On Wed, Feb 17, 2016 at 02:40:02PM +0300, Olga Krishtal wrote:
> In case of ploop volume, target path of the volume is the path to the
> directory that contains image file named root.hds and DiskDescriptor.xml.
> While using uploadVol and downloadVol callbacks we need to open root.hds
> itself. To accomplish this goal we must change path from
> path/to/ploop directory to path/to/ploop/root.hds
>
> In case of .uploadVol, we have to additionaly update DiskDescriptor.xml
>
> Signed-off-by: Olga Krishtal <okrishtal@xxxxxxxxxxxxx>
> ---
> src/storage/storage_backend.c | 66 +++++++++++++++++++++++++++++++++++++++++--
> 1 file changed, 64 insertions(+), 2 deletions(-)
>
> diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c
> index 9f0e020..ac44fdf 100644
> --- a/src/storage/storage_backend.c
> +++ b/src/storage/storage_backend.c
> @@ -2023,12 +2023,63 @@ virStorageBackendVolUploadLocal(virConnectPtr conn ATTRIBUTE_UNUSED,
> unsigned long long len,
> unsigned int flags)
> {
> + char *path = NULL;
> + char *target_path = vol->target.path;
> + int ret;
> + virCommandPtr cmd = NULL;
> + char *create_tool = NULL;
> +
> virCheckFlags(0, -1);
>
> /* Not using O_CREAT because the file is required to already exist at
> * this point */
> - return virFDStreamOpenBlockDevice(stream, vol->target.path,
> + if (vol->target.format != VIR_STORAGE_FILE_PLOOP) {
> + return virFDStreamOpenBlockDevice(stream, target_path,
> offset, len, O_WRONLY);
> + } else {
Looking at the last patch, it seems a volume could be detected as
VIR_STORAGE_FILE_PLOOP if it's a disk image matching the magic,
but this code assumes it's a directory with "root.hds" image and the
XML.
> + if (virAsprintf(&path, "%s/root.hds", vol->target.path) < 0)
> + return -1;
I thought the target.path was already pointing to the image, not
directory.
Jan
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