CompOS no longer talks directly to DICE (compos_key_helper does). odsign
no longer promotes or deletes instance CompOS files, and the key files
don't exist any more.
Bug: 218494522
Test: Manual; trigger compilation, reboot & watch odsign
Change-Id: Ibc251180122e6e4789b4be5669da3da67517b49c
Add the compos_key_helper domain for the process which has access to
the signing key, make sure it can't be crashdumped. Also extend that
protection to diced & its HAL.
Rename compos_verify_key to compos_verify, because it doesn't verify
keys any more.
Move exec types used by Microdroid to file.te in the host rather than
their own dedicated files.
Bug: 218494522
Test: atest CompOsSigningHostTest CompOsDenialHostTest
Change-Id: I942667355d8ce29b3a9eb093e0b9c4f6ee0df6c1
Remove some allow rules for odsign, since it no longer directly
modifies CompOs files. Instead allow it to run compos_verify_key in
its own domain.
Grant compos_verify_key what it needs to access the CompOs files and
start up the VM.
Currently we directly connect to the CompOs VM; that will change once
some in-flight CLs have landed.
As part of this I moved the virtualizationservice_use macro to
te_macros so I can use it here. I also expanded it to include
additional grants needed by any VM client that were previously done
for individual domains (and then deleted those rules as now
redundant).
I also removed the grant of VM access to all apps; instead we allow it
for untrusted apps, on userdebug or eng builds only. (Temporarily at
least.)
Bug: 193603140
Test: Manual - odsign successfully runs the VM at boot when needed.
Change-Id: I62f9ad8c7ea2fb9ef2d468331e26822d08e3c828
Grant access to odsign to read & delete pending key files. Eventually
we will grant the CompOS daemon write access.
Bug: 190166662
Test: Via odsign; no denials seen.
Change-Id: I6d3c3e5b2aec8ef65bd28cbb274d18263534ce66
These properties are used to communicate odsign status, and allow init
to evict keys and start zygote at the correct moments in time.
Bug: 165630556
Test: no denials from init/odsign
Change-Id: I813e5c1c93d6f00a251a9cce02d0b74e5372c1ce
And introduce a new SELinux key domain solely for use by the
on-device signing daemon.
Bug: 165630556
Test: no denials on boot
Change-Id: If0f6797d7326e98f169639169adec6460689f5ca
