From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 697ECC433E0 for ; Thu, 28 Jan 2021 17:04:37 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id E6C3F64E15 for ; Thu, 28 Jan 2021 17:04:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E6C3F64E15 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=virtualization-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id ACD6186224; Thu, 28 Jan 2021 17:04:36 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id RuamLmnykiTg; Thu, 28 Jan 2021 17:04:36 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by fraxinus.osuosl.org (Postfix) with ESMTP id 0217A844A7; Thu, 28 Jan 2021 17:04:35 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id DC612C0FA8; Thu, 28 Jan 2021 17:04:35 +0000 (UTC) Received: from whitealder.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 665D9C08A1 for ; Thu, 28 Jan 2021 17:04:35 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by whitealder.osuosl.org (Postfix) with ESMTP id 5428F864D4 for ; Thu, 28 Jan 2021 17:04:35 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from whitealder.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fuEilijQzPJZ for ; Thu, 28 Jan 2021 17:04:34 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by whitealder.osuosl.org (Postfix) with ESMTPS id 74B2D86E6B for ; Thu, 28 Jan 2021 17:04:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611853473; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=LvcQzCTMhw0EZfzlSb3F515FxbS4cvGqc8hLzWtIraw=; b=JcDnJh5pewXv5NoDV+Wsn4MLDtPKTQJHuCf1YH3OcwfNxXwsCoImJLW1YdIKyib2q8nluV a2hg3Pb7mAujnj0zj8AKS6UrscBXebqoLA06j/BJ9LDOVqJQ7WeUwy67X7YcuFrLIfDo97 dld42Mua92RJOIDALSNiLBW9n+aEwgc= Received: from mail-wr1-f71.google.com (mail-wr1-f71.google.com [209.85.221.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-287-P6B1LwvsNpWbMNTGZrVGiw-1; Thu, 28 Jan 2021 12:04:31 -0500 X-MC-Unique: P6B1LwvsNpWbMNTGZrVGiw-1 Received: by mail-wr1-f71.google.com with SMTP id n14so3446493wru.6 for ; Thu, 28 Jan 2021 09:04:31 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=LvcQzCTMhw0EZfzlSb3F515FxbS4cvGqc8hLzWtIraw=; b=Q03s7la/dY0OioEkDO4rKDgzItSwbIKDhZuNAYh70AMe+9FKRlwQhsFU19U+sBOjtH EI24Zch+Jn1PspZOKtA0UcgaxObv8uGsGVcJDylkW19OJ9oG7okc2JQ3xWXHV0BBxt2b ydgus+M5FWs0fjmMY5s8cQWro4IFqIcdXUWCiCmFKA0on4/8jNT+XA0mt1OksoX7bkMA sMgWrynTuq1o3BD098En0QoDVL9oTwt5UlLSca4CT4rsNQM03DnCJYo/o3rRQmiI+x/L O8BkB/sFxVvb9mTIEeAc8p3dt+VRdkQ2/ByNPAoCdv+XEx4zhtGPJ5gqkVRrASYUZjG+ YE3A== X-Gm-Message-State: AOAM533kSafbdb+uAFhFG5AfcD7yceML3Rc3hDRdvCP+PRUA9rG1i+hN sNYCxTeHente3izwdDLOCTopDcKN/Ceo95+fWuozXA9ElnaTmvlpunCyo9mWLaLYzl4lVz3xz3m zG4iGZVR3LNIdYPUKQef1w0mixfA3ibp6BX9EU2AlOA== X-Received: by 2002:adf:9148:: with SMTP id j66mr47597wrj.28.1611853470441; Thu, 28 Jan 2021 09:04:30 -0800 (PST) X-Google-Smtp-Source: ABdhPJyFXNXAEEeUISjmsj6o5JuE/Q8ctqnwUsP41thgGGDQLpC8xK5225WjWWJKnBOg3AVOH+RIYQ== X-Received: by 2002:adf:9148:: with SMTP id j66mr47572wrj.28.1611853470215; Thu, 28 Jan 2021 09:04:30 -0800 (PST) Received: from steredhat (host-79-34-249-199.business.telecomitalia.it. [79.34.249.199]) by smtp.gmail.com with ESMTPSA id v4sm8574382wrw.42.2021.01.28.09.04.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 28 Jan 2021 09:04:29 -0800 (PST) Date: Thu, 28 Jan 2021 18:04:26 +0100 From: Stefano Garzarella To: Arseny Krasnov Subject: Re: [RFC PATCH v3 05/13] af_vsock: rest of SEQPACKET support Message-ID: <20210128170426.522mpkocdd35bt2e@steredhat> References: <20210125110903.597155-1-arseny.krasnov@kaspersky.com> <20210125111321.598653-1-arseny.krasnov@kaspersky.com> MIME-Version: 1.0 In-Reply-To: <20210125111321.598653-1-arseny.krasnov@kaspersky.com> Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=sgarzare@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: Andra Paraschiv , kvm@vger.kernel.org, "Michael S. Tsirkin" , Jeff Vander Stoep , stsp2@yandex.ru, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, oxffffaa@gmail.com, netdev@vger.kernel.org, Stefan Hajnoczi , Colin Ian King , Jakub Kicinski , "David