Project Status

Refer to project scope here

High level tasks completed

• POSIX compliant IO wrapper on Win32 Overlapped IO: this enables Unix based OpenSSH code to work for and on Windows.
• Visual Studio 2015 solution to build OpenSSH for Windows.
• Secure architecture for Windows: OpenSSH server side architecture is altered for Windows adhering to its security principles. This is done with minimal impact to overall source layout.
• Secure ssh-agent: A different version of agent is authored for Windows to fit Windows security model and enable a Single Sign-On experience.

Work in progress (ETA - 9/23)

• Improving Terminal experience: Interactive remote shell experience in the current version of this project is impacted by a bunch of issues. Following is being done to address these:
  • Rewriting client side ANSI parser to enable ssh client to accurately interpret and render VT100 (mapping VT100 to Windows console calls).
  • Enable ssh server to support rich Windows console application over remote sessions (mapping Windows console calls to VT100)
  • Validating the following key strokes behavior on multiple SSH targets - CR+LF, BS, Tab and Arrow Keys.

Work in pipeline

• Unicode support in Windows: Windows APIs are typically UTF-16 based while on Unix, its UTF-8. Need to figure out a workable solution that would support both models.
• POSIX File API support in Windows: Currently SFTP and SCP have significant Windows differentiated code. This enables effective Unix based code usage on Windows.
• Code cleanup and refactoring: In entire project specific logic has been ifdef'ed and spread out at various places in the project in an attempt to achieve a workable solution on Windows. These need to be cleaned up and refactored as per OpenBSD's coding guidelines in order to get to an acceptable state.
• Syncing Win32 fork with the latest changes from OpenSSH main repo.
• SAL annotate Win32 specific code. Run static analysis.
• Fix bugs to be addressed for this milestone.