Message-ID: <1036735964.3dcb55dc6f784@www.candysporks.org>
Date: Fri,  8 Nov 2002 00:12:44 -0600
From: Colin Burnett <cburnett@candysporks.org>
To: LKML <linux-kernel@vger.kernel.org>
Subject: pure raw eth sockets
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I'm at a complete road block here and I appreciate any help!

I'm trying to write a packet generator that generates a packet down to the
destination/src mac address of an eth frame.  However, nothing I find seems to
explain how to do this let alone if it is possible.  As example (for
familiarity), implementing a RARP client (and server).  I first create a socket:

socket(PF_INET, SOCK_PACKET, ETH_P_RARP)

After generating an entire packet (eth frame + RARP request) and sending it via
sendto, tcpdump shows that my packet was encapsulated as the data for an IP
packet.  Definitely not what I want and I suspect it is because I'm passing the
PF_INET domain (it assuming IP?).

So how would I go about implement sending a RARP request (obviously I'm doing
something wrong or assuming something wrong)?  Or more generally, how do I get
pure raw socket access?
-- 


Colin Burnett
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