linux-kernel - Re: [PATCH] Added CONFIG_VFAT_FS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090706195720.GB13638@shareable.org>
Date:	Mon, 6 Jul 2009 20:57:20 +0100
From:	Jamie Lokier <jamie@...reable.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Theodore Tso <tytso@....edu>,
	Rusty Russell <rusty@...tcorp.com.au>,
	Pavel Machek <pavel@....cz>, tridge@...ba.org,
	OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>,
	john.lanza@...ux.com, linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org,
	Dave Kleikamp <shaggy@...ux.vnet.ibm.com>,
	Steve French <sfrench@...ibm.com>,
	Mingming Cao <cmm@...ibm.com>,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>
Subject: Re: [PATCH] Added CONFIG_VFAT_FS_DUALNAMES option

Alan Cox wrote:
> From the funnies we've had in the past with FAT my gut impression is
> there are only a few implementations out there. Psion seems to have their
> own but most of the rest behave remarkably similarly which makes me
> suspect they all licensed a tiny number of implementations (DRDOS one
> perhaps ?). If we can keep most of those devices mounted 8.3 we nicely
> sidestep the issue anyway.

>From recently witnessing someone write another FAT implementation, for
an 8-bit AVR microcontroller reading SD cards, based in part on
someone elses public domain FAT implementation, fixing significant
bugs in that (including directory parsing), and then seeing it
translated from C to hand-coded AVR assembly language to save space,
with me helping teach C to the person doing it, for a commercial
product which is to be released in the next couple of months, and will
be updated with SD cards written by Linux and Windows...

>From witnessing that, for one obscure product among millions, I'd
guess there are more FAT implementations than a "few".  Perhaps there
aren't many VFAT implementations, but my gut says there are quite a
lot of independently written 8.3-only FAT ones.

-- Jamie
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/