| commit | 87bf7257b9f003a166b2853f83fcbe9f30dc8c1e | [log] [tgz] |
|---|---|---|
| author | Greg Kerr <kerrnel@chromium.org> | Mon Jul 18 17:10:20 2016 |
| committer | chrome-bot <chrome-bot@chromium.org> | Fri Jul 22 20:36:01 2016 |
| tree | 36debb296f0cf29bdbf5e5618e52e4ed0f0d1c49 | |
| parent | cdf8058d7b9eaff9a0ec22ce74adb294189226c0 [diff] |
Make component registration atomic, and check version rollback. This changes makes the component registration atomic, so that when updating a component, a crash does not leave the component in a bad state. This is accomplished by having generational folders of a component and a symlink that is atomically updated to point at the most recent. BUG=chromium:588220 TEST=emerge imageloader and run the test client with the test data CQ-DEPEND=CL:361410,CL:361584 Change-Id: I731eab542e095e3c5b43e194374cf891bf302426 Reviewed-on: https://chromium-review.googlesource.com/361560 Commit-Ready: Greg Kerr <kerrnel@chromium.org> Tested-by: Greg Kerr <kerrnel@chromium.org> Reviewed-by: Ricky Zhou <rickyz@chromium.org>
This aims to provide a generic utility to load (mount) and unload (unmount) verified disk images through DBus IPC.
imageloaderimageloadclientimageloader can be run as root and can handle mounting and unmounting of disk images. imageloadclient is a simple client (intended to be run as chronos) that can talk to imageloader and ask it to mount and unmount stuff. When imageloader is not running, DBus can invoke it via the one time run option (imageloader -o) and get the task done.