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Date: Sat, 15 May 2004 15:53:06 +0100
From: viro@parcelfarce.linux.theplanet.co.uk
To: Pascal Schmidt <der.eremit@email.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: NFS & long symlinks = stack overflow
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References: <1W7yE-3lZ-13@gated-at.bofh.it> <1W7S5-3Am-13@gated-at.bofh.it> <E1BP0BI-0000lo-09@localhost>
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On Sat, May 15, 2004 at 04:30:28PM +0200, Pascal Schmidt wrote:
> On Sat, 15 May 2004 16:00:21 +0200, you wrote in linux.kernel:
> 
> > Lovely.  The real limit imposed by client (apparently not enforced, though)
> > is PAGE_CACHE_SIZE - 4 - 1.  What are the protocol limits?
> 
> None. An NFSv3 server can enforce an arbitrary limit on filename length,
> advertised via PATHCONF, though.

Lovely...  How are other clients dealing with that?  Put a reasonable
limit on the size and return an error if READLINK brings more than that?