S. Miller" X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" On Mon, Jan 25, 2021 at 02:13:18PM +0300, Arseny Krasnov wrote: >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 >--- > net/vmw_vsock/af_vsock.c | 71 ++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 71 insertions(+) > >diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c >index 4600c1ec3bb3..bbc3c31085aa 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 || >@@ -459,6 +460,13 @@ int vsock_assign_transport(struct vsock_sock *vsk, struct vsock_sock *psk) > new_transport = transport_g2h; > else > new_transport = transport_h2g; >+ >+ if (sk->sk_type == SOCK_SEQPACKET) { I think you must also check that new_transport is not NULL. >+ if (!new_transport->seqpacket_seq_send_len || >+ !new_transport->seqpacket_seq_get_len || >+ !new_transport->seqpacket_dequeue) >+ return -ENODEV; I'm not sure about ENODEV is the better choice in this case, since the transport exists, but it doesn't support SOCK_SEQPACKET, so maybe is better ESOCKTNOSUPPORT. >+ } > break; > default: > return -ESOCKTNOSUPPORT; >@@ -684,6 +692,7 @@ 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); >@@ -1406,6 +1415,12 @@ static int vsock_stream_connect(struct socket *sock, struct sockaddr *addr, > return vsock_connect(sock, addr, addr_len, flags); > } > >+static int vsock_seqpacket_connect(struct socket *sock, struct sockaddr *addr, >+ int addr_len, int flags) >+{ >+ return vsock_connect(sock, addr, addr_len, flags); >+} >+ > static int vsock_accept(struct socket *sock, struct socket *newsock, int flags, > bool kern) > { >@@ -1633,6 +1648,16 @@ static int vsock_stream_setsockopt(struct socket *sock, > optlen); > } > >+static int vsock_seqpacket_setsockopt(struct socket *sock, >+ int level, >+ int optname, >+ sockptr_t optval, >+ unsigned int optlen) >+{ >+ return vsock_connectible_setsockopt(sock, level, optname, optval, >+ optlen); >+} >+ > static int vsock_connectible_getsockopt(struct socket *sock, > int level, int optname, > char __user *optval, >@@ -1713,6 +1738,15 @@ static int vsock_stream_getsockopt(struct socket *sock, > optlen); > } > >+static int vsock_seqpacket_getsockopt(struct socket *sock, >+ int level, int optname, >+ char __user *optval, >+ int __user *optlen) >+{ >+ return vsock_connectible_getsockopt(sock, level, optname, optval, >+ optlen); >+} >+ > static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, > size_t len) > { >@@ -1870,6 +1904,12 @@ static int vsock_stream_sendmsg(struct socket *sock, struct msghdr *msg, > return vsock_connectible_sendmsg(sock, msg, len); > } > >+static int vsock_seqpacket_sendmsg(struct socket *sock, struct msghdr *msg, >+ size_t len) >+{ >+ return vsock_connectible_sendmsg(sock, msg, len); >+} >+ > static int vsock_wait_data(struct sock *sk, struct wait_queue_entry *wait, > long timeout, > struct vsock_transport_recv_notify_data *recv_data, >@@ -2184,6 +2224,13 @@ vsock_stream_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, > return vsock_connectible_recvmsg(sock, msg, len, flags); > } > >+static int >+vsock_seqpacket_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, >+ int flags) >+{ >+ return vsock_connectible_recvmsg(sock, msg, len, flags); >+} >+ As I said, I think you don't need to implement all of this helpers and you can directly assign the vsock_connectible_* functions in the 'vsock_seqpacket_ops'. > static const struct proto_ops vsock_stream_ops = { > .family = PF_VSOCK, > .owner = THIS_MODULE, >@@ -2205,6 +2252,27 @@ 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_seqpacket_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_seqpacket_setsockopt, >+ .getsockopt = vsock_seqpacket_getsockopt, >+ .sendmsg = vsock_seqpacket_sendmsg, >+ .recvmsg = vsock_seqpacket_recvmsg, >+ .mmap = sock_no_mmap, >+ .sendpage = sock_no_sendpage, >+}; >+ > static int vsock_create(struct net *net, struct socket *sock, > int protocol, int kern) > { >@@ -2225,6 +2293,9 @@ 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; > } >-- >2.25.1 > _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization