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{ "id": 2196232, "url": "http://patchwork.ozlabs.org/api/covers/2196232/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260213071042.3733239-1-lulu@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260213071042.3733239-1-lulu@redhat.com>", "list_archive_url": null, "date": "2026-02-13T07:08:00", "name": "[RFC,0/5] net/filter-redirector: Add AF_PACKET support for vhost-net", "submitter": { "id": 78960, "url": "http://patchwork.ozlabs.org/api/people/78960/?format=api", "name": "Cindy Lu", "email": "lulu@redhat.com" }, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/cover/20260213071042.3733239-1-lulu@redhat.com/mbox/", "series": [ { "id": 492063, "url": "http://patchwork.ozlabs.org/api/series/492063/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=492063", "date": "2026-02-13T07:08:05", "name": "net/filter-redirector: Add AF_PACKET support for vhost-net", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/492063/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2196232/comments/", "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=CXuzVTXs;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; helo=lists.gnu.org;\n envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org;\n receiver=patchwork.ozlabs.org)" ], "Received": [ "from lists.gnu.org (lists.gnu.org [209.51.188.17])\n\t(using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fC3Jl2zNtz1xvQ\n\tfor <incoming@patchwork.ozlabs.org>; Fri, 13 Feb 2026 18:12:23 +1100 (AEDT)", "from localhost ([::1] helo=lists1p.gnu.org)\n\tby lists.gnu.org with esmtp (Exim 4.90_1)\n\t(envelope-from <qemu-devel-bounces@nongnu.org>)\n\tid 1vqnKQ-0002Zs-Nn; Fri, 13 Feb 2026 02:11:02 -0500", "from eggs.gnu.org ([2001:470:142:3::10])\n by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <lulu@redhat.com>) id 1vqnKO-0002ZR-GZ\n for qemu-devel@nongnu.org; Fri, 13 Feb 2026 02:11:00 -0500", "from us-smtp-delivery-124.mimecast.com ([170.10.133.124])\n by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256)\n (Exim 4.90_1) (envelope-from <lulu@redhat.com>) id 1vqnKM-0005bC-Kl\n for qemu-devel@nongnu.org; Fri, 13 Feb 2026 02:11:00 -0500", "from mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com\n (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by\n relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3,\n cipher=TLS_AES_256_GCM_SHA384) id us-mta-68-Wq8vh4GPPTy-4gSJFhrtcA-1; Fri,\n 13 Feb 2026 02:10:51 -0500", "from mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com\n (mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.4])\n (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest\n SHA256)\n (No client certificate requested)\n by mx-prod-mc-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS\n id 40A061956094; Fri, 13 Feb 2026 07:10:50 +0000 (UTC)", "from S2.redhat.com (unknown [10.72.112.33])\n by mx-prod-int-01.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP\n id B753B30001BE; Fri, 13 Feb 2026 07:10:46 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1770966656;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:mime-version:mime-version:\n content-transfer-encoding:content-transfer-encoding;\n bh=aAeo8Qp29w58NpL2Ar0gIFc3G/2b+aZ7G1Yo/rVw+Uk=;\n b=CXuzVTXsEhjoaqVLA5NnDn00BYoGd4wkg0PQXgSRCn1G7fNyZa5SUUtNljKx2eHedHPMuG\n mt3qTzyxPTaL4pgEMqm1bIhHewytGrSnV35S4icmiNvnKhnxeR3Qo8pm1u53y4cxJDTO8W\n BwhRy+NPy4Se9HHLEdSnN9z52WFkTqI=", "X-MC-Unique": "Wq8vh4GPPTy-4gSJFhrtcA-1", "X-Mimecast-MFC-AGG-ID": "Wq8vh4GPPTy-4gSJFhrtcA_1770966650", "From": "Cindy Lu <lulu@redhat.com>", "To": "lulu@redhat.com, mst@redhat.com, jasowang@redhat.com, zhangckid@gmail.com,\n lizhijian@fujitsu.com, qemu-devel@nongnu.org", "Subject": "[RFC 0/5] net/filter-redirector: Add AF_PACKET support for vhost-net", "Date": "Fri, 13 Feb 2026 15:08:00 +0800", "Message-ID": "<20260213071042.3733239-1-lulu@redhat.com>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Scanned-By": "MIMEDefang 3.4.1 on 10.30.177.4", "Received-SPF": "pass client-ip=170.10.133.124; envelope-from=lulu@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com", "X-Spam_score_int": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham 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 <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "This series extends filter-redirector to support vhost-net backends by\nintroducing AF_PACKET based packet capture and injection.\n\nTODO\n========\nThis series introduces basic support for filter-redirector, enabling\nsimple mirroring of VM1's ingress traffic to VM2's mirror port. \nAdditional functionality including filter_buffer and other filter features\nwill be added in following versions.\n\nExample Usage\n=============\nPrimary VM (mirror incoming packets to secondary via chardev socket):\n\n -netdev tap,id=net0,vhost=on,...\n -chardev socket,id=mirror0,host=...,port=...,server=on,wait=off\n -object filter-redirector,id=vm1redir,netdev=net0,in_netdev=net0,outdev=mirror0\n\nSecondary VM (receive mirrored packets):\n\n -chardev socket,id=red0,host=...,port=...,reconnect-ms=1000\n -object filter-redirector,id=vm2redir,netdev=net0,indev=red0,out_netdev=net0\n\nTesting\n=======\n- Tested with vhost=on/off TAP netdev on x86_64\n\nCindy Lu (5):\n net/filter: Allow redirector on vhost backends\n net/filter-redirector: add in/out_netdev properties\n net/filter-redirector: Add AF_PACKET sockets initialization\n net/filter-redirector: add AF_PACKET redirect datapath\n qapi: add in/out_netdev to filter-redirector\n\n net/filter-mirror.c | 460 +++++++++++++++++++++++++++++++++++++++++---\n net/filter.c | 6 +-\n qapi/qom.json | 19 +-\n 3 files changed, 459 insertions(+), 26 deletions(-)" }