12513 SMB 3.1.1 support for server

*** 9,19 ****
   * http://www.illumos.org/license/CDDL.
   */
  
  /*
   * Copyright 2019 Nexenta Systems, Inc.  All rights reserved.
!  * Copyright 2019 RackTop Systems.
   */
  
  
  #include <smbsrv/smb2_kproto.h>
  #include <smbsrv/smb_kstat.h>
--- 9,19 ----
   * http://www.illumos.org/license/CDDL.
   */
  
  /*
   * Copyright 2019 Nexenta Systems, Inc.  All rights reserved.
!  * Copyright 2020 RackTop Systems, Inc.
   */
  
  
  #include <smbsrv/smb2_kproto.h>
  #include <smbsrv/smb_kstat.h>
*** 971,980 ****
--- 971,990 ----
          /*
           * Overwrite the (now final) SMB2 header for this response.
           */
          (void) smb2_encode_header(sr, B_TRUE);
  
+         /*
+          * Cannot move this into smb2_session_setup() - encoded header required.
+          */
+         if (session->dialect >= SMB_VERS_3_11 &&
+             sr->smb2_cmd_code == SMB2_SESSION_SETUP &&
+             sr->smb2_status == NT_STATUS_MORE_PROCESSING_REQUIRED) {
+                 (void) smb31_preauth_sha512_calc(sr, &sr->reply,
+                     session->smb31_preauth_hashval);
+         }
+ 
          /* Don't sign if we're going to encrypt */
          if (sr->tform_ssn == NULL &&
              (sr->smb2_hdr_flags & SMB2_FLAGS_SIGNED) != 0)
                  smb2_sign_reply(sr);