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<p class="MsoNormal">Hello Isaac, I’m researching this issue for you. I will provide you with an update as soon as I have some details to share with you.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Sreekanth Nadendla<o:p></o:p></p>
<p class="MsoNormal">Microsoft Windows Open Specifications<o:p></o:p></p>
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<p class="MsoNormal"><b>From:</b> Hung-Chun Yu <HungChun.Yu@microsoft.com> <br>
<b>Sent:</b> Tuesday, January 28, 2020 11:22 AM<br>
<b>To:</b> Isaac Boukris <iboukris@gmail.com><br>
<b>Cc:</b> support <support@mail.support.microsoft.com>; Greg Hudson <ghudson@mit.edu>; cifs-protocol@lists.samba.org<br>
<b>Subject:</b> [120012821001754][MS-SFU]Clarification request on cross-realm RBCD in MS-SFU 3.2.5.2.2<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">+support [cc]<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">-dochelp [bcc]<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hi Isaac<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Thank you for your question. We created SR
<span style="background:white">120012821001754</span> and please leave this info in the subject line to track your issue. An engineer will contact you soon.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Hung-Chun Yu<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black">Microsoft Protocols Support<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="color:black">From:</span></b><span style="color:black"> Isaac Boukris <<a href="mailto:iboukris@gmail.com">iboukris@gmail.com</a>><br>
<b>Sent:</b> Tuesday, January 28, 2020 5:30 AM<br>
<b>To:</b> Interoperability Documentation Help <<a href="mailto:dochelp@microsoft.com">dochelp@microsoft.com</a>>; Greg Hudson <<a href="mailto:ghudson@mit.edu">ghudson@mit.edu</a>>;
<a href="mailto:cifs-protocol@lists.samba.org">cifs-protocol@lists.samba.org</a> <<a href="mailto:cifs-protocol@lists.samba.org">cifs-protocol@lists.samba.org</a>><br>
<b>Subject:</b> [EXTERNAL] Re: Clarification request on cross-realm RBCD in MS-SFU 3.2.5.2.2</span>
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<p class="MsoNormal">Hi again,<br>
<br>
On Sun, Jan 26, 2020 at 1:57 PM Isaac Boukris <<a href="mailto:iboukris@gmail.com">iboukris@gmail.com</a>> wrote:<br>
><br>
> When a KDC replies with Service Ticket (MS-SFU 3.2.5.2.2), how does it<br>
> determine the reply cname and crealm.<br>
><br>
> <a href="https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fopenspecs%2Fwindows_protocols%2Fms-sfu%2Fce6bbf34-0f11-40d6-93d1-165a3afa0223&data=02%7C01%7Csrenaden%40microsoft.com%7C85935b52f45841af7f0608d7a4278fd0%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637158362130403984&sdata=nKrdFdaAXXCP8x4zrZth4PVd8YQ6nJ8%2BalPZXd2pw6U%3D&reserved=0">
https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdocs.microsoft.com%2Fen-us%2Fopenspecs%2Fwindows_protocols%2Fms-sfu%2Fce6bbf34-0f11-40d6-93d1-165a3afa0223&data=02%7C01%7CHungChun.Yu%40microsoft.com%7C3a83b03cfab04f57ca3a08d7a3f680de%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C637158151428246386&sdata=MjRHU0UvvE9zuzJqoQGt%2FeQECFo8xwNs9KU9DvuYNuQ%3D&reserved=0</a><br>
><br>
> Per the above doc, it sounds like it should be the cname and crealm<br>
> from the additional-ticket, however in RBCD, when the<br>
> additional-ticket is a cross-tgt the cname and cream are of service-1<br>
> and not of the impersonated client.<br>
><br>
> In contrast, I've observed that Windows KDC constructs the<br>
> impersonated client's principal name from the PAC, and set the reply<br>
> cname and crealm to that principal's. However, I can't find any clear<br>
> document that reflects it.<br>
<br>
I've sent this over the weekend, and perhaps got lost.<br>
<br>
In short, I think MS-SFU 3.2.5.2.2 section was not updated for<br>
cross-realm RBCD, as other parts of the document. Please review and<br>
assign :)<o:p></o:p></p>
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