tree a06ed6ecee30bb8143b8bfdf446c864bc159c01b
parent 547ed6f113a876d1d9380d0f48687d5d0a7fccf4
author Tom Cherry <tomcherry@google.com> 1559853680 -0700
committer Tom Cherry <tomcherry@google.com> 1559922747 +0000

logd: don't drop user/groups/capabilities/priority in drop_privs()

On Android, unlike POSIX, groups and capabilities are able to be set
per thread.  This is useless however, since threads are not a security
boundary.  This change drops the logic to set groups and capabilities
per thread and instead leaves all threads running with the initial
user and groups.

This does still drop some capabilities if they're unneeded due to
features being disabled.

This also moves the setpriority() call from code into the init script.

Test: logd runs with the expected user/groups and with the expected
      capabilities and priority without any errors

Change-Id: Ibb0e529ea1574a2b8ec391a2678504ca9fbe19be