From patchwork Thu May 12 08:09:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 12847307 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 3243FC433F5 for ; Thu, 12 May 2022 08:22:17 +0000 (UTC) Received: from localhost ([::1]:53214 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1np45Q-0007RW-7o for qemu-devel@archiver.kernel.org; Thu, 12 May 2022 04:22:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:51264) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1np3tJ-0006im-Va for qemu-devel@nongnu.org; Thu, 12 May 2022 04:09:47 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:55122) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1np3tG-0002jL-0z for qemu-devel@nongnu.org; Thu, 12 May 2022 04:09:44 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1652342979; 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: content-transfer-encoding:content-transfer-encoding; bh=D4Y81qjH8MSsExj4wMPReLxNkeW1zeZZ0g8wiMOchS8=; b=NwsHd9J0OFgcQ3S1NfAzLszsRYJtCU4tmACaMIQHVveHwbh6Zk4almYwjBAWv59skJpdAL eRwM8lMV7Y4CgxjoKvgZgYGjs37F/Q4isO8m6tWjLYdtY+wd2zWGWoS801LKZ47O/6n3ip +2Us88Y4bcBtda2SxVbI9O6AeBxN+BU= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-34-kfyi6ehBNRCIMa8V8eL3Lg-1; Thu, 12 May 2022 04:09:36 -0400 X-MC-Unique: kfyi6ehBNRCIMa8V8eL3Lg-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id CD673803D46; Thu, 12 May 2022 08:09:35 +0000 (UTC) Received: from thinkpad.redhat.com (unknown [10.39.194.254]) by smtp.corp.redhat.com (Postfix) with ESMTP id 59A1840CF8F4; Thu, 12 May 2022 08:09:34 +0000 (UTC) From: Laurent Vivier To: qemu-devel@nongnu.org Cc: Laurent Vivier , Ralph Schmieder , Stefano Brivio , =?utf-8?q?Daniel_P_=2E_Berrang=C3=A9?= , Markus Armbruster Subject: [RFC PATCH v2 0/8] qapi: net: add unix socket type support to netdev backend Date: Thu, 12 May 2022 10:09:24 +0200 Message-Id: <20220512080932.735962-1-lvivier@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 Received-SPF: pass client-ip=170.10.133.124; envelope-from=lvivier@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 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" "-netdev socket" only supports inet sockets. It's not a complex task to add support for unix sockets, but the socket netdev parameters are not defined to manage well unix socket parameters. As discussed in: "socket.c added support for unix domain socket datagram transport" https://lore.kernel.org/qemu-devel/1C0E1BC5-904F-46B0-8044-68E43E67BE60@gmail.com/ This series adds support of unix socket type using SocketAddress QAPI structure. Two new netdev backends, "stream" and "dgram" are added, that are barely a copy of "socket" backend but they use the SocketAddress QAPI to provide socket parameters. And then they also implement unix sockets (TCP and UDP). Some examples of CLI syntax: for TCP: -netdev stream,id=socket0,addr.type=inet,addr.host=localhost,addr.port=1234 -netdev stream,id=socket0,server=off,addr.type=inet,addr.host=localhost,addr.port=1234 -netdev dgram,id=socket0,\ local.type=inet,local.host=localhost,local.port=1234,\ remote.type=inet,remote.host=localhost,remote.port=1235 for UNIX: -netdev stream,id=socket0,addr.type=unix,addr.path=/tmp/qemu0 -netdev stream,id=socket0,server=off,addr.type=unix,addr.path=/tmp/qemu0 -netdev dgram,id=socket0,\ local.type=unix,local.path=/tmp/qemu0,\ remote.type=unix,remote.path=/tmp/qemu1 for FD: -netdev stream,id=socket0,addr.type=fd,addr.str=4 -netdev stream,id=socket0,server=off,addr.type=fd,addr.str=5 -netdev dgram,id=socket0,local.type=fd,addr.str=4 v2: - use "stream" and "dgram" rather than "socket-ng,mode=stream" and ""socket-ng,mode=dgram" - extract code to bypass qemu_opts_parse_noisily() to a new patch - do not ignore EINVAL (Stefano) - fix "-net" option CC: Ralph Schmieder CC: Stefano Brivio CC: Daniel P. Berrangé CC: Markus Armbruster Laurent Vivier (7): net: introduce convert_host_port() qapi: net: introduce a way to bypass qemu_opts_parse_noisily() qapi: net: add stream and dgram netdevs net: stream: add unix socket net: dgram: make dgram_dst generic net: dgram: move mcast specific code from net_socket_fd_init_dgram() net: dgram: add unix socket Stefano Brivio (1): net: stream: Don't ignore EINVAL on netdev socket connection hmp-commands.hx | 2 +- include/qemu/sockets.h | 2 + net/clients.h | 6 + net/dgram.c | 706 +++++++++++++++++++++++++++++++++++++++++ net/hub.c | 2 + net/meson.build | 2 + net/net.c | 138 ++++++-- net/stream.c | 516 ++++++++++++++++++++++++++++++ qapi/net.json | 38 ++- 9 files changed, 1379 insertions(+), 33 deletions(-) create mode 100644 net/dgram.c create mode 100644 net/stream.c Reviewed-by: Stefano Brivio Tested-by: Stefano Brivio