From: "Wu, Jiaxin" <jiaxin.wu@intel.com>
To: "Fu, Siyuan" <siyuan.fu@intel.com>,
"edk2-devel@lists.01.org" <edk2-devel@lists.01.org>
Cc: "Ye, Ting" <ting.ye@intel.com>, "Wang, Fan" <fan.wang@intel.com>
Subject: Re: [Patch] NetworkPkg: Fix incorrect parameter check in PXE.Mtftp() function.
Date: Fri, 12 Jan 2018 00:46:49 +0000 [thread overview]
Message-ID: <895558F6EA4E3B41AC93A00D163B72741635C630@SHSMSX103.ccr.corp.intel.com> (raw)
In-Reply-To: <20180111091830.9724-1-siyuan.fu@intel.com>
Reviewed-by: Jiaxin Wu <jiaxin.wu@intel.com>
> -----Original Message-----
> From: Fu, Siyuan
> Sent: Thursday, January 11, 2018 5:19 PM
> To: edk2-devel@lists.01.org
> Cc: Ye, Ting <ting.ye@intel.com>; Wu, Jiaxin <jiaxin.wu@intel.com>; Wang,
> Fan <fan.wang@intel.com>
> Subject: [Patch] NetworkPkg: Fix incorrect parameter check in PXE.Mtftp()
> function.
>
> According to UEFI spec, the PXE.Mtftp() should return invalid parameter if
> the
> BufferPtr parameter was NULL and the DontUseBuffer parameter was FALSE.
> The DontUseBuffer is only used when perform MTFTP/TFTP read operation.
>
> Cc: Ye Ting <ting.ye@intel.com>
> Cc: Wu Jiaxin <jiaxin.wu@intel.com>
> Cc: Wang Fan <fan.wang@intel.com>
> Contributed-under: TianoCore Contribution Agreement 1.0
> Signed-off-by: Fu Siyuan <siyuan.fu@intel.com>
> ---
> NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c
> b/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c
> index 93f3bfa5ba..9068e0686c 100644
> --- a/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c
> +++ b/NetworkPkg/UefiPxeBcDxe/PxeBcImpl.c
> @@ -855,11 +855,19 @@ EfiPxeBcMtftp (
> (Filename == NULL) ||
> (BufferSize == NULL) ||
> (ServerIp == NULL) ||
> - ((BufferPtr == NULL) && DontUseBuffer) ||
> ((BlockSize != NULL) && (*BlockSize <
> PXE_MTFTP_DEFAULT_BLOCK_SIZE))) {
> return EFI_INVALID_PARAMETER;
> }
>
> + if (Operation == EFI_PXE_BASE_CODE_TFTP_READ_FILE ||
> + Operation == EFI_PXE_BASE_CODE_TFTP_READ_DIRECTORY ||
> + Operation == EFI_PXE_BASE_CODE_MTFTP_READ_FILE ||
> + Operation == EFI_PXE_BASE_CODE_MTFTP_READ_DIRECTORY) {
> + if (BufferPtr == NULL && !DontUseBuffer) {
> + return EFI_INVALID_PARAMETER;
> + }
> + }
> +
> Config = NULL;
> Status = EFI_DEVICE_ERROR;
> Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);
> --
> 2.13.0.windows.1
prev parent reply other threads:[~2018-01-12 0:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-11 9:18 [Patch] NetworkPkg: Fix incorrect parameter check in PXE.Mtftp() function Fu Siyuan
2018-01-12 0:46 ` Wu, Jiaxin [this message]
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