MdeModulePkg: Delete UefiPxeBcDxe in MdeModulePkg.

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1278

This patch is to delete the UefiPxeBcDxe driver in MdeModulePkg. The
driver will not be maintained and can't co-work with the dual-stack
UefiPxeBcDxe in NetworkPkg.

People should use below NetworkPkg drivers instead:
  NetworkPkg/UefiPxeBcDxe/UefiPxeBcDxe.inf
Which is actively maintained with more bug fixes and new feature support.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao Wu <hao.a.wu@intel.com>
Cc: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Jiaxin Wu <jiaxin.wu@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Siyuan Fu <siyuan.fu@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>

15 files changed, 0 insertions, 7905 deletions

diff --git a/MdeModulePkg/MdeModulePkg.dsc b/MdeModulePkg/MdeModulePkg.dsc
index b787fb5692..5d042be3a8 100644
--- a/MdeModulePkg/MdeModulePkg.dsc
+++ b/MdeModulePkg/MdeModulePkg.dsc
@@ -420,7 +420,6 @@
   MdeModulePkg/Library/DxeCapsuleLibFmp/DxeRuntimeCapsuleLib.inf

 

 [Components.IA32, Components.X64, Components.AARCH64]

-  MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxeBcDxe.inf

   MdeModulePkg/Universal/DebugSupportDxe/DebugSupportDxe.inf

   MdeModulePkg/Universal/EbcDxe/EbcDxe.inf

   MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/ComponentName.c b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/ComponentName.c
deleted file mode 100644
index a085ef61f3..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/ComponentName.c
+++ /dev/null
@@ -1,365 +0,0 @@
-/** @file

-

-Copyright (c) 2007 - 2018, 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

-which 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 "PxeBcImpl.h"

-

-//

-// EFI Component Name Functions

-//

-/**

-  Retrieves a Unicode string that is the user readable name of the driver.

-

-  This function retrieves the user readable name of a driver in the form of a

-  Unicode string. If the driver specified by This has a user readable name in

-  the language specified by Language, then a pointer to the driver name is

-  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified

-  by This does not support the language specified by Language,

-  then EFI_UNSUPPORTED is returned.

-

-  @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or

-                                EFI_COMPONENT_NAME_PROTOCOL instance.

-

-  @param[in]  Language          A pointer to a Null-terminated ASCII string

-                                array indicating the language. This is the

-                                language of the driver name that the caller is

-                                requesting, and it must match one of the

-                                languages specified in SupportedLanguages. The

-                                number of languages supported by a driver is up

-                                to the driver writer. Language is specified

-                                in RFC 4646 or ISO 639-2 language code format.

-

-  @param[out]  DriverName       A pointer to the Unicode string to return.

-                                This Unicode string is the name of the

-                                driver specified by This in the language

-                                specified by Language.

-

-  @retval EFI_SUCCESS           The Unicode string for the Driver specified by

-                                This and the language specified by Language was

-                                returned in DriverName.

-

-  @retval EFI_INVALID_PARAMETER Language is NULL.

-

-  @retval EFI_INVALID_PARAMETER DriverName is NULL.

-

-  @retval EFI_UNSUPPORTED       The driver specified by This does not support

-                                the language specified by Language.

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcComponentNameGetDriverName (

-  IN  EFI_COMPONENT_NAME_PROTOCOL  * This,

-  IN  CHAR8                        *Language,

-  OUT CHAR16                       **DriverName

-  );

-

-/**

-  Retrieves a Unicode string that is the user readable name of the controller

-  that is being managed by a driver.

-

-  This function retrieves the user readable name of the controller specified by

-  ControllerHandle and ChildHandle in the form of a Unicode string. If the

-  driver specified by This has a user readable name in the language specified by

-  Language, then a pointer to the controller name is returned in ControllerName,

-  and EFI_SUCCESS is returned.  If the driver specified by This is not currently

-  managing the controller specified by ControllerHandle and ChildHandle,

-  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not

-  support the language specified by Language, then EFI_UNSUPPORTED is returned.

-

-  @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or

-                                EFI_COMPONENT_NAME_PROTOCOL instance.

-

-  @param[in]  ControllerHandle  The handle of a controller that the driver

-                                specified by This is managing.  This handle

-                                specifies the controller whose name is to be

-                                returned.

-

-  @param[in]  ChildHandle       The handle of the child controller to retrieve

-                                the name of.  This is an optional parameter that

-                                may be NULL.  It will be NULL for device

-                                drivers.  It will also be NULL for a bus drivers

-                                that wish to retrieve the name of the bus

-                                controller.  It will not be NULL for a bus

-                                driver that wishes to retrieve the name of a

-                                child controller.

-

-  @param[in]  Language          A pointer to a Null-terminated ASCII string

-                                array indicating the language.  This is the

-                                language of the driver name that the caller is

-                                requesting, and it must match one of the

-                                languages specified in SupportedLanguages. The

-                                number of languages supported by a driver is up

-                                to the driver writer. Language is specified in

-                                RFC 4646 or ISO 639-2 language code format.

-

-  @param[out]  ControllerName   A pointer to the Unicode string to return.

-                                This Unicode string is the name of the

-                                controller specified by ControllerHandle and

-                                ChildHandle in the language specified by

-                                Language from the point of view of the driver

-                                specified by This.

-

-  @retval EFI_SUCCESS           The Unicode string for the user readable name in

-                                the language specified by Language for the

-                                driver specified by This was returned in

-                                DriverName.

-

-  @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.

-

-  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid

-                                EFI_HANDLE.

-

-  @retval EFI_INVALID_PARAMETER Language is NULL.

-

-  @retval EFI_INVALID_PARAMETER ControllerName is NULL.

-

-  @retval EFI_UNSUPPORTED       The driver specified by This is not currently

-                                managing the controller specified by

-                                ControllerHandle and ChildHandle.

-

-  @retval EFI_UNSUPPORTED       The driver specified by This does not support

-                                the language specified by Language.

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcComponentNameGetControllerName (

-  IN  EFI_COMPONENT_NAME_PROTOCOL  * This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,

-  IN  CHAR8                        *Language,

-  OUT CHAR16                       **ControllerName

-  );

-

-//

-// EFI Component Name Protocol

-//

-GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL     gPxeBcComponentName = {

-  PxeBcComponentNameGetDriverName,

-  PxeBcComponentNameGetControllerName,

-  "eng"

-};

-

-GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL    gPxeBcComponentName2 = {

-  (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) PxeBcComponentNameGetDriverName,

-  (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) PxeBcComponentNameGetControllerName,

-  "en"

-};

-

-GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mPxeBcDriverNameTable[] = {

-  {

-    "eng;en",

-    L"UEFI PXE Base Code Driver"

-  },

-  {

-    NULL,

-    NULL

-  }

-};

-

-GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mPxeBcControllerNameTable[] = {

-  {

-    "eng;en",

-    L"PXE Controller"

-  },

-  {

-    NULL,

-    NULL

-  }

-};

-

-/**

-  Retrieves a Unicode string that is the user readable name of the driver.

-

-  This function retrieves the user readable name of a driver in the form of a

-  Unicode string. If the driver specified by This has a user readable name in

-  the language specified by Language, then a pointer to the driver name is

-  returned in DriverName, and EFI_SUCCESS is returned. If the driver specified

-  by This does not support the language specified by Language,

-  then EFI_UNSUPPORTED is returned.

-

-  @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or

-                                EFI_COMPONENT_NAME_PROTOCOL instance.

-

-  @param[in]  Language          A pointer to a Null-terminated ASCII string

-                                array indicating the language. This is the

-                                language of the driver name that the caller is

-                                requesting, and it must match one of the

-                                languages specified in SupportedLanguages. The

-                                number of languages supported by a driver is up

-                                to the driver writer. Language is specified

-                                in RFC 4646 or ISO 639-2 language code format.

-

-  @param[out]  DriverName       A pointer to the Unicode string to return.

-                                This Unicode string is the name of the

-                                driver specified by This in the language

-                                specified by Language.

-

-  @retval EFI_SUCCESS           The Unicode string for the Driver specified by

-                                This and the language specified by Language was

-                                returned in DriverName.

-

-  @retval EFI_INVALID_PARAMETER Language is NULL.

-

-  @retval EFI_INVALID_PARAMETER DriverName is NULL.

-

-  @retval EFI_UNSUPPORTED       The driver specified by This does not support

-                                the language specified by Language.

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcComponentNameGetDriverName (

-  IN  EFI_COMPONENT_NAME_PROTOCOL  * This,

-  IN  CHAR8                        *Language,

-  OUT CHAR16                       **DriverName

-  )

-{

-  return LookupUnicodeString2 (

-          Language,

-          This->SupportedLanguages,

-          mPxeBcDriverNameTable,

-          DriverName,

-          (BOOLEAN)(This == &gPxeBcComponentName)

-          );

-}

-

-/**

-  Retrieves a Unicode string that is the user readable name of the controller

-  that is being managed by a driver.

-

-  This function retrieves the user readable name of the controller specified by

-  ControllerHandle and ChildHandle in the form of a Unicode string. If the

-  driver specified by This has a user readable name in the language specified by

-  Language, then a pointer to the controller name is returned in ControllerName,

-  and EFI_SUCCESS is returned.  If the driver specified by This is not currently

-  managing the controller specified by ControllerHandle and ChildHandle,

-  then EFI_UNSUPPORTED is returned.  If the driver specified by This does not

-  support the language specified by Language, then EFI_UNSUPPORTED is returned.

-

-  @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or

-                                EFI_COMPONENT_NAME_PROTOCOL instance.

-

-  @param[in]  ControllerHandle  The handle of a controller that the driver

-                                specified by This is managing.  This handle

-                                specifies the controller whose name is to be

-                                returned.

-

-  @param[in]  ChildHandle       The handle of the child controller to retrieve

-                                the name of.  This is an optional parameter that

-                                may be NULL.  It will be NULL for device

-                                drivers.  It will also be NULL for a bus drivers

-                                that wish to retrieve the name of the bus

-                                controller.  It will not be NULL for a bus

-                                driver that wishes to retrieve the name of a

-                                child controller.

-

-  @param[in]  Language          A pointer to a Null-terminated ASCII string

-                                array indicating the language.  This is the

-                                language of the driver name that the caller is

-                                requesting, and it must match one of the

-                                languages specified in SupportedLanguages. The

-                                number of languages supported by a driver is up

-                                to the driver writer. Language is specified in

-                                RFC 4646 or ISO 639-2 language code format.

-

-  @param[out]  ControllerName   A pointer to the Unicode string to return.

-                                This Unicode string is the name of the

-                                controller specified by ControllerHandle and

-                                ChildHandle in the language specified by

-                                Language from the point of view of the driver

-                                specified by This.

-

-  @retval EFI_SUCCESS           The Unicode string for the user readable name in

-                                the language specified by Language for the

-                                driver specified by This was returned in

-                                DriverName.

-

-  @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.

-

-  @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid

-                                EFI_HANDLE.

-

-  @retval EFI_INVALID_PARAMETER Language is NULL.

-

-  @retval EFI_INVALID_PARAMETER ControllerName is NULL.

-

-  @retval EFI_UNSUPPORTED       The driver specified by This is not currently

-                                managing the controller specified by

-                                ControllerHandle and ChildHandle.

-

-  @retval EFI_UNSUPPORTED       The driver specified by This does not support

-                                the language specified by Language.

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcComponentNameGetControllerName (

-  IN  EFI_COMPONENT_NAME_PROTOCOL  * This,

-  IN  EFI_HANDLE                   ControllerHandle,

-  IN  EFI_HANDLE                   ChildHandle        OPTIONAL,

-  IN  CHAR8                        *Language,

-  OUT CHAR16                       **ControllerName

-  )

-{

-  EFI_PXE_BASE_CODE_PROTOCOL  *PxeBc;

-  EFI_HANDLE                  NicHandle;

-  EFI_STATUS                  Status;

-

-  if (ControllerHandle == NULL || ChildHandle != NULL) {

-    return EFI_UNSUPPORTED;

-  }

-

-  NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiArpProtocolGuid);

-  if (NicHandle == NULL) {

-    NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiDhcp4ProtocolGuid);

-

-    if (NicHandle == NULL) {

-      NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiIp4ProtocolGuid);

-

-      if (NicHandle == NULL) {

-        NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiUdp4ProtocolGuid);

-

-        if (NicHandle == NULL) {

-          NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiMtftp4ProtocolGuid);

-

-          if (NicHandle == NULL) {

-            return EFI_UNSUPPORTED;

-          }

-        }

-      }

-    }

-  }

-

-  Status = gBS->OpenProtocol (

-                  NicHandle,

-                  &gEfiPxeBaseCodeProtocolGuid,

-                  (VOID **) &PxeBc,

-                  NULL,

-                  NULL,

-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

-                  );

-

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  return LookupUnicodeString2 (

-           Language,

-           This->SupportedLanguages,

-           mPxeBcControllerNameTable,

-           ControllerName,

-           (BOOLEAN)(This == &gPxeBcComponentName)

-           );

-}

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.c b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.c
deleted file mode 100644
index f7b975f299..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.c
+++ /dev/null
@@ -1,1999 +0,0 @@
-/** @file

-  Support for PxeBc dhcp functions.

-

-Copyright (c) 2013, Red Hat, Inc.

-Copyright (c) 2007 - 2018, 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

-which 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 "PxeBcImpl.h"

-

-//

-// This is a map from the interested DHCP4 option tags' index to the tag value.

-//

-UINT8 mInterestedDhcp4Tags[PXEBC_DHCP4_TAG_INDEX_MAX] = {

-  DHCP4_TAG_BOOTFILE_LEN,

-  DHCP4_TAG_VENDOR,

-  DHCP4_TAG_OVERLOAD,

-  DHCP4_TAG_MSG_TYPE,

-  DHCP4_TAG_SERVER_ID,

-  DHCP4_TAG_VENDOR_CLASS_ID,

-  DHCP4_TAG_BOOTFILE

-};

-

-

-/**

-  This function initialize the DHCP4 message instance.

-

-  This function will pad each item of dhcp4 message packet.

-

-  @param  Seed    Pointer to the message instance of the DHCP4 packet.

-  @param  Udp4    Pointer to the EFI_UDP4_PROTOCOL instance.

-

-**/

-VOID

-PxeBcInitSeedPacket (

-  IN EFI_DHCP4_PACKET  *Seed,

-  IN EFI_UDP4_PROTOCOL *Udp4

-  )

-{

-  EFI_SIMPLE_NETWORK_MODE Mode;

-  EFI_DHCP4_HEADER        *Header;

-

-  Udp4->GetModeData (Udp4, NULL, NULL, NULL, &Mode);

-

-  Seed->Size    = sizeof (EFI_DHCP4_PACKET);

-  Seed->Length  = sizeof (Seed->Dhcp4);

-

-  Header        = &Seed->Dhcp4.Header;

-

-  ZeroMem (Header, sizeof (EFI_DHCP4_HEADER));

-  Header->OpCode    = PXEBC_DHCP4_OPCODE_REQUEST;

-  Header->HwType    = Mode.IfType;

-  Header->HwAddrLen = (UINT8) Mode.HwAddressSize;

-  CopyMem (Header->ClientHwAddr, &Mode.CurrentAddress, Header->HwAddrLen);

-

-  Seed->Dhcp4.Magik     = PXEBC_DHCP4_MAGIC;

-  Seed->Dhcp4.Option[0] = DHCP4_TAG_EOP;

-}

-

-

-/**

-  Copy the DCHP4 packet from srouce to destination.

-

-  @param[in]  Dst          Pointer to the cache buffer for DHCPv4 packet.

-  @param[in]  Src          Pointer to the DHCPv4 packet to be cached.

-

-  @retval     EFI_SUCCESS                Packet is copied.

-  @retval     EFI_BUFFER_TOO_SMALL       Cache buffer is not big enough to hold the packet.

-

-**/

-EFI_STATUS

-PxeBcCopyEfiDhcp4Packet (

-  IN EFI_DHCP4_PACKET  *Dst,

-  IN EFI_DHCP4_PACKET  *Src

-  )

-{

-  if (Dst->Size < Src->Length) {

-    return EFI_BUFFER_TOO_SMALL;

-  }

-

-  CopyMem (&Dst->Dhcp4, &Src->Dhcp4, Src->Length);

-  Dst->Length = Src->Length;

-  return EFI_SUCCESS;

-}

-

-

-/**

-  Copy the dhcp4 packet to the PxeBc private data and parse the dhcp4 packet.

-

-  @param  Private       Pointer to PxeBc private data.

-  @param  OfferIndex    Index of cached packets as complements of pxe mode data,

-                        the index is maximum offer number.

-

-  @retval     EFI_SUCCESS                Cache and parse the packet successfully.

-  @retval     EFI_BUFFER_TOO_SMALL       Cache buffer is not big enough to hold the packet.

-

-**/

-EFI_STATUS

-PxeBcCopyProxyOffer (

-  IN PXEBC_PRIVATE_DATA  *Private,

-  IN UINT32              OfferIndex

-  )

-{

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-  EFI_DHCP4_PACKET        *Offer;

-  EFI_STATUS              Status;

-

-  ASSERT (OfferIndex < Private->NumOffers);

-  ASSERT (OfferIndex < PXEBC_MAX_OFFER_NUM);

-

-  Mode  = Private->PxeBc.Mode;

-  Offer = &Private->Dhcp4Offers[OfferIndex].Packet.Offer;

-

-  Status = PxeBcCopyEfiDhcp4Packet (&Private->ProxyOffer.Packet.Offer, Offer);

-  if (EFI_ERROR(Status)) {

-    return Status;

-  }

-  CopyMem (&Mode->ProxyOffer, &Offer->Dhcp4, Offer->Length);

-  Mode->ProxyOfferReceived = TRUE;

-

-  PxeBcParseCachedDhcpPacket (&Private->ProxyOffer);

-  return EFI_SUCCESS;

-}

-

-

-/**

-  Parse the cached dhcp packet.

-

-  @param  CachedPacket  Pointer to cached dhcp packet.

-

-  @retval TRUE          Succeed to parse and validation.

-  @retval FALSE         Fail to parse or validation.

-

-**/

-BOOLEAN

-PxeBcParseCachedDhcpPacket (

-  IN PXEBC_CACHED_DHCP4_PACKET  *CachedPacket

-  )

-{

-  EFI_DHCP4_PACKET        *Offer;

-  EFI_DHCP4_PACKET_OPTION **Options;

-  EFI_DHCP4_PACKET_OPTION *Option;

-  UINT8                   OfferType;

-  UINTN                   Index;

-  UINT8                   *Ptr8;

-

-  CachedPacket->IsPxeOffer = FALSE;

-  ZeroMem (CachedPacket->Dhcp4Option, sizeof (CachedPacket->Dhcp4Option));

-  ZeroMem (&CachedPacket->PxeVendorOption, sizeof (CachedPacket->PxeVendorOption));

-

-  Offer   = &CachedPacket->Packet.Offer;

-  Options = CachedPacket->Dhcp4Option;

-

-  //

-  // Parse interested dhcp options and store their pointers in CachedPacket->Dhcp4Option.

-  // First, try to parse DHCPv4 options from the DHCP optional parameters field.

-  //

-  for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {

-    Options[Index] = PxeBcParseExtendOptions (

-                       Offer->Dhcp4.Option,

-                       GET_OPTION_BUFFER_LEN (Offer),

-                       mInterestedDhcp4Tags[Index]

-                       );

-  }

-  //

-  // Second, Check if bootfilename and serverhostname is overloaded to carry DHCP options refers to rfc-2132.

-  // If yes, try to parse options from the BootFileName field, then ServerName field.

-  //

-  Option = Options[PXEBC_DHCP4_TAG_INDEX_OVERLOAD];

-  if (Option != NULL) {

-    if ((Option->Data[0] & PXEBC_DHCP4_OVERLOAD_FILE) != 0) {

-      for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {

-        if (Options[Index] == NULL) {

-          Options[Index] = PxeBcParseExtendOptions (

-                             (UINT8 *) Offer->Dhcp4.Header.BootFileName,

-                             sizeof (Offer->Dhcp4.Header.BootFileName),

-                             mInterestedDhcp4Tags[Index]

-                             );

-        }

-      }

-    }

-    if ((Option->Data[0] & PXEBC_DHCP4_OVERLOAD_SERVER_NAME) != 0) {

-      for (Index = 0; Index < PXEBC_DHCP4_TAG_INDEX_MAX; Index++) {

-        if (Options[Index] == NULL) {

-          Options[Index] = PxeBcParseExtendOptions (

-                             (UINT8 *) Offer->Dhcp4.Header.ServerName,

-                             sizeof (Offer->Dhcp4.Header.ServerName),

-                             mInterestedDhcp4Tags[Index]

-                             );

-        }

-      }

-    }

-  }

-

-  //

-  // Check whether is an offer with PXEClient or not.

-  //

-  Option = Options[PXEBC_DHCP4_TAG_INDEX_CLASS_ID];

-  if ((Option != NULL) && (Option->Length >= 9) &&

-    (CompareMem (Option->Data, DEFAULT_CLASS_ID_DATA, 9) == 0)) {

-

-    CachedPacket->IsPxeOffer = TRUE;

-  }

-

-  //

-  // Parse pxe vendor options and store their content/pointers in CachedPacket->PxeVendorOption.

-  //

-  Option = Options[PXEBC_DHCP4_TAG_INDEX_VENDOR];

-  if (CachedPacket->IsPxeOffer && (Option != NULL)) {

-

-    if (!PxeBcParseVendorOptions (Option, &CachedPacket->PxeVendorOption)) {

-      return FALSE;

-    }

-  }

-

-

-  //

-  // Parse PXE boot file name:

-  // According to PXE spec, boot file name should be read from DHCP option 67 (bootfile name) if present.

