LWIO Watch: Week 1

I’ve gotten a lot of requests from people asking that they be updated on the status of lwio. We’re working on weekly milestones and I’ll update you on our progress on a week by week basis.

This week – ending tomorrow Friday January 16th, 2009

1) The Nt APIs have been wired to the IO Manager. This means that you can do a NtCreateFile, NtReadFile, NtWriteFile, etc from a user mode client to the lwiod – we’re routing requests to the smb redirector and the posix subsystem.
2) We’ve just enabled the posix subsystem, the redirector and the server driver – the IoMgr will load these drivers in.
3) We’ve nuked the old iomgr which used the old smb client model.
4) The srvsvcd daemon is up and running and will provider server side support for NetShareEnum, NetShareAdd, NetShareDelete, NetShareGetInfo and NetShareSetInfo. The srvsvcd daemon is critical because it represents the end to end server-side RPC pipe making device i/o calls into the server driver.
5) Sriram has pretty much gotten SMB session setup working and will start adding support for tree connects, followed by opens, reads, writes and closes. These five calls are basically what we’ll need for the named pipe server to work.
6) Last and the best, we’ve wired DCE/RPC to call the actual NtCreateFile calls to the redirector for client side named pipes to work.

The plan will be to self-host the lsass subsystem against lwio by the end of the month. That is also our timeline to push this branch of code into trunk where it will start undergoing our rigorous battery of daily bvt, stress and performance tests.

Thanks for reading!

Update Jan 16, 2009: Brian just informed me that lwio is now self-hosting the lsassd daemon over the new smb redirector driver. That means our end-to-end iomgr is fully operational!