Re: [PATCH v2 2/2] Revert "NetworkPkg/TlsAuthConfigDxe: fix TlsCaCertificate attributes retrieval"

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

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

> -----Original Message-----
> From: michael.kubacki@outlook.com <michael.kubacki@outlook.com>
> Sent: 2020年3月25日 11:00
> To: devel@edk2.groups.io
> Cc: Laszlo Ersek <lersek@redhat.com>; Fu, Siyuan <siyuan.fu@intel.com>;
> Maciej Rabeda <maciej.rabeda@linux.intel.com>; Wu, Jiaxin
> <jiaxin.wu@intel.com>
> Subject: [PATCH v2 2/2] Revert "NetworkPkg/TlsAuthConfigDxe: fix
> TlsCaCertificate attributes retrieval"
> 
> From: Michael Kubacki <michael.kubacki@microsoft.com>
> 
> This reverts commit 6896efdec2709e530b23c688cf0f31706709a0c5.
> 
> REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2062
> 
> GetVariable() now returns attributes when it fails with
> EFI_BUFFER_TOO_SMALL. Therefore, commit 6896efdec270 is
> reverted since it is no longer relevant.
> 
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Siyuan Fu <siyuan.fu@intel.com>
> Cc: Maciej Rabeda <maciej.rabeda@linux.intel.com>
> Cc: Jiaxin Wu <jiaxin.wu@intel.com>
> Signed-off-by: Michael Kubacki <michael.kubacki@microsoft.com>
> ---
>  NetworkPkg/TlsAuthConfigDxe/TlsAuthConfigImpl.c | 27 +-------------------
>  1 file changed, 1 insertion(+), 26 deletions(-)
> 
> diff --git a/NetworkPkg/TlsAuthConfigDxe/TlsAuthConfigImpl.c
> b/NetworkPkg/TlsAuthConfigDxe/TlsAuthConfigImpl.c
> index 715bc3a0a941..2481d1098fa3 100644
> --- a/NetworkPkg/TlsAuthConfigDxe/TlsAuthConfigImpl.c
> +++ b/NetworkPkg/TlsAuthConfigDxe/TlsAuthConfigImpl.c
> @@ -657,7 +657,6 @@ EnrollX509toVariable (
>    EFI_SIGNATURE_LIST                *CACert;
>    EFI_SIGNATURE_DATA                *CACertData;
>    VOID                              *Data;
> -  VOID                              *CurrentData;
>    UINTN                             DataSize;
>    UINTN                             SigDataSize;
>    UINT32                            Attr;
> @@ -669,7 +668,6 @@ EnrollX509toVariable (
>    CACert        = NULL;
>    CACertData    = NULL;
>    Data          = NULL;
> -  CurrentData   = NULL;
>    Attr          = 0;
> 
>    Status = ReadFileContent (
> @@ -712,30 +710,11 @@ EnrollX509toVariable (
>    Status = gRT->GetVariable(
>                    VariableName,
>                    &gEfiTlsCaCertificateGuid,
> -                  NULL,
> +                  &Attr,
>                    &DataSize,
>                    NULL
>                    );
>    if (Status == EFI_BUFFER_TOO_SMALL) {
> -    //
> -    // Per spec, we have to fetch the variable's contents, even though we're
> -    // only interested in the variable's attributes.
> -    //
> -    CurrentData = AllocatePool (DataSize);
> -    if (CurrentData == NULL) {
> -      Status = EFI_OUT_OF_RESOURCES;
> -      goto ON_EXIT;
> -    }
> -    Status = gRT->GetVariable(
> -                    VariableName,
> -                    &gEfiTlsCaCertificateGuid,
> -                    &Attr,
> -                    &DataSize,
> -                    CurrentData
> -                    );
> -    if (EFI_ERROR (Status)) {
> -      goto ON_EXIT;
> -    }
>      Attr |= EFI_VARIABLE_APPEND_WRITE;
>    } else if (Status == EFI_NOT_FOUND) {
>      Attr = TLS_AUTH_CONFIG_VAR_BASE_ATTR;
> @@ -766,10 +745,6 @@ ON_EXIT:
>      FreePool (Data);
>    }
> 
> -  if (CurrentData != NULL) {
> -    FreePool (CurrentData);
> -  }
> -
>    if (X509Data != NULL) {
>      FreePool (X509Data);
>    }
> --
> 2.16.3.windows.1