isofs patch

Marius Gedminas (mgedmin@takas.lt)
Mon, 14 Jun 1999 23:28:21 +0200

Two things annoyed me with Joliet CD-ROMs:
* All files were executable (mode=0444 fixed only files with dots in
their names) despite the setting of `noexec' flag.
* Often there would be 8.3 DOSish filenames in ALL UPPER CASE (at least
on home made CD-Rs).

So I wrote a patch for iso9660 fs which
* removes execute permission from regular files when `noexec' is specified
to mount
* adds a new mount option, `lowercase' which when activated translates
all-uppercase file names on Joliet CD-ROMs to lower case. Plain
ISO9660 already has `map=normal', and Rock Ridge doesn't need this
(being case sensitive et al), thus only Joliet CDs are affected.

If this interests anyone else, the patch can be found at
http://www-public.osf.lt/~mgedmin/isofs.htm
or (without useless introductions) directly at
http://www-public.osf.lt/~mgedmin/isofs-2.2.9mg1.patch

I'm not sure if this functionality should be added to the 2.2.x kernel
series. It would be nice to have at least the `noexec' part (fat, vfat
and msdos fs already do this).

I'd appreciate comments (especially warnings like `it can go wrong if
...'). Since I'm not subscribed to this list (I like to read it on
Kernel Traffic), CC: by mail would be very nice. Or just direct replies,
if this topic doesn't deserve precious traffic on linux-kernel.

Best Regards,
Marius Gedminas
http://www-public.osf.lt/~mgedmin/

-- 
Any sufficiently advanced bug is indistinguishable from a feature.
                -- Rich Kulawiec
		


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