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Forum Topic - porting winpcap->libpcap: (5 Items)

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j v

03/10/2008 9:33 AM

post5641

Hello everybody

I may ask  a stupid question but I am completely new to QNX and I have a problem. I have to port a specific application 
which is currently running on Windows with the library Winpcap and aims at read and write AFDX datas on an ethernet 
adapter. 
I rewrote it so that it uses Libpcap, but If am able to read using the filter module nfm-bpf.so, I cannot find any 
module for writing operations.
So I have to write a specific filter module in order to write (playing the same role as nfm-nraw.so which is not open 
source).
I wonder if I can find the source code of a filter module so I can have
a start to write my own.
I could not find it on the site but I am a bit lost and don't know how i can dowload the necessary files.

Robert Craig

03/10/2008 10:15 AM

post5645

RE: porting winpcap->libpcap

You are correct.  The nfm-bpf.so is a read only interface. Out of curiosity,
does this have to be for io-net?  io-pkt already has a fully ported libpcap
available for you to use.

	Robert.

-----Original Message-----
From: j v [mailto:jeanmarieverret@gmail.com] 
Sent: Monday, March 10, 2008 9:34 AM
To: drivers-networking
Subject: porting winpcap->libpcap

Hello everybody

I may ask  a stupid question but I am completely new to QNX and I have a
problem. I have to port a specific application which is currently running on
Windows with the library Winpcap and aims at read and write AFDX datas on an
ethernet adapter. 
I rewrote it so that it uses Libpcap, but If am able to read using the
filter module nfm-bpf.so, I cannot find any module for writing operations.
So I have to write a specific filter module in order to write (playing the
same role as nfm-nraw.so which is not open source).
I wonder if I can find the source code of a filter module so I can have
a start to write my own.
I could not find it on the site but I am a bit lost and don't know how i can
dowload the necessary files.

_______________________________________________
Networking Drivers
http://community.qnx.com/sf/go/post5641

j v

03/10/2008 11:39 AM

post5647

Re: RE: porting winpcap->libpcap

It does not have to be io-net but I have to be sure everything I use is free, even for commercial use. 
Furthermore, I have, for the moment, no idea of how to use io-pkt.
But, besides that, I am totally free to use whatever I want.
I just have to enable the use of Libpcap on QNX.
So if it is free I would be perfectly happy to use it.

Robert Craig

03/10/2008 11:48 AM

post5649

RE: RE: porting winpcap->libpcap

Hmmm...  I'm not sure what you mean by "free".  Our products are enver
"free" for use in commercial products (http://www.qnx.com/company/hsm/).
Let's just put it as anything that you do with io-pkt has the same legal /
commercial / royalty model as io-net.

Io-pkt is a drop in replacement for io-net / tcpip at the socket level and,
given what you are doing, provides a complete BPF interface that will let
you port your application in a much more straight forward manner.  The Wiki
pages cover everything that you need to get started.

   Robert.


-----Original Message-----
From: j v [mailto:jeanmarieverret@gmail.com] 
Sent: Monday, March 10, 2008 11:40 AM
To: drivers-networking
Subject: Re: RE: porting winpcap->libpcap

It does not have to be io-net but I have to be sure everything I use is
free, even for commercial use. 
Furthermore, I have, for the moment, no idea of how to use io-pkt.
But, besides that, I am totally free to use whatever I want.
I just have to enable the use of Libpcap on QNX.
So if it is free I would be perfectly happy to use it.


_______________________________________________
Networking Drivers
http://community.qnx.com/sf/go/post5647

j v

03/10/2008 12:35 PM

post5653

Re: RE: RE: porting winpcap->libpcap

I am sorry for my bad english, by "free" I actually meant open source.
I think I'll follow your counsel and use io-pkt.
Anyway thanks a lot for your help.

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