-  // Otherwise, read from boot file field in DHCP header.

-  //

-  if (Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {

-    //

-    // RFC 2132, Section 9.5 does not strictly state Bootfile name (option 67) is null

-    // terminated string. So force to append null terminated character at the end of string.

-    //

-    Ptr8 =  (UINT8*)&Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Data[0];

-    Ptr8 += Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Length;

-    if (*(Ptr8 - 1) != '\0') {

-      *Ptr8 = '\0';

-    }

-  } else if (Offer->Dhcp4.Header.BootFileName[0] != 0) {

-    //

-    // If the bootfile is not present and bootfilename is present in dhcp packet, just parse it.

-    // And do not count dhcp option header, or else will destroy the serverhostname.

-    //

-    // Make sure "BootFileName" is not overloaded.

-    //

-    if (Options[PXEBC_DHCP4_TAG_INDEX_OVERLOAD] == NULL ||

-        (Options[PXEBC_DHCP4_TAG_INDEX_OVERLOAD]->Data[0] & PXEBC_DHCP4_OVERLOAD_FILE) == 0) {

-      Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] = (EFI_DHCP4_PACKET_OPTION *) (&Offer->Dhcp4.Header.BootFileName[0] -

-                                            OFFSET_OF (EFI_DHCP4_PACKET_OPTION, Data[0]));

-    }

-  }

-

-  //

-  // Determine offer type of the dhcp packet.

-  //

-  Option = Options[PXEBC_DHCP4_TAG_INDEX_MSG_TYPE];

-  if ((Option == NULL) || (Option->Data[0] == 0)) {

-    //

-    // It's a bootp offer

-    //

-    Option = CachedPacket->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE];

-    if (Option == NULL) {

-      //

-      // bootp offer without bootfilename, discard it.

-      //

-      return FALSE;

-    }

-

-    OfferType = DHCP4_PACKET_TYPE_BOOTP;

-

-  } else {

-

-    if (IS_VALID_DISCOVER_VENDOR_OPTION (CachedPacket->PxeVendorOption.BitMap)) {

-      //

-      // It's a pxe10 offer with PXEClient and discover vendor option.

-      //

-      OfferType = DHCP4_PACKET_TYPE_PXE10;

-    } else if (IS_VALID_MTFTP_VENDOR_OPTION (CachedPacket->PxeVendorOption.BitMap)) {

-      //

-      // It's a wfm11a offer with PXEClient and mtftp vendor option, and

-      // return false since mtftp not supported currently.

-      //

-      return FALSE;

-    } else {

-      //

-      // If the binl offer with only PXEClient.

-      //

-      OfferType = (UINT8) ((CachedPacket->IsPxeOffer) ? DHCP4_PACKET_TYPE_BINL : DHCP4_PACKET_TYPE_DHCP_ONLY);

-    }

-  }

-

-  CachedPacket->OfferType = OfferType;

-

-  return TRUE;

-}

-

-

-/**

-  Offer dhcp service with a BINL dhcp offer.

-

-  @param  Private   Pointer to PxeBc private data.

-  @param  Index     Index of cached packets as complements of pxe mode data,

-                    the index is maximum offer number.

-

-  @retval TRUE      Offer the service successfully under priority BINL.

-  @retval FALSE     Boot Service failed, parse cached dhcp packet failed or this

-                    BINL ack cannot find options set or bootfile name specified.

-

-**/

-BOOLEAN

-PxeBcTryBinl (

-  IN PXEBC_PRIVATE_DATA  *Private,

-  IN UINT32              Index

-  )

-{

-  EFI_DHCP4_PACKET          *Offer;

-  EFI_IP_ADDRESS            ServerIp;

-  EFI_STATUS                Status;

-  PXEBC_CACHED_DHCP4_PACKET *CachedPacket;

-  EFI_DHCP4_PACKET          *Reply;

-

-  ASSERT (Index < PXEBC_MAX_OFFER_NUM);

-  ASSERT (Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_BINL);

-

-  Offer = &Private->Dhcp4Offers[Index].Packet.Offer;

-

-  //

-  // Use siaddr(next server) in DHCPOFFER packet header, if zero, use option 54(server identifier)

-  // in DHCPOFFER packet.

-  // (It does not comply with PXE Spec, Ver2.1)

-  //

-  if (EFI_IP4_EQUAL (&Offer->Dhcp4.Header.ServerAddr.Addr, &mZeroIp4Addr)) {

-    CopyMem (

-      &ServerIp.Addr[0],

-      Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID]->Data,

-      sizeof (EFI_IPv4_ADDRESS)

-      );

-  } else {

-    CopyMem (

-      &ServerIp.Addr[0],

-      &Offer->Dhcp4.Header.ServerAddr,

-      sizeof (EFI_IPv4_ADDRESS)

-      );

-  }

-  if (ServerIp.Addr[0] == 0) {

-    return FALSE;

-  }

-

-  CachedPacket = &Private->ProxyOffer;

-  Reply        = &CachedPacket->Packet.Offer;

-

-  Status = PxeBcDiscvBootService (

-            Private,

-            0,

-            NULL,

-            FALSE,

-            &ServerIp,

-            0,

-            NULL,

-            FALSE,

-            Reply

-            );

-  if (EFI_ERROR (Status)) {

-    return FALSE;

-  }

-

-  if (!PxeBcParseCachedDhcpPacket (CachedPacket)) {

-    return FALSE;

-  }

-

-  if ((CachedPacket->OfferType != DHCP4_PACKET_TYPE_PXE10) &&

-      (CachedPacket->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL)) {

-    //

-    // This BINL ack doesn't have discovery options set or bootfile name

-    // specified.

-    //

-    return FALSE;

-  }

-

-  Private->PxeBc.Mode->ProxyOfferReceived = TRUE;

-  CopyMem (&Private->PxeBc.Mode->ProxyOffer, &Reply->Dhcp4, Reply->Length);

-

-  return TRUE;

-}

-

-

-/**

-  Offer dhcp service for each proxy with a BINL dhcp offer.

-

-  @param  Private     Pointer to PxeBc private data

-  @param  OfferIndex  Pointer to the index of cached packets as complements of

-                      pxe mode data, the index is maximum offer number.

-

-  @return If there is no service needed offer return FALSE, otherwise TRUE.

-

-**/

-BOOLEAN

-PxeBcTryBinlProxy (

-  IN  PXEBC_PRIVATE_DATA  *Private,

-  OUT UINT32              *OfferIndex

-  )

-{

-  UINT32  Index;

-

-  for (Index = 0; Index < Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]; Index++) {

-

-    *OfferIndex = Private->BinlIndex[Index];

-    //

-    // Try this BINL proxy offer

-    //

-    if (PxeBcTryBinl (Private, *OfferIndex)) {

-      return TRUE;

-    }

-  }

-

-  return FALSE;

-}

-

-

-/**

-  This function is to check the selected proxy offer (include BINL dhcp offer and

-  DHCP_ONLY offer ) and set the flag and copy the DHCP packets to the Pxe base code

-  mode structure.

-

-  @param  Private          Pointer to PxeBc private data.

-

-  @retval EFI_SUCCESS                Operational successful.

-  @retval EFI_NO_RESPONSE            Offer dhcp service failed.

-  @retval EFI_BUFFER_TOO_SMALL       Failed to copy the packet to Pxe base code mode.

-

-**/

-EFI_STATUS

-PxeBcCheckSelectedOffer (

-  IN PXEBC_PRIVATE_DATA  *Private

-  )

-{

-  PXEBC_CACHED_DHCP4_PACKET *SelectedOffer;

-  EFI_DHCP4_PACKET_OPTION   **Options;

-  UINT32                    Index;

-  EFI_DHCP4_PACKET          *Offer;

-  UINT32                    ProxyOfferIndex;

-  EFI_STATUS                Status;

-  EFI_PXE_BASE_CODE_MODE    *Mode;

-  EFI_DHCP4_PACKET          *Ack;

-

-  ASSERT (Private->SelectedOffer != 0);

-

-  Status        = EFI_SUCCESS;

-  SelectedOffer = &Private->Dhcp4Offers[Private->SelectedOffer - 1];

-  Options       = SelectedOffer->Dhcp4Option;

-

-  if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_BINL) {

-    //

-    // The addresses are acquired from a BINL dhcp offer, try BINL to get

-    // the bootfile name

-    //

-    if (!PxeBcTryBinl (Private, Private->SelectedOffer - 1)) {

-      Status = EFI_NO_RESPONSE;

-    }

-  } else if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_DHCP_ONLY) {

-    //

-    // The selected offer to finish the D.O.R.A. is a DHCP only offer, we need

-    // try proxy offers if there are some, othewise the bootfile name must be

-    // set in this DHCP only offer.

-    //

-    if (Private->GotProxyOffer) {

-      //

-      // Get rid of the compiler warning.

-      //

-      ProxyOfferIndex = 0;

-      if (Private->SortOffers) {

-        //

-        // The offers are sorted before selecting, the proxy offer type must be

-        // already determined.

-        //

-        ASSERT (Private->ProxyIndex[Private->ProxyOfferType] > 0);

-

-        if (Private->ProxyOfferType == DHCP4_PACKET_TYPE_BINL) {

-          //

-          // We buffer all received BINL proxy offers, try them all one by one

-          //

-          if (!PxeBcTryBinlProxy (Private, &ProxyOfferIndex)) {

-            Status = EFI_NO_RESPONSE;

-          }

-        } else {

-          //

-          // For other types, only one proxy offer is buffered.

-          //

-          ProxyOfferIndex = Private->ProxyIndex[Private->ProxyOfferType] - 1;

-        }

-      } else {

-        //

-        // The proxy offer type is not determined, choose proxy offer in the

-        // received order.

-        //

-        Status = EFI_NO_RESPONSE;

-

-        ASSERT (Private->NumOffers < PXEBC_MAX_OFFER_NUM);

-        for (Index = 0; Index < Private->NumOffers; Index++) {

-

-          Offer = &Private->Dhcp4Offers[Index].Packet.Offer;

-          if (!IS_PROXY_DHCP_OFFER (Offer)) {

-            //

-            // Skip non proxy dhcp offers.

-            //

-            continue;

-          }

-

-          if (Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_BINL) {

-            //

-            // Try BINL

-            //

-            if (!PxeBcTryBinl (Private, Index)) {

-              //

-              // Failed, skip to the next offer

-              //

-              continue;

-            }

-          }

-

-          Private->ProxyOfferType = Private->Dhcp4Offers[Index].OfferType;

-          ProxyOfferIndex         = Index;

-          Status                  = EFI_SUCCESS;

-          break;

-        }

-      }

-

-      if (!EFI_ERROR (Status) && (Private->ProxyOfferType != DHCP4_PACKET_TYPE_BINL)) {

-        //

-        // Copy the proxy offer to Mode and set the flag

-        //

-        Status = PxeBcCopyProxyOffer (Private, ProxyOfferIndex);

-      }

-    } else {

-      //

-      // No proxy offer is received, the bootfile name MUST be set.

-      //

-      ASSERT (Options[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL);

-    }

-  }

-

-  if (!EFI_ERROR (Status)) {

-    //

-    // Everything is OK, set the flag and copy the DHCP packets.

-    //

-    Mode  = Private->PxeBc.Mode;

-    Offer = &SelectedOffer->Packet.Offer;

-

-    //

-    // The discover packet is already copied, just set flag here.

-    //

-    Mode->DhcpDiscoverValid = TRUE;

-

-    Ack                     = &Private->Dhcp4Ack.Packet.Ack;

-    if (SelectedOffer->OfferType == DHCP4_PACKET_TYPE_BOOTP) {

-      //

-      // Other type of ACK is already cached. Bootp is special that we should

-      // use the bootp reply as the ACK and put it into the DHCP_ONLY buffer.

-      //

-      Status = PxeBcCopyEfiDhcp4Packet (&Private->Dhcp4Ack.Packet.Ack, Offer);

-    }

-

-    PxeBcParseCachedDhcpPacket (&Private->Dhcp4Ack);

-

-    Mode->DhcpAckReceived = TRUE;

-

-    //

-    // Copy the dhcp ack.

-    //

-    CopyMem (&Mode->DhcpAck, &Ack->Dhcp4, Ack->Length);

-  }

-

-  return Status;

-}

-

-

-/**

-  Cache the Dhcp4 packet offer, Parse and validate each option of the packet.

-

-  @param  Private    Pointer to PxeBc private data.

-  @param  RcvdOffer  Pointer to the received Dhcp proxy offer packet.

-

-  @retval     EFI_SUCCESS      Cache and parse the packet successfully.

-  @retval     Others           Operation failed.

-

-**/

-EFI_STATUS

-PxeBcCacheDhcpOffer (

-  IN PXEBC_PRIVATE_DATA  *Private,

-  IN EFI_DHCP4_PACKET    *RcvdOffer

-  )

-{

-  PXEBC_CACHED_DHCP4_PACKET *CachedOffer;

-  EFI_DHCP4_PACKET          *Offer;

-  UINT8                     OfferType;

-  EFI_STATUS                Status;

-

-  CachedOffer = &Private->Dhcp4Offers[Private->NumOffers];

-  Offer       = &CachedOffer->Packet.Offer;

-

-  //

-  // Cache the orignal dhcp packet

-  //

-  Status = PxeBcCopyEfiDhcp4Packet (Offer, RcvdOffer);

-  if (EFI_ERROR(Status)) {

-    return Status;

-  }

-

-  //

-  // Parse and validate the options (including dhcp option and vendor option)

-  //

-  if (!PxeBcParseCachedDhcpPacket (CachedOffer)) {

-    return EFI_ABORTED;

-  }

-

-  OfferType = CachedOffer->OfferType;

-  if (OfferType >= DHCP4_PACKET_TYPE_MAX) {

-    return EFI_ABORTED;

-  }

-

-  if (OfferType == DHCP4_PACKET_TYPE_BOOTP) {

-

-    if (Private->BootpIndex != 0) {

-      //

-      // Only cache the first bootp offer, discard others.

-      //

-      return EFI_ABORTED;

-    } else {

-      //

-      // Take as a dhcp only offer, but record index specifically.

-      //

-      Private->BootpIndex = Private->NumOffers + 1;

-    }

-  } else {

-

-    if (IS_PROXY_DHCP_OFFER (Offer)) {

-      //

-      // It's a proxy dhcp offer with no your address, including pxe10, wfm11a or binl offer.

-      //

-      Private->GotProxyOffer = TRUE;

-

-      if (OfferType == DHCP4_PACKET_TYPE_BINL) {

-        //

-        // Cache all binl offers.

-        //

-        Private->BinlIndex[Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]] = Private->NumOffers;

-        Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL]++;

-      } else if (Private->ProxyIndex[OfferType] != 0) {

-        //

-        // Only cache the first pxe10/wfm11a offers each, discard the others.

-        //

-        return EFI_ABORTED;

-      } else {

-        //

-        // Record index of the proxy dhcp offer with type other than binl.

-        //

-        Private->ProxyIndex[OfferType] = Private->NumOffers + 1;

-      }

-    } else {

-      //

-      // It's a dhcp offer with your address.

-      //

-      ASSERT (Private->ServerCount[OfferType] < PXEBC_MAX_OFFER_NUM);

-      Private->OfferIndex[OfferType][Private->ServerCount[OfferType]] = Private->NumOffers;

-      Private->ServerCount[OfferType]++;

-    }

-  }

-

-  //

-  // Count the accepted offers.

-  //

-  Private->NumOffers++;

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Switch the Ip4 policy to static.

-

-  @param[in]  Private             The pointer to PXEBC_PRIVATE_DATA.

-

-  @retval     EFI_SUCCESS         The policy is already configured to static.

-  @retval     Others              Other error as indicated..

-

-**/

-EFI_STATUS

-PxeBcSetIp4Policy (

-  IN PXEBC_PRIVATE_DATA            *Private

-  )

-{

-  EFI_STATUS                   Status;

-  EFI_IP4_CONFIG2_PROTOCOL     *Ip4Config2;

-  EFI_IP4_CONFIG2_POLICY       Policy;

-  UINTN                        DataSize;

-

-  Ip4Config2 = Private->Ip4Config2;

-  DataSize = sizeof (EFI_IP4_CONFIG2_POLICY);

-  Status = Ip4Config2->GetData (

-                       Ip4Config2,

-                       Ip4Config2DataTypePolicy,

-                       &DataSize,

-                       &Policy

-                       );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  if (Policy != Ip4Config2PolicyStatic) {

-    Policy = Ip4Config2PolicyStatic;

-    Status= Ip4Config2->SetData (

-                          Ip4Config2,

-                          Ip4Config2DataTypePolicy,

-                          sizeof (EFI_IP4_CONFIG2_POLICY),

-                          &Policy

-                          );

-    if (EFI_ERROR (Status)) {

-      return Status;

-    }

-  }

-

-  return  EFI_SUCCESS;

-}

-

-

-/**

-  Select the specified proxy offer, such as BINL, DHCP_ONLY and so on.

-  If the proxy does not exist, try offers with bootfile.

-

-  @param  Private   Pointer to PxeBc private data.

-

-**/

-VOID

-PxeBcSelectOffer (

-  IN PXEBC_PRIVATE_DATA  *Private

-  )

-{

-  UINT32            Index;

-  UINT32            OfferIndex;

-  EFI_DHCP4_PACKET  *Offer;

-

-  Private->SelectedOffer = 0;

-

-  if (Private->SortOffers) {

-    //

-    // Select offer according to the priority

-    //

-    if (Private->ServerCount[DHCP4_PACKET_TYPE_PXE10] > 0) {

-      //

-      // DHCP with PXE10

-      //

-      Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_PXE10][0] + 1;

-

-    } else if (Private->ServerCount[DHCP4_PACKET_TYPE_WFM11A] > 0) {

-      //

-      // DHCP with WfM

-      //

-      Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_WFM11A][0] + 1;

-

-    } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_PXE10] > 0) &&

-             (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)

-            ) {

-      //

-      // DHCP only and proxy DHCP with PXE10

-      //

-      Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;

-      Private->ProxyOfferType     = DHCP4_PACKET_TYPE_PXE10;

-

-    } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_WFM11A] > 0) &&

-             (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)

-            ) {

-      //

-      // DHCP only and proxy DHCP with WfM

-      //

-      Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;

-      Private->ProxyOfferType     = DHCP4_PACKET_TYPE_WFM11A;

-

-    } else if (Private->ServerCount[DHCP4_PACKET_TYPE_BINL] > 0) {

-      //

-      // DHCP with BINL

-      //

-      Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_BINL][0] + 1;

-

-    } else if ((Private->ProxyIndex[DHCP4_PACKET_TYPE_BINL] > 0) &&

-             (Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY] > 0)

-            ) {

-      //

-      // DHCP only and proxy DHCP with BINL

-      //

-      Private->SelectedOffer = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][0] + 1;

-      Private->ProxyOfferType     = DHCP4_PACKET_TYPE_BINL;

-

-    } else {

-      //

-      // Try offers with bootfile

-      //

-      for (Index = 0; Index < Private->ServerCount[DHCP4_PACKET_TYPE_DHCP_ONLY]; Index++) {

-        //

-        // Select the first DHCP only offer with bootfile

-        //

-        OfferIndex = Private->OfferIndex[DHCP4_PACKET_TYPE_DHCP_ONLY][Index];

-        if (Private->Dhcp4Offers[OfferIndex].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {

-          Private->SelectedOffer = OfferIndex + 1;

-          break;

-        }

-      }

-

-      if (Private->SelectedOffer == 0) {

-        //

-        // Select the Bootp reply with bootfile if any

-        //

-        Private->SelectedOffer = Private->BootpIndex;

-      }

-    }

-  } else {

-    //

-    // Try the offers in the received order.

-    //

-    for (Index = 0; Index < Private->NumOffers; Index++) {

-

-      Offer = &Private->Dhcp4Offers[Index].Packet.Offer;

-

-      if (IS_PROXY_DHCP_OFFER (Offer)) {

-        //

-        // Skip proxy offers

-        //

-        continue;

-      }

-

-      if ((Private->Dhcp4Offers[Index].OfferType == DHCP4_PACKET_TYPE_DHCP_ONLY) &&

-          ((!Private->GotProxyOffer) && (Private->Dhcp4Offers[Index].Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] == NULL))) {

-        //

-        // DHCP only offer but no proxy offer received and no bootfile option in this offer

-        //

-        continue;

-      }

-

-      Private->SelectedOffer = Index + 1;

-      break;

-    }

-  }

-}

-

-

-/**

-  Callback routine.

-

-  EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver

-  to intercept events that occurred in the configuration process. This structure

-  provides advanced control of each state transition of the DHCP process. The

-  returned status code determines the behavior of the EFI DHCPv4 Protocol driver.

-  There are three possible returned values, which are described in the following

-  table.

-

-  @param  This                  Pointer to the EFI DHCPv4 Protocol instance that is used to

-                                configure this callback function.

-  @param  Context               Pointer to the context that is initialized by

-                                EFI_DHCP4_PROTOCOL.Configure().

-  @param  CurrentState          The current operational state of the EFI DHCPv4 Protocol

-                                driver.

-  @param  Dhcp4Event            The event that occurs in the current state, which usually means a

-                                state transition.

-  @param  Packet                The DHCP packet that is going to be sent or already received.

-  @param  NewPacket             The packet that is used to replace the above Packet.

-

-  @retval EFI_SUCCESS           Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.

-  @retval EFI_NOT_READY         Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol

-                                driver will continue to wait for more DHCPOFFER packets until the retry

-                                timeout expires.

-  @retval EFI_ABORTED           Tells the EFI DHCPv4 Protocol driver to abort the current process and

-                                return to the Dhcp4Init or Dhcp4InitReboot state.

