Based on an original patch by Timo Kreuzer, with modifications by me to adapt it to latest HEAD and use a single exit path through the Cleanup label. This reliably frees all allocated handles.
The original code returns STATUS_SUCCESS for many cases. This has been preserved.
In the future, it should be checked though whether returning success is appropriate for all these cases.
CORE-6844
- When we are in LiveCD mode (more generally, when hives are shared), load
the system hives as volatile.
- Ignore hive write operations when everything operates in read-only mode
and just return success instead.
- Just return success on hive file I/O if no file is associated with a
given hive. This happens when e.g. a CM hive has a primary but no log.
