From nobody Mon Nov 17 17:53:07 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1614092452; cv=none; d=zohomail.com; s=zohoarc; b=Nbxc+keJHUplZ+jSyzdDOeDUTYlibANvyfaJnRNuW0uK8obuIBG8npfYA+wrDGspL0UAQMVThZygSpoF4qpZ8w7b6uaQcBYBvTkhH3Rz/9CBBeD5liDnpWmMRie1wDu2laqlE9/qn4CBuKk8AlrNpCNF7vsVhJh2rPutUBawTbo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1614092452; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=lgtPA01RUNgHlkKTIvcWt2T+4Qe1IRlbp49TuuOEeM4=; b=VQ0RW3OlmiPjXVL0+9mkodH6Boe5eKtbmN/WcCpMNlWSNXgA486Clk8+VKLcTmgPrkXfFkPemTF5wiTM6Lz41jJbl9wojoq5tD1Ep797UDcm6v1oFadB6Lrvvw9dilMSyPqfe9QKtvVtHsBHzoTyvki5SId4RPq1JC3TogcrhFc= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=fail; 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=fail header.from= (p=none dis=none) header.from= Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1614092451383837.2112015270471; Tue, 23 Feb 2021 07:00:51 -0800 (PST) Received: from localhost ([::1]:56844 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lEZB9-0002pz-Kv for importer@patchew.org; Tue, 23 Feb 2021 10:00:47 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:43038) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lEZ15-0008VI-3V for qemu-devel@nongnu.org; Tue, 23 Feb 2021 09:50:23 -0500 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:43612) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1lEZ12-0003PB-N3 for qemu-devel@nongnu.org; Tue, 23 Feb 2021 09:50:22 -0500 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-351--B5zgdaENy2A79ALjFFuAQ-1; Tue, 23 Feb 2021 09:49:10 -0500 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id B1F4D80405B; Tue, 23 Feb 2021 14:48:42 +0000 (UTC) Received: from localhost (ovpn-114-203.ams2.redhat.com [10.36.114.203]) by smtp.corp.redhat.com (Postfix) with ESMTP id E16C919CB1; Tue, 23 Feb 2021 14:48:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1614091819; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=lgtPA01RUNgHlkKTIvcWt2T+4Qe1IRlbp49TuuOEeM4=; b=ZpGDnA8+vCoCt0qhLu0cRX1547UKVtejBTwZyyNsZxtk+fP41PlASnzW0vGXOXohY6bs9V BDy89sSMLQF0AYZ+GJbxHEKWkLZMTYT0Oi++BnkBnmB2c12inOsJAQ8EY//LBvx8qIBbOL QH5NkKY19WRqTpuDsFNb3X03wPqk4KI= X-MC-Unique: -B5zgdaENy2A79ALjFFuAQ-1 From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PATCH v3 11/12] vhost-user-blk-test: test discard/write zeroes invalid inputs Date: Tue, 23 Feb 2021 14:46:52 +0000 Message-Id: <20210223144653.811468-12-stefanha@redhat.com> In-Reply-To: <20210223144653.811468-1-stefanha@redhat.com> References: <20210223144653.811468-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=stefanha@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable 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=216.205.24.124; envelope-from=stefanha@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 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, MIME_BASE64_TEXT=1.741, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Laurent Vivier , Thomas Huth , qemu-block@nongnu.org, "Michael S. Tsirkin" , Peter Maydell , Coiby Xu , Max Reitz , Stefan Hajnoczi , Paolo Bonzini , Raphael Norwitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Exercise input validation code paths in block/export/vhost-user-blk-server.c. Signed-off-by: Stefan Hajnoczi --- tests/qtest/vhost-user-blk-test.c | 124 ++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) diff --git a/tests/qtest/vhost-user-blk-test.c b/tests/qtest/vhost-user-blk= -test.c index 61beee52d3..dc9d7a31ae 100644 --- a/tests/qtest/vhost-user-blk-test.c +++ b/tests/qtest/vhost-user-blk-test.c @@ -94,6 +94,124 @@ static uint64_t virtio_blk_request(QGuestAllocator *all= oc, QVirtioDevice *d, return addr; } =20 +static void test_invalid_discard_write_zeroes(QVirtioDevice *dev, + QGuestAllocator *alloc, + QTestState *qts, + QVirtQueue *vq, + uint32_t type) +{ + QVirtioBlkReq req; + struct virtio_blk_discard_write_zeroes dwz_hdr; + struct virtio_blk_discard_write_zeroes dwz_hdr2[2]; + uint64_t req_addr; + uint32_t free_head; + uint8_t status; + + /* More than one dwz is not supported */ + req.type =3D type; + req.data =3D (char *) dwz_hdr2; + dwz_hdr2[0].sector =3D 0; + dwz_hdr2[0].num_sectors =3D 1; + dwz_hdr2[0].flags =3D 0; + dwz_hdr2[1].sector =3D 1; + dwz_hdr2[1].num_sectors =3D 1; + dwz_hdr2[1].flags =3D 0; + + virtio_blk_fix_dwz_hdr(dev, &dwz_hdr2[0]); + virtio_blk_fix_dwz_hdr(dev, &dwz_hdr2[1]); + + req_addr =3D virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr2)); + + free_head =3D qvirtqueue_add(qts, vq, req_addr, 16, false, true); + qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr2), false, true); + qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr2), 1, true, + false); + + qvirtqueue_kick(qts, dev, vq, free_head); + + qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, + QVIRTIO_BLK_TIMEOUT_US); + status =3D readb(req_addr + 16 + sizeof(dwz_hdr2)); + g_assert_cmpint(status, =3D=3D, VIRTIO_BLK_S_UNSUPP); + + guest_free(alloc, req_addr); + + /* num_sectors must be less than config->max_write_zeroes_sectors */ + req.type =3D type; + req.data =3D (char *) &dwz_hdr; + dwz_hdr.sector =3D 0; + dwz_hdr.num_sectors =3D 0xffffffff; + dwz_hdr.flags =3D 0; + + virtio_blk_fix_dwz_hdr(dev, &dwz_hdr); + + req_addr =3D virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr)); + + free_head =3D qvirtqueue_add(qts, vq, req_addr, 16, false, true); + qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true); + qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true, + false); + + qvirtqueue_kick(qts, dev, vq, free_head); + + qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, + QVIRTIO_BLK_TIMEOUT_US); + status =3D readb(req_addr + 16 + sizeof(dwz_hdr)); + g_assert_cmpint(status, =3D=3D, VIRTIO_BLK_S_IOERR); + + guest_free(alloc, req_addr); + + /* sector must be less than the device capacity */ + req.type =3D type; + req.data =3D (char *) &dwz_hdr; + dwz_hdr.sector =3D TEST_IMAGE_SIZE / 512 + 1; + dwz_hdr.num_sectors =3D 1; + dwz_hdr.flags =3D 0; + + virtio_blk_fix_dwz_hdr(dev, &dwz_hdr); + + req_addr =3D virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr)); + + free_head =3D qvirtqueue_add(qts, vq, req_addr, 16, false, true); + qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true); + qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true, + false); + + qvirtqueue_kick(qts, dev, vq, free_head); + + qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, + QVIRTIO_BLK_TIMEOUT_US); + status =3D readb(req_addr + 16 + sizeof(dwz_hdr)); + g_assert_cmpint(status, =3D=3D, VIRTIO_BLK_S_IOERR); + + guest_free(alloc, req_addr); + + /* reserved flag bits must be zero */ + req.type =3D type; + req.data =3D (char *) &dwz_hdr; + dwz_hdr.sector =3D 0; + dwz_hdr.num_sectors =3D 1; + dwz_hdr.flags =3D ~VIRTIO_BLK_WRITE_ZEROES_FLAG_UNMAP; + + virtio_blk_fix_dwz_hdr(dev, &dwz_hdr); + + req_addr =3D virtio_blk_request(alloc, dev, &req, sizeof(dwz_hdr)); + + free_head =3D qvirtqueue_add(qts, vq, req_addr, 16, false, true); + qvirtqueue_add(qts, vq, req_addr + 16, sizeof(dwz_hdr), false, true); + qvirtqueue_add(qts, vq, req_addr + 16 + sizeof(dwz_hdr), 1, true, + false); + + qvirtqueue_kick(qts, dev, vq, free_head); + + qvirtio_wait_used_elem(qts, dev, vq, free_head, NULL, + QVIRTIO_BLK_TIMEOUT_US); + status =3D readb(req_addr + 16 + sizeof(dwz_hdr)); + g_assert_cmpint(status, =3D=3D, VIRTIO_BLK_S_UNSUPP); + + guest_free(alloc, req_addr); +} + /* Returns the request virtqueue so the caller can perform further tests */ static QVirtQueue *test_basic(QVirtioDevice *dev, QGuestAllocator *alloc) { @@ -235,6 +353,9 @@ static QVirtQueue *test_basic(QVirtioDevice *dev, QGues= tAllocator *alloc) g_free(data); =20 guest_free(alloc, req_addr); + + test_invalid_discard_write_zeroes(dev, alloc, qts, vq, + VIRTIO_BLK_T_WRITE_ZEROES); } =20 if (features & (1u << VIRTIO_BLK_F_DISCARD)) { @@ -263,6 +384,9 @@ static QVirtQueue *test_basic(QVirtioDevice *dev, QGues= tAllocator *alloc) g_assert_cmpint(status, =3D=3D, 0); =20 guest_free(alloc, req_addr); + + test_invalid_discard_write_zeroes(dev, alloc, qts, vq, + VIRTIO_BLK_T_DISCARD); } =20 if (features & (1u << VIRTIO_F_ANY_LAYOUT)) { --=20 2.29.2