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authorMax Reitz <mreitz@redhat.com>2014-12-03 14:57:22 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2014-12-12 13:14:10 +0000
commit5c98415b2a2fde5739aefe51793f969ce8bb2758 (patch)
tree9a9b7acd93caa089341164c00f6898ebfff375f7 /block
parentebd9fbd7e102c533143c2c8372312b75c2b2678a (diff)
vmdk: Fix error for JSON descriptor file names
If vmdk blindly tries to use path_combine() using bs->file->filename as the base file name, this will result in a bad error message for JSON file names when calling bdrv_open(). It is better to only try bs->file->exact_filename; if that is empty, bs->file->filename will be useless for path_combine() and an error should be emitted (containing bs->file->filename because desc_file_path (which is bs->file->exact_filename) is empty). Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Message-id: 1417615043-26174-2-git-send-email-mreitz@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/vmdk.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/block/vmdk.c b/block/vmdk.c
index 65af414f3c..bfff900ba6 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -833,6 +833,14 @@ static int vmdk_parse_extents(const char *desc, BlockDriverState *bs,
goto next_line;
}
+ if (!path_is_absolute(fname) && !path_has_protocol(fname) &&
+ !desc_file_path[0])
+ {
+ error_setg(errp, "Cannot use relative extent paths with VMDK "
+ "descriptor file '%s'", bs->file->filename);
+ return -EINVAL;
+ }
+
path_combine(extent_path, sizeof(extent_path),
desc_file_path, fname);
extent_file = NULL;
@@ -909,7 +917,7 @@ 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->filename, errp);
+ ret = vmdk_parse_extents(buf, bs, bs->file->exact_filename, errp);
exit:
return ret;
}