Qt-interest Archive, May 2007
Qt Router programming
Message 1 in thread
Hi folks,
I have a Linux-Box configured with two network cards as a simple router. What I want to do is getting access to both network card´s buffers and manipulate them.
I am very experienced with TCP and UDP socket programming with Qt but for this issue I don't know how to approach it since it deals with routing and thhus I i.e. have to deal with the packet headers as well.
Can anyone give a hint how to aim this problem ?
I appreciate any comment.
Thanks in advance
-- A l e x
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Message 2 in thread
Alexander Carôt wrote:
> Hi folks,
>
> I have a Linux-Box configured with two network cards as a simple router. What I want to do is getting access to both network card´s buffers and manipulate them.
>
> I am very experienced with TCP and UDP socket programming with Qt but for this issue I don't know how to approach it since it deals with routing and thhus I i.e. have to deal with the packet headers as well.
>
> Can anyone give a hint how to aim this problem ?
>
>
You probably want to use raw sockets. I do not see how Qt can help you
here. For a minimal tutorial in german see
http://www.chaostal.de/cgi-bin/parser.cgi?input=article/raw-socket
Best regards,
Andre
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Message 3 in thread
On Wed, May 23, 2007 17:36, "Alexander Carôt" wrote:
> I have a Linux-Box configured with two network cards as a simple router.
> What I want to do is getting access to both network card´s buffers and
> manipulate them.
What exactly do you want to do? What is the purpose of what you want to
do? I guess you don't want to manipulate "buffers" for the sake of
manipulating them (whatever you meant with "buffers") - right?
If you simply want to redirect packets to different addresses and/or ports
- IPTables can help with that - simply write a Qt-interface for some
iptables commands.
Konrad
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Message 4 in thread
Hi,
I was just wondering how to compile Qt quicker for example by just doing the
library and not the demo / sample. Is there a switch to do that ? ( and
cross-plateform please ... )
I didn't found anything in configure tool.
Alexandre
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Message 5 in thread
On 23.05.07 18:51:27, alexandre jenny wrote:
> I was just wondering how to compile Qt quicker for example by just doing the
> library and not the demo / sample. Is there a switch to do that ? ( and
> cross-plateform please ... )
> I didn't found anything in configure tool.
On unix you can use -nomake examples -nomake demos to not build them. In
general win32 and unix Makefiles have a sub-src and sub-tools target
which builds src and tools respectively.
Andreas
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Message 6 in thread
alexandre jenny wrote:
> Hi,
>
> I was just wondering how to compile Qt quicker for example by just doing the
> library and not the demo / sample. Is there a switch to do that ? ( and
> cross-plateform please ... )
> I didn't found anything in configure tool.
>
./configure -nomake examples -nomake demos
I don't think this works on Windows though (I haven't checked). In any
case in all platforms, you should be able to run configure and do a make
sub-src to just build Qt libs. (configure -fast will help you kill
configure time)
Girish
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Message 7 in thread
One 'dirty but crossplatform hack' may be going into "examples"
directory in the source tree and replacing examples.pro by a "dummy"
.pro file containing these two lines:
TEMPLATE = subdirs
SUBDIRS =
the same goes for demos.pro in demos subdirectory.
This way compilation of examples and demos will be always skipped :)
Martin Petricek
On 5/23/07, Girish Ramakrishnan <girish@xxxxxxxxxxxxx> wrote:
> alexandre jenny wrote:
> > Hi,
> >
> > I was just wondering how to compile Qt quicker for example by just doing the
> > library and not the demo / sample. Is there a switch to do that ? ( and
> > cross-plateform please ... )
> > I didn't found anything in configure tool.
> >
>
> ./configure -nomake examples -nomake demos
>
> I don't think this works on Windows though (I haven't checked). In any
> case in all platforms, you should be able to run configure and do a make
> sub-src to just build Qt libs. (configure -fast will help you kill
> configure time)
>
> Girish
>
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Message 8 in thread
Hi Alex!
You could also write a GUI to firwalls like shorewall
(http://www.shorewall.net/) for example. So all you would have to do is
manipulate configuration files.
Bye,
Andy
"Alexander Carôt" <alexander_carot@xxxxxxx> wrote on 23.05.2007 17:36:45:
> Hi folks,
>
> I have a Linux-Box configured with two network cards as a simple
> router. What I want to do is getting access to both network card´s
> buffers and manipulate them.
>
> I am very experienced with TCP and UDP socket programming with Qt
> but for this issue I don't know how to approach it since it deals
> with routing and thhus I i.e. have to deal with the packet headers as
well.
>
> Can anyone give a hint how to aim this problem ?
>
> I appreciate any comment.
>
> Thanks in advance
>
> -- A l e x
> --
> Dipl.-Ing. Alexander Carôt
> Email : Alexander@xxxxxxxx
> Tel.: +49 (0)177 5719797
>
> phd-candidate at www.isnm.de
>
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>
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