Re: [PATCH v3] NetworkPkg/Ip6Dxe: Clean the invalid IPv6 configuration during driver start.

["Fu, Siyuan" <siyuan.fu@intel.com>]

Reviewed-by: Siyuan Fu <siyuan.fu@intel.com>

> -----Original Message-----
> From: Wu, Jiaxin
> Sent: Monday, February 18, 2019 9:15 AM
> To: edk2-devel@lists.01.org
> Cc: Michael Turner <Michael.Turner@microsoft.com>; Ye, Ting
> <ting.ye@intel.com>; Fu, Siyuan <siyuan.fu@intel.com>; Wu, Jiaxin
> <jiaxin.wu@intel.com>
> Subject: [PATCH v3] NetworkPkg/Ip6Dxe: Clean the invalid IPv6 configuration
> during driver start.
> 
> REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1448
> 
> *v3: Change the if condition check to only clean the invalid configuration.
> 
> *v2: Add the warning debug message.
> 
> This patch is to clean the invalid data and continue to start IP6 driver.
> 
> Cc: Michael Turner <Michael.Turner@microsoft.com>
> Cc: Ye Ting <ting.ye@intel.com>
> Cc: Fu Siyuan <siyuan.fu@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
> ---
>  NetworkPkg/Ip6Dxe/Ip6Driver.c | 26 ++++++++++++++++++++++----
>  1 file changed, 22 insertions(+), 4 deletions(-)
> 
> diff --git a/NetworkPkg/Ip6Dxe/Ip6Driver.c b/NetworkPkg/Ip6Dxe/Ip6Driver.c
> index 4c607125a6..7a96315ccf 100644
> --- a/NetworkPkg/Ip6Dxe/Ip6Driver.c
> +++ b/NetworkPkg/Ip6Dxe/Ip6Driver.c
> @@ -585,12 +585,21 @@ Ip6DriverBindingStart (
>                         Ip6Cfg,
>                         Ip6ConfigDataTypeManualAddress,
>                         DataItem->DataSize,
>                         DataItem->Data.Ptr
>                         );
> -    if (EFI_ERROR(Status) && Status != EFI_NOT_READY) {
> -      goto UNINSTALL_PROTOCOL;
> +    if (Status == EFI_INVALID_PARAMETER || Status == EFI_BAD_BUFFER_SIZE) {
> +      //
> +      // Clean the invalid ManualAddress configuration.
> +      //
> +      Status = Ip6Cfg->SetData (
> +                         Ip6Cfg,
> +                         Ip6ConfigDataTypeManualAddress,
> +                         0,
> +                         NULL
> +                         );
> +      DEBUG ((EFI_D_WARN, "Ip6DriverBindingStart: Clean the invalid
> ManualAddress configuration.\n"));
>      }
>    }
> 
>    //
>    // If there is any default gateway address, set it.
> @@ -601,12 +610,21 @@ Ip6DriverBindingStart (
>                         Ip6Cfg,
>                         Ip6ConfigDataTypeGateway,
>                         DataItem->DataSize,
>                         DataItem->Data.Ptr
>                         );
> -    if (EFI_ERROR(Status)) {
> -      goto UNINSTALL_PROTOCOL;
> +    if (Status == EFI_INVALID_PARAMETER || Status == EFI_BAD_BUFFER_SIZE) {
> +      //
> +      // Clean the invalid Gateway configuration.
> +      //
> +      Status = Ip6Cfg->SetData (
> +                         Ip6Cfg,
> +                         Ip6ConfigDataTypeGateway,
> +                         0,
> +                         NULL
> +                         );
> +      DEBUG ((EFI_D_WARN, "Ip6DriverBindingStart: Clean the invalid Gateway
> configuration.\n"));
>      }
>    }
> 
>    //
>    // ready to go: start the receiving and timer
> --
> 2.17.1.windows.2