kern/122047: [ext2fs] incorrect handling of UF_IMMUTABLE / UF_APPEND, flag on EXT2FS (maybe others)

[Julian Elischer]

Ighighi wrote:
> On Linux, only the root user may set/clear the immutable/append flags
> on ext2 filesystems... Shouldn't FreeBSD do this too, as a POLA?

No I think it should preserver the BSD scheme where being able to
change the immutable bits is controlled by the system secure level.
(and your UID of course). At least I think that is what I would
expect. (All file systems to behave about the same for a
particular OS.


> 
> Anyway the attached patch extends the previous one by making it possible
> to follow the current Linux convention by setting the sysctl to 0.
> Setting it to 1, allows normal users to set them as well, and setting it
> to -1 preserves current (though erroneous) FreeBSD behavior.


> 
> 
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