Re: [RFC PATCH v9 10/16] dm-verity: consume root hash digest and signature data via LSM hook

[Fan Wu]

On Tue, Jan 31, 2023 at 02:22:01PM +0100, Roberto Sassu wrote:
> On Mon, 2023-01-30 at 14:57 -0800, Fan Wu wrote:
> > From: Deven Bowers <deven.desai@xxxxxxxxxxxxxxxxxxx>
> > 
> > dm-verity provides a strong guarantee of a block device's integrity. As
> > a generic way to check the integrity of a block device, it provides
> > those integrity guarantees to its higher layers, including the filesystem
> > level.
> 
> I think you could reuse most of is_trusted_verity_target(), in
> particular dm_verity_get_root_digest().
> 
> And probably, the previous patch is not necessary.
> 
> Roberto
> 
Thanks for the info. This function seems could be used to get the roothash
but for saving the signature we still need the hook function in the previous
patch.

-Fan