Re: [PATCH 1/3] hyperv: Fix hypervInitConnection error reporting

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On Tue, Oct 03, 2017 at 11:04:56AM +0200, Ladi Prosek wrote:
> "%s is not a Hyper-V server" is not a correct generalization of all possible
> error conditions of hypervEnumAndPull. For example:
> 
>   $ virsh --connect hyperv://localhost/?transport=http
>   Enter username for localhost [administrator]:
>   Enter administrator's password for localhost: <enters incorrect password>
>   error: failed to connect to the hypervisor
>   error: internal error: localhost is not a Hyper-V server
> 
> This commit fixes hypervEnumAndPull to set a meaningful internal error on all
> error paths and removes the general virReportError.
> 
> The same scenario with the fix:
> 
>   $ virsh --connect hyperv://localhost/?transport=http
>   Enter username for localhost [administrator]:
>   Enter administrator's password for localhost: <enters incorrect password>
>   error: failed to connect to the hypervisor
>   error: internal error: Transport error during enumeration: User, password or
>   similar was not accepted (26)
> 
> Signed-off-by: Ladi Prosek <lprosek@xxxxxxxxxx>
> ---
>  src/hyperv/hyperv_driver.c | 2 --
>  src/hyperv/hyperv_wmi.c    | 1 +
>  2 files changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/src/hyperv/hyperv_driver.c b/src/hyperv/hyperv_driver.c
> index 09912610c..52274239c 100644
> --- a/src/hyperv/hyperv_driver.c
> +++ b/src/hyperv/hyperv_driver.c
> @@ -105,8 +105,6 @@ hypervInitConnection(virConnectPtr conn, hypervPrivate *priv,
>          priv->wmiVersion = HYPERV_WMI_VERSION_V1;
>  
>          if (hypervEnumAndPull(priv, &wqlQuery, &computerSystem) < 0) {
> -            virReportError(VIR_ERR_INTERNAL_ERROR,
> -                           _("%s is not a Hyper-V server"), conn->uri->server);

This bit is ok...

>              goto cleanup;
>          }
>      }
> diff --git a/src/hyperv/hyperv_wmi.c b/src/hyperv/hyperv_wmi.c
> index 980a00e28..6a51eff20 100644
> --- a/src/hyperv/hyperv_wmi.c
> +++ b/src/hyperv/hyperv_wmi.c
> @@ -985,6 +985,7 @@ hypervEnumAndPull(hypervPrivate *priv, hypervWqlQueryPtr wqlQuery,
>      hypervObject *object;
>  
>      if (virBufferCheckError(wqlQuery->query) < 0) {
> +        virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Invalid query"));

...but virBufferCheckError already reports an error, so this is invalid.

Regards,
Daniel
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