From patchwork Tue Aug 29 00:13:43 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Roth X-Patchwork-Id: 806892 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3xh9fw3Fbmz9sP5 for ; Tue, 29 Aug 2017 11:15:20 +1000 (AEST) Received: from localhost ([::1]:42224 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmV7e-0003T6-AP for incoming@patchwork.ozlabs.org; Mon, 28 Aug 2017 21:15:18 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49228) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dmUD1-00020W-1O for qemu-devel@nongnu.org; Mon, 28 Aug 2017 20:16:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dmUCx-0006Nm-Rq for qemu-devel@nongnu.org; Mon, 28 Aug 2017 20:16:46 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:58369 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dmUCx-0006NS-Ke for qemu-devel@nongnu.org; Mon, 28 Aug 2017 20:16:43 -0400 Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v7T0E8J5099513 for ; Mon, 28 Aug 2017 20:16:43 -0400 Received: from e16.ny.us.ibm.com (e16.ny.us.ibm.com [129.33.205.206]) by mx0b-001b2d01.pphosted.com with ESMTP id 2cmr22ykuc-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Mon, 28 Aug 2017 20:16:43 -0400 Received: from localhost by e16.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Mon, 28 Aug 2017 20:16:41 -0400 Received: from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com [9.57.199.107]) by b01cxnp22035.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v7T0GdYZ32309280; Tue, 29 Aug 2017 00:16:40 GMT Received: from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id F0BE712404E; Mon, 28 Aug 2017 20:14:00 -0400 (EDT) Received: from localhost (unknown [9.80.85.217]) by b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP id C3276124044; Mon, 28 Aug 2017 20:14:00 -0400 (EDT) From: Michael Roth To: qemu-devel@nongnu.org Date: Mon, 28 Aug 2017 19:13:43 -0500 X-Mailer: git-send-email 2.7.4 In-Reply-To: <1503965694-10794-1-git-send-email-mdroth@linux.vnet.ibm.com> References: <1503965694-10794-1-git-send-email-mdroth@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17082900-0024-0000-0000-000002C6D2EA X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007630; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000226; SDB=6.00909028; UDB=6.00455849; IPR=6.00689279; BA=6.00005557; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00016909; XFM=3.00000015; UTC=2017-08-29 00:16:42 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17082900-0025-0000-0000-0000453E639C Message-Id: <1503965694-10794-9-git-send-email-mdroth@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-08-28_13:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=1 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000 definitions=main-1708290001 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH 08/79] migration: setup bi-directional I/O channel for exec: protocol X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-stable@nongnu.org, Juan Quintela Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: "Daniel P. Berrange" Historically the migration data channel has only needed to be unidirectional. Thus the 'exec:' protocol was requesting an I/O channel with O_RDONLY on incoming side, and O_WRONLY on the outgoing side. This is fine for classic migration, but if you then try to run TLS over it, this fails because the TLS handshake requires a bi-directional channel. Signed-off-by: Daniel P. Berrange Reviewed-by: Juan Quintela Signed-off-by: Juan Quintela (cherry picked from commit 062d81f0e968fe1597474735f3ea038065027372) Signed-off-by: Michael Roth --- migration/exec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/migration/exec.c b/migration/exec.c index 9157721..aba9089 100644 --- a/migration/exec.c +++ b/migration/exec.c @@ -32,7 +32,7 @@ void exec_start_outgoing_migration(MigrationState *s, const char *command, Error trace_migration_exec_outgoing(command); ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, - O_WRONLY, + O_RDWR, errp)); if (!ioc) { return; @@ -59,7 +59,7 @@ void exec_start_incoming_migration(const char *command, Error **errp) trace_migration_exec_incoming(command); ioc = QIO_CHANNEL(qio_channel_command_new_spawn(argv, - O_RDONLY, + O_RDWR, errp)); if (!ioc) { return;