On 4/22/2020 9:42 AM, James Morris wrote: > On Wed, 15 Apr 2020, deven.desai@xxxxxxxxxxxxxxxxxxx wrote: > >> From: Deven Bowers <deven.desai@xxxxxxxxxxxxxxxxxxx> >> >> Add a security blob and associated allocation, deallocation and set hooks >> for a block_device structure. >> >> Signed-off-by: Deven Bowers <deven.desai@xxxxxxxxxxxxxxxxxxx> > Is there any feedback from block or LSM folk on the addition of a security > blob for block_device here? The addition of a blob looks to have been done correctly. As for it's use, I haven't had the chance to review the patches that use it. I didn't see a patch that implements the hooks in a LSM, but that could just be me. > > IPE uses this is to track the status of integrity verification of e.g. > DM-Verity devices, per this code from a subsequent patch: > > > + ret = security_bdev_setsecurity(dm_table_get_md(v->ti->table)->bdev, > + DM_VERITY_SIGNATURE_SEC_NAME, > + v->sig->sig, v->sig->sig_size); > >
