{"id":2196227,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2196227/?format=json","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/1.0/projects/14/?format=json","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":""},"msgid":"<20260213071042.3733239-6-lulu@redhat.com>","date":"2026-02-13T07:08:05","name":"[RFC,5/5] qapi: add in/out_netdev to filter-redirector","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"d9331058c6a7a329785c34965db03f4c8bdb627e","submitter":{"id":78960,"url":"http://patchwork.ozlabs.org/api/1.0/people/78960/?format=json","name":"Cindy Lu","email":"lulu@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260213071042.3733239-6-lulu@redhat.com/mbox/","series":[{"id":492063,"url":"http://patchwork.ozlabs.org/api/1.0/series/492063/?format=json","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/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2196227/checks/","tags":{},"headers":{"Return-Path":"","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=dbRRzf+x;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1770966697;\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 in-reply-to:in-reply-to:references:references;\n bh=7XqBAWjNfsCkJWkYmrEfgAktWS9f9SYgLSbaxuuB2Dc=;\n b=dbRRzf+x1zp/vIEjndMvidrJop5eMuHwcExJ97wtJf/r1q2CGY2tq4hdfVIpbm0eqb+5vD\n pgi3GDtKs2HtxCfycGkg4Xwn/plFx6+GZotycMLTp+TFBlEb02bC4OmbYaLxRsmXs5HE3b\n G7r1WszHJ158lnO57Q/LsWE0ohSt4+k=","X-MC-Unique":"K0e8aoZdNBSe0yWh8aIrMA-1","X-Mimecast-MFC-AGG-ID":"K0e8aoZdNBSe0yWh8aIrMA_1770966692","From":"Cindy Lu ","To":"lulu@redhat.com, mst@redhat.com, jasowang@redhat.com, zhangckid@gmail.com,\n lizhijian@fujitsu.com, qemu-devel@nongnu.org","Subject":"[RFC 5/5] qapi: add in/out_netdev to filter-redirector","Date":"Fri, 13 Feb 2026 15:08:05 +0800","Message-ID":"<20260213071042.3733239-6-lulu@redhat.com>","In-Reply-To":"<20260213071042.3733239-1-lulu@redhat.com>","References":"<20260213071042.3733239-1-lulu@redhat.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Scanned-By":"MIMEDefang 3.4.1 on 10.30.177.111","Received-SPF":"pass client-ip=170.10.129.124; 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_H4=0.001, RCVD_IN_MSPIKE_WL=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 ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"Document the new in_netdev and out_netdev properties in the QAPI\nschema for FilterRedirectorProperties:\n\n- in_netdev: Name of an input netdev endpoint captured via AF_PACKET.\n Allows capturing packets directly from a TAP interface, bypassing\n the QEMU network stack.\n\n- out_netdev: Name of an output netdev endpoint injected via AF_PACKET.\n Allows injecting packets directly to a TAP interface.\n\nThese properties are mutually exclusive with each other and with\nindev/outdev on the same direction. They enable filter-redirector\nto work with vhost-net backends for live migration packet mirroring.\n\nSigned-off-by: Cindy Lu \n---\n qapi/qom.json | 19 +++++++++++++++++--\n 1 file changed, 17 insertions(+), 2 deletions(-)","diff":"diff --git a/qapi/qom.json b/qapi/qom.json\nindex b1fe55944c..a62a824403 100644\n--- a/qapi/qom.json\n+++ b/qapi/qom.json\n@@ -476,8 +476,15 @@\n #\n # Properties for filter-redirector objects.\n #\n-# At least one of @indev or @outdev must be present. If both are\n-# present, they must not refer to the same character device backend.\n+# At least one of @indev, @outdev, @in_netdev, or @out_netdev must be\n+# present.\n+#\n+# If both @indev and @outdev are present, they must not refer to the\n+# same character device backend.\n+#\n+# @in_netdev and @out_netdev are Linux AF_PACKET based endpoints.\n+# They are mutually exclusive with each other, and also with\n+# @indev/@outdev on the same direction.\n #\n # @indev: the name of a character device backend from which packets\n # are received and redirected to the filtered network device\n@@ -485,6 +492,12 @@\n # @outdev: the name of a character device backend to which all\n # incoming packets are redirected\n #\n+# @in_netdev: the name of an input netdev endpoint captured via\n+# AF_PACKET\n+#\n+# @out_netdev: the name of an output netdev endpoint injected via\n+# AF_PACKET\n+#\n # @vnet_hdr_support: if true, vnet header support is enabled\n # (default: false)\n #\n@@ -498,6 +511,8 @@\n 'base': 'NetfilterProperties',\n 'data': { '*indev': 'str',\n '*outdev': 'str',\n+ '*in_netdev': 'str',\n+ '*out_netdev': 'str',\n '*vnet_hdr_support': 'bool',\n '*enable_when_stopped': 'bool' } }\n \n","prefixes":["RFC","5/5"]}