NetworkPkg: Convert the UNIX to DOS end of line format

Convert the UNIX to DOS end of line format.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18326 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 364 insertions, 364 deletions

diff --git a/NetworkPkg/HttpBootDxe/HttpBootImpl.c b/NetworkPkg/HttpBootDxe/HttpBootImpl.c
index 920761e331..eee63c21d3 100644
--- a/NetworkPkg/HttpBootDxe/HttpBootImpl.c
+++ b/NetworkPkg/HttpBootDxe/HttpBootImpl.c
@@ -1,364 +1,364 @@
-/** @file
-  The implementation of EFI_LOAD_FILE_PROTOCOL for UEFI HTTP boot.
-
-Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
-This program and the accompanying materials are licensed and made available under 
-the terms and conditions of the BSD License that accompanies this distribution.  
-The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php.                                          
-    
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-#include "HttpBootDxe.h"
-
-/**
-  Enable the use of UEFI HTTP boot function.
-
-  @param[in]    Private            The pointer to the driver's private data.
-
-  @retval EFI_SUCCESS              HTTP boot was successfully enabled.
-  @retval EFI_INVALID_PARAMETER    Private is NULL.
-  @retval EFI_ALREADY_STARTED      The driver is already in started state.
-  
-**/
-EFI_STATUS
-HttpBootStart (
-  IN HTTP_BOOT_PRIVATE_DATA           *Private
-  )
-{
-  UINTN          Index;
-
-  if (Private == NULL) {
-    return EFI_INVALID_PARAMETER;
-  }
-
-  if (Private->Started) {
-    return EFI_ALREADY_STARTED;
-  }
-
-  if (!Private->UsingIpv6) {
-    //
-    // Init the content of cached DHCP offer list.
-    //
-    ZeroMem (Private->OfferBuffer, sizeof (Private->OfferBuffer));
-    for (Index = 0; Index < HTTP_BOOT_OFFER_MAX_NUM; Index++) {
-      Private->OfferBuffer[Index].Dhcp4.Packet.Offer.Size = HTTP_BOOT_DHCP4_PACKET_MAX_SIZE;
-    }
-  } else {
-    ASSERT (FALSE);
-  }
-
-  Private->Started = TRUE;
-
-  return EFI_SUCCESS;
-}
-
-/**
-  Attempt to complete a DHCPv4 D.O.R.A sequence to retrieve the boot resource information.
-
-  @param[in]    Private            The pointer to the driver's private data.
-
-  @retval EFI_SUCCESS              Boot info was successfully retrieved.
-  @retval EFI_INVALID_PARAMETER    Private is NULL.
-  @retval EFI_NOT_STARTED          The driver is in stopped state.
-  @retval EFI_DEVICE_ERROR         An unexpected network error occurred.
-  @retval Others                   Other errors as indicated.
-  
-**/
-EFI_STATUS
-HttpBootDhcp (
-  IN HTTP_BOOT_PRIVATE_DATA           *Private
-  )
-{
-  EFI_STATUS                Status;
-
-  if (Private == NULL) {
-    return EFI_INVALID_PARAMETER;
-  }
-  
-  if (!Private->Started) {
-    return EFI_NOT_STARTED;
-  }
-
-  Status = EFI_DEVICE_ERROR;
-
-  if (!Private->UsingIpv6) {
-    Status = HttpBootDhcp4Dora (Private);
-  } else {
-    ASSERT (FALSE);
-  }
-
-  return Status;
-}
-
-/**
-  Attempt to download the boot file through HTTP message exchange.
-
-  @param[in]          Private         The pointer to the driver's private data.
-  @param[in, out]     BufferSize      On input the size of Buffer in bytes. On output with a return
-                                      code of EFI_SUCCESS, the amount of data transferred to
-                                      Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,
-                                      the size of Buffer required to retrieve the requested file.
-  @param[in]          Buffer          The memory buffer to transfer the file to. If Buffer is NULL,
-                                      then the size of the requested file is returned in
-                                      BufferSize.
-
-  @retval EFI_SUCCESS                 Boot file was loaded successfully.
-  @retval EFI_INVALID_PARAMETER       Private is NULL.
