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
