From patchwork Fri Jul 22 18:56:47 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Vivier X-Patchwork-Id: 12926762 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 67868C43334 for ; Fri, 22 Jul 2022 19:01:45 +0000 (UTC) Received: from localhost ([::1]:41802 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oExuC-0000OT-GE for qemu-devel@archiver.kernel.org; Fri, 22 Jul 2022 15:01:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:37424) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oExpt-0002Vz-Pj for qemu-devel@nongnu.org; Fri, 22 Jul 2022 14:57:17 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:22702) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oExpp-0008AZ-EZ for qemu-devel@nongnu.org; Fri, 22 Jul 2022 14:57:17 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1658516231; 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=org5R1fbVZ9sjwUCLdC6TOoP2ve+SP+bMIKzqDW8NC4=; b=fDuaogsPT4hIXmxlRzbKbZ8rGaWftVA53/GFbASl+tnqY/aKq5xIh7KaoFt7C/5lNmwFbD 7YA0KQf7ozKPExb8oN7jCiMWtJgvQtGwUCOZ+VacFLqwnmLwrH1ebebNt/b4gwOoXUynkz ptZlJM5TuVNi62k11LjGFJLbAb2u73s= 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-612-zcsi9-czOz-eCt5cNU-luQ-1; Fri, 22 Jul 2022 14:57:04 -0400 X-MC-Unique: zcsi9-czOz-eCt5cNU-luQ-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 75504101A58E; Fri, 22 Jul 2022 18:57:04 +0000 (UTC) Received: from thinkpad.redhat.com (unknown [10.39.194.216]) by smtp.corp.redhat.com (Postfix) with ESMTP id 761582026D64; Fri, 22 Jul 2022 18:57:02 +0000 (UTC) From: Laurent Vivier To: qemu-devel@nongnu.org Cc: Laurent Vivier , Thomas Huth , Paolo Bonzini , Markus Armbruster , Eric Blake , Jason Wang , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , "Dr. David Alan Gilbert" , Ralph Schmieder , Stefano Brivio Subject: [PATCH v6 00/14] qapi: net: add unix socket type support to netdev backend Date: Fri, 22 Jul 2022 20:56:47 +0200 Message-Id: <20220722185701.300449-1-lvivier@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 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: -21 X-Spam_score: -2.2 X-Spam_bar: -- X-Spam_report: (-2.2 / 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_NONE=-0.0001, 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 v7: - add qtests - update parameters table in net.json - update socket_uri() and socket_parse() v6: - s/netdev option/-netdev option/ PATCH 4 - s/ / / - update @NetdevStreamOptions and @NetdevDgramOptions comments - update PATCH 4 description message - add missing return in error case for unix stream socket - split socket_uri() patch: move and rename, then change content v5: - remove RFC prefix - put the change of net_client_parse() into its own patch (exit() in the function) - update comments regarding netdev_is_modern() and netdev_parse_modern() - update error case in net_stream_server_init() - update qemu-options.hx with unix type - fix HMP "info network" with unix protocol/server side. v4: - net_client_parse() fails with exit() rather than with return. - keep "{ 'name': 'vmnet-host', 'if': 'CONFIG_VMNET' }" on its own line in qapi/net.json - add a comment in qapi/net.json about parameters usage - move netdev_is_modern() check to qemu_init() - in netdev_is_modern(), check for JSON and use qemu_opts_do_parse() to parse parameters and detect type value. - add a blank line after copyright comment v3: - remove support of "-net" for dgram and stream. They are only supported with "-netdev" option. - use &error_fatal directly in net_client_inits() - update qemu-options.hx - move to QIO for stream socket 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 (13): net: introduce convert_host_port() net: remove the @errp argument of net_client_inits() net: simplify net_client_parse() error management 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 qemu-sockets: move and rename SocketAddress_to_str() qemu-sockets: update socket_uri() and socket_parse() to be consistent net: stream: move to QIO tests/qtest: netdev: test stream and dgram backends Stefano Brivio (1): net: stream: Don't ignore EINVAL on netdev socket connection hmp-commands.hx | 2 +- include/net/net.h | 6 +- include/qemu/sockets.h | 4 +- monitor/hmp-cmds.c | 23 +- net/clients.h | 6 + net/dgram.c | 707 ++++++++++++++++++++++++++++++++++++ net/hub.c | 2 + net/meson.build | 2 + net/net.c | 169 ++++++--- net/stream.c | 376 +++++++++++++++++++ qapi/net.json | 63 +++- qemu-options.hx | 14 + softmmu/vl.c | 16 +- tests/qtest/meson.build | 1 + tests/qtest/netdev-socket.c | 322 ++++++++++++++++ util/qemu-sockets.c | 25 ++ 16 files changed, 1656 insertions(+), 82 deletions(-) create mode 100644 net/dgram.c create mode 100644 net/stream.c create mode 100644 tests/qtest/netdev-socket.c