-  @retval EFI_NOT_STARTED             The driver is in stopped state.
-  @retval EFI_BUFFER_TOO_SMALL        The BufferSize is too small to read the boot file. BufferSize has 
-                                      been updated with the size needed to complete the request.
-  @retval EFI_DEVICE_ERROR            An unexpected network error occurred.
-  @retval Others                      Other errors as indicated.
-  
-**/
-EFI_STATUS
-HttpBootLoadFile (
-  IN     HTTP_BOOT_PRIVATE_DATA       *Private,
-  IN OUT UINTN                        *BufferSize,
-  IN     VOID                         *Buffer       OPTIONAL
-  )
-{
-  EFI_STATUS             Status;
-
-  if (Private == NULL) {
-    return EFI_INVALID_PARAMETER;
-  }
-  
-  if (!Private->Started) {
-    return EFI_NOT_STARTED;
-  }
-
-  Status = EFI_DEVICE_ERROR;
-
-  if (Private->BootFileUri == NULL) {
-    //
-    // Parse the cached offer to get the boot file URL first.
-    //
-    Status = HttpBootDiscoverBootInfo (Private);
-    if (EFI_ERROR (Status)) {
-      return Status;
-    }
-  }
-
-  if (!Private->HttpCreated) {
-    //
-    // Create HTTP child.
-    //
-    Status = HttpBootCreateHttpIo (Private);
-    if (EFI_ERROR (Status)) {
-      return Status;
-    }
-  }
-
-  if (Private->BootFileSize == 0) {
-    //
-    // Discover the information about the bootfile if we haven't.
-    //
-
-    //
-    // Try to use HTTP HEAD method.
-    //
-    Status = HttpBootGetBootFile (
-               Private,
-               TRUE,
-               &Private->BootFileSize,
-               NULL
-               );
-    if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {
-      //
-      // Failed to get file size by HEAD method, may be trunked encoding, try HTTP GET method.
-      //
-      ASSERT (Private->BootFileSize == 0);
-      Status = HttpBootGetBootFile (
-                 Private,
-                 FALSE,
-                 &Private->BootFileSize,
-                 NULL
-                 );
-      if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {
-        return Status;
-      }
-    }
-  }
-
-  if (*BufferSize < Private->BootFileSize) {
-    *BufferSize = Private->BootFileSize;
-    return EFI_BUFFER_TOO_SMALL;
-  }
-
-  //
-  // Load the boot file into Buffer
-  //
-  return  HttpBootGetBootFile (
-            Private,
-            FALSE,
-            BufferSize,
-            Buffer
-            );
-}
-
-/**
-  Disable the use of UEFI HTTP boot function.
-
-  @param[in]    Private            The pointer to the driver's private data.
-
-  @retval EFI_SUCCESS              HTTP boot was successfully disabled.
-  @retval EFI_NOT_STARTED          The driver is already in stopped state.
-  @retval EFI_INVALID_PARAMETER    Private is NULL.
-  @retval Others                   Unexpected error when stop the function.
-  
-**/
-EFI_STATUS
-HttpBootStop (
-  IN HTTP_BOOT_PRIVATE_DATA           *Private
-  )
-{
-  UINTN            Index;
-
-  if (Private == NULL) {
-    return EFI_INVALID_PARAMETER;
-  }
-  
-  if (!Private->Started) {
-    return EFI_NOT_STARTED;
-  }
-  
-  if (Private->HttpCreated) {
-    HttpIoDestroyIo (&Private->HttpIo);
-    Private->HttpCreated = FALSE;
-  }
-  
-  Private->Started = FALSE;
-  ZeroMem (&Private->StationIp, sizeof (EFI_IP_ADDRESS));
-  ZeroMem (&Private->SubnetMask, sizeof (EFI_IP_ADDRESS));
-  ZeroMem (&Private->GatewayIp, sizeof (EFI_IP_ADDRESS));
-  Private->Port = 0;
-  Private->BootFileUri = NULL;
-  Private->BootFileUriParser = NULL;
-  Private->BootFileSize = 0;
-  Private->SelectIndex = 0;
-  Private->SelectProxyType = HttpOfferTypeMax;
-
-  if (!Private->UsingIpv6) {
-    //
-    // Stop and release the DHCP4 child.
-    //
-    Private->Dhcp4->Stop (Private->Dhcp4);
-    Private->Dhcp4->Configure (Private->Dhcp4, NULL);
-
-    for (Index = 0; Index < HTTP_BOOT_OFFER_MAX_NUM; Index++) {
