Re: Allow direct device access ( cdrom, floppy)

[Hans Verkuil]

Hello Uwe,

Uwe Bonnes wrote:
> appended patch opens the devicefile connected to a drive as connected by
> the user in ~/.wine/config [Drive X] "Device" = "/dev/yyy".
> The appropriate action on that file ( read, write, set_file_pointer, ...)
> succeed according the the righte the user has on that device.
>
> That way, I am able to open a unencrypted DVD  with  "DVD Shrink", inspect
> the structure and watch the movie, without mounting the DVD. ( For
> encryted DVD, I have on my disk the needed translation of the
> DeviceIOControls).

Thank you for your patch! I was also looking into it when a google search
turned up your message on the newsgroup. Are you planning to make a patch
for the DeviceIOControls? I've added them myself in order to allow DVD
Shrink to use encrypted DVDs. As the implementation is just passing on the
DeviceIOControl calls to linux ioctls I wonder why you haven't submitted a
patch for this. If you have no plans for creating a patch, then I'm willing
to do so.

Let me know what you intend to do,

Regards,

                Hans Verkuil

Allow direct device access ( cdrom, floppy)

[Uwe Bonnes]

> > > > > "Hans" == Hans Verkuil <hverkuil(a)xs4all.nl> writes:

Hans> Hello Uwe, Uwe Bonnes wrote:

    >> appended patch opens the devicefile connected to a drive as connected
    >> by the user in ~/.wine/config [Drive X] "Device" = "/dev/yyy".  The
    >> appropriate action on that file ( read, write, set_file_pointer, ...)
    >> succeed according the the righte the user has on that device.
    >> 
    >> That way, I am able to open a unencrypted DVD with "DVD Shrink",
    >> inspect the structure and watch the movie, without mounting the
    >> DVD. ( For encryted DVD, I have on my disk the needed translation of
    >> the DeviceIOControls).

    Hans> Thank you for your patch! I was also looking into it when a google
    Hans> search turned up your message on the newsgroup. Are you planning
    Hans> to make a patch for the DeviceIOControls? I've added them myself
    Hans> in order to allow DVD Shrink to use encrypted DVDs. As the
    Hans> implementation is just passing on the DeviceIOControl calls to
    Hans> linux ioctls I wonder why you haven't submitted a patch for
    Hans> this. If you have no plans for creating a patch, then I'm willing
    Hans> to do so.

    Hans> Let me know what you intend to do,

I patched dll/ntdll/cdrom.c in a quick and dirty way. To get it included  I
wanted to take one step after another. First the basis for the direct file
IO must be approved by Alexandre,

I have appended my ntdll/cdrom.c. It probably need some cleanup for the
IOCTLs for other systems then Linux. Feel free to use my approach, but I
guess your approach may look very similar... 

Bye
-- 
Uwe Bonnes                bon(a)elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. [phone] -------- Fax. [phone] ----------

Allow direct device access ( cdrom, floppy)

[Vitaly Lipatov]

On 20 Декабрь 2003 22:34, Hans Verkuil wrote:
> planning to make a patch for the DeviceIOControls? I've added
> them myself in order to allow DVD Shrink to use encrypted
> DVDs. As the implementation is just passing on the
> Really we will can use any disks with copy protection system?
> -- 
> Lav
> Vitaly Lipatov
> GNU! ALT Linux Team! LaTeX! LyX!

Allow direct device access ( cdrom, floppy)

[Uwe Bonnes]

> > > > > "Vitaly" == Vitaly Lipatov <LAV(a)VL3143.spb.edu> writes:

Vitaly> On 20 äÅËÁÂÒØ 2003 22:34, Hans Verkuil wrote:
    >> planning to make a patch for the DeviceIOControls? I've added them
    >> myself in order to allow DVD Shrink to use encrypted DVDs. As the
    >> implementation is just passing on the
    Vitaly> Really we will can use any disks with copy protection system?

No.

Only disk with the CSS copy protection, where there is a correspondance
between the (in the mean time) well known IOCTL on Linux and on win32 is
known.

Bye
-- 
Uwe Bonnes                bon(a)elektron.ikp.physik.tu-darmstadt.de

Institut fuer Kernphysik  Schlossgartenstrasse 9  64289 Darmstadt
--------- Tel. [phone] -------- Fax. [phone] ----------