From patchwork Tue Mar 23 13:08:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157749 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, 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 A8198C433DB for ; Tue, 23 Mar 2021 13:10:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6A352619BF for ; Tue, 23 Mar 2021 13:10:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231383AbhCWNJj (ORCPT ); Tue, 23 Mar 2021 09:09:39 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:46337 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231411AbhCWNJP (ORCPT ); Tue, 23 Mar 2021 09:09:15 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id 03B845216B8; Tue, 23 Mar 2021 16:09:08 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616504948; bh=6mKRrts4oV1cKdQ+DaGsBJr6pu1G5LW75JbNv3Kmwqg=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=DaD764uK8T+l9GWWfGDao2R2g+us7zE1yRZ/XosnPC1rQlfchzWGyNG5VOz+h8fbv s3jectlkVuYhFtaeKzaBEtrGC5oK01J7vq7ECwJdbtiChME5qw9fs6Xr7sCHTxTWsh nFK99r3p9LlhVt6pVQBo12Kq8tBFeCQkIvUsaW4nWbkP+EuvwuKXqsli1qMR1s8ijL cm1qD5LxnvOPVUjnt2hhUNh1mR3uuOm3jjXmvnGeW2+b+XOzv9Z6un8E/hJOIvxtlp wZEUahj3nQCdEG5EZNRLWfkes0q8cp78YhT++7wGo7KPjZzDS0OhC3VdkNWP1zxrTL HkS18WNFxrlPw== 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 20DE9521708; Tue, 23 Mar 2021 16:09:07 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.68.128) 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 15.1.2176.2; Tue, 23 Mar 2021 16:09:06 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Colin Ian King , Norbert Slusarek , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 01/22] af_vsock: update functions for connectible socket Date: Tue, 23 Mar 2021 16:08:34 +0300 Message-ID: <20210323130837.2459550-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.128] 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: 5.9.20, Database issued on: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This prepares af_vsock.c for SEQPACKET support: some functions such as setsockopt(), getsockopt(), connect(), recvmsg(), sendmsg() are shared between both types of sockets, so rename them in general manner. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- net/vmw_vsock/af_vsock.c | 64 +++++++++++++++++++++------------------- 1 file changed, 34 insertions(+), 30 deletions(-) diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 5546710d8ac1..656370e11707 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -604,8 +604,8 @@ static void vsock_pending_work(struct work_struct *work) /**** SOCKET OPERATIONS ****/ -static int __vsock_bind_stream(struct vsock_sock *vsk, - struct sockaddr_vm *addr) +static int __vsock_bind_connectible(struct vsock_sock *vsk, + struct sockaddr_vm *addr) { static u32 port; struct sockaddr_vm new_addr; @@ -685,7 +685,7 @@ static int __vsock_bind(struct sock *sk, struct sockaddr_vm *addr) switch (sk->sk_socket->type) { case SOCK_STREAM: spin_lock_bh(&vsock_table_lock); - retval = __vsock_bind_stream(vsk, addr); + retval = __vsock_bind_connectible(vsk, addr); spin_unlock_bh(&vsock_table_lock); break; @@ -767,6 +767,11 @@ static struct sock *__vsock_create(struct net *net, return sk; } +static bool sock_type_connectible(u16 type) +{ + return type == SOCK_STREAM; +} + static void __vsock_release(struct sock *sk, int level) { if (sk) { @@ -785,7 +790,7 @@ static void __vsock_release(struct sock *sk, int level) if (vsk->transport) vsk->transport->release(vsk); - else if (sk->sk_type == SOCK_STREAM) + else if (sock_type_connectible(sk->sk_type)) vsock_remove_sock(vsk); sock_orphan(sk); @@ -947,7 +952,7 @@ static int vsock_shutdown(struct socket *sock, int mode) lock_sock(sk); if (sock->state == SS_UNCONNECTED) { err = -ENOTCONN; - if (sk->sk_type == SOCK_STREAM) + if (sock_type_connectible(sk->sk_type)) goto out; } else { sock->state = SS_DISCONNECTING; @@ -960,7 +965,7 @@ static int vsock_shutdown(struct socket *sock, int mode) sk->sk_shutdown |= mode; sk->sk_state_change(sk); - if (sk->sk_type == SOCK_STREAM) { + if (sock_type_connectible(sk->sk_type)) { sock_reset_flag(sk, SOCK_DONE); vsock_send_shutdown(sk, mode); } @@ -1015,7 +1020,7 @@ static __poll_t vsock_poll(struct file *file, struct socket *sock, if (!(sk->sk_shutdown & SEND_SHUTDOWN)) mask |= EPOLLOUT | EPOLLWRNORM | EPOLLWRBAND; - } else if (sock->type == SOCK_STREAM) { + } else if (sock_type_connectible(sk->sk_type)) { const struct vsock_transport *transport; lock_sock(sk); @@ -1262,8 +1267,8 @@ static void vsock_connect_timeout(struct work_struct *work) sock_put(sk); } -static int vsock_stream_connect(struct socket *sock, struct sockaddr *addr, - int addr_len, int flags) +static int vsock_connect(struct socket *sock, struct sockaddr *addr, + int addr_len, int flags) { int err; struct sock *sk; @@ -1413,7 +1418,7 @@ static int vsock_accept(struct socket *sock, struct socket *newsock, int flags, lock_sock(listener); - if (sock->type != SOCK_STREAM) { + if (!sock_type_connectible(sock->type)) { err = -EOPNOTSUPP; goto out; } @@ -1490,7 +1495,7 @@ static int vsock_listen(struct socket *sock, int backlog) lock_sock(sk); - if (sock->type != SOCK_STREAM) { + if (!sock_type_connectible(sk->sk_type)) { err = -EOPNOTSUPP; goto out; } @@ -1534,11 +1539,11 @@ static void vsock_update_buffer_size(struct vsock_sock *vsk, vsk->buffer_size = val; } -static int vsock_stream_setsockopt(struct socket *sock, - int level, - int optname, - sockptr_t optval, - unsigned int optlen) +static int vsock_connectible_setsockopt(struct socket *sock, + int level, + int optname, + sockptr_t optval, + unsigned int optlen) { int err; struct sock *sk; @@ -1616,10 +1621,10 @@ static int vsock_stream_setsockopt(struct socket *sock, return err; } -static int vsock_stream_getsockopt(struct socket *sock, - int level, int optname, - char __user *optval, - int __user *optlen) +static int vsock_connectible_getsockopt(struct socket *sock, + int level, int optname, + char __user *optval, + int __user *optlen) { int err; int len; @@ -1687,8 +1692,8 @@ static int vsock_stream_getsockopt(struct socket *sock, return 0; } -static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg, - size_t len) +static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, + size_t len) { struct sock *sk; struct vsock_sock *vsk; @@ -1827,10 +1832,9 @@ static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg, return err; } - static int -vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, - int flags) +vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, + int flags) { struct sock *sk; struct vsock_sock *vsk; @@ -2006,7 +2010,7 @@ static const struct proto_ops vsock_stream_ops = { .owner = THIS_MODULE, .release = vsock_release, .bind = vsock_bind, - .connect = vsock_stream_connect, + .connect = vsock_connect, .socketpair = sock_no_socketpair, .accept = vsock_accept, .getname = vsock_getname, @@ -2014,10 +2018,10 @@ static const struct proto_ops vsock_stream_ops = { .ioctl = sock_no_ioctl, .listen = vsock_listen, .shutdown = vsock_shutdown, - .setsockopt = vsock_stream_setsockopt, - .getsockopt = vsock_stream_getsockopt, - .sendmsg = vsock_stream_sendmsg, - .recvmsg = vsock_stream_recvmsg, + .setsockopt = vsock_connectible_setsockopt, + .getsockopt = vsock_connectible_getsockopt, + .sendmsg = vsock_connectible_sendmsg, + .recvmsg = vsock_connectible_recvmsg, .mmap = sock_no_mmap, .sendpage = sock_no_sendpage, }; From patchwork Tue Mar 23 13:09:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157751 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, 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 83455C433E2 for ; Tue, 23 Mar 2021 13:10:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4A658619C3 for ; Tue, 23 Mar 2021 13:10:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231459AbhCWNJp (ORCPT ); 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Tue, 23 Mar 2021 16:09:29 +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 15.1.2176.2; Tue, 23 Mar 2021 16:09:28 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Norbert Slusarek , Andra Paraschiv , Colin Ian King , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 02/22] af_vsock: separate wait data loop Date: Tue, 23 Mar 2021 16:09:13 +0300 Message-ID: <20210323130916.2459756-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.129] X-ClientProxiedBy: hqmailmbx1.avp.ru (10.64.67.241) 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This moves wait loop for data to dedicated function, because later it will be used by SEQPACKET data receive loop. While moving the code around, let's update an old comment. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- net/vmw_vsock/af_vsock.c | 156 +++++++++++++++++++++------------------ 1 file changed, 84 insertions(+), 72 deletions(-) diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 656370e11707..421c0303b26f 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1832,6 +1832,69 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, return err; } +static int vsock_wait_data(struct sock *sk, struct wait_queue_entry *wait, + long timeout, + struct vsock_transport_recv_notify_data *recv_data, + size_t target) +{ + const struct vsock_transport *transport; + struct vsock_sock *vsk; + s64 data; + int err; + + vsk = vsock_sk(sk); + err = 0; + transport = vsk->transport; + + while ((data = vsock_stream_has_data(vsk)) == 0) { + prepare_to_wait(sk_sleep(sk), wait, TASK_INTERRUPTIBLE); + + if (sk->sk_err != 0 || + (sk->sk_shutdown & RCV_SHUTDOWN) || + (vsk->peer_shutdown & SEND_SHUTDOWN)) { + break; + } + + /* Don't wait for non-blocking sockets. */ + if (timeout == 0) { + err = -EAGAIN; + break; + } + + if (recv_data) { + err = transport->notify_recv_pre_block(vsk, target, recv_data); + if (err < 0) + break; + } + + release_sock(sk); + timeout = schedule_timeout(timeout); + lock_sock(sk); + + if (signal_pending(current)) { + err = sock_intr_errno(timeout); + break; + } else if (timeout == 0) { + err = -EAGAIN; + break; + } + } + + finish_wait(sk_sleep(sk), wait); + + if (err) + return err; + + /* Internal transport error when checking for available + * data. XXX This should be changed to a connection + * reset in a later change. + */ + if (data < 0) + return -ENOMEM; + + return data; +} + static int vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, int flags) @@ -1911,85 +1974,34 @@ vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, while (1) { - s64 ready; + ssize_t read; - prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); - ready = vsock_stream_has_data(vsk); + err = vsock_wait_data(sk, &wait, timeout, &recv_data, target); + if (err <= 0) + break; - if (ready == 0) { - if (sk->sk_err != 0 || - (sk->sk_shutdown & RCV_SHUTDOWN) || - (vsk->peer_shutdown & SEND_SHUTDOWN)) { - finish_wait(sk_sleep(sk), &wait); - break; - } - /* Don't wait for non-blocking sockets. */ - if (timeout == 0) { - err = -EAGAIN; - finish_wait(sk_sleep(sk), &wait); - break; - } - - err = transport->notify_recv_pre_block( - vsk, target, &recv_data); - if (err < 0) { - finish_wait(sk_sleep(sk), &wait); - break; - } - release_sock(sk); - timeout = schedule_timeout(timeout); - lock_sock(sk); - - if (signal_pending(current)) { - err = sock_intr_errno(timeout); - finish_wait(sk_sleep(sk), &wait); - break; - } else if (timeout == 0) { - err = -EAGAIN; - finish_wait(sk_sleep(sk), &wait); - break; - } - } else { - ssize_t read; - - finish_wait(sk_sleep(sk), &wait); - - if (ready < 0) { - /* Invalid queue pair content. XXX This should - * be changed to a connection reset in a later - * change. - */ - - err = -ENOMEM; - goto out; - } - - err = transport->notify_recv_pre_dequeue( - vsk, target, &recv_data); - if (err < 0) - break; + err = transport->notify_recv_pre_dequeue(vsk, target, + &recv_data); + if (err < 0) + break; - read = transport->stream_dequeue( - vsk, msg, - len - copied, flags); - if (read < 0) { - err = -ENOMEM; - break; - } + read = transport->stream_dequeue(vsk, msg, len - copied, flags); + if (read < 0) { + err = -ENOMEM; + break; + } - copied += read; + copied += read; - err = transport->notify_recv_post_dequeue( - vsk, target, read, - !(flags & MSG_PEEK), &recv_data); - if (err < 0) - goto out; + err = transport->notify_recv_post_dequeue(vsk, target, read, + !(flags & MSG_PEEK), &recv_data); + if (err < 0) + goto out; - if (read >= target || flags & MSG_PEEK) - break; + if (read >= target || flags & MSG_PEEK) + break; - target -= read; - } + target -= read; } if (sk->sk_err) From patchwork Tue Mar 23 13:09:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157753 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, 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 9E9ECC433E0 for ; Tue, 23 Mar 2021 13:10:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 708B761994 for ; Tue, 23 Mar 2021 13:10:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231461AbhCWNKJ (ORCPT ); Tue, 23 Mar 2021 09:10:09 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:46663 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231465AbhCWNJv (ORCPT ); Tue, 23 Mar 2021 09:09:51 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id 6909C521BA4; Tue, 23 Mar 2021 16:09:47 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616504987; bh=5Hj3xSyLgDH/wqu+Ht0DuZ/v9yTA8w3TJ8UBLAOd6Uk=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=aWxO0XhRjXsRryH35rrKF+Ga2JM9tuxgjPYKXyec1tK8YBB3W9wZLH6CVLjfHxNNk aQzVdn7co+DXnjpOrHcs11/0zYFPP/KLr50nIbeauA4Y4caF+cojXnF1TeksvXuvkk eQZ3bTboU9FQeqXrqh1msCnlV2fZEHu6R8Ux4ZLDTwqNcraHirxlAi1bO9ij/tKh0u hcfXyTo14uv+BgnBPdNLduDAkMRuIDKMWeVAViHuFcq9dE3s5MSL6e6ZnS7TI8Ju58 WzThu+y31s0yAo24ovW+ZizMcnbR9/xSF8ntTaylwTgLFKzFmzxqoz51WUHbuefkDy TdlCWO6Es5cFw== 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 1F241521E1F; Tue, 23 Mar 2021 16:09:47 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.64.121) 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 15.1.2176.2; Tue, 23 Mar 2021 16:09:46 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Norbert Slusarek , Colin Ian King , Andra Paraschiv , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 03/22] af_vsock: separate receive data loop Date: Tue, 23 Mar 2021 16:09:36 +0300 Message-ID: <20210323130939.2459901-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.64.121] 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: 5.9.20, Database issued on: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Move STREAM specific data receive logic to '__vsock_stream_recvmsg()' dedicated function, while checks, that will be same for both STREAM and SEQPACKET sockets, stays in 'vsock_connectible_recvmsg()' shared functions. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- net/vmw_vsock/af_vsock.c | 116 ++++++++++++++++++++++----------------- 1 file changed, 67 insertions(+), 49 deletions(-) diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 421c0303b26f..0bc661e54262 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1895,65 +1895,22 @@ static int vsock_wait_data(struct sock *sk, struct wait_queue_entry *wait, return data; } -static int -vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, - int flags) +static int __vsock_stream_recvmsg(struct sock *sk, struct msghdr *msg, + size_t len, int flags) { - struct sock *sk; - struct vsock_sock *vsk; + struct vsock_transport_recv_notify_data recv_data; const struct vsock_transport *transport; - int err; - size_t target; + struct vsock_sock *vsk; ssize_t copied; + size_t target; long timeout; - struct vsock_transport_recv_notify_data recv_data; + int err; DEFINE_WAIT(wait); - sk = sock->sk; vsk = vsock_sk(sk); - err = 0; - - lock_sock(sk); - transport = vsk->transport; - if (!transport || sk->sk_state != TCP_ESTABLISHED) { - /* Recvmsg is supposed to return 0 if a peer performs an - * orderly shutdown. Differentiate between that case and when a - * peer has not connected or a local shutdown occured with the - * SOCK_DONE flag. - */ - if (sock_flag(sk, SOCK_DONE)) - err = 0; - else - err = -ENOTCONN; - - goto out; - } - - if (flags & MSG_OOB) { - err = -EOPNOTSUPP; - goto out; - } - - /* We don't check peer_shutdown flag here since peer may actually shut - * down, but there can be data in the queue that a local socket can - * receive. - */ - if (sk->sk_shutdown & RCV_SHUTDOWN) { - err = 0; - goto out; - } - - /* It is valid on Linux to pass in a zero-length receive buffer. This - * is not an error. We may as well bail out now. - */ - if (!len) { - err = 0; - goto out; - } - /* We must not copy less than target bytes into the user's buffer * before returning successfully, so we wait for the consume queue to * have that much data to consume before dequeueing. Note that this @@ -2012,6 +1969,67 @@ vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, if (copied > 0) err = copied; +out: + return err; +} + +static int +vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, + int flags) +{ + struct sock *sk; + struct vsock_sock *vsk; + const struct vsock_transport *transport; + int err; + + DEFINE_WAIT(wait); + + sk = sock->sk; + vsk = vsock_sk(sk); + err = 0; + + lock_sock(sk); + + transport = vsk->transport; + + if (!transport || sk->sk_state != TCP_ESTABLISHED) { + /* Recvmsg is supposed to return 0 if a peer performs an + * orderly shutdown. Differentiate between that case and when a + * peer has not connected or a local shutdown occurred with the + * SOCK_DONE flag. + */ + if (sock_flag(sk, SOCK_DONE)) + err = 0; + else + err = -ENOTCONN; + + goto out; + } + + if (flags & MSG_OOB) { + err = -EOPNOTSUPP; + goto out; + } + + /* We don't check peer_shutdown flag here since peer may actually shut + * down, but there can be data in the queue that a local socket can + * receive. + */ + if (sk->sk_shutdown & RCV_SHUTDOWN) { + err = 0; + goto out; + } + + /* It is valid on Linux to pass in a zero-length receive buffer. This + * is not an error. We may as well bail out now. + */ + if (!len) { + err = 0; + goto out; + } + + err = __vsock_stream_recvmsg(sk, msg, len, flags); + out: release_sock(sk); return err; From patchwork Tue Mar 23 13:10:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157755 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, 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 3A94CC433DB for ; Tue, 23 Mar 2021 13:11:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D5F45619B9 for ; Tue, 23 Mar 2021 13:11:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231409AbhCWNKn (ORCPT ); Tue, 23 Mar 2021 09:10:43 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:46936 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231264AbhCWNKU (ORCPT ); Tue, 23 Mar 2021 09:10:20 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id A0FCB5216D2; Tue, 23 Mar 2021 16:10:18 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505018; bh=/tbCs4TAsfEhIIBiHQx6WLW7CwTkzQ0Z/qTyWxJ0Cx8=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=lq5UJTMk7Fw0csRH9QNtynBY20cyy/JSbfHHd6PiEeJV53Ce923AqSc9h04aFLCF0 SAqKCL/3rL6LTIBrv6bMbrXEVaqR/OYYeKrMKujH7BCJOI4JmmIJnCeOfA3oarwCES 69gJO0ShZah5H3aLf08otPCYBDmnhbRSfBb77BQkwLkUCK7ZNLCOectxaPuCaJnDBG 8Rxuackbpo3BiMa3tnnnNmIzMpQj7imdAcBfB6Dt1OtfNE2q2DdeJhcRL+MU6Pdbaj yblYDQ2rZtSxr+KGUqsc0L1gFrk8mK6TxdklRHu+ZWe19Y0j0sqtB2BFjglWkPwv50 AeOxTx9BigGAA== 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 471825216F0; Tue, 23 Mar 2021 16:10:18 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.68.128) 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 15.1.2176.2; Tue, 23 Mar 2021 16:10:17 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Norbert Slusarek , Colin Ian King , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 04/22] af_vsock: implement SEQPACKET receive loop Date: Tue, 23 Mar 2021 16:10:03 +0300 Message-ID: <20210323131006.2460058-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.128] 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: 5.9.20, Database issued on: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: kaspersky.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds receive loop for SEQPACKET. It looks like receive loop for STREAM, but there is a little bit difference: 1) It doesn't call notify callbacks. 2) It doesn't care about 'SO_SNDLOWAT' and 'SO_RCVLOWAT' values, because there is no sense for these values in SEQPACKET case. 3) It waits until whole record is received or error is found during receiving. 4) It processes and sets 'MSG_TRUNC' flag. So to avoid extra conditions for two types of socket inside one loop, two independent functions were created. Signed-off-by: Arseny Krasnov --- v6 -> v7: 'seqpacket_get_len' callback now removed, length of message is returned by 'seqpacket_dequeue' callback. include/net/af_vsock.h | 4 ++ net/vmw_vsock/af_vsock.c | 88 +++++++++++++++++++++++++++++++++++++++- 2 files changed, 91 insertions(+), 1 deletion(-) diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index b1c717286993..74ac8a4c4168 100644 --- a/include/net/af_vsock.h +++ b/include/net/af_vsock.h @@ -135,6 +135,10 @@ struct vsock_transport { bool (*stream_is_active)(struct vsock_sock *); bool (*stream_allow)(u32 cid, u32 port); + /* SEQ_PACKET. */ + int (*seqpacket_dequeue)(struct vsock_sock *vsk, struct msghdr *msg, + int flags, bool *msg_ready, size_t *record_len); + /* Notification. */ int (*notify_poll_in)(struct vsock_sock *, size_t, bool *); int (*notify_poll_out)(struct vsock_sock *, size_t, bool *); diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 0bc661e54262..fa0c37f97330 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1973,6 +1973,89 @@ static int __vsock_stream_recvmsg(struct sock *sk, struct msghdr *msg, return err; } +static int __vsock_seqpacket_recvmsg(struct sock *sk, struct msghdr *msg, + size_t len, int flags) +{ + const struct vsock_transport *transport; + const struct iovec *orig_iov; + unsigned long orig_nr_segs; + bool msg_ready; + struct vsock_sock *vsk; + size_t record_len; + long timeout; + int err = 0; + DEFINE_WAIT(wait); + + vsk = vsock_sk(sk); + transport = vsk->transport; + + timeout = sock_rcvtimeo(sk, flags & MSG_DONTWAIT); + orig_nr_segs = msg->msg_iter.nr_segs; + orig_iov = msg->msg_iter.iov; + msg_ready = false; + record_len = 0; + + while (1) { + err = vsock_wait_data(sk, &wait, timeout, NULL, 0); + + if (err <= 0) { + /* In case of any loop break(timeout, signal + * interrupt or shutdown), we report user that + * nothing was copied. + */ + err = 0; + break; + } + + err = transport->seqpacket_dequeue(vsk, msg, flags, &msg_ready, &record_len); + + if (err < 0) { + if (err == -EAGAIN) { + iov_iter_init(&msg->msg_iter, READ, + orig_iov, orig_nr_segs, + len); + /* Clear 'MSG_EOR' here, because dequeue + * callback above set it again if it was + * set by sender. This 'MSG_EOR' is from + * dropped record. + */ + msg->msg_flags &= ~MSG_EOR; + record_len = 0; + continue; + } + + err = -ENOMEM; + break; + } + + if (msg_ready) + break; + } + + if (sk->sk_err) + err = -sk->sk_err; + else if (sk->sk_shutdown & RCV_SHUTDOWN) + err = 0; + + if (msg_ready) { + /* User sets MSG_TRUNC, so return real length of + * packet. + */ + if (flags & MSG_TRUNC) + err = record_len; + else + err = len - msg->msg_iter.count; + + /* Always set MSG_TRUNC if real length of packet is + * bigger than user's buffer. + */ + if (record_len > len) + msg->msg_flags |= MSG_TRUNC; + } + + return err; +} + static int vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, int flags) @@ -2028,7 +2111,10 @@ vsock_connectible_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, goto out; } - err = __vsock_stream_recvmsg(sk, msg, len, flags); + if (sk->sk_type == SOCK_STREAM) + err = __vsock_stream_recvmsg(sk, msg, len, flags); + else + err = __vsock_seqpacket_recvmsg(sk, msg, len, flags); out: release_sock(sk); From patchwork Tue Mar 23 13:10:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157757 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, 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 8D60AC433E2 for ; Tue, 23 Mar 2021 13:11:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 52AD9619C0 for ; Tue, 23 Mar 2021 13:11:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231531AbhCWNKs (ORCPT ); Tue, 23 Mar 2021 09:10:48 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:47085 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231569AbhCWNKh (ORCPT ); Tue, 23 Mar 2021 09:10:37 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id 9E5A2521244; Tue, 23 Mar 2021 16:10:34 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505034; bh=G/SQfMTYxcXZHgmRt90aeYj0Ecb+uFfrAcgJZrHNEZk=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=tZILYMYBnVMoslN4yeidP7cOlYDPUz2m/LsMgdZ3d5YZxtvgs/O3EOJuYRT4IrmQQ q/iT48IVCUGcIn5vsLW4gnTVMVSoWWvLAPrKL/yTX2l4jUWi7eNB8myDwuXsulZmDT pOrPDbUswFgyyjTcibk4HYdfCzoJBONdm+taJZloqjqZasNCWm7nK4rvKmTJ9iNH68 d9E+Mzyd0cKIBaO42lsXN4C60flE1cgOhROGPY3vwjBymb5Xgy3kqlXHkxiRpQfjEG +dA9HgLu95wwtmLhd837DGkG8RnngJt1Vy9///jRZjSWq0Y+FkT/Y2y/+vybFLluji XZklBtedpbiyg== 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 4E5B0521220; Tue, 23 Mar 2021 16:10:34 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.64.121) 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 15.1.2176.2; Tue, 23 Mar 2021 16:10:33 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Colin Ian King , Andra Paraschiv , Norbert Slusarek , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 05/22] af_vsock: separate wait space loop Date: Tue, 23 Mar 2021 16:10:23 +0300 Message-ID: <20210323131026.2460194-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.64.121] 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This moves loop that waits for space on send to separate function, because it will be used for SEQ_BEGIN/SEQ_END sending before and after data transmission. Waiting for SEQ_BEGIN/SEQ_END is needed because such packets carries SEQPACKET header that couldn't be fragmented by credit mechanism, so to avoid it, sender waits until enough space will be ready. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- include/net/af_vsock.h | 2 + net/vmw_vsock/af_vsock.c | 99 +++++++++++++++++++++++++--------------- 2 files changed, 63 insertions(+), 38 deletions(-) diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index 74ac8a4c4168..7232f6c42a36 100644 --- a/include/net/af_vsock.h +++ b/include/net/af_vsock.h @@ -204,6 +204,8 @@ void vsock_remove_sock(struct vsock_sock *vsk); void vsock_for_each_connected_socket(void (*fn)(struct sock *sk)); int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk); bool vsock_find_cid(unsigned int cid); +int vsock_wait_space(struct sock *sk, size_t space, int flags, + struct vsock_transport_send_notify_data *send_data); /**** TAP ****/ diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index fa0c37f97330..617ffe42693d 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1692,6 +1692,65 @@ static int vsock_connectible_getsockopt(struct socket *sock, return 0; } +int vsock_wait_space(struct sock *sk, size_t space, int flags, + struct vsock_transport_send_notify_data *send_data) +{ + const struct vsock_transport *transport; + struct vsock_sock *vsk; + long timeout; + int err; + + DEFINE_WAIT_FUNC(wait, woken_wake_function); + + vsk = vsock_sk(sk); + transport = vsk->transport; + timeout = sock_sndtimeo(sk, flags & MSG_DONTWAIT); + err = 0; + + add_wait_queue(sk_sleep(sk), &wait); + + while (vsock_stream_has_space(vsk) < space && + sk->sk_err == 0 && + !(sk->sk_shutdown & SEND_SHUTDOWN) && + !