-      if (Private->OfferBuffer[Index].Dhcp4.UriParser) {
-        HttpUrlFreeParser (Private->OfferBuffer[Index].Dhcp4.UriParser);
-      }
-    }
-  } else {
-    ASSERT (FALSE);
-  }
-  
-  ZeroMem (Private->OfferBuffer, sizeof (Private->OfferBuffer));
-  Private->OfferNum = 0;
-  ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));
-  ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));
-
-  return EFI_SUCCESS;
-}
-
-/**
-  Causes the driver to load a specified file.
-
-  @param  This       Protocol instance pointer.
-  @param  FilePath   The device specific path of the file to load.
-  @param  BootPolicy If TRUE, indicates that the request originates from the
-                     boot manager is attempting to load FilePath as a boot
-                     selection. If FALSE, then FilePath must match as exact file
-                     to be loaded.
-  @param  BufferSize On input the size of Buffer in bytes. On output with a return
-                     code of EFI_SUCCESS, the amount of data transferred to
-                     Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,
-                     the size of Buffer required to retrieve the requested file.
-  @param  Buffer     The memory buffer to transfer the file to. IF Buffer is NULL,
-                     then the size of the requested file is returned in
-                     BufferSize.
-
-  @retval EFI_SUCCESS           The file was loaded.
-  @retval EFI_UNSUPPORTED       The device does not support the provided BootPolicy
-  @retval EFI_INVALID_PARAMETER FilePath is not a valid device path, or
-                                BufferSize is NULL.
-  @retval EFI_NO_MEDIA          No medium was present to load the file.
-  @retval EFI_DEVICE_ERROR      The file was not loaded due to a device error.
-  @retval EFI_NO_RESPONSE       The remote system did not respond.
-  @retval EFI_NOT_FOUND         The file was not found.
-  @retval EFI_ABORTED           The file load process was manually cancelled.
-  @retval EFI_BUFFER_TOO_SMALL  The BufferSize is too small to read the current directory entry.
-                                BufferSize has been updated with the size needed to complete
-                                the request.
-
-**/
-EFI_STATUS
-EFIAPI
-HttpBootDxeLoadFile (
-  IN EFI_LOAD_FILE_PROTOCOL           *This,
-  IN EFI_DEVICE_PATH_PROTOCOL         *FilePath,
-  IN BOOLEAN                          BootPolicy,
-  IN OUT UINTN                        *BufferSize,
-  IN VOID                             *Buffer OPTIONAL
-  )
-{
-  HTTP_BOOT_PRIVATE_DATA        *Private;
-  BOOLEAN                       MediaPresent;
-  EFI_STATUS                    Status;
-
-  if (This == NULL || BufferSize == NULL) {
-    return EFI_INVALID_PARAMETER;
-  }
-
-  //
-  // Only support BootPolicy
-  //
-  if (!BootPolicy) {
-    return EFI_UNSUPPORTED;
-  }
-
-  Private = HTTP_BOOT_PRIVATE_DATA_FROM_LOADFILE (This);
-
-  //
-  // Check media status before HTTP boot start
-  //
-  MediaPresent = TRUE;
-  NetLibDetectMedia (Private->Controller, &MediaPresent);
-  if (!MediaPresent) {
-    return EFI_NO_MEDIA;
-  }
-
-  //
-  // Initialize HTTP boot and load the boot file.
-  //
-  Status = HttpBootStart (Private);
-  if (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED) {
-    Status = HttpBootLoadFile (Private, BufferSize, Buffer);
-  }
-
-  if (Status != EFI_SUCCESS && Status != EFI_BUFFER_TOO_SMALL) {
-    HttpBootStop (Private);
-  } else {
-    //
-    // Stop and release the DHCP4 child.
-    //
-    Private->Dhcp4->Stop (Private->Dhcp4);
-    Private->Dhcp4->Configure (Private->Dhcp4, NULL);
-  }
-
-  return Status;
-}
-
-///
-/// Load File Protocol instance
-///
-GLOBAL_REMOVE_IF_UNREFERENCED 
-EFI_LOAD_FILE_PROTOCOL  gHttpBootDxeLoadFile = {
-  HttpBootDxeLoadFile
-};
+/** @file

