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<table class="head">
<tr>
<td class="head-ltitle">VOP_GETACL(9)</td>
<td class="head-vol">Kernel Developer's Manual</td>
<td class="head-rtitle">VOP_GETACL(9)</td>
</tr>
</table>
<div class="manual-text">
<section class="Sh">
<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
<p class="Pp"><code class="Nm">VOP_GETACL</code> —
<span class="Nd">retrieve access control list for a vnode</span></p>
</section>
<section class="Sh">
<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
<p class="Pp"><code class="In">#include
<<a class="In">sys/param.h</a>></code>
<br/>
<code class="In">#include <<a class="In">sys/vnode.h</a>></code>
<br/>
<code class="In">#include <<a class="In">sys/acl.h</a>></code></p>
<p class="Pp"><var class="Ft">int</var>
<br/>
<code class="Fn">VOP_GETACL</code>(<var class="Fa" style="white-space: nowrap;">struct
vnode *vp</var>, <var class="Fa" style="white-space: nowrap;">acl_type_t
type</var>, <var class="Fa" style="white-space: nowrap;">struct acl
*aclp</var>, <var class="Fa" style="white-space: nowrap;">struct ucred
*cred</var>, <var class="Fa" style="white-space: nowrap;">struct thread
*td</var>);</p>
</section>
<section class="Sh">
<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
<p class="Pp">This vnode call may be used to retrieve the access control list
(ACL) from a file or directory.</p>
<p class="Pp">Its arguments are:</p>
<dl class="Bl-tag">
<dt><var class="Fa">vp</var></dt>
<dd>The vnode of the file or directory.</dd>
<dt><var class="Fa">type</var></dt>
<dd>The type of ACL to retrieve.</dd>
<dt><var class="Fa">aclp</var></dt>
<dd>A pointer to an ACL structure to receive the ACL data.</dd>
<dt><var class="Fa">cred</var></dt>
<dd>The user credentials to use in authorizing the request.</dd>
<dt><var class="Fa">td</var></dt>
<dd>The thread requesting the ACL.</dd>
</dl>
<p class="Pp">The <var class="Fa">cred</var> pointer may be
<code class="Dv">NULL</code> 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 retrieval that the active process might not be
permitted to do.</p>
<p class="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 <a class="Xr">acl(9)</a>.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="LOCKS"><a class="permalink" href="#LOCKS">LOCKS</a></h1>
<p class="Pp">The vnode will be locked on entry and should remain locked on
return.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="RETURN_VALUES"><a class="permalink" href="#RETURN_VALUES">RETURN
VALUES</a></h1>
<p class="Pp">If the <var class="Fa">aclp</var> pointer will point to a valid
ACL, then zero is returned. Otherwise, an appropriate error code is
returned.</p>
</section>
<section class="Sh">
<h1 class="Sh" id="ERRORS"><a class="permalink" href="#ERRORS">ERRORS</a></h1>
<dl class="Bl-tag">
<dt id="EINVAL">[<a class="permalink" href="#EINVAL"><code class="Er">EINVAL</code></a>]</dt>
<dd>The ACL type passed is invalid for this vnode.</dd>
<dt id="EACCES">[<a class="permalink" href="#EACCES"><code class="Er">EACCES</code></a>]</dt>
<dd>The caller does not have the appropriate privilege.</dd>
<dt id="ENOMEM">[<a class="permalink" href="#ENOMEM"><code class="Er">ENOMEM</code></a>]</dt>
<dd>Sufficient memory is not available to fulfill the request.</dd>
<dt id="EOPNOTSUPP">[<a class="permalink" href="#EOPNOTSUPP"><code class="Er">EOPNOTSUPP</code></a>]</dt>
<dd>The file system does not support
<code class="Fn">VOP_GETACL</code>().</dd>
</dl>
</section>
<section class="Sh">
<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
ALSO</a></h1>
<p class="Pp"><a class="Xr">acl(9)</a>, <a class="Xr">vnode(9)</a>,
<a class="Xr">VOP_ACLCHECK(9)</a>, <a class="Xr">VOP_SETACL(9)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
<p class="Pp">This manual page was written by <span class="An">Robert
Watson</span>.</p>
</section>
</div>
<table class="foot">
<tr>
<td class="foot-date">December 23, 1999</td>
<td class="foot-os">FreeBSD 15.0</td>
</tr>
</table>
|
