On Mon, Jan 17, 2011 at 11:43 PM, John Mahoney [off-list ref] wrote:

On Mon, Jan 17, 2011 at 4:24 PM, Kfir Lavi [off-list ref] wrote:

quoted

Hi,
How can one implement custom header network protocol.
I mean header that wraps regular network packets like ethernet, udp, tcp,
etc...
The sending of this custom packets is done between processes running
locally.
ie. I get a Ethernet packet, inspect it, then add my custom header and
forward
it to another process that listens to a socket, and expect to get data
wrapped with
this custom header.

What is a good way to go about and implement this thing?

Have you looked at the tun/tap drivers?

Yes I did, they can work for me, but I need to modify the code.

They expect  certain protocols and are not passing anything.
It is a bit ugly to go this way.

Also, try asking this question on a network specific list.

--
John

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