(vsk->peer_shutdown & RCV_SHUTDOWN)) { + + /* Don't wait for non-blocking sockets. */ + if (timeout == 0) { + err = -EAGAIN; + goto out_err; + } + + if (send_data) { + err = transport->notify_send_pre_block(vsk, send_data); + if (err < 0) + goto out_err; + } + + release_sock(sk); + timeout = wait_woken(&wait, TASK_INTERRUPTIBLE, timeout); + lock_sock(sk); + if (signal_pending(current)) { + err = sock_intr_errno(timeout); + goto out_err; + } else if (timeout == 0) { + err = -EAGAIN; + goto out_err; + } + } + + if (sk->sk_err) { + err = -sk->sk_err; + } else if ((sk->sk_shutdown & SEND_SHUTDOWN) || + (vsk->peer_shutdown & RCV_SHUTDOWN)) { + err = -EPIPE; + } + +out_err: + remove_wait_queue(sk_sleep(sk), &wait); + return err; +} +EXPORT_SYMBOL_GPL(vsock_wait_space); + static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) { @@ -1699,10 +1758,8 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, struct vsock_sock *vsk; const struct vsock_transport *transport; ssize_t total_written; - long timeout; int err; struct vsock_transport_send_notify_data send_data; - DEFINE_WAIT_FUNC(wait, woken_wake_function); sk = sock->sk; vsk = vsock_sk(sk); @@ -1740,9 +1797,6 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, goto out; } - /* Wait for room in the produce queue to enqueue our user's data. */ - timeout = sock_sndtimeo(sk, msg->msg_flags & MSG_DONTWAIT); - err = transport->notify_send_init(vsk, &send_data); if (err < 0) goto out; @@ -1750,39 +1804,8 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, while (total_written < len) { ssize_t written; - add_wait_queue(sk_sleep(sk), &wait); - while (vsock_stream_has_space(vsk) == 0 && - sk->sk_err == 0 && - !(sk->sk_shutdown & SEND_SHUTDOWN) && - !(vsk->peer_shutdown & RCV_SHUTDOWN)) { - - /* Don't wait for non-blocking sockets. */ - if (timeout == 0) { - err = -EAGAIN; - remove_wait_queue(sk_sleep(sk), &wait); - goto out_err; - } - - err = transport->notify_send_pre_block(vsk, &send_data); - if (err < 0) { - remove_wait_queue(sk_sleep(sk), &wait); - goto out_err; - } - - release_sock(sk); - timeout = wait_woken(&wait, TASK_INTERRUPTIBLE, timeout); - lock_sock(sk); - if (signal_pending(current)) { - err = sock_intr_errno(timeout); - remove_wait_queue(sk_sleep(sk), &wait); - goto out_err; - } else if (timeout == 0) { - err = -EAGAIN; - remove_wait_queue(sk_sleep(sk), &wait); - goto out_err; - } - } - remove_wait_queue(sk_sleep(sk), &wait); + if (vsock_wait_space(sk, 1, msg->msg_flags, &send_data)) + goto out_err; /* These checks occur both as part of and after the loop * conditional since we need to check before and after From patchwork Tue Mar 23 13:10:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157759 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, 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 2473BC433DB for ; Tue, 23 Mar 2021 13:11:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D604F619C7 for ; 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Tue, 23 Mar 2021 16:10:57 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.68.128) 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 15.1.2176.2; Tue, 23 Mar 2021 16:10:56 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Colin Ian King , Norbert Slusarek , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 06/22] af_vsock: implement send logic for SEQPACKET Date: Tue, 23 Mar 2021 16:10:42 +0300 Message-ID: <20210323131045.2460319-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.128] X-ClientProxiedBy: hqmailmbx1.avp.ru (10.64.67.241) 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: kaspersky.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds some logic to current stream enqueue function for SEQPACKET support: 1) Use transport's seqpacket enqueue callback. 2) Return value from enqueue function is whole record length or error for SOCK_SEQPACKET. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- v6 -> v7: 'seqpacket_enqueue' callback interface changed, 'flags' argument was removed, because it was 'msg_flags' field of 'msg' argument which is already exists. include/net/af_vsock.h | 2 ++ net/vmw_vsock/af_vsock.c | 21 +++++++++++++++------ 2 files changed, 17 insertions(+), 6 deletions(-) diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index 7232f6c42a36..b7063820d0bc 100644 --- a/include/net/af_vsock.h +++ b/include/net/af_vsock.h @@ -138,6 +138,8 @@ struct vsock_transport { /* SEQ_PACKET. */ int (*seqpacket_dequeue)(struct vsock_sock *vsk, struct msghdr *msg, int flags, bool *msg_ready, size_t *record_len); + int (*seqpacket_enqueue)(struct vsock_sock *vsk, struct msghdr *msg, + size_t len); /* Notification. */ int (*notify_poll_in)(struct vsock_sock *, size_t, bool *); diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 617ffe42693d..a98e5daa06b7 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1830,9 +1830,13 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, * responsibility to check how many bytes we were able to send. */ - written = transport->stream_enqueue( - vsk, msg, - len - total_written); + if (sk->sk_type == SOCK_SEQPACKET) { + written = transport->seqpacket_enqueue(vsk, + msg, len - total_written); + } else { + written = transport->stream_enqueue(vsk, + msg, len - total_written); + } if (written < 0) { err = -ENOMEM; goto out_err; @@ -1844,12 +1848,17 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, vsk, written, &send_data); if (err < 0) goto out_err; - } 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; From patchwork Tue Mar 23 13:11:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157785 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, 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 0D284C433DB for ; Tue, 23 Mar 2021 13:12:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C1893619BA for ; Tue, 23 Mar 2021 13:12:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231492AbhCWNLr (ORCPT ); Tue, 23 Mar 2021 09:11:47 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:47694 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231586AbhCWNLd (ORCPT ); Tue, 23 Mar 2021 09:11:33 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id E1958521EE1; Tue, 23 Mar 2021 16:11:23 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505084; bh=ERm28xxzug3GBzayEYp1rd+2/Pjtq6tUtQNVqdx3d4c=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=2BY/qtZmJBWntH2pcPG3ed0tN6TDOSdDj6QDNQ2/nG3KBlGEvHW6dA2g7UQnzP/mQ m7dAtaqbwdcFgxcsLhHwIVaVWXxWSw7+AkNMjdtRaSQdsKVXZaQ5Ck+tvfm10Pj468 Nyd2NImtRyiAzloXnCb2t04S0BrQgUtpRzb12fcqQIq/oIGh+u7B1rP8IpXmR8C46m zzPm50R7vduVXaDHQWBIk8dnWbeqfmJ3qU9EKNa3ffO3sdghvHxP2RfF5aKnttr6VO qFWCW5c6cWH4A7LGl/ZRPV6n6SDP30hyJjZfsukOWqrIW7Uyt6JIoRHQsWhoFU9e/i zOBBYHfhocukw== 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 70C13521EAF; Tue, 23 Mar 2021 16:11:23 +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 15.1.2176.2; Tue, 23 Mar 2021 16:11:22 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Colin Ian King , Norbert Slusarek , Andra Paraschiv , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 07/22] af_vsock: rest of SEQPACKET support Date: Tue, 23 Mar 2021 16:11:05 +0300 Message-ID: <20210323131108.2460465-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.129] 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This does rest of SOCK_SEQPACKET support: 1) Adds socket ops for SEQPACKET type. 2) Allows to create socket with SEQPACKET type. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- include/net/af_vsock.h | 1 + net/vmw_vsock/af_vsock.c | 36 +++++++++++++++++++++++++++++++++++- 2 files changed, 36 insertions(+), 1 deletion(-) diff --git a/include/net/af_vsock.h b/include/net/af_vsock.h index b7063820d0bc..6c88ba0df588 100644 --- a/include/net/af_vsock.h +++ b/include/net/af_vsock.h @@ -140,6 +140,7 @@ struct vsock_transport { int flags, bool *msg_ready, size_t *record_len); int (*seqpacket_enqueue)(struct vsock_sock *vsk, struct msghdr *msg, size_t len); + bool (*seqpacket_allow)(void); /* Notification. */ int (*notify_poll_in)(struct vsock_sock *, size_t, bool *); diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index a98e5daa06b7..802afe253781 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -452,6 +452,7 @@ int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk) new_transport = transport_dgram; break; case SOCK_STREAM: + case SOCK_SEQPACKET: if (vsock_use_local_transport(remote_cid)) new_transport = transport_local; else if (remote_cid <= VMADDR_CID_HOST || !transport_h2g || @@ -484,6 +485,14 @@ int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk) if (!new_transport || !try_module_get(new_transport->module)) return -ENODEV; + if (sk->sk_type == SOCK_SEQPACKET) { + if (!new_transport->seqpacket_allow || + !new_transport->seqpacket_allow()) { + module_put(new_transport->module); + return -ESOCKTNOSUPPORT; + } + } + ret = new_transport->init(vsk, psk); if (ret) { module_put(new_transport->module); @@ -684,6 +693,7 @@ static int __vsock_bind(struct sock *sk, struct sockaddr_vm *addr) switch (sk->sk_socket->type) { case SOCK_STREAM: + case SOCK_SEQPACKET: spin_lock_bh(&vsock_table_lock); retval = __vsock_bind_connectible(vsk, addr); spin_unlock_bh(&vsock_table_lock); @@ -769,7 +779,7 @@ static struct sock *__vsock_create(struct net *net, static bool sock_type_connectible(u16 type) { - return type == SOCK_STREAM; + return (type == SOCK_STREAM) || (type == SOCK_SEQPACKET); } static void __vsock_release(struct sock *sk, int level) @@ -2174,6 +2184,27 @@ static const struct proto_ops vsock_stream_ops = { .sendpage = sock_no_sendpage, }; +static const struct proto_ops vsock_seqpacket_ops = { + .family = PF_VSOCK, + .owner = THIS_MODULE, + .release = vsock_release, + .bind = vsock_bind, + .connect = vsock_connect, + .socketpair = sock_no_socketpair, + .accept = vsock_accept, + .getname = vsock_getname, + .poll = vsock_poll, + .ioctl = sock_no_ioctl, + .listen = vsock_listen, + .shutdown = vsock_shutdown, + .setsockopt = vsock_connectible_setsockopt, + .getsockopt = vsock_connectible_getsockopt, + .sendmsg = vsock_connectible_sendmsg, + .recvmsg = vsock_connectible_recvmsg, + .mmap = sock_no_mmap, + .sendpage = sock_no_sendpage, +}; + static int vsock_create(struct net *net, struct socket *sock, int protocol, int kern) { @@ -2194,6 +2225,9 @@ static int vsock_create(struct net *net, struct socket *sock, case SOCK_STREAM: sock->ops = &vsock_stream_ops; break; + case SOCK_SEQPACKET: + sock->ops = &vsock_seqpacket_ops; + break; default: return -ESOCKTNOSUPPORT; } From patchwork Tue Mar 23 13:11:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157787 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, 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 9639CC433C1 for ; Tue, 23 Mar 2021 13:12:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 58C05619B9 for ; Tue, 23 Mar 2021 13:12:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231539AbhCWNMT (ORCPT ); Tue, 23 Mar 2021 09:12:19 -0400 Received: from mx12.kaspersky-labs.com ([91.103.66.155]:30238 "EHLO mx12.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231587AbhCWNLy (ORCPT ); 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Tue, 23 Mar 2021 16:11:50 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.64.121) 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 15.1.2176.2; Tue, 23 Mar 2021 16:11:49 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Norbert Slusarek , Colin Ian King , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 08/22] af_vsock: update comments for stream sockets Date: Tue, 23 Mar 2021 16:11:32 +0300 Message-ID: <20210323131135.2460625-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.64.121] 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This replaces 'stream' to 'connection oriented' in comments as SEQPACKET is also connection oriented. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- net/vmw_vsock/af_vsock.c | 31 +++++++++++++++++-------------- 1 file changed, 17 insertions(+), 14 deletions(-) diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 802afe253781..6a7652c75d3d 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -415,8 +415,8 @@ static void vsock_deassign_transport(struct vsock_sock *vsk) /* Assign a transport to a socket and call the .init transport callback. * - * Note: for stream socket this must be called when vsk->remote_addr is set - * (e.g. during the connect() or when a connection request on a listener + * Note: for connection oriented socket this must be called when vsk->remote_addr + * is set (e.g. during the connect() or when a connection request on a listener * socket is received). * The vsk->remote_addr is used to decide which transport to use: * - remote CID == VMADDR_CID_LOCAL or g2h->local_cid or VMADDR_CID_HOST if @@ -470,10 +470,10 @@ int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk) return 0; /* transport->release() must be called with sock lock acquired. - * This path can only be taken during vsock_stream_connect(), - * where we have already held the sock lock. - * In the other cases, this function is called on a new socket - * which is not assigned to any transport. + * This path can only be taken during vsock_connect(), where we + * have already held the sock lock. In the other cases, this + * function is called on a new socket which is not assigned to + * any transport. */ vsk->transport->release(vsk); vsock_deassign_transport(vsk); @@ -658,9 +658,10 @@ static int __vsock_bind_connectible(struct vsock_sock *vsk, vsock_addr_init(&vsk->local_addr, new_addr.svm_cid, new_addr.svm_port); - /* Remove stream sockets from the unbound list and add them to the hash - * table for easy lookup by its address. The unbound list is simply an - * extra entry at the end of the hash table, a trick used by AF_UNIX. + /* Remove connection oriented sockets from the unbound list and add them + * to the hash table for easy lookup by its address. The unbound list + * is simply an extra entry at the end of the hash table, a trick used + * by AF_UNIX. */ __vsock_remove_bound(vsk); __vsock_insert_bound(vsock_bound_sockets(&vsk->local_addr), vsk); @@ -951,10 +952,10 @@ static int vsock_shutdown(struct socket *sock, int mode) if ((mode & ~SHUTDOWN_MASK) || !mode) return -EINVAL; - /* If this is a STREAM socket and it is not connected then bail out - * immediately. If it is a DGRAM socket then we must first kick the - * socket so that it wakes up from any sleeping calls, for example - * recv(), and then afterwards return the error. + /* If this is a connection oriented socket and it is not connected then + * bail out immediately. If it is a DGRAM socket then we must first + * kick the socket so that it wakes up from any sleeping calls, for + * example recv(), and then afterwards return the error. */ sk = sock->sk; @@ -1783,7 +1784,9 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, transport = vsk->transport; - /* Callers should not provide a destination with stream sockets. */ + /* Callers should not provide a destination with connection oriented + * sockets. + */ if (msg->msg_namelen) { err = sk->sk_state == TCP_ESTABLISHED ? -EISCONN : -EOPNOTSUPP; goto out; From patchwork Tue Mar 23 13:11:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157789 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, 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 49DBBC433E0 for ; Tue, 23 Mar 2021 13:12:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EE0BE61994 for ; Tue, 23 Mar 2021 13:12:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231589AbhCWNMX (ORCPT ); Tue, 23 Mar 2021 09:12:23 -0400 Received: from mx12.kaspersky-labs.com ([91.103.66.155]:30423 "EHLO mx12.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230347AbhCWNMP (ORCPT ); Tue, 23 Mar 2021 09:12:15 -0400 Received: from relay12.kaspersky-labs.com (unknown [127.0.0.10]) by relay12.kaspersky-labs.com (Postfix) with ESMTP id BC63976087; Tue, 23 Mar 2021 16:12:12 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505132; bh=SYZ20NkjdAJ6yvNXHCzpaAcE8wnGZHPDs5NSwqL+FYI=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=thikRjhNRWdzs2binXEaTynW+smyekqFZwn1oikT7oRnD4wKYC0H15YE1gWFqAw4s mKJ967fOnUBe9ZAqcnsPOtR9m4fIKc5rjJQuqKExhtoAsHo1fBlRNEgKls+j8h3knG O6PvB3kM7yE+Spjdz2GQpipU1XzZG9tr0Ku2U5vrLdhP0KsFJoyWTrF2cjXhz+nSmX yYui6y5mbeWr2UlUW8qgS6ifEW4x9gtYvyPmZpfFIQYISPYA5l7L8nvix/ck+plaNN 1sqiN90hmbsyD4z5jp+4zf+1gv8MIczuABEIHMZRhL5R1/2HBJJQwfedLkZTx0t96m CsA7KWPgJfbdQ== 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 mailhub12.kaspersky-labs.com (Postfix) with ESMTPS id 7B67C760AC; Tue, 23 Mar 2021 16:12:12 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.68.128) 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 15.1.2176.2; Tue, 23 Mar 2021 16:12:11 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Norbert Slusarek , Andra Paraschiv , Colin Ian King , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 09/22] virtio/vsock: set packet's type in virtio_transport_send_pkt_info() Date: Tue, 23 Mar 2021 16:11:59 +0300 Message-ID: <20210323131202.2460775-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.128] X-ClientProxiedBy: hqmailmbx1.avp.ru (10.64.67.241) 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This moves passing type of packet from 'info' structure to 'virtio_ transport_send_pkt_info()' function. There is no need to set type of packet which differs from type of socket. Since at current time only stream type is supported, set it directly in 'virtio_transport_send_ pkt_info()', so callers don't need to set it. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- net/vmw_vsock/virtio_transport_common.c | 19 +++++-------------- 1 file changed, 5 insertions(+), 14 deletions(-) diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index e4370b1b7494..f69993d67f89 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -179,6 +179,8 @@ static int virtio_transport_send_pkt_info(struct vsock_sock *vsk, struct virtio_vsock_pkt *pkt; u32 pkt_len = info->pkt_len; + info->type = VIRTIO_VSOCK_TYPE_STREAM; + t_ops = virtio_transport_get_ops(vsk); if (unlikely(!t_ops)) return -EFAULT; @@ -270,12 +272,10 @@ void virtio_transport_put_credit(struct virtio_vsock_sock *vvs, u32 credit) EXPORT_SYMBOL_GPL(virtio_transport_put_credit); static int virtio_transport_send_credit_update(struct vsock_sock *vsk, - int type, struct virtio_vsock_hdr *hdr) { struct virtio_vsock_pkt_info info = { .op = VIRTIO_VSOCK_OP_CREDIT_UPDATE, - .type = type, .vsk = vsk, }; @@ -383,11 +383,8 @@ virtio_transport_stream_do_dequeue(struct vsock_sock *vsk, * messages, we set the limit to a high value. TODO: experiment * with different values. */ - if (free_space < VIRTIO_VSOCK_MAX_PKT_BUF_SIZE) { - virtio_transport_send_credit_update(vsk, - VIRTIO_VSOCK_TYPE_STREAM, - NULL); - } + if (free_space < VIRTIO_VSOCK_MAX_PKT_BUF_SIZE) + virtio_transport_send_credit_update(vsk, NULL); return total; @@ -496,8 +493,7 @@ void virtio_transport_notify_buffer_size(struct vsock_sock *vsk, u64 *val) vvs->buf_alloc = *val; - virtio_transport_send_credit_update(vsk, VIRTIO_VSOCK_TYPE_STREAM, - NULL); + virtio_transport_send_credit_update(vsk, NULL); } EXPORT_SYMBOL_GPL(virtio_transport_notify_buffer_size); @@ -624,7 +620,6 @@ int virtio_transport_connect(struct vsock_sock *vsk) { struct virtio_vsock_pkt_info info = { .op = VIRTIO_VSOCK_OP_REQUEST, - .type = VIRTIO_VSOCK_TYPE_STREAM, .vsk = vsk, }; @@ -636,7 +631,6 @@ int virtio_transport_shutdown(struct vsock_sock *vsk, int mode) { struct virtio_vsock_pkt_info info = { .op = VIRTIO_VSOCK_OP_SHUTDOWN, - .type = VIRTIO_VSOCK_TYPE_STREAM, .flags = (mode & RCV_SHUTDOWN ? VIRTIO_VSOCK_SHUTDOWN_RCV : 0) | (mode & SEND_SHUTDOWN ? @@ -665,7 +659,6 @@ virtio_transport_stream_enqueue(struct vsock_sock *vsk, { struct virtio_vsock_pkt_info info = { .op = VIRTIO_VSOCK_OP_RW, - .type = VIRTIO_VSOCK_TYPE_STREAM, .msg = msg, .pkt_len = len, .vsk = vsk, @@ -688,7 +681,6 @@ static int virtio_transport_reset(struct vsock_sock *vsk, { struct virtio_vsock_pkt_info info = { .op = VIRTIO_VSOCK_OP_RST, - .type = VIRTIO_VSOCK_TYPE_STREAM, .reply = !!pkt, .vsk = vsk, }; @@ -990,7 +982,6 @@ virtio_transport_send_response(struct vsock_sock *vsk, { struct virtio_vsock_pkt_info info = { .op = VIRTIO_VSOCK_OP_RESPONSE, - .type = VIRTIO_VSOCK_TYPE_STREAM, .remote_cid = le64_to_cpu(pkt->hdr.src_cid), .remote_port = le32_to_cpu(pkt->hdr.src_port), .reply = true, From patchwork Tue Mar 23 13:12:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157791 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=-16.2 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, UNWANTED_LANGUAGE_BODY,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 D8AD7C433E0 for ; Tue, 23 Mar 2021 13:13:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 904CB619BD for ; Tue, 23 Mar 2021 13:13:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231362AbhCWNMu (ORCPT ); Tue, 23 Mar 2021 09:12:50 -0400 Received: from mx12.kaspersky-labs.com ([91.103.66.155]:30586 "EHLO mx12.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231628AbhCWNMf (ORCPT ); Tue, 23 Mar 2021 09:12:35 -0400 Received: from relay12.kaspersky-labs.com (unknown [127.0.0.10]) by relay12.kaspersky-labs.com (Postfix) with ESMTP id DAB0875FBC; Tue, 23 Mar 2021 16:12:27 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505148; bh=hS1VyDTANdxSRI309WCg4gsvCflOnzV8XuLScTrV4o0=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=4Vuz5h0RVOKXw34SQR4JlNQ0zmZ4ol1aXSMdWMYGUoXMLbskP+K8LkqE5ALCSQN7K SJ4cX8BbQkvuxUrMXAiz9KbGvVLr+ASY9KZrQ0iS6XtQgMJL1s56xzciR19BdDdiFz kDCdci7R/b95cdxeWHyfDJ4I1WD4itRp4pn/XJDo2kgcRZSPcDLi0WYDkbkCchKKIn QmerNsAAwjF1fHmz43wVFoROFRF6JnwF6HH+CuR8IM32h1vadfVNjXxl1OJRnEuoCO 0qTRfnB75RhjnAudO6r8BeGoEJauWTGTjnKzrETaEnON33pp5MEk6PvPHZS1wrnTpQ zx8u6PIeBIIWg== 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 mailhub12.kaspersky-labs.com (Postfix) with ESMTPS id A7E6D75FB6; Tue, 23 Mar 2021 16:12:27 +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 15.1.2176.2; Tue, 23 Mar 2021 16:12:26 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Colin Ian King , Norbert Slusarek , Andra Paraschiv , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 10/22] virtio/vsock: simplify credit update function API Date: Tue, 23 Mar 2021 16:12:18 +0300 Message-ID: <20210323131221.2460907-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.129] X-ClientProxiedBy: hqmailmbx1.avp.ru (10.64.67.241) 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This function is static and 'hdr' arg was always NULL. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- net/vmw_vsock/virtio_transport_common.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index f69993d67f89..833104b71a1c 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -271,8 +271,7 @@ void virtio_transport_put_credit(struct virtio_vsock_sock *vvs, u32 credit) } EXPORT_SYMBOL_GPL(virtio_transport_put_credit); -static int virtio_transport_send_credit_update(struct vsock_sock *vsk, - struct virtio_vsock_hdr *hdr) +static int virtio_transport_send_credit_update(struct vsock_sock *vsk) { struct virtio_vsock_pkt_info info = { .op = VIRTIO_VSOCK_OP_CREDIT_UPDATE, @@ -384,7 +383,7 @@ virtio_transport_stream_do_dequeue(struct vsock_sock *vsk, * with different values. */ if (free_space < VIRTIO_VSOCK_MAX_PKT_BUF_SIZE) - virtio_transport_send_credit_update(vsk, NULL); + virtio_transport_send_credit_update(vsk); return total; @@ -493,7 +492,7 @@ void virtio_transport_notify_buffer_size(struct vsock_sock *vsk, u64 *val) vvs->buf_alloc = *val; - virtio_transport_send_credit_update(vsk, NULL); + virtio_transport_send_credit_update(vsk); } EXPORT_SYMBOL_GPL(virtio_transport_notify_buffer_size); From patchwork Tue Mar 23 13:12:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157793 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, 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 D41B5C433DB for ; Tue, 23 Mar 2021 13:14:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8380861990 for ; Tue, 23 Mar 2021 13:14:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231579AbhCWNN6 (ORCPT ); Tue, 23 Mar 2021 09:13:58 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:48485 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231596AbhCWNNA (ORCPT ); Tue, 23 Mar 2021 09:13:00 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id DA203521708; Tue, 23 Mar 2021 16:12:50 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505171; bh=twlNLFy/EJAoZnNzRrjDMz/nq9lblgdIz7WvKwJpKBo=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=fBx36fkDzCl5v7fjA3SYcjwUGeOUMeucBiowsi3IQThQ5H/ELkQx+txjcSw5aYQFk ELXXZPTZTd6BR4g2Gddz+qmALQ5L4nltPKinnsejcsC6j4S3gofV1yEOk9uFx0sFoe n3ONtQLoNFKthfT8QGG3NRe/T/0y5Z+miRdZqPo0KxOzoc4IpduaM70dLOCiOY7kvy oV8L9byzB90Wt+AL+56f7I8k3vUxCQMuicMJyMRz6WFpjpQxXh56zwoOXKXyJlfEJO FHJ1bZrF6F9AGClLqAWEheRdI+l7UKG718n1Yg0FMXplS6n3P3LGOQk9ep3lt989LP +i0YaeK4hrszw== 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 8663D5216D2; Tue, 23 Mar 2021 16:12:50 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.68.128) 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 15.1.2176.2; Tue, 23 Mar 2021 16:12:50 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Norbert Slusarek , Colin Ian King , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 11/22] virtio/vsock: dequeue callback for SOCK_SEQPACKET Date: Tue, 23 Mar 2021 16:12:41 +0300 Message-ID: <20210323131244.2461050-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.128] 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds transport callback and it's logic for SEQPACKET dequeue. Callback fetches RW packets from rx queue of socket until whole record is copied(if user's buffer is full, user is not woken up). This is done to not stall sender, because if we wake up user and it leaves syscall, nobody will send credit update for rest of record, and sender will wait for next enter of read syscall at receiver's side. So if user buffer is full, we just send credit update and drop data. If during copy SEQ_BEGIN was found(and not all data was copied), copying is restarted by reset user's iov iterator(previous unfinished data is dropped). Signed-off-by: Arseny Krasnov --- v6 -> v7: 1) 'struct virtio_vsock_seqpacket_state' now renamed to 'struct virtio_vsock_seq_state'. 2) Field 'seqpacket_state' of 'struct virtio_vsock_sock' now renamed to 'seq_state'. 3) Current message length to process('user_read_seq_len') is set to 0 on error or message dequeue completed sucecssfully. include/linux/virtio_vsock.h | 14 +++ include/uapi/linux/virtio_vsock.h | 16 ++++ net/vmw_vsock/virtio_transport_common.c | 121 ++++++++++++++++++++++++ 3 files changed, 151 insertions(+) diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h index dc636b727179..0e3aa395c07c 100644 --- a/include/linux/virtio_vsock.h +++ b/include/linux/virtio_vsock.h @@ -18,6 +18,12 @@ enum { VSOCK_VQ_MAX = 3, }; +struct virtio_vsock_seq_state { + u32 user_read_seq_len; + u32 user_read_copied; + u32 curr_rx_msg_id; +}; + /* Per-socket state (accessed via vsk->trans) */ struct virtio_vsock_sock { struct vsock_sock *vsk; @@ -36,6 +42,8 @@ struct virtio_vsock_sock { u32 rx_bytes; u32 buf_alloc; struct list_head rx_queue; + + struct virtio_vsock_seq_state seq_state; }; struct virtio_vsock_pkt { @@ -80,6 +88,12 @@ virtio_transport_dgram_dequeue(struct vsock_sock *vsk, struct msghdr *msg, size_t len, int flags); +int +virtio_transport_seqpacket_dequeue(struct vsock_sock *vsk, + struct msghdr *msg, + int flags, + bool *msg_ready, + size_t *msg_len); s64 virtio_transport_stream_has_data(struct vsock_sock *vsk); s64 virtio_transport_stream_has_space(struct vsock_sock *vsk); diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h index 1d57ed3d84d2..692f8078cced 100644 --- a/include/uapi/linux/virtio_vsock.h +++ b/include/uapi/linux/virtio_vsock.h @@ -63,8 +63,14 @@ struct virtio_vsock_hdr { __le32 fwd_cnt; } __attribute__((packed)); +struct virtio_vsock_seq_hdr { + __le32 msg_id; + __le32 msg_len; +} __attribute__((packed)); + enum virtio_vsock_type { VIRTIO_VSOCK_TYPE_STREAM = 1, + VIRTIO_VSOCK_TYPE_SEQPACKET = 2, }; enum virtio_vsock_op { @@ -83,6 +89,11 @@ enum virtio_vsock_op { VIRTIO_VSOCK_OP_CREDIT_UPDATE = 6, /* Request the peer to send the credit info to us */ VIRTIO_VSOCK_OP_CREDIT_REQUEST = 7, + + /* Record begin for SOCK_SEQPACKET */ + VIRTIO_VSOCK_OP_SEQ_BEGIN = 8, + /* Record end for SOCK_SEQPACKET */ + VIRTIO_VSOCK_OP_SEQ_END = 9, }; /* VIRTIO_VSOCK_OP_SHUTDOWN flags values */ @@ -91,4 +102,9 @@ enum virtio_vsock_shutdown { VIRTIO_VSOCK_SHUTDOWN_SEND = 2, }; +/* VIRTIO_VSOCK_OP_RW flags values */ +enum virtio_vsock_rw { + VIRTIO_VSOCK_RW_EOR = 1, +}; + #endif /* _UAPI_LINUX_VIRTIO_VSOCK_H */ diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 833104b71a1c..a8f4326e45e8 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -393,6 +393,114 @@ virtio_transport_stream_do_dequeue(struct vsock_sock *vsk, return err; } +static inline void virtio_transport_remove_pkt(struct virtio_vsock_pkt *pkt) +{ + list_del(&pkt->list); + virtio_transport_free_pkt(pkt); +} + +static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk, + struct msghdr *msg, + bool *msg_ready) +{ + struct virtio_vsock_sock *vvs = vsk->trans; + struct virtio_vsock_pkt *pkt; + int err = 0; + size_t user_buf_len = msg->msg_iter.count; + + *msg_ready = false; + spin_lock_bh(&vvs->rx_lock); + + while (!