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From 153d5ee0b61926664684a28cdfc982f956c329a2 Mon Sep 17 00:00:00 2001
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Message-Id: <153d5ee0b61926664684a28cdfc982f956c329a2.1418766606.git.jen@redhat.com>
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In-Reply-To: <6f81b4847eb68ebdf54a8f1a771e19d112d74152.1418766606.git.jen@redhat.com>
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References: <6f81b4847eb68ebdf54a8f1a771e19d112d74152.1418766606.git.jen@redhat.com>
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From: Fam Zheng <famz@redhat.com>
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Date: Thu, 4 Dec 2014 00:05:07 -0600
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Subject: [CHANGE 13/31] vmdk: do not try opening a file as both image and
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descriptor
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To: rhvirt-patches@redhat.com,
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jen@redhat.com
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RH-Author: Fam Zheng <famz@redhat.com>
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Message-id: <1417651524-18041-14-git-send-email-famz@redhat.com>
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Patchwork-id: 62686
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O-Subject: [RHEL-7.1 qemu-kvm PATCH v5 13/30] vmdk: do not try opening a file as both image and descriptor
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Bugzilla: 1134251
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Markus Armbruster <armbru@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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From: Paolo Bonzini <pbonzini@redhat.com>
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This prepares for propagating errors from vmdk_open_sparse and
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vmdk_open_desc_file up to the caller of vmdk_open.
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Reviewed-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 37f09e5e3d206e7c555d28a7755cecfa137dad22)
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Signed-off-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Jeff E. Nelson <jen@redhat.com>
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---
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block/vmdk.c | 22 +++++++++++++++-------
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tests/qemu-iotests/059.out | 4 ++--
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2 files changed, 17 insertions(+), 9 deletions(-)
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diff --git a/block/vmdk.c b/block/vmdk.c
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index 458bceb..94f7dae 100644
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--- a/block/vmdk.c
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+++ b/block/vmdk.c
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@@ -887,20 +887,28 @@ static int vmdk_open(BlockDriverState *bs, QDict *options, int flags,
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char *buf = NULL;
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int ret;
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BDRVVmdkState *s = bs->opaque;
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+ uint32_t magic;
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buf = vmdk_read_desc(bs->file, 0, errp);
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if (!buf) {
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return -EINVAL;
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}
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- if (vmdk_open_sparse(bs, bs->file, flags, buf, errp) == 0) {
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- s->desc_offset = 0x200;
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- } else {
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- ret = vmdk_open_desc_file(bs, flags, buf, errp);
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- if (ret) {
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- goto fail;
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- }
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+ magic = ldl_be_p(buf);
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+ switch (magic) {
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+ case VMDK3_MAGIC:
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+ case VMDK4_MAGIC:
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+ ret = vmdk_open_sparse(bs, bs->file, flags, buf, errp);
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+ s->desc_offset = 0x200;
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+ break;
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+ default:
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+ ret = vmdk_open_desc_file(bs, flags, buf, errp);
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+ break;
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}
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+ if (ret) {
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+ goto fail;
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+ }
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+
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/* try to open parent images, if exist */
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ret = vmdk_parent_open(bs);
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if (ret) {
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diff --git a/tests/qemu-iotests/059.out b/tests/qemu-iotests/059.out
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index f4ca52d..0220774 100644
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--- a/tests/qemu-iotests/059.out
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+++ b/tests/qemu-iotests/059.out
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@@ -8,7 +8,7 @@ no file open, try 'help open'
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
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L2 table size too big
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-qemu-io: can't open device TEST_DIR/t.vmdk: Could not open 'TEST_DIR/t.vmdk': Wrong medium type
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+qemu-io: can't open device TEST_DIR/t.vmdk: Could not open 'TEST_DIR/t.vmdk': Invalid argument
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no file open, try 'help open'
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=== Testing too big L1 table size ===
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@@ -2046,7 +2046,7 @@ RW 12582912 VMFS "dummy.IMGFMT" 1
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=== Testing truncated sparse ===
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Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=107374182400
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qemu-img: File truncated, expecting at least 13172736 bytes
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-qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Could not open 'TEST_DIR/t.IMGFMT': Wrong medium type
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+qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Could not open 'TEST_DIR/t.IMGFMT': Invalid argument
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=== Testing version 3 ===
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image: TEST_DIR/iotest-version3.IMGFMT
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--
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2.1.0
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