From patchwork Wed Jun 14 12:53:20 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jeff Cody X-Patchwork-Id: 9786257 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 31F1B60325 for ; Wed, 14 Jun 2017 12:54:38 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1BAF6285E6 for ; Wed, 14 Jun 2017 12:54:38 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0F45028634; Wed, 14 Jun 2017 12:54:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id F2FA9285E6 for ; Wed, 14 Jun 2017 12:54:36 +0000 (UTC) Received: from localhost ([::1]:48504 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dL7oh-00042l-T1 for patchwork-qemu-devel@patchwork.kernel.org; Wed, 14 Jun 2017 08:54:35 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:42412) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dL7ne-0003x8-Ez for qemu-devel@nongnu.org; Wed, 14 Jun 2017 08:53:31 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dL7nd-0006Gc-GG for qemu-devel@nongnu.org; Wed, 14 Jun 2017 08:53:30 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33984) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dL7nZ-0006ES-0L; Wed, 14 Jun 2017 08:53:25 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 1DC0C4E4C6; Wed, 14 Jun 2017 12:53:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 1DC0C4E4C6 Authentication-Results: ext-mx09.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx09.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=jcody@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 1DC0C4E4C6 Received: from localhost (ovpn-116-115.phx2.redhat.com [10.3.116.115]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D7E8586F57; Wed, 14 Jun 2017 12:53:22 +0000 (UTC) From: Jeff Cody To: qemu-devel@nongnu.org Date: Wed, 14 Jun 2017 08:53:20 -0400 Message-Id: <0789ab6c32814ab4b6896707d378804bd4424c65.1497444637.git.jcody@redhat.com> In-Reply-To: References: In-Reply-To: References: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Wed, 14 Jun 2017 12:53:23 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 2/2] block/iscsi: enable filename option and parsing 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: kwolf@redhat.com, rjones@redhat.com, qemu-block@nongnu.org, mreitz@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP When enabling option parsing and blockdev-add for iscsi, we removed the 'filename' option. Unfortunately, this was a bit optimistic, as previous versions of QEMU allowed the use of the option in backing filenames via json. This means that without parsing this option, we cannot open existing images that used to work fine. See bug: https://bugzilla.redhat.com/show_bug.cgi?id=1457088 Tested-by: Richard W.M. Jones Signed-off-by: Jeff Cody --- block/iscsi.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/block/iscsi.c b/block/iscsi.c index 5daa201..b5f7a22 100644 --- a/block/iscsi.c +++ b/block/iscsi.c @@ -1732,6 +1732,10 @@ static QemuOptsList runtime_opts = { .name = "timeout", .type = QEMU_OPT_NUMBER, }, + { + .name = "filename", + .type = QEMU_OPT_STRING, + }, { /* end of list */ } }, }; @@ -1747,12 +1751,27 @@ static int iscsi_open(BlockDriverState *bs, QDict *options, int flags, char *initiator_name = NULL; QemuOpts *opts; Error *local_err = NULL; - const char *transport_name, *portal, *target; + const char *transport_name, *portal, *target, *filename; #if LIBISCSI_API_VERSION >= (20160603) enum iscsi_transport_type transport; #endif int i, ret = 0, timeout = 0, lun; + /* If we are given a filename, parse the filename, with precedence given to + * filename encoded options */ + filename = qdict_get_try_str(options, "filename"); + if (filename) { + error_report("Warning: 'filename' option specified. " + "This is an unsupported option, and may be deprecated " + "in the future"); + iscsi_parse_filename(filename, options, &local_err); + if (local_err) { + ret = -EINVAL; + error_propagate(errp, local_err); + goto exit; + } + } + opts = qemu_opts_create(&runtime_opts, NULL, 0, &error_abort); qemu_opts_absorb_qdict(opts, options, &local_err); if (local_err) { @@ -1967,6 +1986,7 @@ out: } memset(iscsilun, 0, sizeof(IscsiLun)); } +exit: return ret; }