[Buildroot] [PATCH 1/1] iputils: set the permissions with IPUTILS_PERMISSIONS

Petr Vorel petr.vorel at gmail.com
Tue Jun 18 20:52:12 UTC 2019


Hi Peter,

>  >> >> Is there an easy way to detect
>  >> >> iso9660 usage?

>  >> >  BR2_TARGET_ROOTFS_ISO9660 of course. Well, that one is special actually because
>  >> > in case of BR2_TARGET_ROOTFS_INITRAMFS or BR2_TARGET_ROOTFS_ISO9660_INITRD, the
>  >> > rootfs is not actually stored in the iso9660.

>  >> >  But I don't know which other filesystems lack support for xattrs.

>  >> axfs, cramfs, romfs and yaffs2 as well afaik.
>  > Thanks a lot.

>  > I guess BR2_TARGET_ROOTFS_TAR (and other tarballs supported)
>  > supports xattrs (--xattrs-include='*' in fs/tar/tar.mk).

>  > It'd be nice if buildroot has BR2_TARGET_ROOTFS_HAS_XATTRS.

> The problem is that you can enable several rootfs formats at the same
> time (E.G. tar and cramfs), so we would need to only use xattrs if no
> file system without xattrs support is enabled.

> And things would break if you do a build with E.G. only tar rootfs
> support and then afterwards enable cramfs without doing a clean
> rebuild - Yes, I know you are not supposed to do that, but it does
> happen.

Thanks for detailed info. I guess in that case is setuid really the only option.

Kind regards,
Petr


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