linux-ext4 - Re: [PATCH v2] create_inode: set xattrs to the root directory as well

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Date:   Thu, 30 Jul 2020 09:27:50 +0200
From:   Antoine Tenart <antoine.tenart@...tlin.com>
To:     Andreas Dilger <adilger@...ger.ca>
Cc:     Ext4 Developers List <linux-ext4@...r.kernel.org>,
        matthew.weber@...kwellcollins.com, thomas.petazzoni@...tlin.com
Subject: Re: [PATCH v2] create_inode: set xattrs to the root directory as well

Hello,

Gentle ping. What's the status of this patch?

Thanks!
Antoine

Quoting Andreas Dilger (2020-07-17 13:17:08)
> 
> > On Jul 17, 2020, at 4:08 AM, Antoine Tenart <antoine.tenart@...tlin.com> wrote:
> > 
> > populate_fs do copy the xattrs for all files and directories, but the
> > root directory is skipped and as a result its extended attributes aren't
> > set. This is an issue when using mkfs to build a full system image that
> > can be used with SElinux in enforcing mode without making any runtime
> > fix at first boot.
> > 
> > This patch adds logic to set the root directory's extended attributes.
> > 
> > Signed-off-by: Antoine Tenart <antoine.tenart@...tlin.com>
> 
> Reviewed-by: Andreas Dilger <adilger@...ger.ca>
> 
> > ---
> > 
> > Since v1:
> >  - Moved the set_inode_xattr logic for the root directory
> >    from __populate_fs to populate_fs2.
> > 
> > misc/create_inode.c | 8 ++++++++
> > 1 file changed, 8 insertions(+)
> > 
> > diff --git a/misc/create_inode.c b/misc/create_inode.c
> > index e8d1df6b55a5..fe66faf1b53d 100644
> > --- a/misc/create_inode.c
> > +++ b/misc/create_inode.c
> > @@ -1050,9 +1050,17 @@ errcode_t populate_fs2(ext2_filsys fs, ext2_ino_t parent_ino,
> >       file_info.path_max_len = 255;
> >       file_info.path = calloc(file_info.path_max_len, 1);
> > 
> > +     retval = set_inode_xattr(fs, root, source_dir);
> > +     if (retval) {
> > +             com_err(__func__, retval,
> > +                     _("while copying xattrs on root directory"));
> > +             goto out;
> > +     }
> > +
> >       retval = __populate_fs(fs, parent_ino, source_dir, root, &hdlinks,
> >                              &file_info, fs_callbacks);
> > 
> > +out:
> >       free(file_info.path);
> >       free(hdlinks.hdl);
> >       return retval;
> > --
> > 2.26.2
> > 
> 
> 
> Cheers, Andreas
> 
> 
> 
> 
> 

-- 
Antoine Ténart, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com