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=-16.0 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 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 28E1CC48BCD for ; Wed, 9 Jun 2021 14:48:37 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 E9C87613B6 for ; Wed, 9 Jun 2021 14:48:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E9C87613B6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:47962 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lqzVU-0001jH-5R for qemu-devel@archiver.kernel.org; Wed, 09 Jun 2021 10:48:36 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44596) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lqzSo-0003HT-Ee for qemu-devel@nongnu.org; Wed, 09 Jun 2021 10:45:50 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:24797) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lqzSm-0005Sz-Hb for qemu-devel@nongnu.org; Wed, 09 Jun 2021 10:45:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1623249947; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=0HyOa6ltjbaqEp6S+XfeNEi/Q5ntfEuMy7rznJ97OGI=; b=Dj19fdnAuDAG5Vjf5jioqV8KsyfK1igwnRCXpeW3kDoUvdiNPL0QkCdHqIM5lP94BtOsxd 3utpBRt15aNlCje0MZO/jtNlxcLat4NiAMfBpxGCjkByjWiCSoQRAWtHdnZ2HeSe6IMnMM v6URvYcmzfR/wQ9nUBMD/O71tyWrpYE= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-212-ckR107n2PJeinN99C32T4A-1; Wed, 09 Jun 2021 10:45:46 -0400 X-MC-Unique: ckR107n2PJeinN99C32T4A-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 60C8E1934104; Wed, 9 Jun 2021 14:45:45 +0000 (UTC) Received: from dgilbert-t580.localhost (ovpn-113-168.ams2.redhat.com [10.36.113.168]) by smtp.corp.redhat.com (Postfix) with ESMTP id E35B11002EF0; Wed, 9 Jun 2021 14:45:40 +0000 (UTC) From: "Dr. David Alan Gilbert (git)" To: qemu-devel@nongnu.org, huangy81@chinatelecom.cn, peterx@redhat.com, lizhijian@cn.fujitsu.com, leobras.c@gmail.com, pabeni@redhat.com Subject: [PULL 7/9] sockets: Support multipath TCP Date: Wed, 9 Jun 2021 15:45:10 +0100 Message-Id: <20210609144512.211746-8-dgilbert@redhat.com> In-Reply-To: <20210609144512.211746-1-dgilbert@redhat.com> References: <20210609144512.211746-1-dgilbert@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dgilbert@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=dgilbert@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.199, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: "Dr. David Alan Gilbert" Multipath TCP allows combining multiple interfaces/routes into a single socket, with very little work for the user/admin. It's enabled by 'mptcp' on most socket addresses: ./qemu-system-x86_64 -nographic -incoming tcp:0:4444,mptcp Signed-off-by: Dr. David Alan Gilbert Message-Id: <20210421112834.107651-6-dgilbert@redhat.com> Acked-by: Markus Armbruster Reviewed-by: Daniel P. Berrangé Signed-off-by: Dr. David Alan Gilbert --- io/dns-resolver.c | 4 ++++ qapi/sockets.json | 5 ++++- util/qemu-sockets.c | 23 +++++++++++++++++++++++ 3 files changed, 31 insertions(+), 1 deletion(-) diff --git a/io/dns-resolver.c b/io/dns-resolver.c index 743a0efc87..a5946a93bf 100644 --- a/io/dns-resolver.c +++ b/io/dns-resolver.c @@ -122,6 +122,10 @@ static int qio_dns_resolver_lookup_sync_inet(QIODNSResolver *resolver, .ipv4 = iaddr->ipv4, .has_ipv6 = iaddr->has_ipv6, .ipv6 = iaddr->ipv6, +#ifdef IPPROTO_MPTCP + .has_mptcp = iaddr->has_mptcp, + .mptcp = iaddr->mptcp, +#endif }; (*addrs)[i] = newaddr; diff --git a/qapi/sockets.json b/qapi/sockets.json index 2e83452797..735eb4abb5 100644 --- a/qapi/sockets.json +++ b/qapi/sockets.json @@ -57,6 +57,8 @@ # @keep-alive: enable keep-alive when connecting to this socket. Not supported # for passive sockets. (Since 4.2) # +# @mptcp: enable multi-path TCP. (Since 6.1) +# # Since: 1.3 ## { 'struct': 'InetSocketAddress', @@ -66,7 +68,8 @@ '*to': 'uint16', '*ipv4': 'bool', '*ipv6': 'bool', - '*keep-alive': 'bool' } } + '*keep-alive': 'bool', + '*mptcp': { 'type': 'bool', 'if': 'defined(IPPROTO_MPTCP)' } } } ## # @UnixSocketAddress: diff --git a/util/qemu-sockets.c b/util/qemu-sockets.c index 2463c49773..c415c342c1 100644 --- a/util/qemu-sockets.c +++ b/util/qemu-sockets.c @@ -278,6 +278,11 @@ static int inet_listen_saddr(InetSocketAddress *saddr, /* create socket + bind/listen */ for (e = res; e != NULL; e = e->ai_next) { +#ifdef IPPROTO_MPTCP + if (saddr->has_mptcp && saddr->mptcp) { + e->ai_protocol = IPPROTO_MPTCP; + } +#endif getnameinfo((struct sockaddr*)e->ai_addr,e->ai_addrlen, uaddr,INET6_ADDRSTRLEN,uport,32, NI_NUMERICHOST | NI_NUMERICSERV); @@ -456,6 +461,13 @@ int inet_connect_saddr(InetSocketAddress *saddr, Error **errp) for (e = res; e != NULL; e = e->ai_next) { error_free(local_err); local_err = NULL; + +#ifdef IPPROTO_MPTCP + if (saddr->has_mptcp && saddr->mptcp) { + e->ai_protocol = IPPROTO_MPTCP; + } +#endif + sock = inet_connect_addr(saddr, e, &local_err); if (sock >= 0) { break; @@ -687,6 +699,17 @@ int inet_parse(InetSocketAddress *addr, const char *str, Error **errp) } addr->has_keep_alive = true; } +#ifdef IPPROTO_MPTCP + begin = strstr(optstr, ",mptcp"); + if (begin) { + if (inet_parse_flag("mptcp", begin + strlen(",mptcp"), + &addr->mptcp, errp) < 0) + { + return -1; + } + addr->has_mptcp = true; + } +#endif return 0; } -- 2.31.1