*msg_ready && !list_empty(&vvs->rx_queue) && !err) { + pkt = list_first_entry(&vvs->rx_queue, struct virtio_vsock_pkt, list); + + switch (le16_to_cpu(pkt->hdr.op)) { + case VIRTIO_VSOCK_OP_SEQ_BEGIN: { + /* Unexpected 'SEQ_BEGIN' during record copy: + * Leave receive loop, 'EAGAIN' will restart it from + * outer receive loop, packet is still in queue and + * counters are cleared. So in next loop enter, + * 'SEQ_BEGIN' will be dequeued first. User's iov + * iterator will be reset in outer loop. Also + * send credit update, because some bytes could be + * copied. User will never see unfinished record. + */ + err = -EAGAIN; + break; + } + case VIRTIO_VSOCK_OP_SEQ_END: { + struct virtio_vsock_seq_hdr *seq_hdr; + + seq_hdr = (struct virtio_vsock_seq_hdr *)pkt->buf; + /* First check that whole record is received. */ + + if (vvs->seq_state.user_read_copied != + vvs->seq_state.user_read_seq_len || + le32_to_cpu(seq_hdr->msg_id) != + vvs->seq_state.curr_rx_msg_id) { + /* Tail of current record and head of next missed, + * so this EOR is from next record. Restart receive. + * Current record will be dropped, next headless will + * be dropped on next attempt to get record length. + */ + err = -EAGAIN; + } else { + /* Success. */ + *msg_ready = true; + } + + break; + } + case VIRTIO_VSOCK_OP_RW: { + size_t bytes_to_copy; + size_t pkt_len; + + pkt_len = (size_t)le32_to_cpu(pkt->hdr.len); + bytes_to_copy = min(user_buf_len, pkt_len); + + /* sk_lock is held by caller so no one else can dequeue. + * Unlock rx_lock since memcpy_to_msg() may sleep. + */ + spin_unlock_bh(&vvs->rx_lock); + + if (memcpy_to_msg(msg, pkt->buf, bytes_to_copy)) { + spin_lock_bh(&vvs->rx_lock); + err = -EINVAL; + break; + } + + spin_lock_bh(&vvs->rx_lock); + user_buf_len -= bytes_to_copy; + vvs->seq_state.user_read_copied += pkt_len; + + if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_RW_EOR) + msg->msg_flags |= MSG_EOR; + break; + } + default: + ; + } + + /* For unexpected 'SEQ_BEGIN', keep such packet in queue, + * but drop any other type of packet. + */ + if (le16_to_cpu(pkt->hdr.op) != VIRTIO_VSOCK_OP_SEQ_BEGIN) { + virtio_transport_dec_rx_pkt(vvs, pkt); + virtio_transport_remove_pkt(pkt); + } + } + + /* Reset current record length on error or whole message received. */ + if (*msg_ready || err) + vvs->seq_state.user_read_seq_len = 0; + + spin_unlock_bh(&vvs->rx_lock); + + virtio_transport_send_credit_update(vsk); + + return err; +} + ssize_t virtio_transport_stream_dequeue(struct vsock_sock *vsk, struct msghdr *msg, @@ -405,6 +513,19 @@ virtio_transport_stream_dequeue(struct vsock_sock *vsk, } EXPORT_SYMBOL_GPL(virtio_transport_stream_dequeue); +int +virtio_transport_seqpacket_dequeue(struct vsock_sock *vsk, + struct msghdr *msg, + int flags, bool *msg_ready, + size_t *msg_len) +{ + if (flags & MSG_PEEK) + return -EOPNOTSUPP; + + return virtio_transport_seqpacket_do_dequeue(vsk, msg, msg_ready); +} +EXPORT_SYMBOL_GPL(virtio_transport_seqpacket_dequeue); + int virtio_transport_dgram_dequeue(struct vsock_sock *vsk, struct msghdr *msg, From patchwork Tue Mar 23 13:12:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157795 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, 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 74D96C433E1 for ; Tue, 23 Mar 2021 13:14:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3398A61990 for ; Tue, 23 Mar 2021 13:14:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231651AbhCWNOC (ORCPT ); Tue, 23 Mar 2021 09:14:02 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:48701 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230347AbhCWNNL (ORCPT ); Tue, 23 Mar 2021 09:13:11 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id A447C521154; Tue, 23 Mar 2021 16:13:05 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505185; bh=Sj4HMi5wqo/knBOf/axMpQ9Ft2+J+H77Dm6ahRKzcwQ=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=u+pjX8ZidKjPjs5OisSyl66t3pChzQgFgRUm6qQ9ZiSwhM9JZjsfPkBB6cxBJaMF+ 6LJZIAXA1dSbL9dcrOz2hjBctjClEs4LYdof4KQkw4jw1tkF7TmKnCP07i5vmRNy8J iZ+3oQMnXSIZTr8IYBiapIozNIwIJBHYq4bbomMNaGyBP7dOHN88RAB1iPZqcD4srG 6xqvTdPxZ4eJUTELZUpjwP4FHnRm478q7Qn5Dg043AAyEMarR0bZsa4AzC+OmsvrRG JUGfiD7gfLPunqiXxKuhYz6QYOFJFv5t6Xg/vb5+MD6Rd0atie2jzzwQVMPyMyeYUT USI1gj2mU/T7A== 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 54C5D52110F; Tue, 23 Mar 2021 16:13:05 +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 15.1.2176.2; Tue, 23 Mar 2021 16:13:04 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Colin Ian King , Norbert Slusarek , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 12/22] virtio/vsock: fetch length for SEQPACKET record Date: Tue, 23 Mar 2021 16:12:55 +0300 Message-ID: <20210323131258.2461163-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-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: 5.9.20, Database issued on: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds transport callback which tries to fetch record begin marker from socket's rx queue. It is called from af_vsock.c before reading data packets of record. Signed-off-by: Arseny Krasnov --- v6 -> v7: 1) Now 'virtio_transport_seqpacket_seq_get_len()' returns 0, if rx queue of socket is empty. Else it returns length of current message to handle. 2) If dequeue callback is called, but there is no detected length of message to dequeue, EAGAIN is returned, and outer loop restarts receiving. net/vmw_vsock/virtio_transport_common.c | 61 +++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index a8f4326e45e8..41f05034593e 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -399,6 +399,62 @@ static inline void virtio_transport_remove_pkt(struct virtio_vsock_pkt *pkt) virtio_transport_free_pkt(pkt); } +static size_t virtio_transport_drop_until_seq_begin(struct virtio_vsock_sock *vvs) +{ + struct virtio_vsock_pkt *pkt, *n; + size_t bytes_dropped = 0; + + list_for_each_entry_safe(pkt, n, &vvs->rx_queue, list) { + if (le16_to_cpu(pkt->hdr.op) == VIRTIO_VSOCK_OP_SEQ_BEGIN) + break; + + bytes_dropped += le32_to_cpu(pkt->hdr.len); + virtio_transport_dec_rx_pkt(vvs, pkt); + virtio_transport_remove_pkt(pkt); + } + + return bytes_dropped; +} + +static size_t virtio_transport_seqpacket_seq_get_len(struct vsock_sock *vsk) +{ + struct virtio_vsock_seq_hdr *seq_hdr; + struct virtio_vsock_sock *vvs; + struct virtio_vsock_pkt *pkt; + size_t bytes_dropped = 0; + + vvs = vsk->trans; + + spin_lock_bh(&vvs->rx_lock); + + /* Have some record to process, return it's length. */ + if (vvs->seq_state.user_read_seq_len) + goto out; + + /* Fetch all orphaned 'RW' packets and send credit update. */ + bytes_dropped = virtio_transport_drop_until_seq_begin(vvs); + + if (list_empty(&vvs->rx_queue)) + goto out; + + pkt = list_first_entry(&vvs->rx_queue, struct virtio_vsock_pkt, list); + + vvs->seq_state.user_read_copied = 0; + + seq_hdr = (struct virtio_vsock_seq_hdr *)pkt->buf; + vvs->seq_state.user_read_seq_len = le32_to_cpu(seq_hdr->msg_len); + vvs->seq_state.curr_rx_msg_id = le32_to_cpu(seq_hdr->msg_id); + virtio_transport_dec_rx_pkt(vvs, pkt); + virtio_transport_remove_pkt(pkt); +out: + spin_unlock_bh(&vvs->rx_lock); + + if (bytes_dropped) + virtio_transport_send_credit_update(vsk); + + return vvs->seq_state.user_read_seq_len; +} + static int virtio_transport_seqpacket_do_dequeue(struct vsock_sock *vsk, struct msghdr *msg, bool *msg_ready) @@ -522,6 +578,11 @@ virtio_transport_seqpacket_dequeue(struct vsock_sock *vsk, if (flags & MSG_PEEK) return -EOPNOTSUPP; + *msg_len = virtio_transport_seqpacket_seq_get_len(vsk); + + if (*msg_len == 0) + return -EAGAIN; + return virtio_transport_seqpacket_do_dequeue(vsk, msg, msg_ready); } EXPORT_SYMBOL_GPL(virtio_transport_seqpacket_dequeue); From patchwork Tue Mar 23 13:13:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157797 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, 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 BBB2DC433DB for ; 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Tue, 23 Mar 2021 16:13:22 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.64.121) 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 15.1.2176.2; Tue, 23 Mar 2021 16:13:22 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Norbert Slusarek , Colin Ian King , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 13/22] virtio/vsock: add SEQPACKET receive logic Date: Tue, 23 Mar 2021 16:13:13 +0300 Message-ID: <20210323131316.2461284-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.64.121] 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This modifies current receive logic for SEQPACKET support: 1) Inserts 'SEQ_BEGIN' packet to socket's rx queue. 2) Inserts 'RW' packet to socket's rx queue, but without merging with buffer of last packet in queue. 3) Performs check for packet and socket types on receive(if mismatch, then reset connection). Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- v6 -> v7: In 'virtio_transport_recv_pkt()', 'sock_put()' is added, when type of received packet does not match to the type of socket. net/vmw_vsock/virtio_transport_common.c | 64 +++++++++++++++++-------- 1 file changed, 45 insertions(+), 19 deletions(-) diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 41f05034593e..bfe0d7026bf8 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -165,6 +165,14 @@ void virtio_transport_deliver_tap_pkt(struct virtio_vsock_pkt *pkt) } EXPORT_SYMBOL_GPL(virtio_transport_deliver_tap_pkt); +static u16 virtio_transport_get_type(struct sock *sk) +{ + if (sk->sk_type == SOCK_STREAM) + return VIRTIO_VSOCK_TYPE_STREAM; + else + return VIRTIO_VSOCK_TYPE_SEQPACKET; +} + /* This function can only be used on connecting/connected sockets, * since a socket assigned to a transport is required. * @@ -1075,25 +1083,27 @@ virtio_transport_recv_enqueue(struct vsock_sock *vsk, goto out; } - /* Try to copy small packets into the buffer of last packet queued, - * to avoid wasting memory queueing the entire buffer with a small - * payload. - */ - if (pkt->len <= GOOD_COPY_LEN && !list_empty(&vvs->rx_queue)) { - struct virtio_vsock_pkt *last_pkt; + if (le16_to_cpu(pkt->hdr.type) == VIRTIO_VSOCK_TYPE_STREAM) { + /* Try to copy small packets into the buffer of last packet queued, + * to avoid wasting memory queueing the entire buffer with a small + * payload. + */ + if (pkt->len <= GOOD_COPY_LEN && !list_empty(&vvs->rx_queue)) { + struct virtio_vsock_pkt *last_pkt; - last_pkt = list_last_entry(&vvs->rx_queue, - struct virtio_vsock_pkt, list); + last_pkt = list_last_entry(&vvs->rx_queue, + struct virtio_vsock_pkt, list); - /* If there is space in the last packet queued, we copy the - * new packet in its buffer. - */ - if (pkt->len <= last_pkt->buf_len - last_pkt->len) { - memcpy(last_pkt->buf + last_pkt->len, pkt->buf, - pkt->len); - last_pkt->len += pkt->len; - free_pkt = true; - goto out; + /* If there is space in the last packet queued, we copy the + * new packet in its buffer. + */ + if (pkt->len <= last_pkt->buf_len - last_pkt->len) { + memcpy(last_pkt->buf + last_pkt->len, pkt->buf, + pkt->len); + last_pkt->len += pkt->len; + free_pkt = true; + goto out; + } } } @@ -1113,9 +1123,13 @@ virtio_transport_recv_connected(struct sock *sk, int err = 0; switch (le16_to_cpu(pkt->hdr.op)) { + case VIRTIO_VSOCK_OP_SEQ_BEGIN: + case VIRTIO_VSOCK_OP_SEQ_END: case VIRTIO_VSOCK_OP_RW: virtio_transport_recv_enqueue(vsk, pkt); - sk->sk_data_ready(sk); + + if (le16_to_cpu(pkt->hdr.op) != VIRTIO_VSOCK_OP_SEQ_BEGIN) + sk->sk_data_ready(sk); return err; case VIRTIO_VSOCK_OP_CREDIT_UPDATE: sk->sk_write_space(sk); @@ -1258,6 +1272,12 @@ virtio_transport_recv_listen(struct sock *sk, struct virtio_vsock_pkt *pkt, return 0; } +static bool virtio_transport_valid_type(u16 type) +{ + return (type == VIRTIO_VSOCK_TYPE_STREAM) || + (type == VIRTIO_VSOCK_TYPE_SEQPACKET); +} + /* We are under the virtio-vsock's vsock->rx_lock or vhost-vsock's vq->mutex * lock. */ @@ -1283,7 +1303,7 @@ void virtio_transport_recv_pkt(struct virtio_transport *t, le32_to_cpu(pkt->hdr.buf_alloc), le32_to_cpu(pkt->hdr.fwd_cnt)); - if (le16_to_cpu(pkt->hdr.type) != VIRTIO_VSOCK_TYPE_STREAM) { + if (!virtio_transport_valid_type(le16_to_cpu(pkt->hdr.type))) { (void)virtio_transport_reset_no_sock(t, pkt); goto free_pkt; } @@ -1300,6 +1320,12 @@ void virtio_transport_recv_pkt(struct virtio_transport *t, } } + if (virtio_transport_get_type(sk) != le16_to_cpu(pkt->hdr.type)) { + (void)virtio_transport_reset_no_sock(t, pkt); + sock_put(sk); + goto free_pkt; + } + vsk = vsock_sk(sk); lock_sock(sk); From patchwork Tue Mar 23 13:13:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157799 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, 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 14BEEC433C1 for ; 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Tue, 23 Mar 2021 16:13:42 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.64.121) 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 15.1.2176.2; Tue, 23 Mar 2021 16:13:41 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Norbert Slusarek , Andra Paraschiv , Colin Ian King , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 14/22] virtio/vsock: rest of SOCK_SEQPACKET support Date: Tue, 23 Mar 2021 16:13:29 +0300 Message-ID: <20210323131332.2461409-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.64.121] 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds rest of logic for SEQPACKET: 1) SEQPACKET specific functions which send SEQ_BEGIN/SEQ_END. Note that both functions may sleep to wait enough space for SEQPACKET header. 2) SEQ_BEGIN/SEQ_END in TAP packet capture. 3) Send SHUTDOWN on socket close for SEQPACKET type. 4) Set SEQPACKET packet type during send. 5) Set MSG_EOR in flags for SEQPACKET during send. 6) 'seqpacket_allow' flag to virtio transport. Signed-off-by: Arseny Krasnov --- v6 -> v7: In 'virtio_transport_seqpacket_enqueue()', 'next_tx_msg_id' is updated in both cases when message send successfully or error occured. include/linux/virtio_vsock.h | 7 ++ net/vmw_vsock/virtio_transport_common.c | 88 ++++++++++++++++++++++++- 2 files changed, 93 insertions(+), 2 deletions(-) diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h index 0e3aa395c07c..ab5f56fd7251 100644 --- a/include/linux/virtio_vsock.h +++ b/include/linux/virtio_vsock.h @@ -22,6 +22,7 @@ struct virtio_vsock_seq_state { u32 user_read_seq_len; u32 user_read_copied; u32 curr_rx_msg_id; + u32 next_tx_msg_id; }; /* Per-socket state (accessed via vsk->trans) */ @@ -76,6 +77,8 @@ struct virtio_transport { /* Takes ownership of the packet */ int (*send_pkt)(struct virtio_vsock_pkt *pkt); + + bool seqpacket_allow; }; ssize_t @@ -89,6 +92,10 @@ virtio_transport_dgram_dequeue(struct vsock_sock *vsk, size_t len, int flags); int +virtio_transport_seqpacket_enqueue(struct vsock_sock *vsk, + struct msghdr *msg, + size_t len); +int virtio_transport_seqpacket_dequeue(struct vsock_sock *vsk, struct msghdr *msg, int flags, diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index bfe0d7026bf8..01a56c7da8bd 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -139,6 +139,8 @@ static struct sk_buff *virtio_transport_build_skb(void *opaque) break; case VIRTIO_VSOCK_OP_CREDIT_UPDATE: case VIRTIO_VSOCK_OP_CREDIT_REQUEST: + case VIRTIO_VSOCK_OP_SEQ_BEGIN: + case VIRTIO_VSOCK_OP_SEQ_END: hdr->op = cpu_to_le16(AF_VSOCK_OP_CONTROL); break; default: @@ -187,7 +189,12 @@ static int virtio_transport_send_pkt_info(struct vsock_sock *vsk, struct virtio_vsock_pkt *pkt; u32 pkt_len = info->pkt_len; - info->type = VIRTIO_VSOCK_TYPE_STREAM; + info->type = virtio_transport_get_type(sk_vsock(vsk)); + + if (info->type == VIRTIO_VSOCK_TYPE_SEQPACKET && + info->msg && + info->msg->msg_flags & MSG_EOR) + info->flags |= VIRTIO_VSOCK_RW_EOR; t_ops = virtio_transport_get_ops(vsk); if (unlikely(!t_ops)) @@ -401,6 +408,43 @@ virtio_transport_stream_do_dequeue(struct vsock_sock *vsk, return err; } +static int virtio_transport_seqpacket_send_ctrl(struct vsock_sock *vsk, + int type, + size_t len, + int flags) +{ + struct virtio_vsock_sock *vvs = vsk->trans; + struct virtio_vsock_pkt_info info = { + .op = type, + .vsk = vsk, + .pkt_len = sizeof(struct virtio_vsock_seq_hdr) + }; + + struct virtio_vsock_seq_hdr seq_hdr = { + .msg_id = cpu_to_le32(vvs->seq_state.next_tx_msg_id), + .msg_len = cpu_to_le32(len) + }; + + struct kvec seq_hdr_kiov = { + .iov_base = (void *)&seq_hdr, + .iov_len = sizeof(struct virtio_vsock_seq_hdr) + }; + + struct msghdr msg = {0}; + + //XXX: do we need 'vsock_transport_send_notify_data' pointer? + if (vsock_wait_space(sk_vsock(vsk), + sizeof(struct virtio_vsock_seq_hdr), + flags, NULL)) + return -1; + + iov_iter_kvec(&msg.msg_iter, WRITE, &seq_hdr_kiov, 1, sizeof(seq_hdr)); + + info.msg = &msg; + + return virtio_transport_send_pkt_info(vsk, &info); +} + static inline void virtio_transport_remove_pkt(struct virtio_vsock_pkt *pkt) { list_del(&pkt->list); @@ -595,6 +639,46 @@ virtio_transport_seqpacket_dequeue(struct vsock_sock *vsk, } EXPORT_SYMBOL_GPL(virtio_transport_seqpacket_dequeue); +int +virtio_transport_seqpacket_enqueue(struct vsock_sock *vsk, + struct msghdr *msg, + size_t len) +{ + int written = -1; + + if (msg->msg_iter.iov_offset == 0) { + /* Send SEQBEGIN. */ + if (virtio_transport_seqpacket_send_ctrl(vsk, + VIRTIO_VSOCK_OP_SEQ_BEGIN, + len, + msg->msg_flags) < 0) + goto out; + } + + written = virtio_transport_stream_enqueue(vsk, msg, len); + + if (written < 0) + goto out; + + if (msg->msg_iter.count == 0) { + /* Send SEQEND. */ + virtio_transport_seqpacket_send_ctrl(vsk, + VIRTIO_VSOCK_OP_SEQ_END, + 0, + msg->msg_flags); + } +out: + /* Update next id on error or message transmission done. */ + if (written < 0 || msg->msg_iter.count == 0) { + struct virtio_vsock_sock *vvs = vsk->trans; + + vvs->seq_state.next_tx_msg_id++; + } + + return written; +} +EXPORT_SYMBOL_GPL(virtio_transport_seqpacket_enqueue); + int virtio_transport_dgram_dequeue(struct vsock_sock *vsk, struct msghdr *msg, @@ -1014,7 +1098,7 @@ void virtio_transport_release(struct vsock_sock *vsk) struct sock *sk = &vsk->sk; bool remove_sock = true; - if (sk->sk_type == SOCK_STREAM) + if (sk->sk_type == SOCK_STREAM || sk->sk_type == SOCK_SEQPACKET) remove_sock = virtio_transport_close(vsk); list_for_each_entry_safe(pkt, tmp, &vvs->rx_queue, list) { From patchwork Tue Mar 23 13:13:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157801 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, 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 79630C433E4 for ; Tue, 23 Mar 2021 13:15:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1A04A61878 for ; Tue, 23 Mar 2021 13:15:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231636AbhCWNOa (ORCPT ); Tue, 23 Mar 2021 09:14:30 -0400 Received: from mx12.kaspersky-labs.com ([91.103.66.155]:31575 "EHLO mx12.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231641AbhCWNOD (ORCPT ); Tue, 23 Mar 2021 09:14:03 -0400 Received: from relay12.kaspersky-labs.com (unknown [127.0.0.10]) by relay12.kaspersky-labs.com (Postfix) with ESMTP id 2911C7696E; Tue, 23 Mar 2021 16:13:59 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505239; bh=EeL6hXSVnxfFL+svxeMYKMkiWlk6LB5aH1xrBJXqfyg=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=JMe0HQkm2NuHWxOJ9lRlmiW/J6Nd22N4A0cEcAgYBOlOS0QXQv9IptlbWuz7qehwF rQpCvOA30Jc+/V427KdUhnqpgaxassaBfBLyLAVXTiYKNPEpjay9tG3MMbM7mfETBZ tcclWpDsuDNHbs2mTsfrg7iL5BmAvWYM3ynKkDcJKQpC+s0mN/v3XEdHmPh8f3q/No thd9XgFKY/keiXpTbn2VWCDlWpl6M/yslMPLusLGeowsVhMvYYbeBLtJLQpZdtEw3p WLGf/VuSpGdnlm1nr6KKiog65mlNfjyHRTa5NMdd/a5uHfrzcfL1fEjrZmmKmX3Wx8 36N2ItZLtH2mg== 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 mailhub12.kaspersky-labs.com (Postfix) with ESMTPS id E01D37686F; Tue, 23 Mar 2021 16:13:58 +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 15.1.2176.2; Tue, 23 Mar 2021 16:13:57 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Norbert Slusarek , Colin Ian King , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 15/22] virtio/vsock: SEQPACKET support feature bit Date: Tue, 23 Mar 2021 16:13:49 +0300 Message-ID: <20210323131352.2461534-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.129] X-ClientProxiedBy: hqmailmbx1.avp.ru (10.64.67.241) 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds new virtio vsock specific feature bit which means SOCK_SEQPACKET support. Guest negotiates this bit with vhost, thus checking that vhost side supports SEQPACKET. Signed-off-by: Arseny Krasnov --- include/uapi/linux/virtio_vsock.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h index 692f8078cced..619aaebb355a 100644 --- a/include/uapi/linux/virtio_vsock.h +++ b/include/uapi/linux/virtio_vsock.h @@ -38,6 +38,9 @@ #include #include +/* The feature bitmap for virtio vsock */ +#define VIRTIO_VSOCK_F_SEQPACKET 0 /* SOCK_SEQPACKET supported */ + struct virtio_vsock_config { __le64 guest_cid; } __attribute__((packed)); From patchwork Tue Mar 23 13:14:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157803 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, 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 F2D6FC433DB for ; Tue, 23 Mar 2021 13:15:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A045361878 for ; Tue, 23 Mar 2021 13:15:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231674AbhCWNOc (ORCPT ); Tue, 23 Mar 2021 09:14:32 -0400 Received: from mx12.kaspersky-labs.com ([91.103.66.155]:31798 "EHLO mx12.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231670AbhCWNOR (ORCPT ); Tue, 23 Mar 2021 09:14:17 -0400 Received: from relay12.kaspersky-labs.com (unknown [127.0.0.10]) by relay12.kaspersky-labs.com (Postfix) with ESMTP id EFBEE76C18; Tue, 23 Mar 2021 16:14:12 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505253; bh=o77v4gAWil8p/q+6G96P9ANsPBezf+oJTjCpeHbUpEc=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=TA02UTEjqRawuSBSJIaA4bHRT1BgREV6c4LduHlXwQaQ48c4gP/tQp47dMPENOM/+ VQXapIBql6dEUA+rV9C0l4j7X7W/IFN+h4CWNAkJfuB6bSNGNUuOzOh6MQqSXLinx/ +5JX5CJ/chDkCi0aDX8+2HyBInseQpyPeVXCYTtcpPYJvQQLy5EDM1QHHFanf5WI7x Icmnwwo4t0591zr5DsJwWFx5ru+gVFI7+66RvjUCH8eX90qmK8Ee+5GLh5LjrfRsvm Ydg81gwvDeNOKfMQcWKCh0fqpbrzZSb6eVdsoEK25d3S70gEjEvMU01L+7a5bu5t+p mqPp82XzmndFw== 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 mailhub12.kaspersky-labs.com (Postfix) with ESMTPS id BB2A476C08; Tue, 23 Mar 2021 16:14:12 +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 15.1.2176.2; Tue, 23 Mar 2021 16:14:12 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Colin Ian King , Norbert Slusarek , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 16/22] virtio/vsock: setup SEQPACKET ops for transport Date: Tue, 23 Mar 2021 16:14:03 +0300 Message-ID: <20210323131406.2461651-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-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: 5.9.20, Database issued on: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds SEQPACKET ops for virtio transport and 'seqpacket_allow()' callback. Signed-off-by: Arseny Krasnov --- net/vmw_vsock/virtio_transport.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 2700a63ab095..83ae2078c847 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -443,6 +443,8 @@ static void virtio_vsock_rx_done(struct virtqueue *vq) queue_work(virtio_vsock_workqueue, &vsock->rx_work); } +static bool virtio_transport_seqpacket_allow(void); + static struct virtio_transport virtio_transport = { .transport = { .module = THIS_MODULE, @@ -469,6 +471,10 @@ static struct virtio_transport virtio_transport = { .stream_is_active = virtio_transport_stream_is_active, .stream_allow = virtio_transport_stream_allow, + .seqpacket_dequeue = virtio_transport_seqpacket_dequeue, + .seqpacket_enqueue = virtio_transport_seqpacket_enqueue, + .seqpacket_allow = virtio_transport_seqpacket_allow, + .notify_poll_in = virtio_transport_notify_poll_in, .notify_poll_out = virtio_transport_notify_poll_out, .notify_recv_init = virtio_transport_notify_recv_init, @@ -483,8 +489,14 @@ static struct virtio_transport virtio_transport = { }, .send_pkt = virtio_transport_send_pkt, + .seqpacket_allow = false }; +static bool virtio_transport_seqpacket_allow(void) +{ + return virtio_transport.seqpacket_allow; +} + static void virtio_transport_rx_work(struct work_struct *work) { struct virtio_vsock *vsock = From patchwork Tue Mar 23 13:14:18 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157805 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, 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 06028C433C1 for ; Tue, 23 Mar 2021 13:15:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B33A461994 for ; Tue, 23 Mar 2021 13:15:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231679AbhCWNPD (ORCPT ); Tue, 23 Mar 2021 09:15:03 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:49556 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231592AbhCWNOb (ORCPT ); Tue, 23 Mar 2021 09:14:31 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id 10B9A521EB6; Tue, 23 Mar 2021 16:14:28 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505268; bh=W/dHZJY2oae7Ra2cf+/urTcJsHpw9ZoLn22EpE2aI38=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=MzGaQkl8lSBgejucdfXI3jINwXAXXdLCPH6DvpShNgzXdUtLmwW238yX2iHRHaWJA O7DATBH16KOtnwxlD+RdDONsIO8mgYXhmTV0qiKrlQcYUAaG1TC68SkbRtRABEzYbq VxUcuLxO5E9hvzasxHApAt4B0CxQIFS8h2TYulYPozRhRV3DxHZ2pKI+jrL7c5nex/ yjhgc3zHsdez+UqBdsQfAnPyJ85CxHgzv6pbpEWYxvfBP9e28f20Tfr+WmSOIWRSkH 8kuuQQqQDU9fSx43dgW95VE0+0+sKnp02PDlKPiz2y+9xbrWiRp6AfLr5Pv9iLRYzq LoWONNS/ZOWxw== 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 B701D521EDF; Tue, 23 Mar 2021 16:14:27 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.64.121) 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 15.1.2176.2; Tue, 23 Mar 2021 16:14:27 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Norbert Slusarek , Colin Ian King , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 17/22] vhost/vsock: setup SEQPACKET ops for transport Date: Tue, 23 Mar 2021 16:14:18 +0300 Message-ID: <20210323131421.2461760-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.64.121] X-ClientProxiedBy: hqmailmbx1.avp.ru (10.64.67.241) 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This also removes ignore of non-stream type of packets and adds 'seqpacket_allow()' callback. Signed-off-by: Arseny Krasnov --- drivers/vhost/vsock.