On Mon, Mar 11, 2019 at 11:35 PM Nir Soffer <nir...@gmail.com> wrote:

> Commit 2b4bd07e0a22 (Add check for params, nparams being a dictionary)
> changed the way the optional params argument is treated. If
> libvirt.virDomain.blockCopy() is called without specifying params,
> params is None, and the call will fail with:
>
>     TypeError: block params must be a dictionary
>
> This is wrong as params is defined as kwarg, breaking existing libvirt
> users like oVirt. Add a check for Py_None, so we accept either a dict or
> None and fail with TypeError with anything else.
>
> Resolves: https://bugzilla.redhat.com/1687114
>
> Signed-off-by: Nir Soffer <nsof...@redhat.com>
> ---
>  libvirt-override.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libvirt-override.c b/libvirt-override.c
> index 857c018..c5e2908 100644
> --- a/libvirt-override.c
> +++ b/libvirt-override.c
> @@ -8835,11 +8835,11 @@ libvirt_virDomainBlockCopy(PyObject *self
> ATTRIBUTE_UNUSED,
>          if (virPyDictToTypedParams(pyobj_dict, &params, &nparams,
>                                     virPyDomainBlockCopyParams,
>
> VIR_N_ELEMENTS(virPyDomainBlockCopyParams)) < 0) {
>              return NULL;
>          }
> -    } else {
> +    } else if (pyobj_dict != Py_None) {
>          PyErr_Format(PyExc_TypeError, "block params must be a
> dictionary");
>          return NULL;
>      }
>
>      dom = (virDomainPtr) PyvirDomain_Get(pyobj_dom);
> --
> 2.17.2
>
>
Tested with oVirt master and qemu master, live storage migration completed
successfully.

Nir
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