tree 6ddc285b40c25542a3c99900a4905e93c5298cdd
parent e97969b4d0c6eaeeb373d716238e47e49c80d992
author Jeff Sharkey <jsharkey@android.com> 1477946029 -0600
committer Jeff Sharkey <jsharkey@google.com> 1477946119 +0000

Public volumes belong to a single user.

When a public (vfat) device is inserted, it's strongly associated
with the current foreground user, and no other users should be able
to access it, since otherwise that would be a cross-user data leak.

To use the device under a different user, switch users and then
eject/remount the device.

Test: verified user isolation of USB drive
Bug: 32523490
Change-Id: I590c791996f1fea8d78f625dc942d149f1f41614