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 5e78fb719602..5af141772068 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -354,8 +354,7 @@ vhost_vsock_alloc_pkt(struct vhost_virtqueue *vq, return NULL; } - if (le16_to_cpu(pkt->hdr.type) == VIRTIO_VSOCK_TYPE_STREAM) - pkt->len = le32_to_cpu(pkt->hdr.len); + pkt->len = le32_to_cpu(pkt->hdr.len); /* No payload */ if (!pkt->len) @@ -398,6 +397,8 @@ static bool vhost_vsock_more_replies(struct vhost_vsock *vsock) return val < vq->num; } +static bool vhost_transport_seqpacket_allow(void); + static struct virtio_transport vhost_transport = { .transport = { .module = THIS_MODULE, @@ -424,6 +425,10 @@ static struct virtio_transport vhost_transport = { .stream_is_active = virtio_transport_stream_is_active, .stream_allow = virtio_transport_stream_allow, + .seqpacket_dequeue = virtio_transport_seqpacket_dequeue, + .seqpacket_enqueue = virtio_transport_seqpacket_enqueue, + .seqpacket_allow = vhost_transport_seqpacket_allow, + .notify_poll_in = virtio_transport_notify_poll_in, .notify_poll_out = virtio_transport_notify_poll_out, .notify_recv_init = virtio_transport_notify_recv_init, @@ -439,8 +444,14 @@ static struct virtio_transport vhost_transport = { }, .send_pkt = vhost_transport_send_pkt, + .seqpacket_allow = false }; +static bool vhost_transport_seqpacket_allow(void) +{ + return vhost_transport.seqpacket_allow; +} + static void vhost_vsock_handle_tx_kick(struct vhost_work *work) { struct vhost_virtqueue *vq = container_of(work, struct vhost_virtqueue, From patchwork Tue Mar 23 13:14:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157807 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, 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 3CA2CC433E0 for ; Tue, 23 Mar 2021 13:15:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F0FAB61984 for ; Tue, 23 Mar 2021 13:15:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231754AbhCWNPH (ORCPT ); Tue, 23 Mar 2021 09:15:07 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:49671 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231668AbhCWNOs (ORCPT ); Tue, 23 Mar 2021 09:14:48 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id 7073E5213BA; Tue, 23 Mar 2021 16:14:43 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505283; bh=DwYU5Q7zURiBjGsh0plRI9YiCoTeLTZwkPZtP65zWfo=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=2icG0g5TuJoQyVS2K3Byp67nt8gajSUqJmuEpiWWABnjkqJG0MjkcPu8ZwEMfD8LY uHU9MlKl7eWmSB6sqCO0RgtX9ZEguTc3On45W/4LkjHBcIWn6qfCbM1xHrFiryblpD yeEgjoa00Jn60OZHJVmVJfH2H8ADE4kEnYjLDPkCA3TnCiQLQUbInpH/XntyzbwQkx JGK6p+KTvdy4J2NJ5VCTa25+xpwniHSMssu1KZOV/zLWOQEd9Tk/PQ9dFtiqbC1uq6 k6w7hyYRLeKEhMNIiTvj9/TU9IX9MHU7X4UO6kE+4MWPw0jsgZplLz/G+sXLYAOBaM NLvWw36Y2821Q== 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 0371E521151; Tue, 23 Mar 2021 16:14:43 +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 15.1.2176.2; Tue, 23 Mar 2021 16:14:42 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Norbert Slusarek , Colin Ian King , Andra Paraschiv , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 18/22] vsock/loopback: setup SEQPACKET ops for transport Date: Tue, 23 Mar 2021 16:14:33 +0300 Message-ID: <20210323131436.2461881-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-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: 5.9.20, Database issued on: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds SEQPACKET ops for loopback transport and 'seqpacket_allow()' callback. Signed-off-by: Arseny Krasnov Reviewed-by: Stefano Garzarella --- net/vmw_vsock/vsock_loopback.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/net/vmw_vsock/vsock_loopback.c b/net/vmw_vsock/vsock_loopback.c index a45f7ffca8c5..d38ffdbecc84 100644 --- a/net/vmw_vsock/vsock_loopback.c +++ b/net/vmw_vsock/vsock_loopback.c @@ -63,6 +63,8 @@ static int vsock_loopback_cancel_pkt(struct vsock_sock *vsk) return 0; } +static bool vsock_loopback_seqpacket_allow(void); + static struct virtio_transport loopback_transport = { .transport = { .module = THIS_MODULE, @@ -89,6 +91,10 @@ static struct virtio_transport loopback_transport = { .stream_is_active = virtio_transport_stream_is_active, .stream_allow = virtio_transport_stream_allow, + .seqpacket_dequeue = virtio_transport_seqpacket_dequeue, + .seqpacket_enqueue = virtio_transport_seqpacket_enqueue, + .seqpacket_allow = vsock_loopback_seqpacket_allow, + .notify_poll_in = virtio_transport_notify_poll_in, .notify_poll_out = virtio_transport_notify_poll_out, .notify_recv_init = virtio_transport_notify_recv_init, @@ -103,8 +109,14 @@ static struct virtio_transport loopback_transport = { }, .send_pkt = vsock_loopback_send_pkt, + .seqpacket_allow = true }; +static bool vsock_loopback_seqpacket_allow(void) +{ + return loopback_transport.seqpacket_allow; +} + static void vsock_loopback_work(struct work_struct *work) { struct vsock_loopback *vsock = From patchwork Tue Mar 23 13:14:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157809 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, 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 2FE7DC433DB for ; Tue, 23 Mar 2021 13:16:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D76DF61990 for ; Tue, 23 Mar 2021 13:16:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231700AbhCWNPd (ORCPT ); Tue, 23 Mar 2021 09:15:33 -0400 Received: from mx13.kaspersky-labs.com ([91.103.66.164]:49877 "EHLO mx13.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231749AbhCWNPE (ORCPT ); Tue, 23 Mar 2021 09:15:04 -0400 Received: from relay13.kaspersky-labs.com (unknown [127.0.0.10]) by relay13.kaspersky-labs.com (Postfix) with ESMTP id 8AE02521EE1; Tue, 23 Mar 2021 16:14:57 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505297; bh=biGI84Bpq0MRHKSw1OPFmq5AZjINgIY1rMqGZbuyBqA=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=Mxr77CkpNc/EmqTclhbU2gB/zky4CmFRXqUne2KJSGxuz9WixDOyW0n+D0iw0L4UD bs2zVy9cWCEYUHNxQfLsgR6LCCcfI+6HabIt6I64TY4qGDcouyDXi/E+RiaPDhIEVU Pdpvse8ziQ1jJjifo2hWMY00qbSforSFogLQ44wRQ3e2YNnCqgJUQ09/cenD7oNSO5 UnTIvTSitfK2I1mYlw34edJbe6odr3q3GiGFwVgoRk5BrvooWjmifOt0gKDW/tHjg4 9zt/5xvED1PyVVLnGxSI0iatrAqdkQ62vXuzNvN1yt5neIP5MkYdUq0YHIa+VPBJmD OVI/4o9LJQpBg== 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 39CD3521ED1; Tue, 23 Mar 2021 16:14:57 +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 15.1.2176.2; Tue, 23 Mar 2021 16:14:56 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Andra Paraschiv , Norbert Slusarek , Colin Ian King , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 19/22] vhost/vsock: SEQPACKET feature bit support Date: Tue, 23 Mar 2021 16:14:47 +0300 Message-ID: <20210323131450.2461998-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.129] X-ClientProxiedBy: hqmailmbx1.avp.ru (10.64.67.241) 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: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds handling of SEQPACKET bit: if guest sets features with this bit cleared, then SOCK_SEQPACKET support will be disabled. Signed-off-by: Arseny Krasnov --- drivers/vhost/vsock.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/vhost/vsock.c b/drivers/vhost/vsock.c index 5af141772068..710d99e61ccc 100644 --- a/drivers/vhost/vsock.c +++ b/drivers/vhost/vsock.c @@ -31,7 +31,8 @@ enum { VHOST_VSOCK_FEATURES = VHOST_FEATURES | - (1ULL << VIRTIO_F_ACCESS_PLATFORM) + (1ULL << VIRTIO_F_ACCESS_PLATFORM) | + (1ULL << VIRTIO_VSOCK_F_SEQPACKET) }; enum { @@ -796,6 +797,9 @@ static int vhost_vsock_set_features(struct vhost_vsock *vsock, u64 features) goto err; } + if (features & (1ULL << VIRTIO_VSOCK_F_SEQPACKET)) + vhost_transport.seqpacket_allow = true; + for (i = 0; i < ARRAY_SIZE(vsock->vqs); i++) { vq = &vsock->vqs[i]; mutex_lock(&vq->mutex); From patchwork Tue Mar 23 13:15:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157811 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, 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 1B7BAC433DB for ; Tue, 23 Mar 2021 13:17:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D98BA61878 for ; Tue, 23 Mar 2021 13:17:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230225AbhCWNQf (ORCPT ); Tue, 23 Mar 2021 09:16:35 -0400 Received: from mx12.kaspersky-labs.com ([91.103.66.155]:32467 "EHLO mx12.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231592AbhCWNPP (ORCPT ); Tue, 23 Mar 2021 09:15:15 -0400 Received: from relay12.kaspersky-labs.com (unknown [127.0.0.10]) by relay12.kaspersky-labs.com (Postfix) with ESMTP id 79F1576859; Tue, 23 Mar 2021 16:15:12 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505312; bh=OR8kR+7kRVbqH+d8r/EG2Iprd9hqIkh/rAcgS4VwKRk=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=O8LO0rX4gOkOTB1POg3ea6hi3CVu11NY0fWa3d/vF7OlbhwgBadyVDE44EfuTtIFt edF1qETTvJ8/ru9a+FMjZlczP76ltFkatfjuukp8ChMZ4Gdc72J0Zbm2sjmH/eDAMc 26JxkjTstdKvjFsTwLSYhweYxIfFJhDklSkjuabUzsWCquw4bE01ohLgHJrWA055cR 6RsnxmmdBA2I4w/VdnWbaAiW2JiQzb4e123XTrxduTA2gkAbUUEicHGVQD4cOs/9tw 898NdedvnEg4RekqDMWgLmt0Xk+dODrl2UVTkKDITbI8gurs6Lfpvwo74mtvSrDcqV kfU/Xwdxb5xmg== 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 mailhub12.kaspersky-labs.com (Postfix) with ESMTPS id 3B3007686F; Tue, 23 Mar 2021 16:15:12 +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 15.1.2176.2; Tue, 23 Mar 2021 16:15:11 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Norbert Slusarek , Andra Paraschiv , Colin Ian King , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 20/22] virtio/vsock: SEQPACKET feature bit support Date: Tue, 23 Mar 2021 16:15:02 +0300 Message-ID: <20210323131505.2462107-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-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: 5.9.20, Database issued on: 03/23/2021 12:55:25 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;kaspersky.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds handling of SEQPACKET bit: guest tries to negotiate it with vhost. Signed-off-by: Arseny Krasnov --- net/vmw_vsock/virtio_transport.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 83ae2078c847..ee99bd919a12 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -624,6 +624,10 @@ static int virtio_vsock_probe(struct virtio_device *vdev) rcu_assign_pointer(the_virtio_vsock, vsock); mutex_unlock(&the_virtio_vsock_mutex); + + if (vdev->features & (1ULL << VIRTIO_VSOCK_F_SEQPACKET)) + virtio_transport.seqpacket_allow = true; + return 0; out: @@ -707,6 +711,7 @@ static struct virtio_device_id id_table[] = { }; static unsigned int features[] = { + VIRTIO_VSOCK_F_SEQPACKET }; static struct virtio_driver virtio_vsock_driver = { From patchwork Tue Mar 23 13:15:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157853 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, 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 38FD7C433C1 for ; Tue, 23 Mar 2021 13:17:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F0D6061878 for ; Tue, 23 Mar 2021 13:17:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231528AbhCWNQi (ORCPT ); Tue, 23 Mar 2021 09:16:38 -0400 Received: from mx12.kaspersky-labs.com ([91.103.66.155]:32633 "EHLO mx12.kaspersky-labs.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231356AbhCWNPa (ORCPT ); Tue, 23 Mar 2021 09:15:30 -0400 Received: from relay12.kaspersky-labs.com (unknown [127.0.0.10]) by relay12.kaspersky-labs.com (Postfix) with ESMTP id 4159576FD6; Tue, 23 Mar 2021 16:15:26 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kaspersky.com; s=mail202102; t=1616505326; bh=d6UNRDfKrSHDQO9VuFpN5iJxH7zpQLQmRLJO/JwBDFM=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type; b=JWasKkkXp4M+BJ+FPBzPEW1sCyIzSrDqJ4XNuUkmcgUlzbst+sjEjTSMuJIxTJjTr +GPSpVl9qb5PyOGcisiOjShGT20tPtUVt3hlXA0dRDNnoFZFv+2Q9euXWtEJofVNK5 idjPZYC1KJzLPIOzEMCA+AN0cdqHlt7bTpX2RsZiq9NQa/Esqpt78VVGpfZhM3JBVI HblhHGB9KQH2lLhmHXP+uaZ4OQtNWdU+dCZlRxm6GF3q/1rPy6DqNEi92FLz+zirID qwyjZCDPruAsNiuZrvGrsDmAu98TtQhkOofWzCCf2G/CGl6n2GTB+PkIcXyTXRk1vU psVLiZlqd99uQ== 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 mailhub12.kaspersky-labs.com (Postfix) with ESMTPS id 0796B76D43; Tue, 23 Mar 2021 16:15:26 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.64.121) 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 15.1.2176.2; Tue, 23 Mar 2021 16:15:24 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Jorgen Hansen , Norbert Slusarek , Colin Ian King , Andra Paraschiv , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 21/22] vsock_test: add SOCK_SEQPACKET tests Date: Tue, 23 Mar 2021 16:15:17 +0300 Message-ID: <20210323131520.2462225-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.64.121] 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: 5.9.20, Database issued on: 03/23/2021 13:01:27 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: kaspersky.