use in authorizing the request
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.It Ar td
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the thread checking the ACL
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.El
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.Pp
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The
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.Fa cred
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pointer may be NULL to indicate that access control checks are not to be
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performed, if possible. This cred setting might be used to allow the
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kernel to authorize ACL verification that the active process might not be
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permitted to do.
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.Pp
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The vnode ACL interface defines the syntax, and not semantics, of file and
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directory ACL interfaces. More information about ACL management in kernel
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may be found in
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.Xr acl 9 .
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.Sh LOCKS
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No locks are required to call this vnode method, and any locks held on
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entry will be held on exit.
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.Sh RETURN VALUES
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If the
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.Fa aclp
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pointer points to a valid ACL of type
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.Fa type
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for the object
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.Fa vp ,
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then zero is returned. Otherwise, an appropriate error code is returned.
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.Sh ERRORS
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.Bl -tag -width Er
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.It Bq Er EINVAL
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The ACL type passed is invalid for this vnode, or the ACL data is invalid.
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.It Bq Er EACCES
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Permission denied
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.It Bq Er ENOMEM
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Insufficient memory available to fulfill request
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.It Bq Er EOPNOTSUPP
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The filesystem does not support
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.Fn VOP_ACLCHECK .
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.El
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.Sh SEE ALSO
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.Xr acl 9 ,
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.Xr vnode 9 ,
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.Xr VOP_GETACL 9 ,
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.Xr VOP_SETACL 9
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.Sh AUTHORS
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This man page was written by
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.An Robert Watson .
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