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927346d93e
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14534 Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Jeremy Allison <jra@samba.org>
42 lines
1.8 KiB
XML
42 lines
1.8 KiB
XML
<samba:parameter name="smb2 disable lock sequence checking"
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context="G"
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type="boolean"
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xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
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<description>
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<para>This boolean parameter controls whether
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<citerefentry><refentrytitle>smbd</refentrytitle>
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<manvolnum>8</manvolnum></citerefentry> will disable
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lock sequence checking even for multi-channel connections
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as well as durable handles.
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</para>
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<para>The [MS-SMB2] specification (under 3.3.5.14 Receiving an SMB2 LOCK Request)
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documents that a server should do lock sequence if Open.IsResilient or Open.IsDurable
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or Open.IsPersistent is TRUE or if Connection.Dialect belongs to the SMB 3.x dialect
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family and Connection.ServerCapabilities includes SMB2_GLOBAL_CAP_MULTI_CHANNEL.
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</para>
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<para>But Windows Server (at least up to v2004) only does these checks
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for the Open.IsResilient and Open.IsPersistent.
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That means they do not implement the behavior specified
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in [MS-SMB2].</para>
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<para>By default Samba behaves according to the specification
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and implements lock sequence checking when multi-channel is used.</para>
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<para>Warning: Only enable this option if existing clients can't
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handle lock sequence checking for handles without Open.IsResilient and Open.IsPersistent.
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And it turns out that the Windows Server behavior is required.</para>
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<para>Note: it's likely that this option will be removed again
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if future Windows versions change their behavior.</para>
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<para>Note: Samba does not implement Open.IsResilient and Open.IsPersistent yet.</para>
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</description>
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<related>server multi channel support</related>
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<value type="default">no</value>
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<value type="example">yes</value>
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</samba:parameter>
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