Re: [edk2-staging][PATCH] BaseTools/Fmmt: Fix found the next FFS issue

["Feng, YunhuaX" <yunhuax.feng@intel.com>]

Hi Ray,
   I have checked the  EFI_FFS_FILE_HEADER, the Size only 3 bytes, GetFfsFileLength only return 0xFFFFFF.  I not found existing macro

typedef struct {
EFI_GUID Name;
EFI_FFS_INTEGRITY_CHECK IntegrityCheck;
EFI_FV_FILETYPE Type;
EFI_FFS_FILE_ATTRIBUTES Attributes;
UINT8 Size[3];
EFI_FFS_FILE_STATE State;
} EFI_FFS_FILE_HEADER


-----Original Message-----
From: Ni, Ray <ray.ni@intel.com> 
Sent: Saturday, May 9, 2020 10:46 AM
To: devel@edk2.groups.io; Feng, YunhuaX <yunhuax.feng@intel.com>
Cc: Feng, Bob C <bob.c.feng@intel.com>; Gao, Liming <liming.gao@intel.com>
Subject: RE: [edk2-staging][PATCH] BaseTools/Fmmt: Fix found the next FFS issue

Yunhua,
Why the comparison is against 0xFFFFFF not 0xFFFFFFFF?

Is there any existing macro that you can use?

Thanks,
Ray

> -----Original Message-----
> From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Feng, YunhuaX
> Sent: Saturday, May 9, 2020 9:59 AM
> To: devel@edk2.groups.io
> Cc: Feng, Bob C <bob.c.feng@intel.com>; Gao, Liming <liming.gao@intel.com>
> Subject: [edk2-devel] [edk2-staging][PATCH] BaseTools/Fmmt: Fix found the next FFS issue
> 
> if found the next FFS size equal 0xFFFFFF, return NOT_FOUND
> 
> Cc: Bob Feng <bob.c.feng@intel.com>
> Cc: Liming Gao <liming.gao@intel.com>
> 
> Signed-off-by: Yunhua Feng <yunhuax.feng@intel.com>
> ---
>  BaseTools/Source/C/FMMT/FmmtLib.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/BaseTools/Source/C/FMMT/FmmtLib.c b/BaseTools/Source/C/FMMT/FmmtLib.c
> index cdbee3d629..4fb10ecfe6 100644
> --- a/BaseTools/Source/C/FMMT/FmmtLib.c
> +++ b/BaseTools/Source/C/FMMT/FmmtLib.c
> @@ -1769,10 +1769,13 @@ FvBufFindNextFile (
>        (*Key + sizeof (*fhdr)) < fvSize;
>        *Key = (UINTN)ALIGN_POINTER (*Key, 8)
>      ) {
>      fhdr = (EFI_FFS_FILE_HEADER*) ((UINT8*)hdr + *Key);
>      fsize = GetFfsFileLength (fhdr);
> +    if (fsize == 0xffffff) {
> +      break;
> +    }
>      if (!EFI_TEST_FFS_ATTRIBUTES_BIT(
>            FvbAttributes,
>            fhdr->State,
>            EFI_FILE_HEADER_VALID
>          ) ||
> --
> 2.12.2.windows.2
> 
> 
>