+  The implementation of EFI_LOAD_FILE_PROTOCOL for UEFI HTTP boot.

+

+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>

+This program and the accompanying materials are licensed and made available under 

+the terms and conditions of the BSD License that accompanies this distribution.  

+The full text of the license may be found at

+http://opensource.org/licenses/bsd-license.php.                                          

+    

+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     

+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

+

+**/

+

+#include "HttpBootDxe.h"

+

+/**

+  Enable the use of UEFI HTTP boot function.

+

+  @param[in]    Private            The pointer to the driver's private data.

+

+  @retval EFI_SUCCESS              HTTP boot was successfully enabled.

+  @retval EFI_INVALID_PARAMETER    Private is NULL.

+  @retval EFI_ALREADY_STARTED      The driver is already in started state.

+  

+**/

+EFI_STATUS

+HttpBootStart (

+  IN HTTP_BOOT_PRIVATE_DATA           *Private

+  )

+{

+  UINTN          Index;

+

+  if (Private == NULL) {

+    return EFI_INVALID_PARAMETER;

+  }

+

+  if (Private->Started) {

+    return EFI_ALREADY_STARTED;

+  }

+

+  if (!Private->UsingIpv6) {

+    //

+    // Init the content of cached DHCP offer list.

+    //

+    ZeroMem (Private->OfferBuffer, sizeof (Private->OfferBuffer));

+    for (Index = 0; Index < HTTP_BOOT_OFFER_MAX_NUM; Index++) {

+      Private->OfferBuffer[Index].Dhcp4.Packet.Offer.Size = HTTP_BOOT_DHCP4_PACKET_MAX_SIZE;

+    }

+  } else {

+    ASSERT (FALSE);

+  }

+

+  Private->Started = TRUE;

+

+  return EFI_SUCCESS;

+}

+

+/**

+  Attempt to complete a DHCPv4 D.O.R.A sequence to retrieve the boot resource information.

+

+  @param[in]    Private            The pointer to the driver's private data.

+

+  @retval EFI_SUCCESS              Boot info was successfully retrieved.

+  @retval EFI_INVALID_PARAMETER    Private is NULL.

+  @retval EFI_NOT_STARTED          The driver is in stopped state.

+  @retval EFI_DEVICE_ERROR         An unexpected network error occurred.

+  @retval Others                   Other errors as indicated.

+  

+**/

+EFI_STATUS

+HttpBootDhcp (

+  IN HTTP_BOOT_PRIVATE_DATA           *Private

+  )

+{

+  EFI_STATUS                Status;

+

+  if (Private == NULL) {

+    return EFI_INVALID_PARAMETER;

+  }

+  

+  if (!Private->Started) {

+    return EFI_NOT_STARTED;

+  }

+

+  Status = EFI_DEVICE_ERROR;

+

+  if (!Private->UsingIpv6) {

+    Status = HttpBootDhcp4Dora (Private);

+  } else {

+    ASSERT (FALSE);

+  }

+

+  return Status;

+}

+

+/**

+  Attempt to download the boot file through HTTP message exchange.

+

+  @param[in]          Private         The pointer to the driver's private data.

+  @param[in, out]     BufferSize      On input the size of Buffer in bytes. On output with a return

+                                      code of EFI_SUCCESS, the amount of data transferred to

+                                      Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,

+                                      the size of Buffer required to retrieve the requested file.

+  @param[in]          Buffer          The memory buffer to transfer the file to. If Buffer is NULL,

+                                      then the size of the requested file is returned in

+                                      BufferSize.

+

+  @retval EFI_SUCCESS                 Boot file was loaded successfully.

+  @retval EFI_INVALID_PARAMETER       Private is NULL.

+  @retval EFI_NOT_STARTED             The driver is in stopped state.

+  @retval EFI_BUFFER_TOO_SMALL        The BufferSize is too small to read the boot file. BufferSize has 

+                                      been updated with the size needed to complete the request.

+  @retval EFI_DEVICE_ERROR            An unexpected network error occurred.

+  @retval Others                      Other errors as indicated.

