AVF: allow FD -> IBinder.

Okay, so before we have two APIs:
- connectToVsockServer "AB"
- connectVsock "A"

This adds:
- binderFromPreconnectedClient "B"

That is:
- connectToVsockServer = connectVsock + binderFromPreconnectedClient

Normally, in the same process, you do all of this, but to
pass a connection to another process, imagine
processes "Q -> R -> S", where:
- Q is client
- R is VM creator
- S is VM

Then Q can call binderFromPreconnectedClient, and it can
implement the provider by calling an API on R which will
return the results of R calling connectVsock.

Non-binder use of connectVsock is not recommended.

Bugs: me and without this, extra hops cost performannce
Test: atest MicrodroidTestApp - several tests pass, so letting TH run
the rest

Change-Id: I670243714bbb6167a1fdae2bb898b1f5a9d01f5f
2 files changed
tree: 7b6004a6972495a5e4478ccc04ee56db86765f74
  1. android/
  2. build/
  3. docs/
  4. guest/
  5. libs/
  6. microfuchsia/
  7. tests/
  8. .clang-format
  9. .gitignore
  10. Android.bp
  11. dice_for_avf_guest.cddl
  12. OWNERS
  13. PREUPLOAD.cfg
  14. README.md
  15. rustfmt.toml
  16. TEST_MAPPING
README.md

Android Virtualization Framework (AVF)

Android Virtualization Framework (AVF) provides secure and private execution environments for executing code. AVF is ideal for security-oriented use cases that require stronger isolation assurances over those offered by Android’s app sandbox.

Visit our public doc site to learn more about what AVF is, what it is for, and how it is structured. This repository contains source code for userspace components of AVF.

If you want a quick start, see the getting started guideline and follow the steps there.

For in-depth explanations about individual topics and components, visit the following links.

AVF components:

AVF APIs:

How-Tos: