From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 12 Sep 2001 05:33:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 12 Sep 2001 05:33:10 -0400 Received: from samar.sasken.com ([164.164.56.2]:64224 "EHLO samar.sasken.com") by vger.kernel.org with ESMTP id ; Wed, 12 Sep 2001 05:32:57 -0400 Message-ID: <3B9F2BC8.D647A7A@sasken.com> Date: Wed, 12 Sep 2001 15:02:56 +0530 From: Manoj Sontakke Organization: Sasken Communication Technologies Limited. X-Mailer: Mozilla 4.72 [en] (X11; U; Linux 2.2.14-5.0 i686) X-Accept-Language: en MIME-Version: 1.0 To: LKML Subject: Packet tapping Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, Is it possible to tap a packet and send it to a userlevel program before it is sent to appropriate receive function (say ip_rcv()). The user level program will give the packet back to the kernel for delivery to appropriate receive function. In short, is it possible to have a protocol stack (between layer 2 and 3) to be implemented in useland. Is Tun/Tap driver useful here? Thanks for all the help Manoj