From owner-freebsd-amd64@FreeBSD.ORG  Sun Jan  4 22:44:15 2004
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Date: Sun, 4 Jan 2004 22:44:15 -0800
From: David O'Brien <obrien@FreeBSD.ORG>
To: James Van Artsdalen <james-freebsd-amd64@jrv.org>
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cc: freebsd-amd64@freebsd.org
Subject: Re: SMBFS?
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On Sun, Jan 04, 2004 at 01:14:13AM -0600, James Van Artsdalen wrote:
> > I'm beginning to wonder if there might be a bug instead of just an
> > incorrect config file.
> 
> In nb_enum_if() in /usr/src/contrib/smbfs/lib/smb/nb_net.c, this code
> traverses all of the net interfaces looking for broadcast addresses.
> 
> Of interest ifc.ifc_len is 524, but sizeof (struct ifreq) is 32?
> Shouldn't the len be an integer multiple of the size of the struct?
> I can find no documentation of these ioctl's.  I looked at the bytes
> returned by SIOCGIFCONF an it's clearly not what the libsmbfs code
> expects, but I don't know what SIOCGIFCONF is really supposed to
> return & the structure boundaries in the buffer aren't obvious.
... 
> 	ifcnt = ifc.ifc_len / sizeof(struct ifreq);

Tim Robbins <tjr@freebsd.org>'s done some SMBFS work lately.  He'd like
it if AMD64 users experiencing this could try:

http://cvsweb.netbsd.org/bsdweb.cgi/src/dist/smbfs/lib/smb/nb_net.c.diff?r1=1.1&r2=1.2

and let him know whether he should bring it across to FreeBSD.

-- David