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDhcpCallBack (

-  IN EFI_DHCP4_PROTOCOL                * This,

-  IN VOID                              *Context,

-  IN EFI_DHCP4_STATE                   CurrentState,

-  IN EFI_DHCP4_EVENT                   Dhcp4Event,

-  IN EFI_DHCP4_PACKET                  * Packet OPTIONAL,

-  OUT EFI_DHCP4_PACKET                 **NewPacket OPTIONAL

-  )

-{

-  PXEBC_PRIVATE_DATA                  *Private;

-  EFI_PXE_BASE_CODE_MODE              *Mode;

-  EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;

-  EFI_DHCP4_PACKET_OPTION             *MaxMsgSize;

-  UINT16                              Value;

-  EFI_STATUS                          Status;

-  BOOLEAN                             Received;

-  EFI_DHCP4_HEADER                    *DhcpHeader;

-

-  if ((Dhcp4Event != Dhcp4RcvdOffer) &&

-      (Dhcp4Event != Dhcp4SelectOffer) &&

-      (Dhcp4Event != Dhcp4SendDiscover) &&

-      (Dhcp4Event != Dhcp4RcvdAck) &&

-      (Dhcp4Event != Dhcp4SendRequest)) {

-    return EFI_SUCCESS;

-  }

-

-  Private   = (PXEBC_PRIVATE_DATA *) Context;

-  Mode      = Private->PxeBc.Mode;

-  Callback  = Private->PxeBcCallback;

-

-  //

-  // Override the Maximum DHCP Message Size.

-  //

-  MaxMsgSize = PxeBcParseExtendOptions (

-                Packet->Dhcp4.Option,

-                GET_OPTION_BUFFER_LEN (Packet),

-                DHCP4_TAG_MAXMSG

-                );

-  if (MaxMsgSize != NULL) {

-    Value = HTONS (PXEBC_DHCP4_MAX_PACKET_SIZE);

-    CopyMem (MaxMsgSize->Data, &Value, sizeof (Value));

-  }

-

-  if ((Dhcp4Event != Dhcp4SelectOffer) && (Callback != NULL)) {

-    Received = (BOOLEAN) ((Dhcp4Event == Dhcp4RcvdOffer) || (Dhcp4Event == Dhcp4RcvdAck));

-    Status = Callback->Callback (

-                        Callback,

-                        Private->Function,

-                        Received,

-                        Packet->Length,

-                        (EFI_PXE_BASE_CODE_PACKET *) &Packet->Dhcp4

-                        );

-    if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {

-      return EFI_ABORTED;

-    }

-  }

-

-  Status = EFI_SUCCESS;

-

-  switch (Dhcp4Event) {

-

-  case Dhcp4SendDiscover:

-  case Dhcp4SendRequest:

-    if (Packet->Length > PXEBC_DHCP4_MAX_PACKET_SIZE) {

-      //

-      // If the to be sent packet exceeds the maximum length, abort the DHCP process.

-      //

-      Status = EFI_ABORTED;

-      break;

-    }

-

-    if (Mode->SendGUID) {

-      //

-      // send the system GUID instead of the MAC address as the hardware address

-      // in the DHCP packet header.

-      //

-      DhcpHeader = &Packet->Dhcp4.Header;

-

-      if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) DhcpHeader->ClientHwAddr))) {

-        //

-        // GUID not yet set - send all 0xff's to show programable (via SetVariable)

-        // SetMem(DHCPV4_OPTIONS_BUFFER.DhcpPlatformId.Guid, sizeof(EFI_GUID), 0xff);

-        // GUID not yet set - send all 0's to show not programable

-        //

-        DEBUG ((EFI_D_WARN, "PXE: Failed to read system GUID from the smbios table!\n"));

-        ZeroMem (DhcpHeader->ClientHwAddr, sizeof (EFI_GUID));

-      }

-

-      DhcpHeader->HwAddrLen = (UINT8) sizeof (EFI_GUID);

-    }

-

-    if (Dhcp4Event == Dhcp4SendDiscover) {

-      //

-      // Cache the dhcp discover packet, of which some information will be used later.

-      //

-      CopyMem (Mode->DhcpDiscover.Raw, &Packet->Dhcp4, Packet->Length);

-    }

-

-    break;

-

-  case Dhcp4RcvdOffer:

-    Status = EFI_NOT_READY;

-    if (Packet->Length > PXEBC_DHCP4_MAX_PACKET_SIZE) {

-      //

-      // Ignore the incoming Offers which exceed the maximum length.

-      //

-      break;

-    }

-

-    if (Private->NumOffers < PXEBC_MAX_OFFER_NUM) {

-      //

-      // Cache the dhcp offers in Private->Dhcp4Offers[]

-      // If error happens, just ignore this packet and continue to wait more offer.

-      //

-      PxeBcCacheDhcpOffer (Private, Packet);

-    }

-

-    break;

-

-  case Dhcp4SelectOffer:

-    //

-    // Select an offer, if succeeded, Private->SelectedOffer points to

-    // the index of the selected one.

-    //

-    PxeBcSelectOffer (Private);

-

-    if (Private->SelectedOffer == 0) {

-      Status = EFI_ABORTED;

-    } else {

-      *NewPacket = &Private->Dhcp4Offers[Private->SelectedOffer - 1].Packet.Offer;

-    }

-

-    break;

-

-  case Dhcp4RcvdAck:

-    //

-    // Cache Ack

-    //

-    ASSERT (Private->SelectedOffer != 0);

-

-    Status = PxeBcCopyEfiDhcp4Packet (&Private->Dhcp4Ack.Packet.Ack, Packet);

-    if (EFI_ERROR (Status)) {

-      return EFI_ABORTED;

-    }

-    break;

-

-  default:

-    break;

-  }

-

-  return Status;

-}

-

-

-/**

-  Initialize the DHCP options and build the option list.

-

-  @param  Private          Pointer to PxeBc private data.

-  @param  OptList          Pointer to a DHCP option list.

-

-  @param  IsDhcpDiscover   Discover dhcp option or not.

-

-  @return The index item number of the option list.

-

-**/

-UINT32

-PxeBcBuildDhcpOptions (

-  IN PXEBC_PRIVATE_DATA            *Private,

-  IN EFI_DHCP4_PACKET_OPTION       **OptList,

-  IN BOOLEAN                       IsDhcpDiscover

-  )

-{

-  UINT32                    Index;

-  PXEBC_DHCP4_OPTION_ENTRY  OptEnt;

-  UINT16                    Value;

-

-  Index       = 0;

-  OptList[0]  = (EFI_DHCP4_PACKET_OPTION *) Private->OptionBuffer;

-

-  if (!IsDhcpDiscover) {

-    //

-    // Append message type.

-    //

-    OptList[Index]->OpCode  = DHCP4_TAG_MSG_TYPE;

-    OptList[Index]->Length  = 1;

-    OptEnt.Mesg             = (PXEBC_DHCP4_OPTION_MESG *) OptList[Index]->Data;

-    OptEnt.Mesg->Type       = PXEBC_DHCP4_MSG_TYPE_REQUEST;

-    Index++;

-    OptList[Index]          = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);

-

-    //

-    // Append max message size.

-    //

-    OptList[Index]->OpCode  = DHCP4_TAG_MAXMSG;

-    OptList[Index]->Length  = (UINT8) sizeof (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE);

-    OptEnt.MaxMesgSize      = (PXEBC_DHCP4_OPTION_MAX_MESG_SIZE *) OptList[Index]->Data;

-    Value                   = NTOHS (PXEBC_DHCP4_MAX_PACKET_SIZE);

-    CopyMem (&OptEnt.MaxMesgSize->Size, &Value, sizeof (UINT16));

-    Index++;

-    OptList[Index]          = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);

-  }

-  //

-  // Parameter request list option.

-  //

-  OptList[Index]->OpCode    = DHCP4_TAG_PARA_LIST;

-  OptList[Index]->Length    = 35;

-  OptEnt.Para               = (PXEBC_DHCP4_OPTION_PARA *) OptList[Index]->Data;

-  OptEnt.Para->ParaList[0]  = DHCP4_TAG_NETMASK;

-  OptEnt.Para->ParaList[1]  = DHCP4_TAG_TIME_OFFSET;

-  OptEnt.Para->ParaList[2]  = DHCP4_TAG_ROUTER;

-  OptEnt.Para->ParaList[3]  = DHCP4_TAG_TIME_SERVER;

-  OptEnt.Para->ParaList[4]  = DHCP4_TAG_NAME_SERVER;

-  OptEnt.Para->ParaList[5]  = DHCP4_TAG_DNS_SERVER;

-  OptEnt.Para->ParaList[6]  = DHCP4_TAG_HOSTNAME;

-  OptEnt.Para->ParaList[7]  = DHCP4_TAG_BOOTFILE_LEN;

-  OptEnt.Para->ParaList[8]  = DHCP4_TAG_DOMAINNAME;

-  OptEnt.Para->ParaList[9]  = DHCP4_TAG_ROOTPATH;

-  OptEnt.Para->ParaList[10] = DHCP4_TAG_EXTEND_PATH;

-  OptEnt.Para->ParaList[11] = DHCP4_TAG_EMTU;

-  OptEnt.Para->ParaList[12] = DHCP4_TAG_TTL;

-  OptEnt.Para->ParaList[13] = DHCP4_TAG_BROADCAST;

-  OptEnt.Para->ParaList[14] = DHCP4_TAG_NIS_DOMAIN;

-  OptEnt.Para->ParaList[15] = DHCP4_TAG_NIS_SERVER;

-  OptEnt.Para->ParaList[16] = DHCP4_TAG_NTP_SERVER;

-  OptEnt.Para->ParaList[17] = DHCP4_TAG_VENDOR;

-  OptEnt.Para->ParaList[18] = DHCP4_TAG_REQUEST_IP;

-  OptEnt.Para->ParaList[19] = DHCP4_TAG_LEASE;

-  OptEnt.Para->ParaList[20] = DHCP4_TAG_SERVER_ID;

-  OptEnt.Para->ParaList[21] = DHCP4_TAG_T1;

-  OptEnt.Para->ParaList[22] = DHCP4_TAG_T2;

-  OptEnt.Para->ParaList[23] = DHCP4_TAG_VENDOR_CLASS_ID;

-  OptEnt.Para->ParaList[24] = DHCP4_TAG_TFTP;

-  OptEnt.Para->ParaList[25] = DHCP4_TAG_BOOTFILE;

-  OptEnt.Para->ParaList[26] = DHCP4_TAG_UUID;

-  OptEnt.Para->ParaList[27] = 0x80;

-  OptEnt.Para->ParaList[28] = 0x81;

-  OptEnt.Para->ParaList[29] = 0x82;

-  OptEnt.Para->ParaList[30] = 0x83;

-  OptEnt.Para->ParaList[31] = 0x84;

-  OptEnt.Para->ParaList[32] = 0x85;

-  OptEnt.Para->ParaList[33] = 0x86;

-  OptEnt.Para->ParaList[34] = 0x87;

-  Index++;

-  OptList[Index]            = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);

-

-  //

-  // Append UUID/Guid-based client identifier option

-  //

-  OptList[Index]->OpCode  = DHCP4_TAG_UUID;

-  OptList[Index]->Length  = (UINT8) sizeof (PXEBC_DHCP4_OPTION_UUID);

-  OptEnt.Uuid             = (PXEBC_DHCP4_OPTION_UUID *) OptList[Index]->Data;

-  OptEnt.Uuid->Type       = 0;

-  Index++;

-  OptList[Index]          = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);

-

-  if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) OptEnt.Uuid->Guid))) {

-    //

-    // GUID not yet set - send all 0xff's to show programable (via SetVariable)

-    // SetMem(DHCPV4_OPTIONS_BUFFER.DhcpPlatformId.Guid, sizeof(EFI_GUID), 0xff);

-    // GUID not yet set - send all 0's to show not programable

-    //

-    DEBUG ((EFI_D_WARN, "PXE: Failed to read system GUID from the smbios table!\n"));

-    ZeroMem (OptEnt.Uuid->Guid, sizeof (EFI_GUID));

-  }

-

-  //

-  // Append client network device interface option

-  //

-  OptList[Index]->OpCode  = DHCP4_TAG_UNDI;

-  OptList[Index]->Length  = (UINT8) sizeof (PXEBC_DHCP4_OPTION_UNDI);

-  OptEnt.Undi             = (PXEBC_DHCP4_OPTION_UNDI *) OptList[Index]->Data;

-  if (Private->Nii != NULL) {

-    OptEnt.Undi->Type       = Private->Nii->Type;

-    OptEnt.Undi->MajorVer   = Private->Nii->MajorVer;

-    OptEnt.Undi->MinorVer   = Private->Nii->MinorVer;

-  } else {

-    OptEnt.Undi->Type       = DEFAULT_UNDI_TYPE;

-    OptEnt.Undi->MajorVer   = DEFAULT_UNDI_MAJOR;

-    OptEnt.Undi->MinorVer   = DEFAULT_UNDI_MINOR;

-  }

-

-  Index++;

-  OptList[Index] = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);

-

-  //

-  // Append client system architecture option

-  //

-  OptList[Index]->OpCode  = DHCP4_TAG_ARCH;

-  OptList[Index]->Length  = (UINT8) sizeof (PXEBC_DHCP4_OPTION_ARCH);

-  OptEnt.Arch             = (PXEBC_DHCP4_OPTION_ARCH *) OptList[Index]->Data;

-  Value                   = HTONS (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE);

-  CopyMem (&OptEnt.Arch->Type, &Value, sizeof (UINT16));

-  Index++;

-  OptList[Index]          = GET_NEXT_DHCP_OPTION (OptList[Index - 1]);

-

-  //

-  // Append client system architecture option

-  //

-  OptList[Index]->OpCode  = DHCP4_TAG_VENDOR_CLASS_ID;

-  OptList[Index]->Length  = (UINT8) sizeof (PXEBC_DHCP4_OPTION_CLID);

-  OptEnt.Clid             = (PXEBC_DHCP4_OPTION_CLID *) OptList[Index]->Data;

-  CopyMem (OptEnt.Clid, DEFAULT_CLASS_ID_DATA, sizeof (PXEBC_DHCP4_OPTION_CLID));

-  CvtNum (EFI_PXE_CLIENT_SYSTEM_ARCHITECTURE, OptEnt.Clid->ArchitectureType, sizeof (OptEnt.Clid->ArchitectureType));

-

-  if (Private->Nii != NULL) {

-    //

-    // If NII protocol exists, update DHCP option data

-    //

-    CopyMem (OptEnt.Clid->InterfaceName, Private->Nii->StringId, sizeof (OptEnt.Clid->InterfaceName));

-    CvtNum (Private->Nii->MajorVer, OptEnt.Clid->UndiMajor, sizeof (OptEnt.Clid->UndiMajor));

-    CvtNum (Private->Nii->MinorVer, OptEnt.Clid->UndiMinor, sizeof (OptEnt.Clid->UndiMinor));

-  }

-

-  Index++;

-

-  return Index;

-}

-

-

-/**

-  Discover the boot of service and initialize the vendor option if exists.

-

-  @param  Private               Pointer to PxeBc private data.

-  @param  Type                  PxeBc option boot item type

-  @param  Layer                 PxeBc option boot item layer

-  @param  UseBis                Use BIS or not

-  @param  DestIp                Ip address for server

-  @param  IpCount               The total count of the server ip address

-  @param  SrvList               Server list

-  @param  IsDiscv               Discover the vendor or not

-  @param  Reply                 The dhcp4 packet of Pxe reply

-

-  @retval EFI_SUCCESS           Operation succeeds.

-  @retval EFI_OUT_OF_RESOURCES  Allocate memory pool failed.

-  @retval EFI_NOT_FOUND         There is no vendor option exists.

-  @retval EFI_TIMEOUT           Send Pxe Discover time out.

-

-**/

-EFI_STATUS

-PxeBcDiscvBootService (

-  IN PXEBC_PRIVATE_DATA                * Private,

-  IN UINT16                            Type,

-  IN UINT16                            *Layer,

-  IN BOOLEAN                           UseBis,

-  IN EFI_IP_ADDRESS                    * DestIp,

-  IN UINT16                            IpCount,

-  IN EFI_PXE_BASE_CODE_SRVLIST         * SrvList,

-  IN BOOLEAN                           IsDiscv,

-  OUT EFI_DHCP4_PACKET                 * Reply OPTIONAL

-  )

-{

-  EFI_PXE_BASE_CODE_UDP_PORT          Sport;

-  EFI_PXE_BASE_CODE_MODE              *Mode;

-  EFI_DHCP4_PROTOCOL                  *Dhcp4;

-  EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN    Token;

-  BOOLEAN                             IsBCast;

-  EFI_STATUS                          Status;

-  UINT16                              RepIndex;

-  UINT16                              SrvIndex;

-  UINT16                              TryIndex;

-  EFI_DHCP4_LISTEN_POINT              ListenPoint;

-  EFI_DHCP4_PACKET                    *Response;

-  EFI_DHCP4_PACKET_OPTION             *OptList[PXEBC_DHCP4_MAX_OPTION_NUM];

-  UINT32                              OptCount;

-  EFI_DHCP4_PACKET_OPTION             *PxeOpt;

-  PXEBC_OPTION_BOOT_ITEM              *PxeBootItem;

-  UINT8                               VendorOptLen;

-  EFI_DHCP4_HEADER                    *DhcpHeader;

-  UINT32                              Xid;

-

-  Mode      = Private->PxeBc.Mode;

-  Dhcp4     = Private->Dhcp4;

-  Status    = EFI_SUCCESS;

-

-  ZeroMem (&Token, sizeof (EFI_DHCP4_TRANSMIT_RECEIVE_TOKEN));

-

-  if (DestIp == NULL) {

-    Sport   = PXEBC_DHCP4_S_PORT;

-    IsBCast = TRUE;

-  } else {

-    Sport   = PXEBC_BS_DISCOVER_PORT;

-    IsBCast = FALSE;

-  }

-

-  if (!UseBis && Layer != NULL) {

-    *Layer &= EFI_PXE_BASE_CODE_BOOT_LAYER_MASK;

-  }

-

-  OptCount = PxeBcBuildDhcpOptions (Private, OptList, FALSE);

-

-  if (IsDiscv) {

-    ASSERT (Layer != NULL);

-    //

-    // Add vendor option of PXE_BOOT_ITEM

-    //

-    VendorOptLen = (UINT8) ((sizeof (EFI_DHCP4_PACKET_OPTION) - 1) * 2 + sizeof (PXEBC_OPTION_BOOT_ITEM) + 1);

-    OptList[OptCount] = AllocatePool (VendorOptLen);

-    if (OptList[OptCount] == NULL) {

-      return EFI_OUT_OF_RESOURCES;

-    }

-

-    OptList[OptCount]->OpCode     = DHCP4_TAG_VENDOR;

-    OptList[OptCount]->Length     = (UINT8) (VendorOptLen - 2);

-    PxeOpt                        = (EFI_DHCP4_PACKET_OPTION *) OptList[OptCount]->Data;

-    PxeOpt->OpCode                = PXEBC_VENDOR_TAG_BOOT_ITEM;

-    PxeOpt->Length                = (UINT8) sizeof (PXEBC_OPTION_BOOT_ITEM);

-    PxeBootItem                   = (PXEBC_OPTION_BOOT_ITEM *) PxeOpt->Data;

-    PxeBootItem->Type             = HTONS (Type);

-    PxeBootItem->Layer            = HTONS (*Layer);

-    PxeOpt->Data[PxeOpt->Length]  = DHCP4_TAG_EOP;

-

-    OptCount++;

-  }

-

-  Status = Dhcp4->Build (Dhcp4, &Private->SeedPacket, 0, NULL, OptCount, OptList, &Token.Packet);

-

-  if (IsDiscv) {

-    FreePool (OptList[OptCount - 1]);

-  }

-

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  DhcpHeader = &Token.Packet->Dhcp4.Header;

-  if (Mode->SendGUID) {

-    if (EFI_ERROR (NetLibGetSystemGuid ((EFI_GUID *) DhcpHeader->ClientHwAddr))) {

-      //

-      // GUID not yet set - send all 0's to show not programable

-      //

-      DEBUG ((EFI_D_WARN, "PXE: Failed to read system GUID from the smbios table!\n"));

-      ZeroMem (DhcpHeader->ClientHwAddr, sizeof (EFI_GUID));

-    }

-

-    DhcpHeader->HwAddrLen = (UINT8) sizeof (EFI_GUID);

-  }

-

-  Xid                                 = NET_RANDOM (NetRandomInitSeed ());

-  Token.Packet->Dhcp4.Header.Xid      = HTONL(Xid);

-  Token.Packet->Dhcp4.Header.Reserved = HTONS((UINT16) ((IsBCast) ? 0x8000 : 0));

-  CopyMem (&Token.Packet->Dhcp4.Header.ClientAddr, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));

-

-  Token.RemotePort = Sport;

-

-  if (IsBCast) {

-    SetMem (&Token.RemoteAddress, sizeof (EFI_IPv4_ADDRESS), 0xff);

-  } else {

-    CopyMem (&Token.RemoteAddress, DestIp, sizeof (EFI_IPv4_ADDRESS));

-  }

-

-  CopyMem (&Token.GatewayAddress, &Private->GatewayIp, sizeof (EFI_IPv4_ADDRESS));

-

-  if (!IsBCast) {

-    Token.ListenPointCount            = 1;

-    Token.ListenPoints                = &ListenPoint;

-    Token.ListenPoints[0].ListenPort  = PXEBC_BS_DISCOVER_PORT;

-    CopyMem (&Token.ListenPoints[0].ListenAddress, &Private->StationIp, sizeof(EFI_IPv4_ADDRESS));

-    CopyMem (&Token.ListenPoints[0].SubnetMask, &Private->SubnetMask, sizeof(EFI_IPv4_ADDRESS));

-  }

-  //

-  // Send Pxe Discover

-  //

-  for (TryIndex = 1; TryIndex <= PXEBC_BOOT_REQUEST_RETRIES; TryIndex++) {

-

-    Token.TimeoutValue                  = (UINT16) (PXEBC_BOOT_REQUEST_TIMEOUT * TryIndex);

-    Token.Packet->Dhcp4.Header.Seconds  = (UINT16) (PXEBC_BOOT_REQUEST_TIMEOUT * (TryIndex - 1));

-

-    Status              = Dhcp4->TransmitReceive (Dhcp4, &Token);

-

-    if (Token.Status != EFI_TIMEOUT) {

-      break;

-    }

-  }

-

-  if (TryIndex > PXEBC_BOOT_REQUEST_RETRIES) {

-    //

-    // No server response our PXE request

-    //

-    Status = EFI_TIMEOUT;

-  }

-

-  if (!EFI_ERROR (Status)) {

-    //

-    // Find Pxe Reply

-    //

-    RepIndex  = 0;

-    SrvIndex  = 0;

-    Response  = Token.ResponseList;

-

-    while (RepIndex < Token.ResponseCount) {

-      if (Response->Length > PXEBC_DHCP4_MAX_PACKET_SIZE) {

-        SrvIndex = 0;

-        RepIndex++;

-        Response = (EFI_DHCP4_PACKET *) ((UINT8 *) Response + Response->Size);

-        continue;

-      }

-

-      while (SrvIndex < IpCount) {

-

-        if (SrvList[SrvIndex].AcceptAnyResponse) {

-          break;

-        }

-

-        if ((SrvList[SrvIndex].Type == Type) && EFI_IP4_EQUAL (&(Response->Dhcp4.Header.ServerAddr), &(Private->ServerIp))) {

-          break;

-        }

-

-        SrvIndex++;

-      }

-

-      if ((IpCount != SrvIndex) || (IpCount == 0)) {

-        break;

-      }

-

-      SrvIndex = 0;

-      RepIndex++;

-      Response = (EFI_DHCP4_PACKET *) ((UINT8 *) Response + Response->Size);

-    }

-

-    if (RepIndex < Token.ResponseCount) {

-

-      if (Reply != NULL) {

-        Status = PxeBcCopyEfiDhcp4Packet (Reply, Response);

-        if (EFI_ERROR(Status)) {

-          goto ON_EXIT;

-        }

-      }

-

-      if (IsDiscv) {

-        CopyMem (&(Mode->PxeDiscover), &(Token.Packet->Dhcp4), Token.Packet->Length);

-        Mode->PxeDiscoverValid = TRUE;

-

-        CopyMem (Mode->PxeReply.Raw, &Response->Dhcp4, Response->Length);

-        Mode->PxeReplyReceived = TRUE;

-      }

-    } else {

-      Status = EFI_NOT_FOUND;

-    }

-  }

-

-ON_EXIT:

-  //

-  // free the responselist

-  //

-  if (Token.ResponseList != NULL) {

-    FreePool (Token.ResponseList);

-  }

-  //

-  // Free the dhcp packet

-  //

-  if (Token.Packet != NULL) {

-    FreePool (Token.Packet);

-  }

-

-  return Status;

-}

-

-

-/**

-  Parse interested dhcp options.

