From: "Murali Bashyam" <mbcoder@gmail.com>
Subject: Re: intercepting NFS RPC requests
Date: Tue, 7 Nov 2006 12:36:35 -0800
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To: "J. Bruce Fields" <bfields@fieldses.org>
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On 11/7/06, J. Bruce Fields <bfields@fieldses.org> wrote:
>
> On Tue, Nov 07, 2006 at 10:50:54AM -0800, Murali Bashyam wrote:
> > Is there a feature on the linux v3 or v4 NFS server to allow a process
> to
> > intercept the NFS RPC requests for file operations (open, close, read,
> write
> > etc) and handle them in user space?
>
> No.
>
> > If so, can these be handled asynchronously?
> >
> > Alternatively, if this is not possible, is this achievable through VFS
> > i.ehave a process create and register a file system through VFS and
> > export it
> > through NFS? Now when the server handles a client's file operation, it
> goes
> > through VFS and ends up with that vector registered by that process?
>
> No. You could modify fuse to support nfsd, or you could write a
> userspace NFS server (or modify an existing server).


Isn't it simpler (and potentially inefficient)  to export the NFS mount
point as a FUSE filesystem?

Murali

--b.
>

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<br><br><div><span class="gmail_quote">On 11/7/06, <b class="gmail_sendername">J. Bruce Fields</b> &lt;<a href="mailto:bfields@fieldses.org">bfields@fieldses.org</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Tue, Nov 07, 2006 at 10:50:54AM -0800, Murali Bashyam wrote:<br>&gt; Is there a feature on the linux v3 or v4 NFS server to allow a process to<br>&gt; intercept the NFS RPC requests for file operations (open, close, read, write
<br>&gt; etc) and handle them in user space?<br><br>No.<br><br>&gt; If so, can these be handled asynchronously?<br>&gt;<br>&gt; Alternatively, if this is not possible, is this achievable through VFS<br>&gt; i.ehave a process create and register a file system through VFS and
<br>&gt; export it<br>&gt; through NFS? Now when the server handles a client's file operation, it goes<br>&gt; through VFS and ends up with that vector registered by that process?<br><br>No. You could modify fuse to support nfsd, or you could write a
<br>userspace NFS server (or modify an existing server).</blockquote><div><br>Isn't it simpler (and potentially inefficient)&nbsp; to export the NFS mount point as a FUSE filesystem?<br><br>Murali<br></div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
--b.<br></blockquote></div><br>

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