From patchwork Mon Jan 25 11:12:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12045293 X-Patchwork-Delegate: kuba@kernel.org 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=-19.0 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=unavailable 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 97F46C433E0 for ; Tue, 26 Jan 2021 05:11:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7007922273 for ; Tue, 26 Jan 2021 05:11:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728586AbhAZFLX (ORCPT ); Tue, 26 Jan 2021 00:11:23 -0500 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:42232 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728954AbhAYNez (ORCPT ); Mon, 25 Jan 2021 08:34:55 -0500 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id CE6D652173C; Mon, 25 Jan 2021 14:13:12 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail; t=1611573193; bh=OoyG1NEkipZz5JH0DB/J6p6IKUoFHFhQ28t/7kM571I=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=cK0jX1gUpjCUEx5zOWt6CkbsT8Q8xbb2X/l5INI96bbRqaXe/Vj2suXD8Os//Rv7k +nLte1BwDCDq7P6KVfOFBl5aanYObCE3KHs1LGK1UigkV9XpSXVGptdOZ7fhJy7yx8 W4JXZIrSYSdzrT3+I6rSdGWAE3QlV3ZIK5B9Xpms= Received: from mail-hq2.kaspersky.com (unknown [91.103.66.206]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (Client CN "mail-hq2.kaspersky.com", Issuer "Kaspersky MailRelays CA G3" (verified OK)) by mailhub13.kaspersky-labs.com (Postfix) with ESMTPS id 630A752173A; Mon, 25 Jan 2021 14:13:12 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.68.129) 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 15.1.2044.4; Mon, 25 Jan 2021 14:13:11 +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 , Jeff Vander Stoep CC: , , , , , Subject: [RFC PATCH v3 04/13] af_vsock: implement send logic for SOCK_SEQPACKET Date: Mon, 25 Jan 2021 14:12:54 +0300 Message-ID: <20210125111257.598507-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210125110903.597155-1-arseny.krasnov@kaspersky.com> References: <20210125110903.597155-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.129] X-ClientProxiedBy: hqmailmbx2.avp.ru (10.64.67.242) 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: 5.9.16, Database issued on: 01/25/2021 10:59:54 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 161363 [Jan 25 2021] X-KSE-AntiSpam-Info: LuaCore: 421 421 33a18ad4049b4a5e5420c907b38d332fafd06b09 X-KSE-AntiSpam-Info: Version: 5.9.16.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_date, moscow} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;kaspersky.com:7.1.1;127.0.0.199:7.1.2;arseniy-pc.avp.ru:7.1.1 X-KSE-AntiSpam-Info: Rate: 10 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: 01/25/2021 11:02:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 1/25/2021 10:11:00 AM 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: 2021/01/25 10:04:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/01/25 05:31:00 #16022694 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC This adds some logic to current stream enqueue function for SEQPACKET support: 1) Send record begin marker with length of record. 2) Return value from enqueue function is wholevrecord length or error for SOCK_SEQPACKET. Signed-off-by: Arseny Krasnov --- include/net/af_vsock.h | 1 + net/vmw_vsock/af_vsock.c | 16 ++++++++++++++-- 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index 46073842d489..ec6bf4600ef8 100644 --- a/include/net/af_vsock.h +++ b/include/net/af_vsock.h @@ -136,6 +136,7 @@ struct vsock_transport { bool (*stream_allow)(u32 cid, u32 port); /* SEQ_PACKET. */ + bool (*seqpacket_seq_send_len)(struct vsock_sock *, size_t len); size_t (*seqpacket_seq_get_len)(struct vsock_sock *); ssize_t (*seqpacket_dequeue)(struct vsock_sock *, struct msghdr *, size_t len, int flags); diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 3b266880b7c8..4600c1ec3bb3 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1767,6 +1767,12 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, if (err < 0) goto out; + if (sk->sk_type == SOCK_SEQPACKET) { + err = transport->seqpacket_seq_send_len(vsk, len); + if (err < 0) + goto out; + } + while (total_written < len) { ssize_t written; @@ -1845,8 +1851,14 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, } out_err: - if (total_written > 0) - err = total_written; + if (total_written > 0) { + /* Return number of written bytes only if: + * 1) SOCK_STREAM socket. + * 2) SOCK_SEQPACKET socket when whole buffer is sent. + */ + if (sk->sk_type == SOCK_STREAM || total_written == len) + err = total_written; + } out: release_sock(sk); return err;