-

-  @param  Buffer     Pointer to the dhcp options packet.

-  @param  Length     The length of the dhcp options.

-  @param  OptTag     The option OpCode.

-

-  @return NULL if the buffer length is 0 and OpCode is not

-          DHCP4_TAG_EOP, or the pointer to the buffer.

-

-**/

-EFI_DHCP4_PACKET_OPTION *

-PxeBcParseExtendOptions (

-  IN UINT8                         *Buffer,

-  IN UINT32                        Length,

-  IN UINT8                         OptTag

-  )

-{

-  EFI_DHCP4_PACKET_OPTION *Option;

-  UINT32                  Offset;

-

-  Option  = (EFI_DHCP4_PACKET_OPTION *) Buffer;

-  Offset  = 0;

-

-  while (Offset < Length && Option->OpCode != DHCP4_TAG_EOP) {

-

-    if (Option->OpCode == OptTag) {

-

-      return Option;

-    }

-

-    if (Option->OpCode == DHCP4_TAG_PAD) {

-      Offset++;

-    } else {

-      Offset += Option->Length + 2;

-    }

-

-    Option = (EFI_DHCP4_PACKET_OPTION *) (Buffer + Offset);

-  }

-

-  return NULL;

-}

-

-

-/**

-  This function is to parse and check vendor options.

-

-  @param  Dhcp4Option           Pointer to dhcp options

-  @param  VendorOption          Pointer to vendor options

-

-  @return TRUE if valid for vendor options, or FALSE.

-

-**/

-BOOLEAN

-PxeBcParseVendorOptions (

-  IN EFI_DHCP4_PACKET_OPTION       *Dhcp4Option,

-  IN PXEBC_VENDOR_OPTION           *VendorOption

-  )

-{

-  UINT32                  *BitMap;

-  UINT8                   VendorOptionLen;

-  EFI_DHCP4_PACKET_OPTION *PxeOption;

-  UINT8                   Offset;

-

-  BitMap          = VendorOption->BitMap;

-  VendorOptionLen = Dhcp4Option->Length;

-  PxeOption       = (EFI_DHCP4_PACKET_OPTION *) &Dhcp4Option->Data[0];

-  Offset          = 0;

-

-  while ((Offset < VendorOptionLen) && (PxeOption->OpCode != DHCP4_TAG_EOP)) {

-    //

-    // Parse every Vendor Option and set its BitMap

-    //

-    switch (PxeOption->OpCode) {

-

-    case PXEBC_VENDOR_TAG_MTFTP_IP:

-

-      CopyMem (&VendorOption->MtftpIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));

-      break;

-

-    case PXEBC_VENDOR_TAG_MTFTP_CPORT:

-

-      CopyMem (&VendorOption->MtftpCPort, PxeOption->Data, sizeof (VendorOption->MtftpCPort));

-      break;

-

-    case PXEBC_VENDOR_TAG_MTFTP_SPORT:

-

-      CopyMem (&VendorOption->MtftpSPort, PxeOption->Data, sizeof (VendorOption->MtftpSPort));

-      break;

-

-    case PXEBC_VENDOR_TAG_MTFTP_TIMEOUT:

-

-      VendorOption->MtftpTimeout = *PxeOption->Data;

-      break;

-

-    case PXEBC_VENDOR_TAG_MTFTP_DELAY:

-

-      VendorOption->MtftpDelay = *PxeOption->Data;

-      break;

-

-    case PXEBC_VENDOR_TAG_DISCOVER_CTRL:

-

-      VendorOption->DiscoverCtrl = *PxeOption->Data;

-      break;

-

-    case PXEBC_VENDOR_TAG_DISCOVER_MCAST:

-

-      CopyMem (&VendorOption->DiscoverMcastIp, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));

-      break;

-

-    case PXEBC_VENDOR_TAG_BOOT_SERVERS:

-

-      VendorOption->BootSvrLen  = PxeOption->Length;

-      VendorOption->BootSvr     = (PXEBC_BOOT_SVR_ENTRY *) PxeOption->Data;

-      break;

-

-    case PXEBC_VENDOR_TAG_BOOT_MENU:

-

-      VendorOption->BootMenuLen = PxeOption->Length;

-      VendorOption->BootMenu    = (PXEBC_BOOT_MENU_ENTRY *) PxeOption->Data;

-      break;

-

-    case PXEBC_VENDOR_TAG_MENU_PROMPT:

-

-      VendorOption->MenuPromptLen = PxeOption->Length;

-      VendorOption->MenuPrompt    = (PXEBC_MENU_PROMPT *) PxeOption->Data;

-      break;

-

-    case PXEBC_VENDOR_TAG_MCAST_ALLOC:

-

-      CopyMem (&VendorOption->McastIpBase, PxeOption->Data, sizeof (EFI_IPv4_ADDRESS));

-      CopyMem (&VendorOption->McastIpBlock, PxeOption->Data + 4, sizeof (VendorOption->McastIpBlock));

-      CopyMem (&VendorOption->McastIpRange, PxeOption->Data + 6, sizeof (VendorOption->McastIpRange));

-      break;

-

-    case PXEBC_VENDOR_TAG_CREDENTIAL_TYPES:

-

-      VendorOption->CredTypeLen = PxeOption->Length;

-      VendorOption->CredType    = (UINT32 *) PxeOption->Data;

-      break;

-

-    case PXEBC_VENDOR_TAG_BOOT_ITEM:

-

-      CopyMem (&VendorOption->BootSrvType, PxeOption->Data, sizeof (VendorOption->BootSrvType));

-      CopyMem (&VendorOption->BootSrvLayer, PxeOption->Data + 2, sizeof (VendorOption->BootSrvLayer));

-      break;

-    }

-

-    SET_VENDOR_OPTION_BIT_MAP (BitMap, PxeOption->OpCode);

-

-    if (PxeOption->OpCode == DHCP4_TAG_PAD) {

-      Offset++;

-    } else {

-      Offset = (UINT8) (Offset + PxeOption->Length + 2);

-    }

-

-    PxeOption = (EFI_DHCP4_PACKET_OPTION *) (Dhcp4Option->Data + Offset);

-  }

-

-  //

-  // FixMe, return falas if invalid of any vendor option

-  //

-

-  return TRUE;

-}

-

-

-/**

-  This function display boot item detail.

-

-  If the length of the boot item string over 70 Char, just display 70 Char.

-

-  @param  Str     Pointer to a string (boot item string).

-  @param  Len     The length of string.

-

-**/

-VOID

-PxeBcDisplayBootItem (

-  IN UINT8                 *Str,

-  IN UINT8                 Len

-  )

-{

-  UINT8 Tmp;

-

-  Len       = (UINT8) MIN (70, Len);

-  Tmp       = Str[Len];

-  Str[Len]  = 0;

-  AsciiPrint ("%a \n", Str);

-  Str[Len] = Tmp;

-}

-

-

-/**

-  Choose the boot prompt.

-

-  @param  Private              Pointer to PxeBc private data.

-

-  @retval EFI_SUCCESS          Select boot prompt done.

-  @retval EFI_TIMEOUT          Select boot prompt time out.

-  @retval EFI_NOT_FOUND        The proxy offer is not Pxe10.

-  @retval EFI_ABORTED          User cancel the operation.

-  @retval EFI_NOT_READY        Read the input key from the keybroad has not finish.

-

-**/

-EFI_STATUS

-PxeBcSelectBootPrompt (

-  IN PXEBC_PRIVATE_DATA              *Private

-  )

-{

-  PXEBC_CACHED_DHCP4_PACKET  *Packet;

-  PXEBC_VENDOR_OPTION       *VendorOpt;

-  EFI_EVENT                  TimeoutEvent;

-  EFI_EVENT                  DescendEvent;

-  EFI_INPUT_KEY              InputKey;

-  EFI_STATUS                 Status;

-  UINT8                      Timeout;

-  UINT8                      *Prompt;

-  UINT8                      PromptLen;

-  INT32                      SecCol;

-  INT32                      SecRow;

-

-  TimeoutEvent  = NULL;

-  DescendEvent  = NULL;

-

-  if (Private->PxeBc.Mode->ProxyOfferReceived) {

-

-    Packet  = &Private->ProxyOffer;

-  } else {

-

-    Packet  = &Private->Dhcp4Ack;

-  }

-

-  if (Packet->OfferType != DHCP4_PACKET_TYPE_PXE10) {

-    return EFI_NOT_FOUND;

-  }

-

-  VendorOpt = &Packet->PxeVendorOption;

-  //

-  // According to the PXE specification 2.1, Table 2-1 PXE DHCP Options  (Full

-  // List), we must not consider a boot prompt or boot menu if all of the

-  // following hold:

-  // - the PXE_DISCOVERY_CONTROL PXE tag is present inside the Vendor Options

-  //   (=43) DHCP tag, and

-  // - the PXE_DISCOVERY_CONTROL PXE tag has bit 3 set, and

-  // - a boot file name has been presented with DHCP option 67.

-  //

-  if (IS_DISABLE_PROMPT_MENU (VendorOpt->DiscoverCtrl) &&

-      Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL) {

-    return EFI_ABORTED;

-  }

-

-  if (!IS_VALID_BOOT_PROMPT (VendorOpt->BitMap)) {

-    return EFI_SUCCESS;

-  }

-

-  Timeout   = VendorOpt->MenuPrompt->Timeout;

-  Prompt    = VendorOpt->MenuPrompt->Prompt;

-  PromptLen = (UINT8) (VendorOpt->MenuPromptLen - 1);

-

-  if (Timeout == 0) {

-    return EFI_SUCCESS;

-  }

-

-  if (Timeout == 255) {

-    return EFI_TIMEOUT;

-  }

-

-  Status = gBS->CreateEvent (

-                  EVT_TIMER,

-                  TPL_CALLBACK,

-                  NULL,

-                  NULL,

-                  &TimeoutEvent

-                  );

-

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  Status = gBS->SetTimer (

-                  TimeoutEvent,

-                  TimerRelative,

-                  MultU64x32 (Timeout, TICKS_PER_SECOND)

-                  );

-

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  Status = gBS->CreateEvent (

-                  EVT_TIMER,

-                  TPL_CALLBACK,

-                  NULL,

-                  NULL,

-                  &DescendEvent

-                  );

-

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  Status = gBS->SetTimer (

-                  DescendEvent,

-                  TimerPeriodic,

-                  TICKS_PER_SECOND

-                  );

-

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  SecCol = gST->ConOut->Mode->CursorColumn;

-  SecRow = gST->ConOut->Mode->CursorRow;

-

-  PxeBcDisplayBootItem (Prompt, PromptLen);

-

-  gST->ConOut->SetCursorPosition (gST->ConOut, SecCol + PromptLen, SecRow);

-  AsciiPrint ("(%d) ", Timeout--);

-

-  while (EFI_ERROR (gBS->CheckEvent (TimeoutEvent))) {

-

-    if (!EFI_ERROR (gBS->CheckEvent (DescendEvent))) {

-      gST->ConOut->SetCursorPosition (gST->ConOut, SecCol + PromptLen, SecRow);

-      AsciiPrint ("(%d) ", Timeout--);

-    }

-

-    if (gST->ConIn->ReadKeyStroke (gST->ConIn, &InputKey) == EFI_NOT_READY) {

-

-      gBS->Stall (10 * TICKS_PER_MS);

-      continue;

-    }

-

-    if (InputKey.ScanCode == 0) {

-

-      switch (InputKey.UnicodeChar) {

-      case CTRL ('c'):

-        Status = EFI_ABORTED;

-        break;

-

-      case CTRL ('m'):

-      case 'm':

-      case 'M':

-        Status = EFI_TIMEOUT;

-        break;

-

-      default:

-        continue;

-      }

-    } else {

-

-      switch (InputKey.ScanCode) {

-      case SCAN_F8:

-        Status = EFI_TIMEOUT;

-        break;

-

-      case SCAN_ESC:

-        Status = EFI_ABORTED;

-        break;

-

-      default:

-        continue;

-      }

-    }

-

-    break;

-  }

-

-  gST->ConOut->SetCursorPosition (gST->ConOut, 0 , SecRow + 1);

-

-ON_EXIT:

-

-  if (DescendEvent != NULL) {

-    gBS->CloseEvent (DescendEvent);

-  }

-

-  if (TimeoutEvent != NULL) {

-    gBS->CloseEvent (TimeoutEvent);

-  }

-

-  return Status;

-}

-

-

-/**

-  Select the boot menu.

-

-  @param  Private         Pointer to PxeBc private data.

-  @param  Type            The type of the menu.

-  @param  UseDefaultItem  Use default item or not.

-

-  @retval EFI_ABORTED     User cancel operation.

-  @retval EFI_SUCCESS     Select the boot menu success.

-  @retval EFI_NOT_READY   Read the input key from the keybroad has not finish.

-

-**/

-EFI_STATUS

-PxeBcSelectBootMenu (

-  IN  PXEBC_PRIVATE_DATA              *Private,

-  OUT UINT16                          *Type,

-  IN  BOOLEAN                         UseDefaultItem

-  )

-{

-  PXEBC_CACHED_DHCP4_PACKET  *Packet;

-  PXEBC_VENDOR_OPTION        *VendorOpt;

-  EFI_INPUT_KEY              InputKey;

-  UINT8                      MenuSize;

-  UINT8                      MenuNum;

-  INT32                      TopRow;

-  UINT16                     Select;

-  UINT16                     LastSelect;

-  UINT8                      Index;

-  BOOLEAN                    Finish;

-  CHAR8                      Blank[70];

-  PXEBC_BOOT_MENU_ENTRY      *MenuItem;

-  PXEBC_BOOT_MENU_ENTRY      *MenuArray[PXEBC_MAX_MENU_NUM];

-

-  Finish  = FALSE;

-  Select  = 0;

-  Index   = 0;

-  *Type   = 0;

-

-  if (Private->PxeBc.Mode->ProxyOfferReceived) {

-

-    Packet  = &Private->ProxyOffer;

-  } else {

-

-    Packet  = &Private->Dhcp4Ack;

-  }

-

-  ASSERT (Packet->OfferType == DHCP4_PACKET_TYPE_PXE10);

-

-  VendorOpt = &Packet->PxeVendorOption;

-

-  if (!IS_VALID_BOOT_MENU (VendorOpt->BitMap)) {

-    return EFI_SUCCESS;

-  }

-

-  SetMem (Blank, sizeof(Blank), ' ');

-

-  MenuSize  = VendorOpt->BootMenuLen;

-  MenuItem  = VendorOpt->BootMenu;

-

-  if (MenuSize == 0) {

-    return EFI_NOT_READY;

-  }

-

-  while (MenuSize > 0) {

-    MenuArray[Index++]  = MenuItem;

-    MenuSize          = (UINT8) (MenuSize - (MenuItem->DescLen + 3));

-    MenuItem          = (PXEBC_BOOT_MENU_ENTRY *) ((UINT8 *) MenuItem + MenuItem->DescLen + 3);

-    if (Index >= PXEBC_MAX_MENU_NUM) {

-      break;

-    }

-  }

-

-  if (UseDefaultItem) {

-    *Type = MenuArray[0]->Type;

-    *Type = NTOHS (*Type);

-    return EFI_SUCCESS;

-  }

-

-  MenuNum = Index;

-

-  for (Index = 0; Index < MenuNum; Index++) {

-    PxeBcDisplayBootItem (MenuArray[Index]->DescStr, MenuArray[Index]->DescLen);

-  }

-

-  TopRow  = gST->ConOut->Mode->CursorRow - MenuNum;

-

-  do {

-    ASSERT (Select < PXEBC_MAX_MENU_NUM);

-    //

-    // highlight selected row

-    //

-    gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_BLACK, EFI_LIGHTGRAY));

-    gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + Select);

-    Blank[MenuArray[Select]->DescLen] = 0;

-    AsciiPrint ("%a\r", Blank);

-    PxeBcDisplayBootItem (MenuArray[Select]->DescStr, MenuArray[Select]->DescLen);

-    gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + MenuNum);

-    LastSelect = Select;

-

-    while (gST->ConIn->ReadKeyStroke (gST->ConIn, &InputKey) == EFI_NOT_READY) {

-      gBS->Stall (10 * TICKS_PER_MS);

-    }

-

-    if (InputKey.ScanCode == 0) {

-      switch (InputKey.UnicodeChar) {

-      case CTRL ('c'):

-        InputKey.ScanCode = SCAN_ESC;

-        break;

-

-      case CTRL ('j'):  /* linefeed */

-      case CTRL ('m'):  /* return */

-        Finish = TRUE;

-        break;

-

-      case CTRL ('i'):  /* tab */

-      case ' ':

-      case 'd':

-      case 'D':

-        InputKey.ScanCode = SCAN_DOWN;

-        break;

-

-      case CTRL ('h'):  /* backspace */

-      case 'u':

-      case 'U':

-        InputKey.ScanCode = SCAN_UP;

-        break;

-

-      default:

-        InputKey.ScanCode = 0;

-      }

-    }

-

-    switch (InputKey.ScanCode) {

-    case SCAN_LEFT:

-    case SCAN_UP:

-      if (Select > 0) {

-        --Select;

-      }

-

-      break;

-

-    case SCAN_DOWN:

-    case SCAN_RIGHT:

-      if (++Select == MenuNum) {

-        --Select;

-      }

-

-      break;

-

-    case SCAN_PAGE_UP:

-    case SCAN_HOME:

-      Select = 0;

-      break;

-

-    case SCAN_PAGE_DOWN:

-    case SCAN_END:

-      Select = (UINT16) (MenuNum - 1);

-      break;

-

-    case SCAN_ESC:

-      return EFI_ABORTED;

-    }

-

-    /* unhighlight last selected row */

-    gST->ConOut->SetAttribute (gST->ConOut, EFI_TEXT_ATTR (EFI_LIGHTGRAY, EFI_BLACK));

-    gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + LastSelect);

-    Blank[MenuArray[LastSelect]->DescLen] = 0;

-    AsciiPrint ("%a\r", Blank);

-    PxeBcDisplayBootItem (MenuArray[LastSelect]->DescStr, MenuArray[LastSelect]->DescLen);

-    gST->ConOut->SetCursorPosition (gST->ConOut, 0, TopRow + MenuNum);

-  } while (!Finish);

-

-   ASSERT (Select < PXEBC_MAX_MENU_NUM);

-

-  //

-  // Swap the byte order

-  //

-  CopyMem (Type, &MenuArray[Select]->Type, sizeof (UINT16));

-  *Type = NTOHS (*Type);

-

-  return EFI_SUCCESS;

-}

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.h b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.h
deleted file mode 100644
index d8336c5e82..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDhcp.h
+++ /dev/null
@@ -1,502 +0,0 @@
-/** @file

-  Dhcp and Discover routines for PxeBc.

