From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:50332) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dLGGH-0008Nc-1F for qemu-devel@nongnu.org; Wed, 14 Jun 2017 17:55:38 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dLGGG-0004mx-5y for qemu-devel@nongnu.org; Wed, 14 Jun 2017 17:55:37 -0400 From: Jeff Cody Date: Wed, 14 Jun 2017 17:55:26 -0400 Message-Id: <20170614215526.9218-3-jcody@redhat.com> In-Reply-To: <20170614215526.9218-1-jcody@redhat.com> References: <20170614215526.9218-1-jcody@redhat.com> Subject: [Qemu-devel] [PULL 2/2] block/iscsi: enable filename option and parsing List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: peter.maydell@linaro.org, jcody@redhat.com, qemu-devel@nongnu.org, stefanha@redhat.com 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 Message-id: 0789ab6c32814ab4b6896707d378804bd4424c65.1497444637.git.jcody@redhat.com 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; } -- 2.9.3