Hello Jan! --- Jan Kratochvil lace@jankratochvil.net wrote:
Hi,
On Mon, 10 Nov 2003 20:19:45 +0100, Rapha�l Junqueira wrote: ...
BTW, I have got as far with loading secdrv.sys as crashing on
unimplemented
IoCreateDevice. I believe the Io* functions will be the biggest
problems.
It is no problem loading it and initializing it by Captive NTFS for GNU/Linux: http://www.jankratochvil.net/project/captive/
./captive-cmdline --load-module=/tmp/ntoskrnl.exe --filesystem=/tmp/secdrv.sys --debug-messages /dev/null
(some trivia extensions done before a moment are currently only in CVS:
http://cvs.jankratochvil.net/viewcvs/*checkout*/captive/README?rev=HEAD
section 'CVS Bleeding Edge')
'secdrv.sys' creates devices: "\Device\AscKmd" (symlinked to "\DosDevices\AscKmd") "\Device\Secdrv" (symlinked to "\DosDevices\Secdrv")
It returns STATUS_SUCCESS afterwards. The log can be seen at http://www.jankratochvil.net/priv/secdrv/secdrv-init-onlysecdrv.log
I used secdrv.sys http://www.jankratochvil.net/priv/secdrv/secdrv.sys md5: bb6fbebebbd14429021f2851a60d8546
downloaded by Google from http://www.kids-station.com/game/Patrician2/secdrv.sys
Further run fails for Captive as 'secdrv.sys' is somehow broken driver as it does not provide any way to mount a filesystem. :-?
Currently the example above requires 'ntoskrnl.exe' of NT-5.1 (XP). Tried Service Pack 1 Free Build and Service Pack 1 Checked Build. It would not be needed for such simple driver as 'secdrv.sys' but Captive currently requires it for its 'ntfs.sys' emulation, reasons below:
http://www.jankratochvil.net/project/captive/doc/Details.html.pl#emulmeth_fs
The next step is to combine Captive with Wine to be able to run the W32 userland application with 'secdrv.sys'. Captive ported only the W32 kernel part of ReactOS to the GNU/Linux environment, no W32 userland code is present there.
Hmm. We really shouldnt need to make much changes to WINE to use Captive I would think. Once Captive+SevDrv and WINE are running you should have full access to the CDROM drive.
Well, i don't think implementing simple (stupid?) Io* functions
will be
diffcult.
(A)Synchronous/(Non)Alertable IRPs (I/O Request Packet) can be tricky although it is generally solved by ReactOS/Captive and it is questionable how much it is perused by 'secdrv.sys' IRP handling code.
We are still having trouble loading SecDrv.sys on native ROS.
For me, the problem is what secdrv want to do with this functions
(maybe a
voodoo test for safely check if the subsystem have a correct
behavior): ...
- RtlUnwind
This is a part of undocumented SEH (Structured Exception Handling) implemented by ReactOS while fixed by Captive and partially combined with native 'ntoskrnl.exe'. I still have some suspections on the correctness of the current implementation but it works fine for 'ntfs.sys'.
We have a new SEH implementation that is not merged yet. The implementation we have is patent friendly as it implement SEH totaly differntly by using macros kind of like WINE.
Its looking good!
Thanks Steven
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