+  

+**/

+EFI_STATUS

+HttpBootLoadFile (

+  IN     HTTP_BOOT_PRIVATE_DATA       *Private,

+  IN OUT UINTN                        *BufferSize,

+  IN     VOID                         *Buffer       OPTIONAL

+  )

+{

+  EFI_STATUS             Status;

+

+  if (Private == NULL) {

+    return EFI_INVALID_PARAMETER;

+  }

+  

+  if (!Private->Started) {

+    return EFI_NOT_STARTED;

+  }

+

+  Status = EFI_DEVICE_ERROR;

+

+  if (Private->BootFileUri == NULL) {

+    //

+    // Parse the cached offer to get the boot file URL first.

+    //

+    Status = HttpBootDiscoverBootInfo (Private);

+    if (EFI_ERROR (Status)) {

+      return Status;

+    }

+  }

+

+  if (!Private->HttpCreated) {

+    //

+    // Create HTTP child.

+    //

+    Status = HttpBootCreateHttpIo (Private);

+    if (EFI_ERROR (Status)) {

+      return Status;

+    }

+  }

+

+  if (Private->BootFileSize == 0) {

+    //

+    // Discover the information about the bootfile if we haven't.

+    //

+

+    //

+    // Try to use HTTP HEAD method.

+    //

+    Status = HttpBootGetBootFile (

+               Private,

+               TRUE,

+               &Private->BootFileSize,

+               NULL

+               );

+    if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {

+      //

+      // Failed to get file size by HEAD method, may be trunked encoding, try HTTP GET method.

+      //

+      ASSERT (Private->BootFileSize == 0);

+      Status = HttpBootGetBootFile (

+                 Private,

+                 FALSE,

+                 &Private->BootFileSize,

+                 NULL

+                 );

+      if (EFI_ERROR (Status) && Status != EFI_BUFFER_TOO_SMALL) {

+        return Status;

+      }

+    }

+  }

+

+  if (*BufferSize < Private->BootFileSize) {

+    *BufferSize = Private->BootFileSize;

+    return EFI_BUFFER_TOO_SMALL;

+  }

+

+  //

+  // Load the boot file into Buffer

+  //

+  return  HttpBootGetBootFile (

+            Private,

+            FALSE,

+            BufferSize,

+            Buffer

+            );

+}

+

+/**

+  Disable the use of UEFI HTTP boot function.

+

+  @param[in]    Private            The pointer to the driver's private data.

+

+  @retval EFI_SUCCESS              HTTP boot was successfully disabled.

+  @retval EFI_NOT_STARTED          The driver is already in stopped state.

+  @retval EFI_INVALID_PARAMETER    Private is NULL.

+  @retval Others                   Unexpected error when stop the function.

+  

+**/

+EFI_STATUS

+HttpBootStop (

+  IN HTTP_BOOT_PRIVATE_DATA           *Private

+  )

+{

+  UINTN            Index;

+

+  if (Private == NULL) {

+    return EFI_INVALID_PARAMETER;

+  }

+  

+  if (!Private->Started) {

+    return EFI_NOT_STARTED;

+  }

+  

+  if (Private->HttpCreated) {

+    HttpIoDestroyIo (&Private->HttpIo);

+    Private->HttpCreated = FALSE;

+  }

+  

+  Private->Started = FALSE;

+  ZeroMem (&Private->StationIp, sizeof (EFI_IP_ADDRESS));

+  ZeroMem (&Private->SubnetMask, sizeof (EFI_IP_ADDRESS));

+  ZeroMem (&Private->GatewayIp, sizeof (EFI_IP_ADDRESS));

+  Private->Port = 0;

+  Private->BootFileUri = NULL;

+  Private->BootFileUriParser = NULL;

+  Private->BootFileSize = 0;

+  Private->SelectIndex = 0;

+  Private->SelectProxyType = HttpOfferTypeMax;

+

+  if (!Private->UsingIpv6) {

+    //

+    // Stop and release the DHCP4 child.

