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Date: Fri, 19 Dec 2003 22:48:53 +1100
From: Tim Robbins <tjr@freebsd.org>
To: Terry Lambert <tlambert2@mindspring.com>
Message-ID: <20031219114853.GA234@wombat.robbins.dropbear.id.au>
References: <3FE29BA4.9060205@unisa.edu.au> <3FE2CD51.FCF0BD4D@mindspring.com>
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cc: Benjamin Close <Benjamin.Close@unisa.edu.au>
cc: freebsd-current@freebsd.org
Subject: Re: smbfs 4G max file size
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On Fri, Dec 19, 2003 at 02:05:05AM -0800, Terry Lambert wrote:

> Benjamin Close wrote:
> > Hi All,
> >     Whilst tinkering with some backups the other day I noticed that
> > smbfs capped out at 4G.
> > Does the protocol restrict it to this limit or is there something else?
> 
> It is a limitation imposed by the 32 bit file size in bytes field
> for the over the wire protocol.  It occurs becaus the FreeBSD SMBFS
> client code uses a slightly older, cruftier version of the SMB
> protocol (at least this is my understanding).
> 
> I've acutally suggested a couple of times in the past that someone
> take the Darwin SMBFS code from MacOS X (10.3, Panther), which is
> now up on the Apple developer site, and back-port it to FreeBSD. 

This is a pain to do without proper change logs or version control
and there are problems with their choice of licence. In addition,
porting Apple's code would re-introduce many bugs that have been
fixed in FreeBSD.


Tim