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<p><b><span style="font-size:9.0pt;font-family:"Trebuchet MS",sans-serif;color:#AAAAAA">Dell - Internal Use - Confidential
</span></b><o:p></o:p></p>
<p class="MsoPlainText">Using NetApp Release 8.3RC1 <o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Running the jcifs 1.3.18 example code SmbShell to browse a NetApp cifs share, I receive 'Access denied'.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">The cifs share has packet signing enabled.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">I have debugged this to line ~150 of NtlmContext.java in jcifs source, which is:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">ntlmsspFlags &= msg2.getFlags();<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">If I comment out this line, then browsing works. That is because:<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">ntlmsspFlags=0x60088014<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">and,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">ms2.getFlags() returns: 0x60088004<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">So the bitwise & turns off the 0x00000010 flag which is (NtlmFlags.java)<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">public static final int NTLMSSP_NEGOTIATE_SIGN = 0x00000010;<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">So, for some reason the NetApp seems to be disabling packet signing during the negotiation.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">This may be a bug in NetApp. On the other hand, perhaps it is a
<o:p></o:p></p>
<p class="MsoPlainText">configuration problem or a misunderstanding of the protocol that someone already knows about.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Any information appreciated,<o:p></o:p></p>
<p class="MsoPlainText">Russell<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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