-

-Copyright (c) 2013, Red Hat, Inc.

-Copyright (c) 2007 - 2018, 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

-which 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.

-

-**/

-

-#ifndef __EFI_PXEBC_DHCP_H__

-#define __EFI_PXEBC_DHCP_H__

-

-#define PXEBC_DHCP4_MAX_OPTION_NUM         16

-#define PXEBC_DHCP4_MAX_OPTION_SIZE        312

-#define PXEBC_DHCP4_MAX_PACKET_SIZE        (sizeof (EFI_PXE_BASE_CODE_PACKET))

-

-#define PXEBC_DHCP4_S_PORT                 67

-#define PXEBC_DHCP4_C_PORT                 68

-#define PXEBC_BS_DOWNLOAD_PORT             69

-#define PXEBC_BS_DISCOVER_PORT             4011

-

-#define PXEBC_DHCP4_OPCODE_REQUEST         1

-#define PXEBC_DHCP4_OPCODE_REPLY           2

-#define PXEBC_DHCP4_MSG_TYPE_REQUEST       3

-#define PXEBC_DHCP4_MAGIC                  0x63538263 // network byte order

-

-//

-// Sub-Options in Dhcp Vendor Option

-//

-#define PXEBC_VENDOR_TAG_MTFTP_IP          1

-#define PXEBC_VENDOR_TAG_MTFTP_CPORT       2

-#define PXEBC_VENDOR_TAG_MTFTP_SPORT       3

-#define PXEBC_VENDOR_TAG_MTFTP_TIMEOUT     4

-#define PXEBC_VENDOR_TAG_MTFTP_DELAY       5

-#define PXEBC_VENDOR_TAG_DISCOVER_CTRL     6

-#define PXEBC_VENDOR_TAG_DISCOVER_MCAST    7

-#define PXEBC_VENDOR_TAG_BOOT_SERVERS      8

-#define PXEBC_VENDOR_TAG_BOOT_MENU         9

-#define PXEBC_VENDOR_TAG_MENU_PROMPT       10

-#define PXEBC_VENDOR_TAG_MCAST_ALLOC       11

-#define PXEBC_VENDOR_TAG_CREDENTIAL_TYPES  12

-#define PXEBC_VENDOR_TAG_BOOT_ITEM         71

-

-#define PXEBC_DHCP4_DISCOVER_INIT_TIMEOUT  4

-#define PXEBC_DHCP4_DISCOVER_RETRIES       4

-

-#define PXEBC_MAX_MENU_NUM                 24

-#define PXEBC_MAX_OFFER_NUM                16

-

-#define PXEBC_BOOT_REQUEST_TIMEOUT         1

-#define PXEBC_BOOT_REQUEST_RETRIES         4

-

-#define PXEBC_DHCP4_OVERLOAD_FILE          1

-#define PXEBC_DHCP4_OVERLOAD_SERVER_NAME   2

-

-//

-// The array index of the DHCP4 option tag interested

-//

-#define PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN 0

-#define PXEBC_DHCP4_TAG_INDEX_VENDOR       1

-#define PXEBC_DHCP4_TAG_INDEX_OVERLOAD     2

-#define PXEBC_DHCP4_TAG_INDEX_MSG_TYPE     3

-#define PXEBC_DHCP4_TAG_INDEX_SERVER_ID    4

-#define PXEBC_DHCP4_TAG_INDEX_CLASS_ID     5

-#define PXEBC_DHCP4_TAG_INDEX_BOOTFILE     6

-#define PXEBC_DHCP4_TAG_INDEX_MAX          7

-

-//

-// The type of DHCP OFFER, arranged by priority, PXE10 has the highest priority.

-//

-#define DHCP4_PACKET_TYPE_PXE10            0

-#define DHCP4_PACKET_TYPE_WFM11A           1

-#define DHCP4_PACKET_TYPE_BINL             2

-#define DHCP4_PACKET_TYPE_DHCP_ONLY        3

-#define DHCP4_PACKET_TYPE_BOOTP            4

-#define DHCP4_PACKET_TYPE_MAX              5

-

-#define BIT(x)  (1 << x)

-#define CTRL(x) (0x1F & (x))

-

-//

-// WfM11a options

-//

-#define MTFTP_VENDOR_OPTION_BIT_MAP (BIT (PXEBC_VENDOR_TAG_MTFTP_IP) | \

-                                     BIT (PXEBC_VENDOR_TAG_MTFTP_CPORT) | \

-                                     BIT (PXEBC_VENDOR_TAG_MTFTP_SPORT) | \

-                                     BIT (PXEBC_VENDOR_TAG_MTFTP_TIMEOUT) | \

-                                     BIT (PXEBC_VENDOR_TAG_MTFTP_DELAY))

-//

-// Discoverty options

-//

-#define DISCOVER_VENDOR_OPTION_BIT_MAP  (BIT (PXEBC_VENDOR_TAG_DISCOVER_CTRL) | \

-                                         BIT (PXEBC_VENDOR_TAG_DISCOVER_MCAST) | \

-                                         BIT (PXEBC_VENDOR_TAG_BOOT_SERVERS) | \

-                                         BIT (PXEBC_VENDOR_TAG_BOOT_MENU) | \

-                                         BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))

-

-#define IS_VALID_BOOT_PROMPT(x) \

-  ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_MENU_PROMPT)) == BIT (PXEBC_VENDOR_TAG_MENU_PROMPT))

-

-#define IS_VALID_BOOT_MENU(x) \

-  ((((x)[0]) & BIT (PXEBC_VENDOR_TAG_BOOT_MENU)) == BIT (PXEBC_VENDOR_TAG_BOOT_MENU))

-

-#define IS_VALID_MTFTP_VENDOR_OPTION(x) \

-    (((UINT32) ((x)[0]) & MTFTP_VENDOR_OPTION_BIT_MAP) == MTFTP_VENDOR_OPTION_BIT_MAP)

-

-#define IS_VALID_DISCOVER_VENDOR_OPTION(x)  (((UINT32) ((x)[0]) & DISCOVER_VENDOR_OPTION_BIT_MAP) != 0)

-

-#define IS_VALID_CREDENTIAL_VENDOR_OPTION(x) \

-    (((UINT32) ((x)[0]) & BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES)) == BIT (PXEBC_VENDOR_TAG_CREDENTIAL_TYPES))

-

-#define IS_VALID_BOOTITEM_VENDOR_OPTION(x) \

-    (((UINT32) ((x)[PXEBC_VENDOR_TAG_BOOT_ITEM / 32]) & BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32)) \

-      == BIT (PXEBC_VENDOR_TAG_BOOT_ITEM % 32))

-

-#define IS_DISABLE_BCAST_DISCOVER(x)    (((x) & BIT (0)) == BIT (0))

-#define IS_DISABLE_MCAST_DISCOVER(x)    (((x) & BIT (1)) == BIT (1))

-#define IS_ENABLE_USE_SERVER_LIST(x)    (((x) & BIT (2)) == BIT (2))

-#define IS_DISABLE_PROMPT_MENU(x)       (((x) & BIT (3)) == BIT (3))

-

-#define SET_VENDOR_OPTION_BIT_MAP(x, y) (((x)[(y) / 32]) = (UINT32) ((x)[(y) / 32]) | BIT ((y) % 32))

-

-#pragma pack(1)

-typedef struct {

-  UINT8 ParaList[135];

-} PXEBC_DHCP4_OPTION_PARA;

-

-typedef struct {

-  UINT16  Size;

-} PXEBC_DHCP4_OPTION_MAX_MESG_SIZE;

-

-typedef struct {

-  UINT8 Type;

-  UINT8 MajorVer;

-  UINT8 MinorVer;

-} PXEBC_DHCP4_OPTION_UNDI;

-

-typedef struct {

-  UINT8 Type;

-} PXEBC_DHCP4_OPTION_MESG;

-

-typedef struct {

-  UINT16  Type;

-} PXEBC_DHCP4_OPTION_ARCH;

-

-#define DEFAULT_CLASS_ID_DATA "PXEClient:Arch:xxxxx:UNDI:003000"

-#define DEFAULT_UNDI_TYPE     1

-#define DEFAULT_UNDI_MAJOR    3

-#define DEFAULT_UNDI_MINOR    0

-

-typedef struct {

-  UINT8 ClassIdentifier[10];

-  UINT8 ArchitecturePrefix[5];

-  UINT8 ArchitectureType[5];

-  UINT8 Lit3[1];

-  UINT8 InterfaceName[4];

-  UINT8 Lit4[1];

-  UINT8 UndiMajor[3];

-  UINT8 UndiMinor[3];

-} PXEBC_DHCP4_OPTION_CLID;

-

-typedef struct {

-  UINT8 Type;

-  UINT8 Guid[16];

-} PXEBC_DHCP4_OPTION_UUID;

-

-typedef struct {

-  UINT16  Type;

-  UINT16  Layer;

-} PXEBC_OPTION_BOOT_ITEM;

-

-#pragma pack()

-

-typedef union {

-  PXEBC_DHCP4_OPTION_PARA           *Para;

-  PXEBC_DHCP4_OPTION_UNDI           *Undi;

-  PXEBC_DHCP4_OPTION_ARCH           *Arch;

-  PXEBC_DHCP4_OPTION_CLID           *Clid;

-  PXEBC_DHCP4_OPTION_UUID           *Uuid;

-  PXEBC_DHCP4_OPTION_MESG           *Mesg;

-  PXEBC_DHCP4_OPTION_MAX_MESG_SIZE  *MaxMesgSize;

-} PXEBC_DHCP4_OPTION_ENTRY;

-

-typedef struct {

-  UINT16            Type;

-  UINT8             IpCnt;

-  EFI_IPv4_ADDRESS  IpAddr[1];

-} PXEBC_BOOT_SVR_ENTRY;

-

-typedef struct {

-  UINT16  Type;

-  UINT8   DescLen;

-  UINT8   DescStr[1];

-} PXEBC_BOOT_MENU_ENTRY;

-

-typedef struct {

-  UINT8 Timeout;

-  UINT8 Prompt[1];

-} PXEBC_MENU_PROMPT;

-

-typedef struct {

-  UINT32                BitMap[8];

-  EFI_IPv4_ADDRESS      MtftpIp;

-  UINT16                MtftpCPort;

-  UINT16                MtftpSPort;

-  UINT8                 MtftpTimeout;

-  UINT8                 MtftpDelay;

-  UINT8                 DiscoverCtrl;

-  EFI_IPv4_ADDRESS      DiscoverMcastIp;

-  EFI_IPv4_ADDRESS      McastIpBase;

-  UINT16                McastIpBlock;

-  UINT16                McastIpRange;

-  UINT16                BootSrvType;

-  UINT16                BootSrvLayer;

-  PXEBC_BOOT_SVR_ENTRY  *BootSvr;

-  UINT8                 BootSvrLen;

-  PXEBC_BOOT_MENU_ENTRY *BootMenu;

-  UINT8                 BootMenuLen;

-  PXEBC_MENU_PROMPT     *MenuPrompt;

-  UINT8                 MenuPromptLen;

-  UINT32                *CredType;

-  UINT8                 CredTypeLen;

-} PXEBC_VENDOR_OPTION;

-

-#define PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE  (OFFSET_OF (EFI_DHCP4_PACKET, Dhcp4) + PXEBC_DHCP4_MAX_PACKET_SIZE)

-

-typedef union {

-  EFI_DHCP4_PACKET  Offer;

-  EFI_DHCP4_PACKET  Ack;

-  UINT8             Buffer[PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE];

-} PXEBC_DHCP4_PACKET;

-

-typedef struct {

-  PXEBC_DHCP4_PACKET      Packet;

-  BOOLEAN                 IsPxeOffer;

-  UINT8                   OfferType;

-  EFI_DHCP4_PACKET_OPTION *Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_MAX];

-  PXEBC_VENDOR_OPTION    PxeVendorOption;

-} PXEBC_CACHED_DHCP4_PACKET;

-

-#define GET_NEXT_DHCP_OPTION(Opt) \

-  (EFI_DHCP4_PACKET_OPTION *) ((UINT8 *) (Opt) + sizeof (EFI_DHCP4_PACKET_OPTION) + (Opt)->Length - 1)

-

-#define GET_OPTION_BUFFER_LEN(Pkt)  ((Pkt)->Length - sizeof (EFI_DHCP4_HEADER) - 4)

-#define IS_PROXY_DHCP_OFFER(Offer)  EFI_IP4_EQUAL (&((Offer)->Dhcp4.Header.YourAddr), &mZeroIp4Addr)

-

-#define GET_NEXT_BOOT_SVR_ENTRY(Ent) \

-  (PXEBC_BOOT_SVR_ENTRY *) ((UINT8 *) Ent + sizeof (*(Ent)) + ((Ent)->IpCnt - 1) * sizeof (EFI_IPv4_ADDRESS))

-

-

-/**

-  This function initialize the DHCP4 message instance.

-

-  This function will pad each item of dhcp4 message packet.

-

-  @param  Seed    Pointer to the message instance of the DHCP4 packet.

-  @param  Udp4    Pointer to the EFI_UDP4_PROTOCOL instance.

-

-**/

-VOID

-PxeBcInitSeedPacket (

-  IN EFI_DHCP4_PACKET  *Seed,

-  IN EFI_UDP4_PROTOCOL *Udp4

-  );

-

-

-/**

-  Parse the cached dhcp packet.

-

-  @param  CachedPacket  Pointer to cached dhcp packet.

-

-  @retval TRUE          Succeed to parse and validation.

-  @retval FALSE         Fail to parse or validation.

-

-**/

-BOOLEAN

-PxeBcParseCachedDhcpPacket (

-  IN PXEBC_CACHED_DHCP4_PACKET  *CachedPacket

-  );

-

-/**

-  This function is to check the selected proxy offer (include BINL dhcp offer and

-  DHCP_ONLY offer ) and set the flag and copy the DHCP packets to the Pxe base code

-  mode structure.

-

-  @param  Private          Pointer to PxeBc private data.

-

-  @retval EFI_SUCCESS                Operational successful.

-  @retval EFI_NO_RESPONSE            Offer dhcp service failed.

-  @retval EFI_BUFFER_TOO_SMALL       Failed to copy the packet to Pxe base code mode.

-

-**/

-EFI_STATUS

-PxeBcCheckSelectedOffer (

-  IN PXEBC_PRIVATE_DATA  *Private

-  );

-

-

-/**

-  Callback routine.

-

-  EFI_DHCP4_CALLBACK is provided by the consumer of the EFI DHCPv4 Protocol driver

-  to intercept events that occurred in the configuration process. This structure

-  provides advanced control of each state transition of the DHCP process. The

-  returned status code determines the behavior of the EFI DHCPv4 Protocol driver.

-  There are three possible returned values, which are described in the following

-  table.

-

-  @param  This                  Pointer to the EFI DHCPv4 Protocol instance that is used to

-                                configure this callback function.

-  @param  Context               Pointer to the context that is initialized by

-                                EFI_DHCP4_PROTOCOL.Configure().

-  @param  CurrentState          The current operational state of the EFI DHCPv4 Protocol

-                                driver.

-  @param  Dhcp4Event            The event that occurs in the current state, which usually means a

-                                state transition.

-  @param  Packet                The DHCP packet that is going to be sent or already received.

-  @param  NewPacket             The packet that is used to replace the above Packet.

-

-  @retval EFI_SUCCESS           Tells the EFI DHCPv4 Protocol driver to continue the DHCP process.

-  @retval EFI_NOT_READY         Only used in the Dhcp4Selecting state. The EFI DHCPv4 Protocol

-                                driver will continue to wait for more DHCPOFFER packets until the retry

-                                timeout expires.

-  @retval EFI_ABORTED           Tells the EFI DHCPv4 Protocol driver to abort the current process and

-                                return to the Dhcp4Init or Dhcp4InitReboot state.

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDhcpCallBack (

-  IN EFI_DHCP4_PROTOCOL                * This,

-  IN VOID                              *Context,

-  IN EFI_DHCP4_STATE                   CurrentState,

-  IN EFI_DHCP4_EVENT                   Dhcp4Event,

-  IN EFI_DHCP4_PACKET                  * Packet OPTIONAL,

-  OUT EFI_DHCP4_PACKET                 **NewPacket OPTIONAL

-  );

-

-/**

-  Switch the Ip4 policy to static.

-

-  @param[in]  Private             The pointer to PXEBC_PRIVATE_DATA.

-

-  @retval     EFI_SUCCESS         The policy is already configured to static.

-  @retval     Others              Other error as indicated..

-

-**/

-EFI_STATUS

-PxeBcSetIp4Policy (

-  IN PXEBC_PRIVATE_DATA            *Private

-  );

-

-/**

-  Discover the boot of service and initialize the vendor option if exists.

-

-  @param  Private               Pointer to PxeBc private data.

-  @param  Type                  PxeBc option boot item type

-  @param  Layer                 PxeBc option boot item layer

-  @param  UseBis                Use BIS or not

-  @param  DestIp                Ip address for server

-  @param  IpCount               The total count of the server ip address

-  @param  SrvList               Server list

-  @param  IsDiscv               Discover the vendor or not

-  @param  Reply                 The dhcp4 packet of Pxe reply

-

-  @retval EFI_SUCCESS           Operation succeeds.

-  @retval EFI_OUT_OF_RESOURCES  Allocate memory pool failed.

-  @retval EFI_NOT_FOUND         There is no vendor option exists.

-  @retval EFI_TIMEOUT           Send Pxe Discover time out.

-

-**/

-EFI_STATUS

-PxeBcDiscvBootService (

-  IN PXEBC_PRIVATE_DATA                * Private,

-  IN UINT16                            Type,

-  IN UINT16                            *Layer,

-  IN BOOLEAN                           UseBis,

-  IN EFI_IP_ADDRESS                    * DestIp,

-  IN UINT16                            IpCount,

-  IN EFI_PXE_BASE_CODE_SRVLIST         * SrvList,

-  IN BOOLEAN                           IsDiscv,

-  OUT EFI_DHCP4_PACKET                 * Reply OPTIONAL

-  );

-

-

-/**

-  Initialize the DHCP options and build the option list.

-

-  @param  Private          Pointer to PxeBc private data.

-  @param  OptList          Pointer to a DHCP option list.

-

-  @param  IsDhcpDiscover   Discover dhcp option or not.

-

-  @return The index item number of the option list.

-

-**/

-UINT32

-PxeBcBuildDhcpOptions (

-  IN PXEBC_PRIVATE_DATA            *Private,

-  IN EFI_DHCP4_PACKET_OPTION       **OptList,

-  IN BOOLEAN                       IsDhcpDiscover

-  );

-

-

-/**

-  Create the boot options.

-

-  @param  OptList    Pointer to the list of the options

-  @param  Type       the type of option

-  @param  Layer      the layer of the boot options

-  @param  OptLen     length of opotion

-

-**/

-VOID

-PxeBcCreateBootOptions (

-  IN  EFI_DHCP4_PACKET_OPTION          *OptList,

-  IN  UINT16                           Type,

-  IN  UINT16                           *Layer,

-  OUT UINT32                           *OptLen

-  );

-

-

-/**

-  Parse interested dhcp options.

-

-  @param  Buffer     Pointer to the dhcp options packet.

-  @param  Length     The length of the dhcp options.

-  @param  OptTag     The option OpCode.

-

-  @return NULL if the buffer length is 0 and OpCode is not

-          DHCP4_TAG_EOP, or the pointer to the buffer.

-

-**/

-EFI_DHCP4_PACKET_OPTION *

-PxeBcParseExtendOptions (

-  IN UINT8                         *Buffer,

-  IN UINT32                        Length,

-  IN UINT8                         OptTag

-  );

-

-

-/**

-  This function is to parse and check vendor options.

-

-  @param  Dhcp4Option           Pointer to dhcp options

-  @param  VendorOption          Pointer to vendor options

-

-  @return TRUE if valid for vendor options, or FALSE.

-

-**/

-BOOLEAN

-PxeBcParseVendorOptions (

-  IN EFI_DHCP4_PACKET_OPTION       *Dhcp4Option,

-  IN PXEBC_VENDOR_OPTION           *VendorOption

-  );

-

-

-/**

-  Choose the boot prompt.

-

-  @param  Private              Pointer to PxeBc private data.

-

-  @retval EFI_SUCCESS          Select boot prompt done.

-  @retval EFI_TIMEOUT          Select boot prompt time out.

-  @retval EFI_NOT_FOUND        The proxy offer is not Pxe10.

-  @retval EFI_ABORTED          User cancel the operation.

-  @retval EFI_NOT_READY        Read the input key from the keybroad has not finish.

-

-**/

-EFI_STATUS

-PxeBcSelectBootPrompt (

-  IN PXEBC_PRIVATE_DATA              *Private

-  );

-

-

-/**

-  Select the boot menu.

-

-  @param  Private         Pointer to PxeBc private data.

-  @param  Type            The type of the menu.

-  @param  UseDefaultItem  Use default item or not.

-

-  @retval EFI_ABORTED     User cancel operation.

-  @retval EFI_SUCCESS     Select the boot menu success.

-  @retval EFI_NOT_READY   Read the input key from the keybroad has not finish.

-

-**/

-EFI_STATUS

-PxeBcSelectBootMenu (

-  IN  PXEBC_PRIVATE_DATA              *Private,

-  OUT UINT16                          *Type,

-  IN  BOOLEAN                         UseDefaultItem

-  );

-

-#endif

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDriver.c b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDriver.c
deleted file mode 100644
index 76c140d8e3..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDriver.c
+++ /dev/null
@@ -1,665 +0,0 @@
-/** @file

-  The driver binding for UEFI PXEBC protocol.