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com: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: 03/23/2021 12:58:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This adds two tests of SOCK_SEQPACKET socket: both transfer data and then test MSG_EOR and MSG_TRUNC flags. Cases for connect(), bind(), etc. are not tested, because it is same as for stream socket. Signed-off-by: Arseny Krasnov --- tools/testing/vsock/util.c | 32 ++++++-- tools/testing/vsock/util.h | 3 + tools/testing/vsock/vsock_test.c | 126 +++++++++++++++++++++++++++++++ 3 files changed, 156 insertions(+), 5 deletions(-) diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c index 93cbd6f603f9..2acbb7703c6a 100644 --- a/tools/testing/vsock/util.c +++ b/tools/testing/vsock/util.c @@ -84,7 +84,7 @@ void vsock_wait_remote_close(int fd) } /* Connect to and return the file descriptor. */ -int vsock_stream_connect(unsigned int cid, unsigned int port) +static int vsock_connect(unsigned int cid, unsigned int port, int type) { union { struct sockaddr sa; @@ -101,7 +101,7 @@ int vsock_stream_connect(unsigned int cid, unsigned int port) control_expectln("LISTENING"); - fd = socket(AF_VSOCK, SOCK_STREAM, 0); + fd = socket(AF_VSOCK, type, 0); timeout_begin(TIMEOUT); do { @@ -120,11 +120,21 @@ int vsock_stream_connect(unsigned int cid, unsigned int port) return fd; } +int vsock_stream_connect(unsigned int cid, unsigned int port) +{ + return vsock_connect(cid, port, SOCK_STREAM); +} + +int vsock_seqpacket_connect(unsigned int cid, unsigned int port) +{ + return vsock_connect(cid, port, SOCK_SEQPACKET); +} + /* Listen on and return the first incoming connection. The remote * address is stored to clientaddrp. clientaddrp may be NULL. */ -int vsock_stream_accept(unsigned int cid, unsigned int port, - struct sockaddr_vm *clientaddrp) +static int vsock_accept(unsigned int cid, unsigned int port, + struct sockaddr_vm *clientaddrp, int type) { union { struct sockaddr sa; @@ -145,7 +155,7 @@ int vsock_stream_accept(unsigned int cid, unsigned int port, int client_fd; int old_errno; - fd = socket(AF_VSOCK, SOCK_STREAM, 0); + fd = socket(AF_VSOCK, type, 0); if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) { perror("bind"); @@ -189,6 +199,18 @@ int vsock_stream_accept(unsigned int cid, unsigned int port, return client_fd; } +int vsock_stream_accept(unsigned int cid, unsigned int port, + struct sockaddr_vm *clientaddrp) +{ + return vsock_accept(cid, port, clientaddrp, SOCK_STREAM); +} + +int vsock_seqpacket_accept(unsigned int cid, unsigned int port, + struct sockaddr_vm *clientaddrp) +{ + return vsock_accept(cid, port, clientaddrp, SOCK_SEQPACKET); +} + /* Transmit one byte and check the return value. * * expected_ret: diff --git a/tools/testing/vsock/util.h b/tools/testing/vsock/util.h index e53dd09d26d9..a3375ad2fb7f 100644 --- a/tools/testing/vsock/util.h +++ b/tools/testing/vsock/util.h @@ -36,8 +36,11 @@ struct test_case { void init_signals(void); unsigned int parse_cid(const char *str); int vsock_stream_connect(unsigned int cid, unsigned int port); +int vsock_seqpacket_connect(unsigned int cid, unsigned int port); int vsock_stream_accept(unsigned int cid, unsigned int port, struct sockaddr_vm *clientaddrp); +int vsock_seqpacket_accept(unsigned int cid, unsigned int port, + struct sockaddr_vm *clientaddrp); void vsock_wait_remote_close(int fd); void send_byte(int fd, int expected_ret, int flags); void recv_byte(int fd, int expected_ret, int flags); diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c index 5a4fb80fa832..5fca9be5b1dd 100644 --- a/tools/testing/vsock/vsock_test.c +++ b/tools/testing/vsock/vsock_test.c @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include "timeout.h" #include "control.h" @@ -279,6 +281,120 @@ static void test_stream_msg_peek_server(const struct test_opts *opts) close(fd); } +#define MESSAGES_CNT 7 +#define MESSAGE_EOR_IDX (MESSAGES_CNT / 2) +static void test_seqpacket_msg_eor_client(const struct test_opts *opts) +{ + int fd; + + fd = vsock_seqpacket_connect(opts->peer_cid, 1234); + if (fd < 0) { + perror("connect"); + exit(EXIT_FAILURE); + } + + /* Send several messages, one with MSG_EOR flag */ + for (int i = 0; i < MESSAGES_CNT; i++) + send_byte(fd, 1, (i != MESSAGE_EOR_IDX) ? 0 : MSG_EOR); + + control_writeln("SENDDONE"); + close(fd); +} + +static void test_seqpacket_msg_eor_server(const struct test_opts *opts) +{ + int fd; + char buf[16]; + struct msghdr msg = {0}; + struct iovec iov = {0}; + + fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL); + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + control_expectln("SENDDONE"); + iov.iov_base = buf; + iov.iov_len = sizeof(buf); + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + + for (int i = 0; i < MESSAGES_CNT; i++) { + if (recvmsg(fd, &msg, 0) != 1) { + perror("message bound violated"); + exit(EXIT_FAILURE); + } + + if (i == MESSAGE_EOR_IDX) { + if (!(msg.msg_flags & MSG_EOR)) { + fprintf(stderr, "MSG_EOR flag expected\n"); + exit(EXIT_FAILURE); + } + } else { + if (msg.msg_flags & MSG_EOR) { + fprintf(stderr, "unexpected MSG_EOR flag\n"); + exit(EXIT_FAILURE); + } + } + } + + close(fd); +} + +#define MESSAGE_TRUNC_SZ 32 +static void test_seqpacket_msg_trunc_client(const struct test_opts *opts) +{ + int fd; + char buf[MESSAGE_TRUNC_SZ]; + + fd = vsock_seqpacket_connect(opts->peer_cid, 1234); + if (fd < 0) { + perror("connect"); + exit(EXIT_FAILURE); + } + + if (send(fd, buf, sizeof(buf), 0) != sizeof(buf)) { + perror("send failed"); + exit(EXIT_FAILURE); + } + + control_writeln("SENDDONE"); + close(fd); +} + +static void test_seqpacket_msg_trunc_server(const struct test_opts *opts) +{ + int fd; + char buf[MESSAGE_TRUNC_SZ / 2]; + struct msghdr msg = {0}; + struct iovec iov = {0}; + + fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL); + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + control_expectln("SENDDONE"); + iov.iov_base = buf; + iov.iov_len = sizeof(buf); + msg.msg_iov = &iov; + msg.msg_iovlen = 1; + + if (recvmsg(fd, &msg, MSG_TRUNC) != MESSAGE_TRUNC_SZ) { + perror("MSG_TRUNC doesn't work"); + exit(EXIT_FAILURE); + } + + if (!(msg.msg_flags & MSG_TRUNC)) { + fprintf(stderr, "MSG_TRUNC expected\n"); + exit(EXIT_FAILURE); + } + + close(fd); +} + static struct test_case test_cases[] = { { .name = "SOCK_STREAM connection reset", @@ -309,6 +425,16 @@ static struct test_case test_cases[] = { .run_client = test_stream_msg_peek_client, .run_server = test_stream_msg_peek_server, }, + { + .name = "SOCK_SEQPACKET send data MSG_EOR", + .run_client = test_seqpacket_msg_eor_client, + .run_server = test_seqpacket_msg_eor_server, + }, + { + .name = "SOCK_SEQPACKET send data MSG_TRUNC", + .run_client = test_seqpacket_msg_trunc_client, + .run_server = test_seqpacket_msg_trunc_server, + }, {}, }; From patchwork Tue Mar 23 13:15:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseny Krasnov X-Patchwork-Id: 12157855 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, 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 C1FD3C433DB for ; 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Tue, 23 Mar 2021 16:15:39 +0300 (MSK) Received: from arseniy-pc.avp.ru (10.64.68.128) 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 15.1.2176.2; Tue, 23 Mar 2021 16:15:39 +0300 From: Arseny Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "Michael S. Tsirkin" , Jason Wang , "David S. Miller" , Jakub Kicinski , Steven Rostedt , Ingo Molnar , Jorgen Hansen , Andra Paraschiv , Colin Ian King , Norbert Slusarek , Jeff Vander Stoep , Alexander Popov CC: , , , , , , Subject: [RFC PATCH v7 22/22] virtio/vsock: update trace event for SEQPACKET Date: Tue, 23 Mar 2021 16:15:30 +0300 Message-ID: <20210323131534.2462334-1-arseny.krasnov@kaspersky.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> References: <20210323130716.2459195-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 X-Originating-IP: [10.64.68.128] 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: 5.9.20, Database issued on: 03/23/2021 13:01:27 X-KSE-AntiSpam-Status: KAS_STATUS_NOT_DETECTED X-KSE-AntiSpam-Method: none X-KSE-AntiSpam-Rate: 10 X-KSE-AntiSpam-Info: Lua profiles 162595 [Mar 23 2021] X-KSE-AntiSpam-Info: LuaCore: 437 437 85ecb8eec06a7bf2f475f889e784f42bce7b4445 X-KSE-AntiSpam-Info: Version: 5.9.20.0 X-KSE-AntiSpam-Info: Envelope from: arseny.krasnov@kaspersky.com X-KSE-AntiSpam-Info: {Prob_from_in_msgid} X-KSE-AntiSpam-Info: {Tracking_from_domain_doesnt_match_to} X-KSE-AntiSpam-Info: kaspersky.com:7.1.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;arseniy-pc.avp.ru:7.1.1;127.0.0.199:7.1.2 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: 03/23/2021 13:03:00 X-KSE-AttachmentFiltering-Interceptor-Info: no applicable attachment filtering rules found X-KSE-Antivirus-Interceptor-Info: scan successful X-KSE-Antivirus-Info: Clean, bases: 23.03.2021 11:46:00 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: 2021/03/23 11:43:00 X-KLMS-AntiVirus: Kaspersky Security for Linux Mail Server, version 8.0.3.30, bases: 2021/03/23 11:40:00 #16480199 X-KLMS-AntiVirus-Status: Clean, skipped Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This updates current implementation for trace event of virtio vsock: SEQPACKET socket's type, SEQPACKET specific ops and SEQPACKET 'msg_len' and 'msg_id' fields are added. Signed-off-by: Arseny Krasnov --- .../events/vsock_virtio_transport_common.h | 48 ++++++++++++++----- net/vmw_vsock/virtio_transport_common.c | 25 +++++++++- 2 files changed, 60 insertions(+), 13 deletions(-) diff --git a/include/trace/events/vsock_virtio_transport_common.h b/include/trace/events/vsock_virtio_transport_common.h index 6782213778be..3254607eac04 100644 --- a/include/trace/events/vsock_virtio_transport_common.h +++ b/include/trace/events/vsock_virtio_transport_common.h @@ -9,9 +9,12 @@ #include TRACE_DEFINE_ENUM(VIRTIO_VSOCK_TYPE_STREAM); +TRACE_DEFINE_ENUM(VIRTIO_VSOCK_TYPE_SEQPACKET); #define show_type(val) \ - __print_symbolic(val, { VIRTIO_VSOCK_TYPE_STREAM, "STREAM" }) + __print_symbolic(val, \ + { VIRTIO_VSOCK_TYPE_STREAM, "STREAM" }, \ + { VIRTIO_VSOCK_TYPE_SEQPACKET, "SEQPACKET" }) TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_INVALID); TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_REQUEST); @@ -21,6 +24,8 @@ TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_SHUTDOWN); TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_RW); TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_CREDIT_UPDATE); TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_CREDIT_REQUEST); +TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_SEQ_BEGIN); +TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_SEQ_END); #define show_op(val) \ __print_symbolic(val, \ @@ -31,7 +36,9 @@ TRACE_DEFINE_ENUM(VIRTIO_VSOCK_OP_CREDIT_REQUEST); { VIRTIO_VSOCK_OP_SHUTDOWN, "SHUTDOWN" }, \ { VIRTIO_VSOCK_OP_RW, "RW" }, \ { VIRTIO_VSOCK_OP_CREDIT_UPDATE, "CREDIT_UPDATE" }, \ - { VIRTIO_VSOCK_OP_CREDIT_REQUEST, "CREDIT_REQUEST" }) + { VIRTIO_VSOCK_OP_CREDIT_REQUEST, "CREDIT_REQUEST" }, \ + { VIRTIO_VSOCK_OP_SEQ_BEGIN, "SEQ_BEGIN" }, \ + { VIRTIO_VSOCK_OP_SEQ_END, "SEQ_END" }) TRACE_EVENT(virtio_transport_alloc_pkt, TP_PROTO( @@ -40,7 +47,9 @@ TRACE_EVENT(virtio_transport_alloc_pkt, __u32 len, __u16 type, __u16 op, - __u32 flags + __u32 flags, + __u32 msg_len, + __u32 msg_id ), TP_ARGS( src_cid, src_port, @@ -48,7 +57,9 @@ TRACE_EVENT(virtio_transport_alloc_pkt, len, type, op, - flags + flags, + msg_len, + msg_id ), TP_STRUCT__entry( __field(__u32, src_cid) @@ -59,6 +70,8 @@ TRACE_EVENT(virtio_transport_alloc_pkt, __field(__u16, type) __field(__u16, op) __field(__u32, flags) + __field(__u32, msg_len) + __field(__u32, msg_id) ), TP_fast_assign( __entry->src_cid = src_cid; @@ -69,14 +82,18 @@ TRACE_EVENT(virtio_transport_alloc_pkt, __entry->type = type; __entry->op = op; __entry->flags = flags; + __entry->msg_len = msg_len; + __entry->msg_id = msg_id; ), - TP_printk("%u:%u -> %u:%u len=%u type=%s op=%s flags=%#x", + TP_printk("%u:%u -> %u:%u len=%u type=%s op=%s flags=%#x msg_len=%u msg_id=%u", __entry->src_cid, __entry->src_port, __entry->dst_cid, __entry->dst_port, __entry->len, show_type(__entry->type), show_op(__entry->op), - __entry->flags) + __entry->flags, + __entry->msg_len, + __entry->msg_id) ); TRACE_EVENT(virtio_transport_recv_pkt, @@ -88,7 +105,9 @@ TRACE_EVENT(virtio_transport_recv_pkt, __u16 op, __u32 flags, __u32 buf_alloc, - __u32 fwd_cnt + __u32 fwd_cnt, + __u32 msg_len, + __u32 msg_id ), TP_ARGS( src_cid, src_port, @@ -98,7 +117,9 @@ TRACE_EVENT(virtio_transport_recv_pkt, op, flags, buf_alloc, - fwd_cnt + fwd_cnt, + msg_len, + msg_id ), TP_STRUCT__entry( __field(__u32, src_cid) @@ -111,6 +132,8 @@ TRACE_EVENT(virtio_transport_recv_pkt, __field(__u32, flags) __field(__u32, buf_alloc) __field(__u32, fwd_cnt) + __field(__u32, msg_len) + __field(__u32, msg_id) ), TP_fast_assign( __entry->src_cid = src_cid; @@ -123,9 +146,10 @@ TRACE_EVENT(virtio_transport_recv_pkt, __entry->flags = flags; __entry->buf_alloc = buf_alloc; __entry->fwd_cnt = fwd_cnt; + __entry->msg_len = msg_len; + __entry->msg_id = msg_id; ), - TP_printk("%u:%u -> %u:%u len=%u type=%s op=%s flags=%#x " - "buf_alloc=%u fwd_cnt=%u", + TP_printk("%u:%u -> %u:%u len=%u type=%s op=%s flags=%#x buf_alloc=%u fwd_cnt=%u msg_len=%u msg_id=%u", __entry->src_cid, __entry->src_port, __entry->dst_cid, __entry->dst_port, __entry->len, @@ -133,7 +157,9 @@ TRACE_EVENT(virtio_transport_recv_pkt, show_op(__entry->op), __entry->flags, __entry->buf_alloc, - __entry->fwd_cnt) + __entry->fwd_cnt, + __entry->msg_len, + __entry->msg_id) ); #endif /* _TRACE_VSOCK_VIRTIO_TRANSPORT_COMMON_H */ diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c index 01a56c7da8bd..9e27c0c67ee2 100644 --- a/net/vmw_vsock/virtio_transport_common.c +++ b/net/vmw_vsock/virtio_transport_common.c @@ -47,6 +47,8 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info, { struct virtio_vsock_pkt *pkt; int err; + u32 msg_len = 0; + u32 msg_id = 0; pkt = kzalloc(sizeof(*pkt), GFP_KERNEL); if (!pkt) @@ -74,6 +76,14 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info, err = memcpy_from_msg(pkt->buf, info->msg, len); if (err) goto out; + + if (info->op == VIRTIO_VSOCK_OP_SEQ_BEGIN || + info->op == VIRTIO_VSOCK_OP_SEQ_END) { + struct virtio_vsock_seq_hdr *seq_hdr = pkt->buf; + + msg_len = le32_to_cpu(seq_hdr->msg_len); + msg_id = le32_to_cpu(seq_hdr->msg_id); + } } trace_virtio_transport_alloc_pkt(src_cid, src_port, @@ -81,7 +91,7 @@ virtio_transport_alloc_pkt(struct virtio_vsock_pkt_info *info, len, info->type, info->op, - info->flags); + info->flags, msg_len, msg_id); return pkt; @@ -1372,12 +1382,22 @@ void virtio_transport_recv_pkt(struct virtio_transport *t, struct vsock_sock *vsk; struct sock *sk; bool space_available; + u32 msg_len = 0; + u32 msg_id = 0; vsock_addr_init(&src, le64_to_cpu(pkt->hdr.src_cid), le32_to_cpu(pkt->hdr.src_port)); vsock_addr_init(&dst, le64_to_cpu(pkt->hdr.dst_cid), le32_to_cpu(pkt->hdr.dst_port)); + if (le16_to_cpu(pkt->hdr.op) == VIRTIO_VSOCK_OP_SEQ_BEGIN || + le16_to_cpu(pkt->hdr.op) == VIRTIO_VSOCK_OP_SEQ_END) { + struct virtio_vsock_seq_hdr *seq_hdr = pkt->buf; + + msg_len = le32_to_cpu(seq_hdr->msg_len); + msg_id = le32_to_cpu(seq_hdr->msg_id); + } + trace_virtio_transport_recv_pkt(src.svm_cid, src.svm_port, dst.svm_cid, dst.svm_port, le32_to_cpu(pkt->hdr.len), @@ -1385,7 +1405,8 @@ void virtio_transport_recv_pkt(struct virtio_transport *t, le16_to_cpu(pkt->hdr.op), le32_to_cpu(pkt->hdr.flags), le32_to_cpu(pkt->hdr.buf_alloc), - le32_to_cpu(pkt->hdr.fwd_cnt)); + le32_to_cpu(pkt->hdr.fwd_cnt), + msg_len, msg_id); if (!virtio_transport_valid_type(le16_to_cpu(pkt->hdr.type))) { (void)virtio_transport_reset_no_sock(t, pkt);