From patchwork Mon Aug 16 08:52:20 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12437981 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0C746C4338F for ; Mon, 16 Aug 2021 08:52:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E2AAD61A6F for ; Mon, 16 Aug 2021 08:52:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235149AbhHPIxI (ORCPT ); Mon, 16 Aug 2021 04:53:08 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:11698 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235109AbhHPIxF (ORCPT ); Mon, 16 Aug 2021 04:53:05 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id 0C864520F2C; Mon, 16 Aug 2021 11:52:30 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1629103950; bh=K9e95vKrX+vI3giEHBb/r5WlATln69n3y2C0yRMrXCE=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=bN/U1BU2frI9QgVluNQAqwDiIJb5xslpeOfJftuQrbhZpdS+0fcvBsF0YaMpJfHgW btf7Ag0tn5esRF0j1O+X1o6i1Z7yc7eSdeUAj64eDyRVrNycVS+TTZAsMPqSG8ZTI8 cCyNO1DuEdp6N/qPUsqs+1EsfxduVj1e4neNdRY+jayjVnSuGu5j90606FxbB4sHWl FoA1UvsBnNUIXcyLYu/4OGJh0dj1jShv+js/syELXISfVNfPca/XqtsuI5yMOKr93h UcG+HhvCmSnroiQESOReg8n7VdsmHoovRoRwvSXSmCvKMWK5iidCiDTgDs/H6pwYJG 0ZUKHuTCAwnHg== Received: from mail-hq2.kaspersky.com (unknown [91.103.66.206]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (Client CN "mail-hq2.kaspersky.com", Issuer "Kaspersky MailRelays CA G3" (verified OK)) by mailhub13.kaspersky-labs.com (Postfix) with ESMTPS id C1EA0520FCD; Mon, 16 Aug 2021 11:52:29 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.16.171.77) by hqmailmbx3.avp.ru (10.64.67.243) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.14; Mon, 16 Aug 2021 11:52:29 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Arseny Krasnov , Colin Ian King , Andra Paraschiv , Norbert Slusarek CC: , , , , , Subject: [RFC PATCH v3 4/6] virtio/vsock: support MSG_EOR bit processing Date: Mon, 16 Aug 2021 11:52:20 +0300 Message-ID: <20210816085223.4174366-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210816085036.4173627-1-arseny.krasnov@kaspersky.com> References: <20210816085036.4173627-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.16.171.77] X-ClientProxiedBy: hqmailmbx3.avp.ru (10.64.67.243) To hqmailmbx3.avp.ru (10.64.67.243) X-KSE-ServerInfo: hqmailmbx3.avp.ru, 9 X-KSE-AntiSpam-Interceptor-Info: scan successful X-KSE-AntiSpam-Version: 5.9.20, Database issued on: 08/16/2021 08:40:34 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 0 X-KSE-AntiSpam-Info: Lua profiles 165570 [Aug 16 2021] X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: LuaCore: 454 454 39c6e442fd417993330528e7f9d13ac1bf7fdf8c X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: 127.0.0.199:7.1.2;arseniy-pc.avp.ru:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;kaspersky.com:7.1.1 X-KSE-AntiSpam-Info: Rate: 0 X-KSE-AntiSpam-Info: Status: not_detected X-KSE-AntiSpam-Info: Method: none X-KSE-Antiphishing-Info: Clean X-KSE-Antiphishing-ScanningType: Deterministic X-KSE-Antiphishing-Method: None X-KSE-Antiphishing-Bases: 08/16/2021 08:42:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 16.08.2021 4:09:00 X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-BulkMessagesFiltering-Scan-Result: InTheLimit X-KLMS-Rule-ID: 52 X-KLMS-Message-Action: clean X-KLMS-AntiSpam-Status: not scanned, disabled by settings X-KLMS-AntiSpam-Interceptor-Info: not scanned X-KLMS-AntiPhishing: Clean, bases: 2021/08/16 06:42:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/08/16 02:10:00 #17042267 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org If packet has 'EOR' bit - set MSG_EOR in 'recvmsg()' flags. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- net/vmw_vsock/virtio_transport_common.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 4d5a93beceb0..59ee1be5a6dd 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -76,8 +76,12 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info, goto out; if (msg_data_left(info->msg) == 0 && - info->type == VIRTIO_VSOCK_TYPE_SEQPACKET) + info->type == VIRTIO_VSOCK_TYPE_SEQPACKET) { pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOM); + + if (info->msg->msg_flags & MSG_EOR) + pkt->hdr.flags |= cpu_to_le32(VIRTIO_VSOCK_SEQ_EOR); + } } trace_virtio_transport_alloc_pkt(src_cid, src_port, @@ -460,6 +464,9 @@ static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk, if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOM) { msg_ready = true; vvs->msg_count--; + + if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SEQ_EOR) + msg->msg_flags |= MSG_EOR; } virtio_transport_dec_rx_pkt(vvs, pkt);