-

-Copyright (c) 2007 - 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

-which 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 "PxeBcImpl.h"

-

-EFI_DRIVER_BINDING_PROTOCOL gPxeBcDriverBinding = {

-  PxeBcDriverBindingSupported,

-  PxeBcDriverBindingStart,

-  PxeBcDriverBindingStop,

-  0xa,

-  NULL,

-  NULL

-};

-

-/**

-  This is the declaration of an EFI image entry point. This entry point is

-  the same for UEFI Applications, UEFI OS Loaders, and UEFI Drivers including

-  both device drivers and bus drivers.

-

-  @param  ImageHandle           The firmware allocated handle for the UEFI image.

-  @param  SystemTable           A pointer to the EFI System Table.

-

-  @retval EFI_SUCCESS           The operation completed successfully.

-  @retval EFI_OUT_OF_RESOURCES  The request could not be completed due to a lack of resources.

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDriverEntryPoint (

-  IN EFI_HANDLE             ImageHandle,

-  IN EFI_SYSTEM_TABLE       *SystemTable

-  )

-{

-  return EfiLibInstallDriverBindingComponentName2 (

-          ImageHandle,

-          SystemTable,

-          &gPxeBcDriverBinding,

-          ImageHandle,

-          &gPxeBcComponentName,

-          &gPxeBcComponentName2

-          );

-}

-

-

-/**

-  Test to see if this driver supports ControllerHandle. This service

-  is called by the EFI boot service ConnectController(). In

-  order to make drivers as small as possible, there are a few calling

-  restrictions for this service. ConnectController() must

-  follow these calling restrictions. If any other agent wishes to call

-  Supported() it must also follow these calling restrictions.

-  PxeBc requires DHCP4 and MTFTP4 protocols.

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test

-  @param  RemainingDevicePath Optional parameter use to pick a specific child

-                              device to start.

-

-  @retval EFI_SUCCESS         This driver supports this device

-  @retval EFI_ALREADY_STARTED This driver is already running on this device

-  @retval other               This driver does not support this device

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDriverBindingSupported (

-  IN EFI_DRIVER_BINDING_PROTOCOL  * This,

-  IN EFI_HANDLE                   ControllerHandle,

-  IN EFI_DEVICE_PATH_PROTOCOL     * RemainingDevicePath OPTIONAL

-  )

-{

-  EFI_PXE_BASE_CODE_PROTOCOL  *PxeBc;

-  EFI_STATUS                  Status;

-

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiPxeBaseCodeProtocolGuid,

-                  (VOID **) &PxeBc,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

-                  );

-

-  if (!EFI_ERROR (Status)) {

-    return EFI_ALREADY_STARTED;

-  }

-

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiDhcp4ServiceBindingProtocolGuid,

-                  NULL,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_TEST_PROTOCOL

-                  );

-

-  if (!EFI_ERROR (Status)) {

-

-    Status = gBS->OpenProtocol (

-                    ControllerHandle,

-                    &gEfiMtftp4ServiceBindingProtocolGuid,

-                    NULL,

-                    This->DriverBindingHandle,

-                    ControllerHandle,

-                    EFI_OPEN_PROTOCOL_TEST_PROTOCOL

-                    );

-

-  }

-

-  return Status;

-}

-

-

-/**

-  Start this driver on ControllerHandle. This service is called by the

-  EFI boot service ConnectController(). In order to make

-  drivers as small as possible, there are a few calling restrictions for

-  this service. ConnectController() must follow these

-  calling restrictions. If any other agent wishes to call Start() it

-  must also follow these calling restrictions.

-

-  @param  This                 Protocol instance pointer.

-  @param  ControllerHandle     Handle of device to bind driver to

-  @param  RemainingDevicePath  Optional parameter use to pick a specific child

-                               device to start.

-

-  @retval EFI_SUCCESS          This driver is added to ControllerHandle

-  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle

-  @retval other                This driver does not support this device

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDriverBindingStart (

-  IN EFI_DRIVER_BINDING_PROTOCOL  * This,

-  IN EFI_HANDLE                   ControllerHandle,

-  IN EFI_DEVICE_PATH_PROTOCOL     * RemainingDevicePath OPTIONAL

-  )

-{

-  PXEBC_PRIVATE_DATA  *Private;

-  UINTN               Index;

-  EFI_STATUS          Status;

-  EFI_IP4_MODE_DATA   Ip4ModeData;

-

-  Private = AllocateZeroPool (sizeof (PXEBC_PRIVATE_DATA));

-  if (Private == NULL) {

-    return EFI_OUT_OF_RESOURCES;

-  }

-

-  Private->Signature                    = PXEBC_PRIVATE_DATA_SIGNATURE;

-  Private->Controller                   = ControllerHandle;

-  Private->Image                        = This->DriverBindingHandle;

-  CopyMem (&Private->PxeBc, &mPxeBcProtocolTemplate, sizeof (Private->PxeBc));

-  Private->PxeBc.Mode                   = &Private->Mode;

-  CopyMem (&Private->LoadFile, &mLoadFileProtocolTemplate, sizeof (Private->LoadFile));

-

-  Private->ProxyOffer.Packet.Offer.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;

-  Private->Dhcp4Ack.Packet.Ack.Size     = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;

-  Private->PxeReply.Packet.Ack.Size     = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;

-

-  for (Index = 0; Index < PXEBC_MAX_OFFER_NUM; Index++) {

-    Private->Dhcp4Offers[Index].Packet.Offer.Size = PXEBC_CACHED_DHCP4_PACKET_MAX_SIZE;

-  }

-

-  //

-  // Get the NII interface if it exists.

-  //

-  Status = gBS->OpenProtocol (

-                  ControllerHandle,

-                  &gEfiNetworkInterfaceIdentifierProtocolGuid_31,

-                  (VOID **) &Private->Nii,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

-                  );

-  if (EFI_ERROR (Status)) {

-    Private->Nii = NULL;

-  }

-

-  Status = NetLibCreateServiceChild (

-            ControllerHandle,

-            This->DriverBindingHandle,

-            &gEfiArpServiceBindingProtocolGuid,

-            &Private->ArpChild

-            );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Status = gBS->OpenProtocol (

-                  Private->ArpChild,

-                  &gEfiArpProtocolGuid,

-                  (VOID **) &Private->Arp,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Status = NetLibCreateServiceChild (

-            ControllerHandle,

-            This->DriverBindingHandle,

-            &gEfiDhcp4ServiceBindingProtocolGuid,

-            &Private->Dhcp4Child

-            );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Status = gBS->OpenProtocol (

-                  Private->Dhcp4Child,

-                  &gEfiDhcp4ProtocolGuid,

-                  (VOID **) &Private->Dhcp4,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Status = NetLibCreateServiceChild (

-             ControllerHandle,

-             This->DriverBindingHandle,

-             &gEfiIp4ServiceBindingProtocolGuid,

-             &Private->Ip4Child

-             );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Status = gBS->OpenProtocol (

-                  Private->Ip4Child,

-                  &gEfiIp4ProtocolGuid,

-                  (VOID **) &Private->Ip4,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  //

-  // Get max packet size from Ip4 to calculate block size for Tftp later.

-  //

-  Status = Private->Ip4->GetModeData (Private->Ip4, &Ip4ModeData, NULL, NULL);

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Private->Ip4MaxPacketSize = Ip4ModeData.MaxPacketSize;

-

-  Status = NetLibCreateServiceChild (

-             ControllerHandle,

-             This->DriverBindingHandle,

-             &gEfiMtftp4ServiceBindingProtocolGuid,

-             &Private->Mtftp4Child

-             );

-

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Status = gBS->OpenProtocol (

-                  Private->Mtftp4Child,

-                  &gEfiMtftp4ProtocolGuid,

-                  (VOID **) &Private->Mtftp4,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Status = NetLibCreateServiceChild (

-             ControllerHandle,

-             This->DriverBindingHandle,

-             &gEfiUdp4ServiceBindingProtocolGuid,

-             &Private->Udp4ReadChild

-             );

-

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  //

-  // The UDP instance for EfiPxeBcUdpRead

-  //

-  Status = gBS->OpenProtocol (

-                  Private->Udp4ReadChild,

-                  &gEfiUdp4ProtocolGuid,

-                  (VOID **) &Private->Udp4Read,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  //

-  // The UDP instance for EfiPxeBcUdpWrite

-  //

-  Status = NetLibCreateServiceChild (

-             ControllerHandle,

-             This->DriverBindingHandle,

-             &gEfiUdp4ServiceBindingProtocolGuid,

-             &Private->Udp4WriteChild

-             );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  Status = gBS->OpenProtocol (

-                  Private->Udp4WriteChild,

-                  &gEfiUdp4ProtocolGuid,

-                  (VOID **) &Private->Udp4Write,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_BY_DRIVER

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-  ZeroMem (&Private->Udp4CfgData, sizeof (EFI_UDP4_CONFIG_DATA));

-  Private->Udp4CfgData.AcceptBroadcast    = FALSE;

-  Private->Udp4CfgData.AcceptPromiscuous  = FALSE;

-  Private->Udp4CfgData.AcceptAnyPort      = TRUE;

-  Private->Udp4CfgData.AllowDuplicatePort = TRUE;

-  Private->Udp4CfgData.TypeOfService      = DEFAULT_ToS;

-  Private->Udp4CfgData.TimeToLive         = DEFAULT_TTL;

-  Private->Udp4CfgData.DoNotFragment      = FALSE;

-  Private->Udp4CfgData.ReceiveTimeout     = PXEBC_DEFAULT_LIFETIME;

-  Private->Udp4CfgData.UseDefaultAddress  = FALSE;

-

-  PxeBcInitSeedPacket (&Private->SeedPacket, Private->Udp4Read);

-  Private->MacLen = Private->SeedPacket.Dhcp4.Header.HwAddrLen;

-  CopyMem (&Private->Mac, &Private->SeedPacket.Dhcp4.Header.ClientHwAddr[0], Private->MacLen);

-

-

-  ZeroMem (&Private->Ip4ConfigData, sizeof (EFI_IP4_CONFIG_DATA));

-  Private->Ip4ConfigData.DefaultProtocol   = EFI_IP_PROTO_ICMP;

-  Private->Ip4ConfigData.AcceptIcmpErrors  = TRUE;

-  Private->Ip4ConfigData.TypeOfService     = DEFAULT_ToS;

-  Private->Ip4ConfigData.TimeToLive        = DEFAULT_TTL;

-  Private->Ip4ConfigData.DoNotFragment     = FALSE;

-  Private->Ip4ConfigData.RawData           = FALSE;

-

-  Status = gBS->InstallMultipleProtocolInterfaces (

-                  &ControllerHandle,

-                  &gEfiPxeBaseCodeProtocolGuid,

-                  &Private->PxeBc,

-                  &gEfiLoadFileProtocolGuid,

-                  &Private->LoadFile,

-                  NULL

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-  //

-  // Locate Ip4->Ip4Config2 and store it for set IPv4 Policy.

-  //

-  Status = gBS->HandleProtocol (

-                  ControllerHandle,

-                  &gEfiIp4Config2ProtocolGuid,

-                  (VOID **) &Private->Ip4Config2

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_ERROR;

-  }

-

-  return EFI_SUCCESS;

-

-ON_ERROR:

-

-  if (Private->Udp4WriteChild != NULL) {

-    gBS->CloseProtocol (

-           Private->Udp4WriteChild,

-           &gEfiUdp4ProtocolGuid,

-           This->DriverBindingHandle,

-           ControllerHandle

-           );

-    NetLibDestroyServiceChild (

-      ControllerHandle,

-      This->DriverBindingHandle,

-      &gEfiUdp4ServiceBindingProtocolGuid,

-      Private->Udp4WriteChild

-      );

-  }

-

-  if (Private->Udp4ReadChild != NULL) {

-    gBS->CloseProtocol (

-          Private->Udp4ReadChild,

-          &gEfiUdp4ProtocolGuid,

-          This->DriverBindingHandle,

-          ControllerHandle

-          );

-    NetLibDestroyServiceChild (

-      ControllerHandle,

-      This->DriverBindingHandle,

-      &gEfiUdp4ServiceBindingProtocolGuid,

-      Private->Udp4ReadChild

-      );

-  }

-

-  if (Private->Mtftp4Child != NULL) {

-    gBS->CloseProtocol (

-          Private->Mtftp4Child,

-          &gEfiMtftp4ProtocolGuid,

-          This->DriverBindingHandle,

-          ControllerHandle

-          );

-

-    NetLibDestroyServiceChild (

-      ControllerHandle,

-      This->DriverBindingHandle,

-      &gEfiMtftp4ServiceBindingProtocolGuid,

-      Private->Mtftp4Child

-      );

-  }

-

-  if (Private->Ip4Child != NULL) {

-    gBS->CloseProtocol (

-          Private->Ip4Child,

-          &gEfiIp4ProtocolGuid,

-          This->DriverBindingHandle,

-          ControllerHandle

-          );

-

-    NetLibDestroyServiceChild (

-      ControllerHandle,

-      This->DriverBindingHandle,

-      &gEfiIp4ServiceBindingProtocolGuid,

-      Private->Ip4Child

-      );

-  }

-

-  if (Private->Dhcp4Child != NULL) {

-    gBS->CloseProtocol (

-          Private->Dhcp4Child,

-          &gEfiDhcp4ProtocolGuid,

-          This->DriverBindingHandle,

-          ControllerHandle

-          );

-

-    NetLibDestroyServiceChild (

-      ControllerHandle,

-      This->DriverBindingHandle,

-      &gEfiDhcp4ServiceBindingProtocolGuid,

-      Private->Dhcp4Child

-      );

-  }

-

-  if (Private->ArpChild != NULL) {

-    gBS->CloseProtocol (

-          Private->ArpChild,

-          &gEfiArpProtocolGuid,

-          This->DriverBindingHandle,

-          ControllerHandle

-          );

-

-    NetLibDestroyServiceChild (

-      ControllerHandle,

-      This->DriverBindingHandle,

-      &gEfiArpServiceBindingProtocolGuid,

-      Private->ArpChild

-      );

-  }

-

-  FreePool (Private);

-

-  return Status;

-}

-

-

-/**

-  Stop this driver on ControllerHandle. This service is called by the

-  EFI boot service DisconnectController(). In order to

-  make drivers as small as possible, there are a few calling

-  restrictions for this service. DisconnectController()

-  must follow these calling restrictions. If any other agent wishes

-  to call Stop() it must also follow these calling restrictions.

-

-  @param  This              Protocol instance pointer.

-  @param  ControllerHandle  Handle of device to stop driver on

-  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of

-                            children is zero stop the entire bus driver.

-  @param  ChildHandleBuffer List of Child Handles to Stop.

-

-  @retval EFI_SUCCESS       This driver is removed ControllerHandle

-  @retval other             This driver was not removed from this device

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDriverBindingStop (

-  IN EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN EFI_HANDLE                   ControllerHandle,

-  IN UINTN                        NumberOfChildren,

-  IN EFI_HANDLE                   *ChildHandleBuffer

-  )

-{

-  PXEBC_PRIVATE_DATA          *Private;

-  EFI_PXE_BASE_CODE_PROTOCOL  *PxeBc;

-  EFI_HANDLE                  NicHandle;

-  EFI_STATUS                  Status;

-

-  NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiArpProtocolGuid);

-  if (NicHandle == NULL) {

-    NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiDhcp4ProtocolGuid);

-

-    if (NicHandle == NULL) {

-      NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiIp4ProtocolGuid);

-

-      if (NicHandle == NULL) {

-        NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiUdp4ProtocolGuid);

-

-        if (NicHandle == NULL) {

-          NicHandle = NetLibGetNicHandle (ControllerHandle, &gEfiMtftp4ProtocolGuid);

-

-          if (NicHandle == NULL) {

-            return EFI_SUCCESS;

-          }

-        }

-      }

-    }

-  }

-

-  Status = gBS->OpenProtocol (

-                  NicHandle,

-                  &gEfiPxeBaseCodeProtocolGuid,

-                  (VOID **) &PxeBc,

-                  This->DriverBindingHandle,

-                  ControllerHandle,

-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

-                  );

-

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Stop functionality of PXE Base Code protocol

-  //

-  Status = PxeBc->Stop (PxeBc);

-  if (Status != EFI_SUCCESS && Status != EFI_NOT_STARTED) {

-    return Status;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (PxeBc);

-

-  Status = gBS->UninstallMultipleProtocolInterfaces (

-                  NicHandle,

-                  &gEfiPxeBaseCodeProtocolGuid,

-                  &Private->PxeBc,

-                  &gEfiLoadFileProtocolGuid,

-                  &Private->LoadFile,

-                  NULL

-                  );

-

-  if (!EFI_ERROR (Status)) {

-

-    gBS->CloseProtocol (

-           Private->Udp4WriteChild,

-           &gEfiUdp4ProtocolGuid,

-           This->DriverBindingHandle,

-           NicHandle

-           );

-    NetLibDestroyServiceChild (

-      ControllerHandle,

-      This->DriverBindingHandle,

-      &gEfiUdp4ServiceBindingProtocolGuid,

-      Private->Udp4WriteChild

-      );

-

-    gBS->CloseProtocol (

-          Private->Udp4ReadChild,

-          &gEfiUdp4ProtocolGuid,

-          This->DriverBindingHandle,

-          NicHandle

-          );

-    NetLibDestroyServiceChild (

-      NicHandle,

-      This->DriverBindingHandle,

-      &gEfiUdp4ServiceBindingProtocolGuid,

-      Private->Udp4ReadChild

-      );

-

-    gBS->CloseProtocol (

-          Private->Dhcp4Child,

-          &gEfiDhcp4ProtocolGuid,

-          This->DriverBindingHandle,

-          NicHandle

-          );

-    NetLibDestroyServiceChild (

-      NicHandle,

-      This->DriverBindingHandle,

-      &gEfiDhcp4ServiceBindingProtocolGuid,

-      Private->Dhcp4Child

-      );

-

-    gBS->CloseProtocol (

-          Private->Mtftp4Child,

-          &gEfiMtftp4ProtocolGuid,

-          This->DriverBindingHandle,

-          NicHandle

-          );

-    NetLibDestroyServiceChild (

-      NicHandle,

-      This->DriverBindingHandle,

-      &gEfiMtftp4ServiceBindingProtocolGuid,

-      Private->Mtftp4Child

-      );

-

-    gBS->CloseProtocol (

-          Private->Ip4Child,

-          &gEfiIp4ProtocolGuid,

-          This->DriverBindingHandle,

-          NicHandle

-          );

-    NetLibDestroyServiceChild (

-      NicHandle,

-      This->DriverBindingHandle,

-      &gEfiIp4ServiceBindingProtocolGuid,

-      Private->Ip4Child

-      );

-

-    gBS->CloseProtocol (

-          Private->ArpChild,

-          &gEfiArpProtocolGuid,

-          This->DriverBindingHandle,

-          NicHandle

-          );

-    NetLibDestroyServiceChild (

-      NicHandle,

-      This->DriverBindingHandle,

-      &gEfiArpServiceBindingProtocolGuid,

-      Private->ArpChild

-      );

-

-    FreePool (Private);

-  }

-

-  return Status;

-}

-

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDriver.h b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDriver.h
deleted file mode 100644
index b7bf069dd6..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcDriver.h
+++ /dev/null
@@ -1,102 +0,0 @@
-/** @file

-

-Copyright (c) 2007 - 2018, 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

-which 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.

-

-**/

-

-#ifndef __EFI_PXEBC_DRIVER_H__

-#define __EFI_PXEBC_DRIVER_H__

-

-/**

-  Test to see if this driver supports ControllerHandle. This service

-  is called by the EFI boot service ConnectController(). In

-  order to make drivers as small as possible, there are a few calling

-  restrictions for this service. ConnectController() must

-  follow these calling restrictions. If any other agent wishes to call

-  Supported() it must also follow these calling restrictions.

-  PxeBc requires DHCP4 and MTFTP4 protocols.

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test

-  @param  RemainingDevicePath Optional parameter use to pick a specific child

-                              device to start.

-

-  @retval EFI_SUCCESS         This driver supports this device

-  @retval EFI_ALREADY_STARTED This driver is already running on this device

-  @retval other               This driver does not support this device

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDriverBindingSupported (

-  IN EFI_DRIVER_BINDING_PROTOCOL  * This,

-  IN EFI_HANDLE                   ControllerHandle,

-  IN EFI_DEVICE_PATH_PROTOCOL     * RemainingDevicePath OPTIONAL

-  );

-

-/**

-  Start this driver on ControllerHandle. This service is called by the

-  EFI boot service ConnectController(). In order to make

-  drivers as small as possible, there are a few calling restrictions for

-  this service. ConnectController() must follow these

-  calling restrictions. If any other agent wishes to call Start() it

-  must also follow these calling restrictions.

-

-  @param  This                 Protocol instance pointer.

-  @param  ControllerHandle     Handle of device to bind driver to

-  @param  RemainingDevicePath  Optional parameter use to pick a specific child

-                               device to start.

-

-  @retval EFI_SUCCESS          This driver is added to ControllerHandle

-  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle

-  @retval other                This driver does not support this device

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDriverBindingStart (

-  IN EFI_DRIVER_BINDING_PROTOCOL  * This,

-  IN EFI_HANDLE                   ControllerHandle,

-  IN EFI_DEVICE_PATH_PROTOCOL     * RemainingDevicePath OPTIONAL

-  );

-

-/**

-  Stop this driver on ControllerHandle. This service is called by the

-  EFI boot service DisconnectController(). In order to

-  make drivers as small as possible, there are a few calling

-  restrictions for this service. DisconnectController()

-  must follow these calling restrictions. If any other agent wishes

-  to call Stop() it must also follow these calling restrictions.

-

-  @param  This              Protocol instance pointer.

-  @param  ControllerHandle  Handle of device to stop driver on

-  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of

-                            children is zero stop the entire bus driver.

