From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1J8wld-0008P9-RJ for qemu-devel@nongnu.org; Sun, 30 Dec 2007 06:55:45 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1J8wlb-0008Ox-E9 for qemu-devel@nongnu.org; Sun, 30 Dec 2007 06:55:44 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1J8wlb-0008Ou-7s for qemu-devel@nongnu.org; Sun, 30 Dec 2007 06:55:43 -0500 Received: from wa-out-1112.google.com ([209.85.146.179]) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1J8wla-0002at-Sx for qemu-devel@nongnu.org; Sun, 30 Dec 2007 06:55:43 -0500 Received: by wa-out-1112.google.com with SMTP id k22so7423278waf.18 for ; Sun, 30 Dec 2007 03:55:41 -0800 (PST) Message-ID: Date: Sun, 30 Dec 2007 18:55:41 +0700 From: "Mulyadi Santosa" Subject: Re: [Qemu-devel] qemu networking help In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: ryanwsmith@gmail.com Hi... > I'm currently working on a project where we're using qemu to trace > information flow through the operating system. One of the things > that we'd like to do is trace network data as it flows through the > operating system. I've been reading through the code, and I've > gotten a bit lost. I gather that slirp is where data comes and goes > from the host operating system, but I'm looking for the section of > code that sends and receives data from the guest operating system. I > read through the network device code (ne2000.c), and my guess is that > the inb and outb functions are used to transfer data to the guest, > but I'm not quite certain how that is done. Is there anything that > anyone can point me to that would explain the process of getting data > from the networking device to the guest operating system? Also, is > there anything that explains the ne2k networking device a little > more, and could explain what all the registers are and how to use > them? Thanks in advance for any help you may offer. Maybe it's not so helpful, but have you considered simply running tcpdump in each guest OS? or running combination of netfilter+ulogd (again, in each guest OS)? regards, Mulyadi.