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vmdk: Use bdrv_dirname() for relative extent paths 

This makes iotest 033 pass with e.g. subformat=monolithicFlat.  It also
turns a former error in 059 into success.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190815153638.4600-3-mreitz@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2019-08-15 17:36:33 +02:00
parent f158ffdba6
commit cdc0dd2586
3 changed files with 42 additions and 23 deletions
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54
block/vmdk.c
View File

@ -1076,8 +1076,7 @@ static const char *next_line(const char *s)
}
static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
const char *desc_file_path, QDict *options,
Error **errp)
QDict *options, Error **errp)
{
int ret;
int matches;
@ -1087,6 +1086,7 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
const char *p, *np;
int64_t sectors = 0;
int64_t flat_offset;
char *desc_file_dir = NULL;
char *extent_path;
BdrvChild *extent_file;
BDRVVmdkState *s = bs->opaque;
@ -1130,16 +1130,23 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
continue;
}
if (!path_is_absolute(fname) && !path_has_protocol(fname) &&
!desc_file_path[0])
{
bdrv_refresh_filename(bs->file->bs);
error_setg(errp, "Cannot use relative extent paths with VMDK "
"descriptor file '%s'", bs->file->bs->filename);
return -EINVAL;
}
if (path_is_absolute(fname)) {
extent_path = g_strdup(fname);
} else {
if (!desc_file_dir) {
desc_file_dir = bdrv_dirname(bs->file->bs, errp);
if (!desc_file_dir) {
bdrv_refresh_filename(bs->file->bs);
error_prepend(errp, "Cannot use relative paths with VMDK "
"descriptor file '%s': ",
bs->file->bs->filename);
ret = -EINVAL;
goto out;
}
}
extent_path = path_combine(desc_file_path, fname);
extent_path = g_strconcat(desc_file_dir, fname, NULL);
}
ret = snprintf(extent_opt_prefix, 32, "extents.%d", s->num_extents);
assert(ret < 32);
@ -1149,7 +1156,8 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
g_free(extent_path);
if (local_err) {
error_propagate(errp, local_err);
return -EINVAL;
ret = -EINVAL;
goto out;
}
/* save to extents array */
@ -1160,7 +1168,7 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
0, 0, 0, 0, 0, &extent, errp);
if (ret < 0) {
bdrv_unref_child(bs, extent_file);
return ret;
goto out;
}
extent->flat_start_offset = flat_offset << 9;
} else if (!strcmp(type, "SPARSE") || !strcmp(type, "VMFSSPARSE")) {
@ -1175,24 +1183,27 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
g_free(buf);
if (ret) {
bdrv_unref_child(bs, extent_file);
return ret;
goto out;
}
extent = &s->extents[s->num_extents - 1];
} else if (!strcmp(type, "SESPARSE")) {
ret = vmdk_open_se_sparse(bs, extent_file, bs->open_flags, errp);
if (ret) {
bdrv_unref_child(bs, extent_file);
return ret;
goto out;
}
extent = &s->extents[s->num_extents - 1];
} else {
error_setg(errp, "Unsupported extent type '%s'", type);
bdrv_unref_child(bs, extent_file);
return -ENOTSUP;
ret = -ENOTSUP;
goto out;
}
extent->type = g_strdup(type);
}
return 0;
ret = 0;
goto out;
invalid:
np = next_line(p);
@ -1201,7 +1212,11 @@ invalid:
np--;
}
error_setg(errp, "Invalid extent line: %.*s", (int)(np - p), p);
return -EINVAL;
ret = -EINVAL;
out:
g_free(desc_file_dir);
return ret;
}
static int vmdk_open_desc_file(BlockDriverState *bs, int flags, char *buf,
@ -1228,8 +1243,7 @@ static int vmdk_open_desc_file(BlockDriverState *bs, int flags, char *buf,
}
s->create_type = g_strdup(ct);
s->desc_offset = 0;
ret = vmdk_parse_extents(buf, bs, bs->file->bs->exact_filename, options,
errp);
ret = vmdk_parse_extents(buf, bs, options, errp);
exit:
return ret;
}

7
tests/qemu-iotests/059
View File

@ -114,9 +114,12 @@ $QEMU_IMG convert -f qcow2 -O vmdk -o subformat=streamOptimized "$TEST_IMG.qcow2
echo
echo "=== Testing monolithicFlat with internally generated JSON file name ==="
# Should work, because bdrv_dirname() works fine with blkdebug
IMGOPTS="subformat=monolithicFlat" _make_test_img 64M
$QEMU_IO -c "open -o driver=$IMGFMT,file.driver=blkdebug,file.image.filename=$TEST_IMG,file.inject-error.0.event=read_aio" 2>&1 \
| _filter_testdir | _filter_imgfmt
$QEMU_IO -c "open -o driver=$IMGFMT,file.driver=blkdebug,file.image.filename=$TEST_IMG,file.inject-error.0.event=read_aio" \
-c info \
2>&1 \
| _filter_testdir | _filter_imgfmt | _filter_img_info
_cleanup_test_img
echo

4
tests/qemu-iotests/059.out
View File

@ -2050,7 +2050,9 @@ wrote 512/512 bytes at offset 10240
=== Testing monolithicFlat with internally generated JSON file name ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
qemu-io: can't open: Cannot use relative extent paths with VMDK descriptor file 'json:{"image": {"driver": "file", "filename": "TEST_DIR/t.IMGFMT"}, "driver": "blkdebug", "inject-error.0.event": "read_aio"}'
format name: IMGFMT
cluster size: 0 bytes
vm state offset: 0 bytes
=== Testing version 3 ===
image: TEST_DIR/iotest-version3.IMGFMT