platform: fedora core 2.
language:c/c++

I want to use the driver of network interface card directly.
that means i can write a new protocol which is not base
on ip.

how?
any archive to follow?

i'll appreciate you for any information.

I think you don't need to write drivers if you intend to use MAC. But i may be wrong.

yes, i want not to write any drivers.
but, i want to communicate with the driver of NIC directly to send packet generated by me.

maybe the ioctl function is helpful. is it right?

Hi,

You should investigate the usage of the SOCK_RAW type of socket construction (man socket). My understanding of it is that it will allow direct communications to the driver, so what whatever I/O occurs is up to you (after the ethernet and MAC layer of course).

thx rstewart.

i have read the manual of socket. but i think there is a little different from you.
i consider the sock_raw is based on ip yet, so i can generate all type of packet based
on ip protocol. but, what is about the others.

are you true we can send packet not based on ip using the sock_raw.

maybe, you are right.

can you give me an example.

Hello,

I don't have any code handy where I currently work. I used raw sockets a long time ago (in a galaxy far far away, no wait that is another story) in order to be able to send/receive data packets for a very simply MAC layer hub tester. Basically I simply used the socket() function "socket(int domain, int type, int protocol)" with the values of PF_PACKET for domain, and SOCK_RAW for type (I don't remember which value I used for the protocol, sorry).

Take a look at the socket, packet, and protocol man pages - they should be able to point you in the right direction.

Hope this helps you!

thx rstewart.

you are right. i really appreciate your help.