linux-kernel - Re: [RFC PATCH 01/20] fat: Fix iocharset=utf8 mount option

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: <87h7frtlu0.fsf@mail.parknet.co.jp>
Date:   Sun, 15 Aug 2021 12:42:47 +0900
From:   OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>
To:     Pali Rohár <pali@...nel.org>
Cc:     linux-fsdevel@...r.kernel.org,
        linux-ntfs-dev@...ts.sourceforge.net, linux-cifs@...r.kernel.org,
        jfs-discussion@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Jan Kara <jack@...e.cz>, "Theodore Y . Ts'o" <tytso@....edu>,
        Luis de Bethencourt <luisbg@...nel.org>,
        Salah Triki <salah.triki@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Dave Kleikamp <shaggy@...nel.org>,
        Anton Altaparmakov <anton@...era.com>,
        Pavel Machek <pavel@....cz>,
        Marek Behún <marek.behun@....cz>,
        Christoph Hellwig <hch@...radead.org>
Subject: Re: [RFC PATCH 01/20] fat: Fix iocharset=utf8 mount option

Pali Rohár <pali@...nel.org> writes:

> Currently iocharset=utf8 mount option is broken and error is printed to
> dmesg when it is used. To use UTF-8 as iocharset, it is required to use
> utf8=1 mount option.
>
> Fix iocharset=utf8 mount option to use be equivalent to the utf8=1 mount
> option and remove printing error from dmesg.

This change is not equivalent to utf8=1. In the case of utf8=1, vfat
uses iocharset's conversion table and it can handle more than ascii.

So this patch is incompatible changes, and handles less chars than
utf8=1. So I think this is clean though, but this would be regression
for user of utf8=1.

Thanks.
-- 
OGAWA Hirofumi <hirofumi@...l.parknet.co.jp>