Changes minzip and recovery's file signature verification to work on
memory regions, rather than files.
For packages which are regular files, install.cpp now mmap()s them
into memory and then passes the mapped memory to the verifier and to
the minzip library.
Support for files which are raw block maps (which will be used when we
have packages written to encrypted data partitions) is present but
largely untested so far.
Bug: 12188746
Change-Id: I12cc3e809834745a489dd9d4ceb558cbccdc3f71
This assumes that the metadata is correctly defined in fstab.
Which apparently some devices don't do.
Bug: 8766487
Bug: 12112624
Change-Id: I1b14b9d4c888e9348527984be3dce04bdd9f4de0
When installing a package, we should have /tmp and /cache mounted and
nothing else. Ensure this is true by explicitly mounting them and
unmounting everything else as the first step of every install.
Also fix an error in the progress bar that crops up when you do
multiple package installs in one instance of recovery.
Change-Id: I4837ed707cb419ddd3d9f6188b6355ba1bcfe2b2
