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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1774861844; 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=xyb8HJu3evdR5u4pSDSMiqHu9Ih27Kcpw4fmToyE19s=; b=aoT/v38ZZ4PqQkNyzhQAnw76sskF0adpAjDpCyhZqOoJBYXM0D10BN7UqBb/rkNpqiz6CB MDggqPLVJnYh+If5JvNmnghxynA8sUYsnTxMF3h+vp4d4T3NjPywlwuAnWD9og1i+QRPAE aMdnsLQVBcjlctSHcYpgA2Ad/bjqmYo= X-MC-Unique: BSpXRIxpOpW7miJCcATQ2w-1 X-Mimecast-MFC-AGG-ID: BSpXRIxpOpW7miJCcATQ2w_1774861839 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 v3 6/7] net/filter: allow filters on vhost TAP backends Date: Mon, 30 Mar 2026 16:58:14 +0800 Message-ID: <20260330090944.1008027-7-lulu@redhat.com> In-Reply-To: <20260330090944.1008027-1-lulu@redhat.com> References: <20260330090944.1008027-1-lulu@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 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: -5 X-Spam_score: -0.6 X-Spam_bar: / X-Spam_report: (-0.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.54, 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_VALIDITY_CERTIFIED_BLOCKED=1, RCVD_IN_VALIDITY_RPBL_BLOCKED=1, 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: 1774861901232158500 Content-Type: text/plain; charset="utf-8" netfilter_complete() currently rejects any filter attached to a vhost-backed netdev. The AF_PACKET redirector series needs to attach filters to vhost-backed TAP devices, so relax the blanket vhost rejection and keep only the backend-type requirement. Signed-off-by: Cindy Lu --- net/filter.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/net/filter.c b/net/filter.c index 847dd34698..636586e1f3 100644 --- a/net/filter.c +++ b/net/filter.c @@ -264,8 +264,10 @@ static void netfilter_complete(UserCreatable *uc, Erro= r **errp) } =20 if (get_vhost_net(ncs[0])) { - error_setg(errp, "Vhost is not supported"); - return; + if (ncs[0]->info->type !=3D NET_CLIENT_DRIVER_TAP) { + error_setg(errp, "Vhost filter support requires a TAP backend"= ); + return; + } } =20 if (strcmp(nf->position, "head") && strcmp(nf->position, "tail")) { --=20 2.52.0