tree 94dea46358dccd7280c0be17e8b0619e6997640e
parent 8438a7297c16c1ee73f4e67efef18ad9062e15f1
author Todd Kennedy <toddke@google.com> 1461871613 -0700
committer Todd Kennedy <toddke@google.com> 1461965023 -0700

Restrict updates of system packages

By declaring a <restrict-update> tag in its manifest, a system package
can restrict its update to be the singular package that has the same
given hash. An update's hash is the SHA-512 across all its APKs [i.e.
for splits, the SHA-512 is calculated over the concatenation of the
base plus all splits].

The restriction only applies to system packages.

Bug: 28398205
Change-Id: Iec493fc8ef27edee53f1d437cb0caaa78782f329