#windows #hyper-v #vmsavedstatedump #vmrs

vmsavedstatedump_rs

Rust abstractions of VmSavedStateDumpProvider Windows 10 SDK API

1 unstable release

0.2.0 Jul 25, 2019
0.1.3 Dec 20, 2018
0.1.2 Dec 20, 2018
0.1.1 Dec 15, 2018
0.1.0 Dec 14, 2018

#105 in Windows APIs

42 downloads per month

MIT/Apache

1.5MB
718 lines

vmsavedstatetodump-rs

Rust wrapper of VmSavedStateDump

Overview

This project provides a Rust abstraction of VmSavedStateDumpProvider APIs.

VmSavedStateDumpProvider APIs are part of the Windows 10 SDK.

Requirements

For this wrapper to build properly, the following requirements need to be met by the building machine:

  • Windows 10 SDK version 10.0.18362.0.
  • amd64 architecture.

Wrapped Windows 10 SDK APIs

Note: The file paths are based on the default installation path c:\Program Files (x86)\Windows Kits\10.

The relevant Windows 10 SDK files that this project is wrapping are:

  • C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\um\vmsavedstatedumpdefs.h
  • C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\um\vmsavedstatedump.h
  • C:\Program Files (x86)\Windows Kits\10\Lib\10.0.18362.0\um\x64\vmsavedstatedumpprovider.lib
  • C:\Program Files (x86)\Windows Kits\10\bin\10.0.18362.0\x64\vmsavedstatedumpprovider.dll

Usage

To be able to run code that consumes these APIs, vmsavedstatedumpprovider.dll must be discoverable from within the executables/binary runtime.

When using these APIs, the main entry point is to create a VmSavedStateDumpProvider by supplying path(s) to bin/vsv - vmrs VM saved state file(s).

let vmrs_provider = VmSavedStateDumpProvider::load_vmrs("file_path.vmrs");
let bin_vsv_provider = VmSavedStateDumpProvider::load_bin_vsv("file_path.bin", "file_path.vsv");

Once a provider has been instantiated, all of its related APIs can be used in the context of a loaded VM saved state file.

The best source of code examples on how to use the APIs are the integration tests, found here.

How to use locally

Clone the repo to a folder:

git clone https://github.com/rafawo/vmsavedstatetodump-rs.git

Make sure the machine where you are building has Windows 10 SDK version Windows 10 SDK version 10.0.18362.0 installed. Then run:

cd vmsavedstatetodump-rs
cargo build

Open documentation by running:

cargo doc --open

Finally, the build process should have copied vmsavedstatedumpprovider.dll to the root directory. Run tests by running:

cargo test

NOTE:There is a bug in vmsavedstatedumpprovider.dll that prevents multiple saved state files from being loaded in sequence, reusing the same handle. The fix is available starting at Windows 10 SDK version 10.0.18362.0

Crates.io version notes

This section briefly describes notes regarding each published crates.io version of this project.

Ordered from latest to oldest.

  • 0.2.0 Jul 25, 2019
    • Updated default Windows 10 SDK version to 10.0.18362.0
      • This removes the need of using a private vmsavedstatedumpprovider.dll and the one in the SDK contains the fix to the multiple opened files at the same time on a single loaded DLL module.
  • 0.1.3 Dec 20, 2018
    • Cleaned up types and error handling.
    • Internal refactoring and added type aliases for windows types.
    • NOT A RECOMMENDED VERSION TO USE. IT MIGHT BE YANKED IN THE FUTURE
      • This is the last crate version with a hardcoded dependency to Windows 10 SDK 10.0.17763.0, which unfortunately has the broken vmsavedstatedumpprovider.dll version.
  • 0.1.2 Dec 20, 2018
    • Completed the core implementation of the library
    • Added integration tests.
    • Added note to README regarding the broken version of vmsavedstatedumpprovider.dll, and a link to a private fix.
    • NOT A RECOMMENDED VERSION TO USE. IT MIGHT BE YANKED IN THE FUTURE
  • 0.1.1 Dec 14, 2018
    • Minor bug fixes but still missing core functionality.
    • NOT A RECOMMENDED VERSION TO USE. IT MIGHT BE YANKED IN THE FUTURE
  • 0.1.0 Dec 14, 2018
    • First version released for this crate.
    • Contains the basic bindings and rust abstractions to the API but still has a lot of bugs.
    • NOT A RECOMMENDED VERSION TO USE. IT MIGHT BE YANKED IN THE FUTURE

Dependencies