[Buildroot] [PATCH 15/15] docs/manual: add a section about SELinux

Thomas Petazzoni thomas.petazzoni at bootlin.com
Fri Jul 31 13:15:57 UTC 2020

On Fri, 31 Jul 2020 14:52:14 +0200
Antoine Tenart <antoine.tenart at bootlin.com> wrote:

> > Unsure how to tie this into the documentation as the user won't have
> > to enable more then the filesystem xattrs.  Maybe xattrs would make
> > sense to globally turn on as well?  
> That should be possible, I don't know to what extend do we want to fix
> the kernel configuration. As other SELinux Kconfig options are already
> turned on by libselinux, I'd say that could make sense.

The problem with xattr is that it is typically a per-filesystem option:

./fs/jffs2/Kconfig:config JFFS2_FS_XATTR
./fs/cifs/Kconfig:config CIFS_XATTR
./fs/f2fs/Kconfig:config F2FS_FS_XATTR
./fs/Kconfig:config TMPFS_XATTR
./fs/reiserfs/Kconfig:config REISERFS_FS_XATTR
./fs/erofs/Kconfig:config EROFS_FS_XATTR
./fs/ext2/Kconfig:config EXT2_FS_XATTR
./fs/squashfs/Kconfig:config SQUASHFS_XATTR
./fs/ubifs/Kconfig:config UBIFS_FS_XATTR

Which one do we enable ? All of them, and if the corresponding
filesystem is not enabled, the option will be re-disabled ? That's a
possible option, I'm not sure it's really nice but it should work.

Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering

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