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smbd: Send SMB2 oplock breaks unencrypted

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This is not what Windows server does, but it seems that Windows
clients expect.  Windows->Windows never runs into this issue, because
an encryption-enabled SMB3 connection will always use leases, and lease
breaks *are* unencrypted...

You can reproduce the issue Windows->Windows by disabling leases on the
Windows server. Disable leases using the registry key:

HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer\DisableLeasing

Dochelp confirmed that this is a valid workaround for Windows clients
dropping encrypted oplock breaks.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11570

Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Sat Oct 24 05:01:32 CEST 2015 on sn-devel-104

(cherry picked from commit 0a924d13cf4bb570cce3955cf0de9d8678b37dbe)
This commit is contained in:
Volker Lendecke 2015-10-06 16:10:43 +02:00 committed by Karolin Seeger
parent 2d39d049a9
commit 3abfde02f8
1 changed files with 1 additions and 1 deletions
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2
source3/smbd/smb2_server.c
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@ -2976,7 +2976,7 @@ NTSTATUS smbd_smb2_send_oplock_break(struct smbXsrv_connection *xconn,
SBVAL(body, 0x08, op->global->open_persistent_id);
SBVAL(body, 0x10, op->global->open_volatile_id);
return smbd_smb2_send_break(xconn, session, tcon, body, sizeof(body));
return smbd_smb2_send_break(xconn, NULL, NULL, body, sizeof(body));
}
NTSTATUS smbd_smb2_send_lease_break(struct smbXsrv_connection *xconn,