Re: [ros-dev] [ros-diffs] [hpoussin] 24286: Support mount manager in disk.sys

[Alex Ionescu]

hpoussin(a)svn.reactos.org wrote:
>   Author: hpoussin
>  Date: Thu Sep 28 20:33:12 2006
>  New Revision: 24286
>  
>  URL: http://svn.reactos.org/svn/reactos?rev=24286&view=rev
>  Log:
>  Support mount manager in disk.sys
>  
>  Modified: 
If you're going to add this kind of support, I'd appreciate it if you
took a look at TinyKRNL/WDK to see how this should be done. FTDISK is
responsible for all the code you've added, not disk.sys, and if we're
going to implement NT5+ Storage stack features on top of an NT4 driver,
this will mean either one of these two things:

1) A crappy "ROS" stack that's incompatible with anything NT offers (and
the storage stack is heavily documented in NT, so we're at a big loss if
we do this).
2) Someone will have to eventually re-write even more code to make it
compatible.

I suggest you work on implementing an XP/2K3 style classpnp driver
first. The WDK and TinyKRNL have sample source code (non-reversed), and
there's 50 pages of documentation on it.

Once that works, a new disk.sys can be written (same information as
above is available).

Then ftdisk should follow. It handles all Fault-Tolerance stuff, but
about 6000 lines of it are responsible for the glue layer between the
storage stack. TinyKRNL has just finished implementing it, so the
information and documentation located there should be helpful (using
TinyKRNL documentation and code for learning purposes is fully in-line
with our IP policy and the whole point of the project).

Then partmgr, mountmgr can be written. These are also implemented in
TinyKRNL completely. (Except GPT support).

Finally, some parts of the kernel's IoMgr needs to be changed in the
method in which it sets up disk letters, and kernel32 needs some new
code (which Filip has on his disk).

-- 
Best regards,
Alex Ionescu
Project Lead, TinyKRNL
Kernel-Mode Software Design Engineer, ReactOS