From nobody Tue Apr 7 19:40:38 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=quarantine dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1773299741; cv=none; d=zohomail.com; s=zohoarc; b=XutK6UBxyyEbharugdSjbXJoJQkymcRURLvr2PnzAvzQP6toi1oExftzH2vLRpMxifM0qmReFerD+8IEocqZKZTr591MVnuXQiufa5Q0+dfOn4dElst5+l0viBC9HUJeBlRYJuLz3WIl6UdRQ2nnG7GTH6TkTNj1PcI+0MdQzWI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1773299741; h=Content-Transfer-Encoding:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To:Cc; bh=rRjhQm8jH2uwusTbR6Ayv6BqAo5wOh620xzE17J8kNQ=; b=FtNdOXOLgXO35nB0W4awNwYLF0dfZI0YkuAUQNoqHeeG+YeF7IY9H3F/e4ntYrQS7sTWiw5snMw5Xj1kAoHG0Y38hFDiFRjg0XA9ZKxvmxY/BoScPw/2tn7eFr7P6NDleFujzBEi5l6EWm04GBgMCFHio4enUN9RNZ1WBBQqhAM= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=quarantine dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1773299741908559.9057415812043; Thu, 12 Mar 2026 00:15:41 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1w0aGP-0004ho-7M; Thu, 12 Mar 2026 03:15:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w0aGN-0004gH-EH for qemu-devel@nongnu.org; Thu, 12 Mar 2026 03:15:19 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1w0aGH-00005c-Ts for qemu-devel@nongnu.org; Thu, 12 Mar 2026 03:15:19 -0400 Received: from mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-43-k_kV1QUmNRSvdeGCqZb69Q-1; Thu, 12 Mar 2026 03:15:09 -0400 Received: from mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.17]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-03.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id 1BCA41977405; Thu, 12 Mar 2026 07:15:08 +0000 (UTC) Received: from S2.redhat.com (unknown [10.72.112.170]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 74B6719540C2; Thu, 12 Mar 2026 07:15:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1773299712; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rRjhQm8jH2uwusTbR6Ayv6BqAo5wOh620xzE17J8kNQ=; b=UD4koe2NFyAQoxsYLPdxKj7C06aAj3G1dRipELfYQpAdz+tJG743HxJgLj9abthfJRzVXp hyE6y0GyNvxQj7HIHvZXHM9GyXGplT4F6accJezYFgRlHIQCZMEnb7zzPmGc26HBnE/Xc8 7sl2B4viv4XYU1gg6zwsfU3Ai/5DMYw= X-MC-Unique: k_kV1QUmNRSvdeGCqZb69Q-1 X-Mimecast-MFC-AGG-ID: k_kV1QUmNRSvdeGCqZb69Q_1773299708 From: Cindy Lu To: lulu@redhat.com, mst@redhat.com, jasowang@redhat.com, zhangckid@gmail.com, lizhijian@fujitsu.com, jmarcin@redhat.com, qemu-devel@nongnu.org Subject: [RFC v2 4/9] net/filter-redirector: add send helpers and netdev counters Date: Thu, 12 Mar 2026 15:09:32 +0800 Message-ID: <20260312071415.1836655-5-lulu@redhat.com> In-Reply-To: <20260312071415.1836655-1-lulu@redhat.com> References: <20260312071415.1836655-1-lulu@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=lulu@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -3 X-Spam_score: -0.4 X-Spam_bar: / X-Spam_report: (-0.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.819, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.903, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: qemu development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1773299742957154100 Content-Type: text/plain; charset="utf-8" Add helper functions for sending packets through the AF_PACKET out socket or the chardev backend, and add netdev RX/TX packet and byte counters to MirrorState. The follow-up receive-path changes use these helpers and expose the new statistics via filter_redirector_get_stats(). Signed-off-by: Cindy Lu --- net/filter-mirror.c | 70 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) diff --git a/net/filter-mirror.c b/net/filter-mirror.c index 915f2f8b35..e57fbc94b8 100644 --- a/net/filter-mirror.c +++ b/net/filter-mirror.c @@ -64,6 +64,11 @@ struct MirrorState { uint64_t indev_bytes; uint64_t outdev_packets; uint64_t outdev_bytes; + /* netdev replay/capture statistics for filter-redirector */ + uint64_t netdev_rx_packets; + uint64_t netdev_rx_bytes; + uint64_t netdev_tx_packets; + uint64_t netdev_tx_bytes; }; =20 typedef struct FilterSendCo { @@ -175,6 +180,59 @@ static int filter_send(MirrorState *s, return data.ret; } =20 +static ssize_t filter_redirector_send_netdev_packet(MirrorState *s, + const struct iovec *io= v, + int iovcnt) +{ + ssize_t size =3D iov_size(iov, iovcnt); + g_autofree uint8_t *buf =3D NULL; + + if (s->out_netfd < 0) { + return -ENODEV; + } + if (size > NET_BUFSIZE) { + return -EINVAL; + } + + buf =3D g_malloc(size); + iov_to_buf(iov, iovcnt, 0, buf, size); + + ssize_t ret =3D send(s->out_netfd, buf, size, 0); + if (ret < 0) { + return -errno; + } + if (ret > 0) { + s->netdev_tx_packets++; + s->netdev_tx_bytes +=3D ret; + } + return ret; +} +static ssize_t filter_redirector_send_chardev_iov(MirrorState *s, + const struct iovec *iov, + int iovcnt) +{ + if (!s->outdev) { + return -ENODEV; + } + + if (!qemu_chr_fe_backend_connected(&s->chr_out)) { + return 0; + } + + return filter_send(s, iov, iovcnt); +} + +static ssize_t filter_redirector_send_netdev_iov(MirrorState *s, + const struct iovec *iov, + int iovcnt) +{ + if (s->out_netfd < 0) { + return -ENODEV; + } + + return filter_redirector_send_netdev_packet(s, iov, iovcnt); +} + static void redirector_to_filter(NetFilterState *nf, const uint8_t *buf, int len) @@ -763,6 +821,18 @@ static GList *filter_redirector_get_stats(NetFilterSta= te *nf) counter->bytes =3D s->outdev_bytes; list =3D g_list_append(list, counter); =20 + counter =3D g_new0(NetFilterCounter, 1); + counter->name =3D g_strdup("netdev_rx"); + counter->packets =3D s->netdev_rx_packets; + counter->bytes =3D s->netdev_rx_bytes; + list =3D g_list_append(list, counter); + + counter =3D g_new0(NetFilterCounter, 1); + counter->name =3D g_strdup("netdev_tx"); + counter->packets =3D s->netdev_tx_packets; + counter->bytes =3D s->netdev_tx_bytes; + list =3D g_list_append(list, counter); + return list; } =20 --=20 2.52.0