-  @param  ChildHandleBuffer List of Child Handles to Stop.

-

-  @retval EFI_SUCCESS       This driver is removed ControllerHandle

-  @retval other             This driver was not removed from this device

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcDriverBindingStop (

-  IN EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN EFI_HANDLE                   ControllerHandle,

-  IN UINTN                        NumberOfChildren,

-  IN EFI_HANDLE                   *ChildHandleBuffer

-  );

-

-extern EFI_COMPONENT_NAME2_PROTOCOL gPxeBcComponentName2;

-extern EFI_COMPONENT_NAME_PROTOCOL  gPxeBcComponentName;

-extern EFI_DRIVER_BINDING_PROTOCOL  gPxeBcDriverBinding;

-

-#endif

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c
deleted file mode 100644
index 3fa3be99c1..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.c
+++ /dev/null
@@ -1,2989 +0,0 @@
-/** @file

-  Interface routines for PxeBc.

-

-Copyright (c) 2007 - 2018, 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

-which 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 "PxeBcImpl.h"

-

-UINT32  mPxeDhcpTimeout[4] = { 4, 8, 16, 32 };

-

-/**

-  Get and record the arp cache.

-

-  @param  This                    Pointer to EFI_PXE_BC_PROTOCOL

-

-  @retval EFI_SUCCESS             Arp cache updated successfully

-  @retval others                  If error occurs when getting arp cache

-

-**/

-EFI_STATUS

-UpdateArpCache (

-  IN EFI_PXE_BASE_CODE_PROTOCOL     * This

-  )

-{

-  PXEBC_PRIVATE_DATA      *Private;

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-  EFI_STATUS              Status;

-  UINT32                  EntryLength;

-  UINT32                  EntryCount;

-  EFI_ARP_FIND_DATA       *Entries;

-  UINT32                  Index;

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = Private->PxeBc.Mode;

-

-  Status = Private->Arp->Find (

-                     Private->Arp,

-                     TRUE,

-                     NULL,

-                     &EntryLength,

-                     &EntryCount,

-                     &Entries,

-                     TRUE

-                     );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  Mode->ArpCacheEntries = MIN (

-                           EntryCount,

-                           EFI_PXE_BASE_CODE_MAX_ARP_ENTRIES

-                           );

-  for (Index = 0; Index < Mode->ArpCacheEntries; Index ++) {

-    CopyMem (

-      &Mode->ArpCache[Index].IpAddr,

-      Entries + 1,

-      Entries->SwAddressLength

-      );

-    CopyMem (

-      &Mode->ArpCache[Index].MacAddr,

-      (UINT8 *) (Entries + 1) + Entries->SwAddressLength,

-      Entries->HwAddressLength

-      );

-    //

-    // Slip to the next FindData.

-    //

-    Entries = (EFI_ARP_FIND_DATA *) ((UINT8 *) Entries + EntryLength);

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Timeout routine to update arp cache.

-

-  @param  Event              Pointer to EFI_PXE_BC_PROTOCOL

-  @param  Context            Context of the timer event

-

-**/

-VOID

-EFIAPI

-ArpCacheUpdateTimeout (

-  IN EFI_EVENT    Event,

-  IN VOID         *Context

-  )

-{

-  UpdateArpCache ((EFI_PXE_BASE_CODE_PROTOCOL *) Context);

-}

-

-/**

-  Do arp resolution from arp cache in PxeBcMode.

-

-  @param  PxeBcMode      The PXE BC mode to look into.

-  @param  Ip4Addr        The Ip4 address for resolution.

-  @param  MacAddress     The resoluted MAC address if the resolution is successful.

-                         The value is undefined if resolution fails.

-

-  @retval TRUE           The resolution is successful.

-  @retval FALSE          Otherwise.

-

-**/

-BOOLEAN

-FindInArpCache (

-  IN  EFI_PXE_BASE_CODE_MODE    *PxeBcMode,

-  IN  EFI_IPv4_ADDRESS          *Ip4Addr,

-  OUT EFI_MAC_ADDRESS           *MacAddress

-  )

-{

-  UINT32                  Index;

-

-  for (Index = 0; Index < PxeBcMode->ArpCacheEntries; Index ++) {

-    if (EFI_IP4_EQUAL (&PxeBcMode->ArpCache[Index].IpAddr.v4, Ip4Addr)) {

-      CopyMem (

-        MacAddress,

-        &PxeBcMode->ArpCache[Index].MacAddr,

-        sizeof (EFI_MAC_ADDRESS)

-        );

-      return TRUE;

-    }

-  }

-

-  return FALSE;

-}

-

-/**

-  Notify function for the ICMP receive token, used to process

-  the received ICMP packets.

-

-  @param  Context               The PXEBC private data.

-

-**/

-VOID

-EFIAPI

-IcmpErrorListenHandlerDpc (

-  IN VOID      *Context

-  )

-{

-  EFI_STATUS              Status;

-  EFI_IP4_RECEIVE_DATA    *RxData;

-  EFI_IP4_PROTOCOL        *Ip4;

-  PXEBC_PRIVATE_DATA      *Private;

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-  UINTN                   Index;

-  UINT32                  CopiedLen;

-  UINT8                   *CopiedPointer;

-

-  Private = (PXEBC_PRIVATE_DATA *) Context;

-  Mode    = &Private->Mode;

-  Status  = Private->IcmpErrorRcvToken.Status;

-  RxData  = Private->IcmpErrorRcvToken.Packet.RxData;

-  Ip4     = Private->Ip4;

-

-  if (Status == EFI_ABORTED) {

-    //

-    // The reception is actively aborted by the consumer, directly return.

-    //

-    return;

-  }

-

-  if (RxData == NULL) {

-    goto Resume;

-  }

-

-  if (Status != EFI_ICMP_ERROR) {

-    //

-    // The return status should be recognized as EFI_ICMP_ERROR.

-    //

-    goto CleanUp;

-  }

-

-  if (EFI_IP4 (RxData->Header->SourceAddress) != 0 &&

-      (NTOHL (Mode->SubnetMask.Addr[0]) != 0) &&

-      IP4_NET_EQUAL (NTOHL(Mode->StationIp.Addr[0]), EFI_NTOHL (RxData->Header->SourceAddress), NTOHL (Mode->SubnetMask.Addr[0])) &&

-      !NetIp4IsUnicast (EFI_NTOHL (RxData->Header->SourceAddress), NTOHL (Mode->SubnetMask.Addr[0]))) {

-    //

-    // The source address is not zero and it's not a unicast IP address, discard it.

-    //

-    goto CleanUp;

-  }

-

-  if (!EFI_IP4_EQUAL (&RxData->Header->DestinationAddress, &Mode->StationIp.v4)) {

-    //

-    // The dest address is not equal to Station Ip address, discard it.

-    //

-    goto CleanUp;

-  }

-

-  //

-  // Constructor ICMP error packet

-  //

-  CopiedLen = 0;

-  CopiedPointer = (UINT8 *) &Mode->IcmpError;

-

-  for (Index = 0; Index < RxData->FragmentCount; Index ++) {

-    CopiedLen += RxData->FragmentTable[Index].FragmentLength;

-    if (CopiedLen <= sizeof (EFI_PXE_BASE_CODE_ICMP_ERROR)) {

-      CopyMem (

-        CopiedPointer,

-        RxData->FragmentTable[Index].FragmentBuffer,

-        RxData->FragmentTable[Index].FragmentLength

-        );

-    } else {

-      CopyMem (

-        CopiedPointer,

-        RxData->FragmentTable[Index].FragmentBuffer,

-        CopiedLen - sizeof (EFI_PXE_BASE_CODE_ICMP_ERROR)

-        );

-    }

-    CopiedPointer += CopiedLen;

-  }

-

-CleanUp:

-  gBS->SignalEvent (RxData->RecycleSignal);

-

-Resume:

-  Ip4->Receive (Ip4, &(Private->IcmpErrorRcvToken));

-}

-

-/**

-  Request IcmpErrorListenHandlerDpc as a DPC at TPL_CALLBACK

-

-  @param  Event                 The event signaled.

-  @param  Context               The context passed in by the event notifier.

-

-**/

-VOID

-EFIAPI

-IcmpErrorListenHandler (

-  IN EFI_EVENT Event,

-  IN VOID      *Context

-  )

-{

-  //

-  // Request IpIoListenHandlerDpc as a DPC at TPL_CALLBACK

-  //

-  QueueDpc (TPL_CALLBACK, IcmpErrorListenHandlerDpc, Context);

-}

-

-/**

-  Enables the use of the PXE Base Code Protocol functions.

-

-  This function enables the use of the PXE Base Code Protocol functions. If the

-  Started field of the EFI_PXE_BASE_CODE_MODE structure is already TRUE, then

-  EFI_ALREADY_STARTED will be returned. If UseIpv6 is TRUE, then IPv6 formatted

-  addresses will be used in this session. If UseIpv6 is FALSE, then IPv4 formatted

-  addresses will be used in this session. If UseIpv6 is TRUE, and the Ipv6Supported

-  field of the EFI_PXE_BASE_CODE_MODE structure is FALSE, then EFI_UNSUPPORTED will

-  be returned. If there is not enough memory or other resources to start the PXE

-  Base Code Protocol, then EFI_OUT_OF_RESOURCES will be returned. Otherwise, the

-  PXE Base Code Protocol will be started, and all of the fields of the EFI_PXE_BASE_CODE_MODE

-  structure will be initialized as follows:

-    StartedSet to TRUE.

-    Ipv6SupportedUnchanged.

-    Ipv6AvailableUnchanged.

-    UsingIpv6Set to UseIpv6.

-    BisSupportedUnchanged.

-    BisDetectedUnchanged.

-    AutoArpSet to TRUE.

-    SendGUIDSet to FALSE.

-    TTLSet to DEFAULT_TTL.

-    ToSSet to DEFAULT_ToS.

-    DhcpCompletedSet to FALSE.

-    ProxyOfferReceivedSet to FALSE.

-    StationIpSet to an address of all zeros.

-    SubnetMaskSet to a subnet mask of all zeros.

-    DhcpDiscoverZero-filled.

-    DhcpAckZero-filled.

-    ProxyOfferZero-filled.

-    PxeDiscoverValidSet to FALSE.

-    PxeDiscoverZero-filled.

-    PxeReplyValidSet to FALSE.

-    PxeReplyZero-filled.

-    PxeBisReplyValidSet to FALSE.

-    PxeBisReplyZero-filled.

-    IpFilterSet the Filters field to 0 and the IpCnt field to 0.

-    ArpCacheEntriesSet to 0.

-    ArpCacheZero-filled.

-    RouteTableEntriesSet to 0.

-    RouteTableZero-filled.

-    IcmpErrorReceivedSet to FALSE.

-    IcmpErrorZero-filled.

-    TftpErroReceivedSet to FALSE.

-    TftpErrorZero-filled.

-    MakeCallbacksSet to TRUE if the PXE Base Code Callback Protocol is available.

-    Set to FALSE if the PXE Base Code Callback Protocol is not available.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  UseIpv6               Specifies the type of IP addresses that are to be used during the session

-                                that is being started. Set to TRUE for IPv6 addresses, and FALSE for

-                                IPv4 addresses.

-

-  @retval EFI_SUCCESS           The PXE Base Code Protocol was started.

-  @retval EFI_DEVICE_ERROR      The network device encountered an error during this oper

-  @retval EFI_UNSUPPORTED       UseIpv6 is TRUE, but the Ipv6Supported field of the

-                                EFI_PXE_BASE_CODE_MODE structure is FALSE.

-  @retval EFI_ALREADY_STARTED   The PXE Base Code Protocol is already in the started state.

-  @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid

-                                EFI_PXE_BASE_CODE_PROTOCOL structure.

-  @retval EFI_OUT_OF_RESOURCES  Could not allocate enough memory or other resources to start the

-                                PXE Base Code Protocol.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcStart (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       *This,

-  IN BOOLEAN                          UseIpv6

-  )

-{

-  PXEBC_PRIVATE_DATA      *Private;

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-  EFI_STATUS              Status;

-

-  if (This == NULL) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = Private->PxeBc.Mode;

-

-  if (Mode->Started) {

-    return EFI_ALREADY_STARTED;

-  }

-

-  if (UseIpv6) {

-    //

-    // IPv6 is not supported now.

-    //

-    return EFI_UNSUPPORTED;

-  }

-

-  AsciiPrint ("\n>>Start PXE over IPv4");

-

-  //

-  // Configure the udp4 instance to let it receive data

-  //

-  Status = Private->Udp4Read->Configure (

-                               Private->Udp4Read,

-                               &Private->Udp4CfgData

-                               );

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-

-  //

-  // Configure block size for TFTP as a default value to handle all link layers.

-  //

-  Private->BlockSize   = MIN (Private->Ip4MaxPacketSize, PXEBC_DEFAULT_PACKET_SIZE) -

-                           PXEBC_DEFAULT_UDP_OVERHEAD_SIZE - PXEBC_DEFAULT_TFTP_OVERHEAD_SIZE;

-  //

-  // If PcdTftpBlockSize is set to non-zero, override the default value.

-  //

-  if (PcdGet64 (PcdTftpBlockSize) != 0) {

-    Private->BlockSize   = (UINTN) PcdGet64 (PcdTftpBlockSize);

-  }

-

-  Private->AddressIsOk = FALSE;

-

-  ZeroMem (Mode, sizeof (EFI_PXE_BASE_CODE_MODE));

-

-  Mode->Started = TRUE;

-  Mode->TTL     = DEFAULT_TTL;

-  Mode->ToS     = DEFAULT_ToS;

-  Mode->AutoArp = TRUE;

-

-  //

-  // Create the event for Arp Cache checking.

-  //

-  Status = gBS->CreateEvent (

-                  EVT_TIMER | EVT_NOTIFY_SIGNAL,

-                  TPL_CALLBACK,

-                  ArpCacheUpdateTimeout,

-                  This,

-                  &Private->GetArpCacheEvent

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  //

-  // Start the timeout timer event.

-  //

-  Status = gBS->SetTimer (

-                  Private->GetArpCacheEvent,

-                  TimerPeriodic,

-                  TICKS_PER_SECOND

-                  );

-

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  //

-  // Create ICMP error receiving event

-  //

-  Status = gBS->CreateEvent (

-                  EVT_NOTIFY_SIGNAL,

-                  TPL_NOTIFY,

-                  IcmpErrorListenHandler,

-                  Private,

-                  &(Private->IcmpErrorRcvToken.Event)

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  //

-  //DHCP4 service allows only one of its children to be configured in

-  //the active state, If the DHCP4 D.O.R.A started by IP4 auto

-  //configuration and has not been completed, the Dhcp4 state machine

-  //will not be in the right state for the PXE to start a new round D.O.R.A.

-  //so we need to switch it's policy to static.

-  //

-  Status = PxeBcSetIp4Policy (Private);

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  Status = Private->Ip4->Configure (Private->Ip4, &Private->Ip4ConfigData);

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  //

-  // start to listen incoming packet

-  //

-  Status = Private->Ip4->Receive (Private->Ip4, &Private->IcmpErrorRcvToken);

-  if (!EFI_ERROR (Status)) {

-    return Status;

-  }

-

-ON_EXIT:

-  Private->Ip4->Configure (Private->Ip4, NULL);

-

-  if (Private->IcmpErrorRcvToken.Event != NULL) {

-    gBS->CloseEvent (Private->IcmpErrorRcvToken.Event);

-  }

-

-  if (Private->GetArpCacheEvent != NULL) {

-    gBS->SetTimer (Private->GetArpCacheEvent, TimerCancel, 0);

-    gBS->CloseEvent (Private->GetArpCacheEvent);

-  }

-

-  Mode->Started = FALSE;

-  Mode->TTL     = 0;

-  Mode->ToS     = 0;

-  Mode->AutoArp = FALSE;

-

-  return Status;

-}

-

-

-/**

-  Disables the use of the PXE Base Code Protocol functions.

-

-  This function stops all activity on the network device. All the resources allocated

-  in Start() are released, the Started field of the EFI_PXE_BASE_CODE_MODE structure is

-  set to FALSE and EFI_SUCCESS is returned. If the Started field of the EFI_PXE_BASE_CODE_MODE

-  structure is already FALSE, then EFI_NOT_STARTED will be returned.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-

-  @retval EFI_SUCCESS           The PXE Base Code Protocol was stopped.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is already in the stopped state.

-  @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid

-                                EFI_PXE_BASE_CODE_PROTOCOL structure.

-  @retval EFI_DEVICE_ERROR      The network device encountered an error during this operation.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcStop (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       *This

-  )

-{

-  PXEBC_PRIVATE_DATA      *Private;

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-

-  if (This == NULL) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = Private->PxeBc.Mode;

-

-  if (!Mode->Started) {

-    return EFI_NOT_STARTED;

-  }

-

-  Private->Ip4->Cancel (Private->Ip4, NULL);

-  //

-  // Dispatch the DPCs queued by the NotifyFunction of the canceled rx token's

-  // events.

-  //

-  DispatchDpc ();

-

-  Private->Ip4->Configure (Private->Ip4, NULL);

-

-  //

-  // Close the ICMP error receiving event.

-  //

-  gBS->CloseEvent (Private->IcmpErrorRcvToken.Event);

-

-  //

-  // Cancel the TimeoutEvent timer.

-  //

-  gBS->SetTimer (Private->GetArpCacheEvent, TimerCancel, 0);

-

-  //

-  // Close the TimeoutEvent event.

-  //

-  gBS->CloseEvent (Private->GetArpCacheEvent);

-

-  Mode->Started = FALSE;

-

-  Private->CurrentUdpSrcPort = 0;

-  Private->Udp4Write->Configure (Private->Udp4Write, NULL);

-  Private->Udp4Read->Groups (Private->Udp4Read, FALSE, NULL);

-  Private->Udp4Read->Configure (Private->Udp4Read, NULL);

-

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

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

-

-  Private->FileSize = 0;

-

-  return EFI_SUCCESS;

-}

-

-

-/**

-  Attempts to complete a DHCPv4 D.O.R.A. (discover / offer / request / acknowledge) or DHCPv6

-  S.A.R.R (solicit / advertise / request / reply) sequence.

-

-  This function attempts to complete the DHCP sequence. If this sequence is completed,

-  then EFI_SUCCESS is returned, and the DhcpCompleted, ProxyOfferReceived, StationIp,

-  SubnetMask, DhcpDiscover, DhcpAck, and ProxyOffer fields of the EFI_PXE_BASE_CODE_MODE

-  structure are filled in.

-  If SortOffers is TRUE, then the cached DHCP offer packets will be sorted before

-  they are tried. If SortOffers is FALSE, then the cached DHCP offer packets will

-  be tried in the order in which they are received. Please see the Preboot Execution

-  Environment (PXE) Specification for additional details on the implementation of DHCP.

-  This function can take at least 31 seconds to timeout and return control to the

-  caller. If the DHCP sequence does not complete, then EFI_TIMEOUT will be returned.

-  If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,

-  then the DHCP sequence will be stopped and EFI_ABORTED will be returned.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  SortOffers            TRUE if the offers received should be sorted. Set to FALSE to try the

-                                offers in the order that they are received.

-

-  @retval EFI_SUCCESS           Valid DHCP has completed.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER The This parameter is NULL or does not point to a valid

-                                EFI_PXE_BASE_CODE_PROTOCOL structure.

-  @retval EFI_DEVICE_ERROR      The network device encountered an error during this operation.

-  @retval EFI_OUT_OF_RESOURCES  Could not allocate enough memory to complete the DHCP Protocol.

-  @retval EFI_ABORTED           The callback function aborted the DHCP Protocol.

-  @retval EFI_TIMEOUT           The DHCP Protocol timed out.

-  @retval EFI_ICMP_ERROR        An ICMP error packet was received during the DHCP session.

-  @retval EFI_NO_RESPONSE       Valid PXE offer was not received.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcDhcp (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       *This,

-  IN BOOLEAN                          SortOffers

-  )

-{

-  PXEBC_PRIVATE_DATA           *Private;

-  EFI_PXE_BASE_CODE_MODE       *Mode;

-  EFI_DHCP4_PROTOCOL           *Dhcp4;

-  EFI_DHCP4_CONFIG_DATA        Dhcp4CfgData;

-  EFI_DHCP4_MODE_DATA          Dhcp4Mode;

-  EFI_DHCP4_PACKET_OPTION      *OptList[PXEBC_DHCP4_MAX_OPTION_NUM];

-  UINT32                       OptCount;

-  EFI_STATUS                   Status;

-  EFI_ARP_CONFIG_DATA          ArpConfigData;

-  EFI_PXE_BASE_CODE_IP_FILTER  IpFilter;

-

-  if (This == NULL) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Status              = EFI_SUCCESS;

-  Private             = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode                = Private->PxeBc.Mode;

-  Dhcp4               = Private->Dhcp4;

-  Private->Function   = EFI_PXE_BASE_CODE_FUNCTION_DHCP;

-  Private->SortOffers = SortOffers;

-

-  if (!Mode->Started) {

-    return EFI_NOT_STARTED;

-  }

-

-  Mode->IcmpErrorReceived = FALSE;

-

-  //

-  // Stop Udp4Read instance

-  //

-  Private->Udp4Read->Configure (Private->Udp4Read, NULL);

-

-  //

-  // Initialize the DHCP options and build the option list

-  //

-  OptCount = PxeBcBuildDhcpOptions (Private, OptList, TRUE);

-

-  //

-  // Set the DHCP4 config data.

-  // The four discovery timeouts are 4, 8, 16, 32 seconds respectively.

