From patchwork Tue Jan 13 21:23:54 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Williamson X-Patchwork-Id: 2222 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n0DLKkot012171 for ; Tue, 13 Jan 2009 13:20:47 -0800 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753540AbZAMVYX (ORCPT ); Tue, 13 Jan 2009 16:24:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754190AbZAMVYX (ORCPT ); Tue, 13 Jan 2009 16:24:23 -0500 Received: from g1t0029.austin.hp.com ([15.216.28.36]:31443 "EHLO g1t0029.austin.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753540AbZAMVYW (ORCPT ); Tue, 13 Jan 2009 16:24:22 -0500 Received: from g1t0038.austin.hp.com (g1t0038.austin.hp.com [16.236.32.44]) by g1t0029.austin.hp.com (Postfix) with ESMTP id B9E213806B; Tue, 13 Jan 2009 21:24:21 +0000 (UTC) Received: from ldl.fc.hp.com (ldl.fc.hp.com [15.11.146.30]) by g1t0038.austin.hp.com (Postfix) with ESMTP id 992E430057; Tue, 13 Jan 2009 21:24:21 +0000 (UTC) Received: from localhost (ldl.fc.hp.com [127.0.0.1]) by ldl.fc.hp.com (Postfix) with ESMTP id 511C139C003; Tue, 13 Jan 2009 14:24:21 -0700 (MST) X-Virus-Scanned: Debian amavisd-new at ldl.fc.hp.com Received: from ldl.fc.hp.com ([127.0.0.1]) by localhost (ldl.fc.hp.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id pyue1IUR-s09; Tue, 13 Jan 2009 14:24:20 -0700 (MST) Received: from [192.168.1.60] (squirrel.fc.hp.com [15.11.146.57]) by ldl.fc.hp.com (Postfix) with ESMTP id 9E91A39C001; Tue, 13 Jan 2009 14:24:19 -0700 (MST) Subject: [PATCH 4/5] virtio-net: Enable filtering based on MAC, promisc, broadcast and allmulti From: Alex Williamson To: kvm Cc: qemu-devel , Mark McLoughlin Organization: HP OSLO R&D Date: Tue, 13 Jan 2009 14:23:54 -0700 Message-Id: <1231881834.9095.194.camel@bling> Mime-Version: 1.0 X-Mailer: Evolution 2.24.2 Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Signed-off-by: Alex Williamson --- qemu/hw/virtio-net.c | 22 ++++++++++++++++++++++ 1 files changed, 22 insertions(+), 0 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/qemu/hw/virtio-net.c b/qemu/hw/virtio-net.c index c5d9952..99e582f 100644 --- a/qemu/hw/virtio-net.c +++ b/qemu/hw/virtio-net.c @@ -273,6 +273,25 @@ static int receive_header(VirtIONet *n, struct iovec *iov, int iovcnt, return offset; } +static int receive_filter(VirtIONet *n, const uint8_t *buf, int size) +{ + static uint8_t bcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + + if (n->promisc) + return 1; + + if ((buf[0] & 1) && n->allmulti) + return 1; + + if (!memcmp(buf, bcast, sizeof(bcast))) + return 1; + + if (!memcmp(buf, n->mac, 6)) + return 1; + + return 0; +} + static void virtio_net_receive(void *opaque, const uint8_t *buf, int size) { VirtIONet *n = opaque; @@ -282,6 +301,9 @@ static void virtio_net_receive(void *opaque, const uint8_t *buf, int size) if (!do_virtio_net_can_receive(n, size)) return; + if (!receive_filter(n, buf, size)) + return; + /* hdr_len refers to the header we supply to the guest */ hdr_len = n->mergeable_rx_bufs ? sizeof(struct virtio_net_hdr_mrg_rxbuf) : sizeof(struct virtio_net_hdr);