24 Jun
2005
24 Jun
'05
1:08 p.m.
-----Original Message-----
From: ros-dev-bounces(a)reactos.com [mailto:ros-dev-bounces@reactos.com] On Behalf Of
Andrei Homescu
Sent: 24. juni 2005 13:50
To: ros-dev(a)reactos.com
Subject: [ros-dev] NDIS development
Hello!
I've been studying the sources for ndis.sys for a while and I started
writing some functions, until now simple ones (wrappers for kernel
calls). I would like to implement NdisAllocatePacketPoolEx and
NdisPacketPoolUsage, but I don't think I can without modifying
NDIS_PACKET_POOL in w32api/include/ddk/ndis.h. Is that data structure
internal to ndis.sys or is publicly documented (and thus I can't touch
it)? I would like to add a couple of new members to count the overflow
packets and the used packets.
You can usually overlay the public structure with an internal NDIS
structure to access internal fields from within NDIS.
I've also been reading "Undocumented Windows
NT" and I have a few
questions regarding some legal issues. Are the function declarations
for documented functions copied&pasted from the DDK?
Most likely they are from MSDN or the Microsoft DDK documentation. If
they are not documented, then they are either different from the
structures used in Windows or from the DDK headers (needed if
compatibility is required). No matter where they came from, they
should have another format and the headers should have different
layouts. If not, then you should rearrange or reformat them to
avoid violating any copyright. Having identical structure layouts
is not violating any copyright. It may violate some crazy patent
though ;-(
The undocumented
function declarations are obtained by disassembly of Windows sources?
Doesn't snooping around kernel code violate any copyright law?
It depends on which country you are in. In Denmark where I live, it
is legal to reverse engineer software for which you own a license
to. See http://reactos.com/wiki/index.php/Intellectual_Property_Policy
for more information.
Best regards,
Andrei Homescu