+    //

+    Private->Dhcp4->Stop (Private->Dhcp4);

+    Private->Dhcp4->Configure (Private->Dhcp4, NULL);

+

+    for (Index = 0; Index < HTTP_BOOT_OFFER_MAX_NUM; Index++) {

+      if (Private->OfferBuffer[Index].Dhcp4.UriParser) {

+        HttpUrlFreeParser (Private->OfferBuffer[Index].Dhcp4.UriParser);

+      }

+    }

+  } else {

+    ASSERT (FALSE);

+  }

+  

+  ZeroMem (Private->OfferBuffer, sizeof (Private->OfferBuffer));

+  Private->OfferNum = 0;

+  ZeroMem (Private->OfferCount, sizeof (Private->OfferCount));

+  ZeroMem (Private->OfferIndex, sizeof (Private->OfferIndex));

+

+  return EFI_SUCCESS;

+}

+

+/**

+  Causes the driver to load a specified file.

+

+  @param  This       Protocol instance pointer.

+  @param  FilePath   The device specific path of the file to load.

+  @param  BootPolicy If TRUE, indicates that the request originates from the

+                     boot manager is attempting to load FilePath as a boot

+                     selection. If FALSE, then FilePath must match as exact file

+                     to be loaded.

+  @param  BufferSize On input the size of Buffer in bytes. On output with a return

+                     code of EFI_SUCCESS, the amount of data transferred to

+                     Buffer. On output with a return code of EFI_BUFFER_TOO_SMALL,

+                     the size of Buffer required to retrieve the requested file.

+  @param  Buffer     The memory buffer to transfer the file to. IF Buffer is NULL,

+                     then the size of the requested file is returned in

+                     BufferSize.

+

+  @retval EFI_SUCCESS           The file was loaded.

+  @retval EFI_UNSUPPORTED       The device does not support the provided BootPolicy

+  @retval EFI_INVALID_PARAMETER FilePath is not a valid device path, or

+                                BufferSize is NULL.

+  @retval EFI_NO_MEDIA          No medium was present to load the file.

+  @retval EFI_DEVICE_ERROR      The file was not loaded due to a device error.

+  @retval EFI_NO_RESPONSE       The remote system did not respond.

+  @retval EFI_NOT_FOUND         The file was not found.

+  @retval EFI_ABORTED           The file load process was manually cancelled.

+  @retval EFI_BUFFER_TOO_SMALL  The BufferSize is too small to read the current directory entry.

+                                BufferSize has been updated with the size needed to complete

+                                the request.

+

+**/

+EFI_STATUS

+EFIAPI

+HttpBootDxeLoadFile (

+  IN EFI_LOAD_FILE_PROTOCOL           *This,

+  IN EFI_DEVICE_PATH_PROTOCOL         *FilePath,

+  IN BOOLEAN                          BootPolicy,

+  IN OUT UINTN                        *BufferSize,

+  IN VOID                             *Buffer OPTIONAL

+  )

+{

+  HTTP_BOOT_PRIVATE_DATA        *Private;

+  BOOLEAN                       MediaPresent;

+  EFI_STATUS                    Status;

+

+  if (This == NULL || BufferSize == NULL) {

+    return EFI_INVALID_PARAMETER;

+  }

+

+  //

+  // Only support BootPolicy

+  //

+  if (!BootPolicy) {

+    return EFI_UNSUPPORTED;

+  }

+

+  Private = HTTP_BOOT_PRIVATE_DATA_FROM_LOADFILE (This);

+

+  //

+  // Check media status before HTTP boot start

+  //

+  MediaPresent = TRUE;

+  NetLibDetectMedia (Private->Controller, &MediaPresent);

+  if (!MediaPresent) {

+    return EFI_NO_MEDIA;

+  }

+

+  //

+  // Initialize HTTP boot and load the boot file.

+  //

+  Status = HttpBootStart (Private);

+  if (Status == EFI_SUCCESS || Status == EFI_ALREADY_STARTED) {

+    Status = HttpBootLoadFile (Private, BufferSize, Buffer);

+  }

+

+  if (Status != EFI_SUCCESS && Status != EFI_BUFFER_TOO_SMALL) {

+    HttpBootStop (Private);

+  } else {

+    //

+    // Stop and release the DHCP4 child.

+    //

+    Private->Dhcp4->Stop (Private->Dhcp4);

+    Private->Dhcp4->Configure (Private->Dhcp4, NULL);

+  }

+

+  return Status;

+}

+

+///

+/// Load File Protocol instance

+///

+GLOBAL_REMOVE_IF_UNREFERENCED 

+EFI_LOAD_FILE_PROTOCOL  gHttpBootDxeLoadFile = {

+  HttpBootDxeLoadFile

+};