<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<body link="#355491" alink="#4262a1" vlink="#355491" style="background: #e2e2e2; margin: 0; padding: 20px;">
<div>
<table cellpadding="0" bgcolor="#FFFFFF" border="0" cellspacing="0" style="border: 1px solid #dadada; margin-bottom: 30px; width: 100%; -moz-border-radius: 6px; -webkit-border-radius: 6px;">
<tbody>
<tr>
<td>
<table border="0" cellpadding="0" cellspacing="0" bgcolor="#FFFFFF" style="border: solid 2px #ccc; background: #dadada; width: 100%; -moz-border-radius: 6px; -webkit-border-radius: 6px;">
<tbody>
<tr>
<td bgcolor="#000000" valign="middle" height="58px" style="border-bottom: 1px solid #ccc; padding: 20px; -moz-border-radius-topleft: 3px; -moz-border-radius-topright: 3px; -webkit-border-top-right-radius: 5px; -webkit-border-top-left-radius: 5px;">
<h1 style="color: #333333; font: bold 22px Arial, Helvetica, sans-serif; margin: 0; display: block !important;">
<!-- To have a header image/logo replace the name below with your img tag -->
<!-- Email clients will render the images when the message is read so any image -->
<!-- must be made available on a public server, so that all recipients can load the image. -->
<a href="https://community.jboss.org/index.jspa" style="text-decoration: none; color: #E1E1E1">JBoss Community</a></h1>
</td>
</tr>
<tr>
<td bgcolor="#FFFFFF" style="font: normal 12px Arial, Helvetica, sans-serif; color:#333333; padding: 20px; -moz-border-radius-bottomleft: 4px; -moz-border-radius-bottomright: 4px; -webkit-border-bottom-right-radius: 5px; -webkit-border-bottom-left-radius: 5px;"><h3 style="margin: 10px 0 5px; font-size: 17px; font-weight: normal;">
Access control notes
</h3>
<span style="margin-bottom: 10px;">
new comment by <a href="https://community.jboss.org/people/brian.stansberry">Brian Stansberry</a> <a href="https://community.jboss.org/docs/DOC-48596#comment-11938">View all comments on this document</a>
</span>
<hr style="margin: 20px 0; border: none; background-color: #dadada; height: 1px;">
<div class="jive-rendered-content"><p>Thoughts on model-references. I'm going to outline different types of references, with suggestions for what rules could be enforced. What I'm getting at here is if we allow a more narrowly scoped variant of our standard roles (e.g. a person is an "Operator" but only for server-group "foo" or only for server host=x/server=y), how would those scoped permissions relate to other resources? Specifically for a given reference:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Referrer to referent:</p><p>a) does referrer need perms to validate existence of the referent?</p><p>b) do rights to the referrer grant rights to the referent? For example, ability to write to referrer grants right to write referent</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Referent to referrer:</p><p>a) does user require perms to referrer to change referent?</p><p>b) do rights to the referent grant rights to the referrer? For example, ability to write to referent grants right to write referrer</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>The types of references I considered and the answers I have have for the above questions:</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Misc references:</p><p>Example: ejb to ispn cache</p><p>Referrer to referent:</p><p>a) no</p><p>b) no</p><p>Referent to referrer:</p><p>a) no</p><p>b) no</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>References to secure resources:</p><p>Example: remoting connector to security domain cache</p><p>Referrer to referent:</p><p>a) yes</p><p>b) no</p><p>Referent to referrer:</p><p>a) no</p><p>b) no</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Server group to profile:</p><p>Referrer to referent:</p><p>a) no</p><p>b) configurable (config for a server-group-scoped role could have a flag)</p><p>Referent to referrer:</p><p>a) yes</p><p>b) no</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Server group to socket-binding-group:</p><p>Referrer to referent:</p><p>a) no</p><p>b) configurable</p><p>Referent to referrer:</p><p>a) yes</p><p>b) no</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Server group to deployment:</p><p>Referrer to referent:</p><p>a) no</p><p>b) configurable</p><p>Referent to referrer:</p><p>a) yes</p><p>b) no</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Server group to deployment-override:</p><p>Referrer to referent:</p><p>a) no</p><p>b) configurable</p><p>Referent to referrer:</p><p>a) yes</p><p>b) no</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> <span style="font-size: 10pt;"> </span> </p><p>Server to server-group:</p><p>Referrer to referent:</p><p>a) no</p><p>b) no (give user rights to server-group if this is desired)</p><p>Referent to referrer:</p><p>a) no</p><p>b) no</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>Server to socket-binding-group:</p><p>Referrer to referent:</p><p>a) no</p><p>b) no</p><p>Referent to referrer:</p><p>a) no</p><p>b) no</p><p style="min-height: 8pt; height: 8pt; padding: 0px;"> </p><p>I went through a bunch of different cases with the server-group and server ones, but for each type, the answers are the same.</p></div>
</td>
</tr>
</tbody>
</table>
</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>