-  //

-  ZeroMem (&Dhcp4CfgData, sizeof (EFI_DHCP4_CONFIG_DATA));

-  Dhcp4CfgData.OptionCount      = OptCount;

-  Dhcp4CfgData.OptionList       = OptList;

-  Dhcp4CfgData.Dhcp4Callback    = PxeBcDhcpCallBack;

-  Dhcp4CfgData.CallbackContext  = Private;

-  Dhcp4CfgData.DiscoverTryCount = 4;

-  Dhcp4CfgData.DiscoverTimeout  = mPxeDhcpTimeout;

-

-  Status          = Dhcp4->Configure (Dhcp4, &Dhcp4CfgData);

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  //

-  // Zero those arrays to record the varies numbers of DHCP OFFERS.

-  //

-  Private->GotProxyOffer = FALSE;

-  Private->NumOffers     = 0;

-  Private->BootpIndex    = 0;

-  ZeroMem (Private->ServerCount, sizeof (Private->ServerCount));

-  ZeroMem (Private->ProxyIndex, sizeof (Private->ProxyIndex));

-

-  Status = Dhcp4->Start (Dhcp4, NULL);

-  if (EFI_ERROR (Status) && Status != EFI_ALREADY_STARTED) {

-    if (Status == EFI_ICMP_ERROR) {

-      Mode->IcmpErrorReceived = TRUE;

-    }

-    goto ON_EXIT;

-  }

-

-  Status = Dhcp4->GetModeData (Dhcp4, &Dhcp4Mode);

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  ASSERT (Dhcp4Mode.State == Dhcp4Bound);

-

-  CopyMem (&Private->StationIp, &Dhcp4Mode.ClientAddress, sizeof (EFI_IPv4_ADDRESS));

-  CopyMem (&Private->SubnetMask, &Dhcp4Mode.SubnetMask, sizeof (EFI_IPv4_ADDRESS));

-  CopyMem (&Private->GatewayIp, &Dhcp4Mode.RouterAddress, sizeof (EFI_IPv4_ADDRESS));

-

-  CopyMem (&Mode->StationIp, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));

-  CopyMem (&Mode->SubnetMask, &Private->SubnetMask, sizeof (EFI_IPv4_ADDRESS));

-

-  //

-  // Check the selected offer to see whether BINL is required, if no or BINL is

-  // finished, set the various Mode members.

-  //

-  Status = PxeBcCheckSelectedOffer (Private);

-

-  AsciiPrint ("\n  Station IP address is ");

-

-  PxeBcShowIp4Addr (&Private->StationIp.v4);

-  AsciiPrint ("\n");

-

-ON_EXIT:

-  if (EFI_ERROR (Status)) {

-    Dhcp4->Stop (Dhcp4);

-    Dhcp4->Configure (Dhcp4, NULL);

-  } else {

-    //

-    // Remove the previously configured option list and callback function

-    //

-    ZeroMem (&Dhcp4CfgData, sizeof (EFI_DHCP4_CONFIG_DATA));

-    Dhcp4->Configure (Dhcp4, &Dhcp4CfgData);

-

-    Private->AddressIsOk = TRUE;

-

-    if (!Mode->UsingIpv6) {

-      //

-      // If in IPv4 mode, configure the corresponding ARP with this new

-      // station IP address.

-      //

-      ZeroMem (&ArpConfigData, sizeof (EFI_ARP_CONFIG_DATA));

-

-      ArpConfigData.SwAddressType   = 0x0800;

-      ArpConfigData.SwAddressLength = (UINT8) sizeof (EFI_IPv4_ADDRESS);

-      ArpConfigData.StationAddress  = &Private->StationIp.v4;

-

-      Private->Arp->Configure (Private->Arp, NULL);

-      Private->Arp->Configure (Private->Arp, &ArpConfigData);

-

-      //

-      // Updated the route table. Fill the first entry.

-      //

-      Mode->RouteTableEntries                = 1;

-      Mode->RouteTable[0].IpAddr.Addr[0]     = Private->StationIp.Addr[0] & Private->SubnetMask.Addr[0];

-      Mode->RouteTable[0].SubnetMask.Addr[0] = Private->SubnetMask.Addr[0];

-      Mode->RouteTable[0].GwAddr.Addr[0]     = 0;

-

-      //

-      // Create the default route entry if there is a default router.

-      //

-      if (Private->GatewayIp.Addr[0] != 0) {

-        Mode->RouteTableEntries                = 2;

-        Mode->RouteTable[1].IpAddr.Addr[0]     = 0;

-        Mode->RouteTable[1].SubnetMask.Addr[0] = 0;

-        Mode->RouteTable[1].GwAddr.Addr[0]     = Private->GatewayIp.Addr[0];

-      }

-

-      //

-      // Flush new station IP address into Udp4CfgData and Ip4ConfigData

-      //

-      CopyMem (&Private->Udp4CfgData.StationAddress, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));

-      CopyMem (&Private->Udp4CfgData.SubnetMask, &Private->SubnetMask, sizeof (EFI_IPv4_ADDRESS));

-      CopyMem (&Private->Ip4ConfigData.StationAddress, &Private->StationIp, sizeof (EFI_IPv4_ADDRESS));

-      CopyMem (&Private->Ip4ConfigData.SubnetMask, &Private->SubnetMask, sizeof (EFI_IPv4_ADDRESS));

-

-      //

-      // Reconfigure the Ip4 instance to capture background ICMP packets with new station Ip address.

-      //

-      Private->Ip4->Cancel (Private->Ip4, &Private->IcmpErrorRcvToken);

-      Private->Ip4->Configure (Private->Ip4, NULL);

-

-      Status = Private->Ip4->Configure (Private->Ip4, &Private->Ip4ConfigData);

-      if (EFI_ERROR (Status)) {

-        goto ON_EXIT;

-      }

-

-      Status = Private->Ip4->Receive (Private->Ip4, &Private->IcmpErrorRcvToken);

-      if (EFI_ERROR (Status)) {

-        goto ON_EXIT;

-      }

-    }

-  }

-

-  Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);

-

-  //

-  // Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP

-  // receive filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.

-  //

-  ZeroMem(&IpFilter, sizeof (EFI_PXE_BASE_CODE_IP_FILTER));

-  IpFilter.Filters = EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP;

-  This->SetIpFilter (This, &IpFilter);

-

-  return Status;

-}

-

-

-/**

-  Attempts to complete the PXE Boot Server and/or boot image discovery sequence.

-

-  This function attempts to complete the PXE Boot Server and/or boot image discovery

-  sequence. If this sequence is completed, then EFI_SUCCESS is returned, and the

-  PxeDiscoverValid, PxeDiscover, PxeReplyReceived, and PxeReply fields of the

-  EFI_PXE_BASE_CODE_MODE structure are filled in. If UseBis is TRUE, then the

-  PxeBisReplyReceived and PxeBisReply fields of the EFI_PXE_BASE_CODE_MODE structure

-  will also be filled in. If UseBis is FALSE, then PxeBisReplyValid will be set to FALSE.

-  In the structure referenced by parameter Info, the PXE Boot Server list, SrvList[],

-  has two uses: It is the Boot Server IP address list used for unicast discovery

-  (if the UseUCast field is TRUE), and it is the list used for Boot Server verification

-  (if the MustUseList field is TRUE). Also, if the MustUseList field in that structure

-  is TRUE and the AcceptAnyResponse field in the SrvList[] array is TRUE, any Boot

-  Server reply of that type will be accepted. If the AcceptAnyResponse field is

-  FALSE, only responses from Boot Servers with matching IP addresses will be accepted.

-  This function can take at least 10 seconds to timeout and return control to the

-  caller. If the Discovery sequence does not complete, then EFI_TIMEOUT will be

-  returned. Please see the Preboot Execution Environment (PXE) Specification for

-  additional details on the implementation of the Discovery sequence.

-  If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,

-  then the Discovery sequence is stopped and EFI_ABORTED will be returned.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  Type                  The type of bootstrap to perform.

-  @param  Layer                 Pointer to the boot server layer number to discover, which must be

-                                PXE_BOOT_LAYER_INITIAL when a new server type is being

-                                discovered.

-  @param  UseBis                TRUE if Boot Integrity Services are to be used. FALSE otherwise.

-  @param  Info                  Pointer to a data structure that contains additional information on the

-                                type of discovery operation that is to be performed.

-

-  @retval EFI_SUCCESS           The Discovery sequence has been completed.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-  @retval EFI_DEVICE_ERROR      The network device encountered an error during this operation.

-  @retval EFI_OUT_OF_RESOURCES  Could not allocate enough memory to complete Discovery.

-  @retval EFI_ABORTED           The callback function aborted the Discovery sequence.

-  @retval EFI_TIMEOUT           The Discovery sequence timed out.

-  @retval EFI_ICMP_ERROR        An ICMP error packet was received during the PXE discovery

-                                session.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcDiscover (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       *This,

-  IN UINT16                           Type,

-  IN UINT16                           *Layer,

-  IN BOOLEAN                          UseBis,

-  IN EFI_PXE_BASE_CODE_DISCOVER_INFO  *Info   OPTIONAL

-  )

-{

-  PXEBC_PRIVATE_DATA              *Private;

-  EFI_PXE_BASE_CODE_MODE          *Mode;

-  EFI_PXE_BASE_CODE_DISCOVER_INFO DefaultInfo;

-  EFI_PXE_BASE_CODE_DISCOVER_INFO *CreatedInfo;

-  EFI_PXE_BASE_CODE_SRVLIST       *SrvList;

-  EFI_PXE_BASE_CODE_SRVLIST       DefaultSrvList;

-  PXEBC_CACHED_DHCP4_PACKET       *Packet;

-  PXEBC_VENDOR_OPTION             *VendorOpt;

-  UINT16                          Index;

-  EFI_STATUS                      Status;

-  PXEBC_BOOT_SVR_ENTRY            *BootSvrEntry;

-  EFI_PXE_BASE_CODE_IP_FILTER     IpFilter;

-

-  if (This == NULL) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private           = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode              = Private->PxeBc.Mode;

-  BootSvrEntry      = NULL;

-  SrvList           = NULL;

-  CreatedInfo       = NULL;

-  Status            = EFI_DEVICE_ERROR;

-  Private->Function = EFI_PXE_BASE_CODE_FUNCTION_DISCOVER;

-

-  if (!Private->AddressIsOk) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if (!Mode->Started) {

-    return EFI_NOT_STARTED;

-  }

-

-  //

-  // Stop Udp4Read instance

-  //

-  Private->Udp4Read->Configure (Private->Udp4Read, NULL);

-

-  Mode->IcmpErrorReceived = FALSE;

-

-  //

-  // If layer isn't EFI_PXE_BASE_CODE_BOOT_LAYER_INITIAL,

-  //   use the previous setting;

-  // If info isn't offered,

-  //   use the cached DhcpAck and ProxyOffer packets.

-  //

-  ZeroMem (&DefaultInfo, sizeof (EFI_PXE_BASE_CODE_DISCOVER_INFO));

-  if (*Layer != EFI_PXE_BASE_CODE_BOOT_LAYER_INITIAL) {

-

-    if (!Mode->PxeDiscoverValid || !Mode->PxeReplyReceived || (!Mode->PxeBisReplyReceived && UseBis)) {

-

-      Status = EFI_INVALID_PARAMETER;

-      goto ON_EXIT;

-    }

-

-    DefaultInfo.IpCnt                 = 1;

-    DefaultInfo.UseUCast              = TRUE;

-

-    DefaultSrvList.Type               = Type;

-    DefaultSrvList.AcceptAnyResponse  = FALSE;

-    DefaultSrvList.IpAddr.Addr[0]     = Private->ServerIp.Addr[0];

-

-    SrvList = &DefaultSrvList;

-    Info = &DefaultInfo;

-  } else if (Info == NULL) {

-    //

-    // Create info by the cached packet before

-    //

-    Packet    = (Mode->ProxyOfferReceived) ? &Private->ProxyOffer : &Private->Dhcp4Ack;

-    VendorOpt = &Packet->PxeVendorOption;

-

-    if (!Mode->DhcpAckReceived || !IS_VALID_DISCOVER_VENDOR_OPTION (VendorOpt->BitMap)) {

-      //

-      // Address is not acquired or no discovery options.

-      //

-      Status = EFI_INVALID_PARAMETER;

-      goto ON_EXIT;

-    }

-

-    DefaultInfo.UseMCast    = (BOOLEAN)!IS_DISABLE_MCAST_DISCOVER (VendorOpt->DiscoverCtrl);

-    DefaultInfo.UseBCast    = (BOOLEAN)!IS_DISABLE_BCAST_DISCOVER (VendorOpt->DiscoverCtrl);

-    DefaultInfo.MustUseList = (BOOLEAN) IS_ENABLE_USE_SERVER_LIST (VendorOpt->DiscoverCtrl);

-    DefaultInfo.UseUCast    = DefaultInfo.MustUseList;

-

-    if (DefaultInfo.UseMCast) {

-      //

-      // Get the multicast discover ip address from vendor option.

-      //

-      CopyMem (

-        &DefaultInfo.ServerMCastIp.Addr,

-        &VendorOpt->DiscoverMcastIp,

-        sizeof (EFI_IPv4_ADDRESS)

-        );

-    }

-

-    DefaultInfo.IpCnt = 0;

-    Info    = &DefaultInfo;

-    SrvList = Info->SrvList;

-

-    if (DefaultInfo.MustUseList) {

-      BootSvrEntry  = VendorOpt->BootSvr;

-      Status        = EFI_INVALID_PARAMETER;

-

-      while (((UINT8) (BootSvrEntry - VendorOpt->BootSvr)) < VendorOpt->BootSvrLen) {

-

-        if (BootSvrEntry->Type == HTONS (Type)) {

-          Status = EFI_SUCCESS;

-          break;

-        }

-

-        BootSvrEntry = GET_NEXT_BOOT_SVR_ENTRY (BootSvrEntry);

-      }

-

-      if (EFI_ERROR (Status)) {

-        goto ON_EXIT;

-      }

-

-      DefaultInfo.IpCnt = BootSvrEntry->IpCnt;

-

-      if (DefaultInfo.IpCnt >= 1) {

-        CreatedInfo = AllocatePool (sizeof (DefaultInfo) + (DefaultInfo.IpCnt - 1) * sizeof (*SrvList));

-        if (CreatedInfo == NULL) {

-          Status = EFI_OUT_OF_RESOURCES;

-          goto ON_EXIT;

-

-        }

-

-        CopyMem (CreatedInfo, &DefaultInfo, sizeof (DefaultInfo));

-        Info    = CreatedInfo;

-        SrvList = Info->SrvList;

-      }

-

-      for (Index = 0; Index < DefaultInfo.IpCnt; Index++) {

-        CopyMem (&SrvList[Index].IpAddr, &BootSvrEntry->IpAddr[Index], sizeof (EFI_IPv4_ADDRESS));

-        SrvList[Index].AcceptAnyResponse   = FALSE;

-        SrvList[Index].Type                = BootSvrEntry->Type;

-      }

-    }

-

-  } else {

-

-    SrvList = Info->SrvList;

-

-    if (!SrvList[0].AcceptAnyResponse) {

-

-      for (Index = 1; Index < Info->IpCnt; Index++) {

-        if (SrvList[Index].AcceptAnyResponse) {

-          break;

-        }

-      }

-

-      if (Index != Info->IpCnt) {

-        Status = EFI_INVALID_PARAMETER;

-        goto ON_EXIT;

-      }

-    }

-  }

-

-  if ((!Info->UseUCast && !Info->UseBCast && !Info->UseMCast) || (Info->MustUseList && Info->IpCnt == 0)) {

-

-    Status = EFI_INVALID_PARAMETER;

-    goto ON_EXIT;

-  }

-  //

-  // Execute discover by UniCast/BroadCast/MultiCast

-  //

-  if (Info->UseUCast) {

-

-    for (Index = 0; Index < Info->IpCnt; Index++) {

-

-      if (BootSvrEntry == NULL) {

-        Private->ServerIp.Addr[0] = SrvList[Index].IpAddr.Addr[0];

-      } else {

-        CopyMem (

-          &Private->ServerIp,

-          &BootSvrEntry->IpAddr[Index],

-          sizeof (EFI_IPv4_ADDRESS)

-          );

-      }

-

-      Status = PxeBcDiscvBootService (

-                Private,

-                Type,

-                Layer,

-                UseBis,

-                &SrvList[Index].IpAddr,

-                0,

-                NULL,

-                TRUE,

-                &Private->PxeReply.Packet.Ack

-                );

-      if (!EFI_ERROR (Status)) {

-        break;

-      }

-    }

-

-  } else if (Info->UseMCast) {

-

-    Status = PxeBcDiscvBootService (

-              Private,

-              Type,

-              Layer,

-              UseBis,

-              &Info->ServerMCastIp,

-              0,

-              NULL,

-              TRUE,

-              &Private->PxeReply.Packet.Ack

-              );

-

-  } else if (Info->UseBCast) {

-

-    Status = PxeBcDiscvBootService (

-              Private,

-              Type,

-              Layer,

-              UseBis,

-              NULL,

-              Info->IpCnt,

-              SrvList,

-              TRUE,

-              &Private->PxeReply.Packet.Ack

-              );

-  }

-

-  if (EFI_ERROR (Status) || !Mode->PxeReplyReceived || (!Mode->PxeBisReplyReceived && UseBis)) {

-    if (Status == EFI_ICMP_ERROR) {

-      Mode->IcmpErrorReceived = TRUE;

-    } else {

-      Status = EFI_DEVICE_ERROR;

-    }

-    goto ON_EXIT;

-  } else {

-    PxeBcParseCachedDhcpPacket (&Private->PxeReply);

-  }

-

-  if (Mode->PxeBisReplyReceived) {

-    CopyMem (

-      &Private->ServerIp,

-      &Mode->PxeReply.Dhcpv4.BootpSiAddr,

-      sizeof (EFI_IPv4_ADDRESS)

-      );

-  }

-

-  if (CreatedInfo != NULL) {

-    FreePool (CreatedInfo);

-  }

-

-ON_EXIT:

-

-  Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);

-

-  //

-  // Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP

-  // receive filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.

-  //

-  ZeroMem(&IpFilter, sizeof (EFI_PXE_BASE_CODE_IP_FILTER));

-  IpFilter.Filters = EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP;

-  This->SetIpFilter (This, &IpFilter);

-

-  return Status;

-}

-

-

-/**

-  Used to perform TFTP and MTFTP services.

-

-  This function is used to perform TFTP and MTFTP services. This includes the

-  TFTP operations to get the size of a file, read a directory, read a file, and

-  write a file. It also includes the MTFTP operations to get the size of a file,

-  read a directory, and read a file. The type of operation is specified by Operation.

-  If the callback function that is invoked during the TFTP/MTFTP operation does

-  not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will

-  be returned.

-  For read operations, the return data will be placed in the buffer specified by

-  BufferPtr. If BufferSize is too small to contain the entire downloaded file,

-  then EFI_BUFFER_TOO_SMALL will be returned and BufferSize will be set to zero

-  or the size of the requested file (the size of the requested file is only returned

-  if the TFTP server supports TFTP options). If BufferSize is large enough for the

-  read operation, then BufferSize will be set to the size of the downloaded file,

-  and EFI_SUCCESS will be returned. Applications using the PxeBc.Mtftp() services

-  should use the get-file-size operations to determine the size of the downloaded

-  file prior to using the read-file operations-especially when downloading large

-  (greater than 64 MB) files-instead of making two calls to the read-file operation.

-  Following this recommendation will save time if the file is larger than expected

-  and the TFTP server does not support TFTP option extensions. Without TFTP option

-  extension support, the client has to download the entire file, counting and discarding

-  the received packets, to determine the file size.

-  For write operations, the data to be sent is in the buffer specified by BufferPtr.

-  BufferSize specifies the number of bytes to send. If the write operation completes

-  successfully, then EFI_SUCCESS will be returned.

-  For TFTP "get file size" operations, the size of the requested file or directory

-  is returned in BufferSize, and EFI_SUCCESS will be returned. If the TFTP server

-  does not support options, the file will be downloaded into a bit bucket and the

-  length of the downloaded file will be returned. For MTFTP "get file size" operations,

-  if the MTFTP server does not support the "get file size" option, EFI_UNSUPPORTED

-  will be returned.

-  This function can take up to 10 seconds to timeout and return control to the caller.

-  If the TFTP sequence does not complete, EFI_TIMEOUT will be returned.

-  If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,

-  then the TFTP sequence is stopped and EFI_ABORTED will be returned.

-  The format of the data returned from a TFTP read directory operation is a null-terminated

-  filename followed by a null-terminated information string, of the form

-  "size year-month-day hour:minute:second" (i.e. %d %d-%d-%d %d:%d:%f - note that

-  the seconds field can be a decimal number), where the date and time are UTC. For

-  an MTFTP read directory command, there is additionally a null-terminated multicast

-  IP address preceding the filename of the form %d.%d.%d.%d for IP v4. The final

-  entry is itself null-terminated, so that the final information string is terminated

-  with two null octets.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  Operation             The type of operation to perform.

-  @param  BufferPtr             A pointer to the data buffer.

-  @param  Overwrite             Only used on write file operations. TRUE if a file on a remote server can

-                                be overwritten.

-  @param  BufferSize            For get-file-size operations, *BufferSize returns the size of the

-                                requested file.

-  @param  BlockSize             The requested block size to be used during a TFTP transfer.

-  @param  ServerIp              The TFTP / MTFTP server IP address.

-  @param  Filename              A Null-terminated ASCII string that specifies a directory name or a file

-                                name.

-  @param  Info                  Pointer to the MTFTP information.

-  @param  DontUseBuffer         Set to FALSE for normal TFTP and MTFTP read file operation.

-

-  @retval EFI_SUCCESS           The TFTP/MTFTP operation was completed.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-  @retval EFI_DEVICE_ERROR      The network device encountered an error during this operation.

-  @retval EFI_BUFFER_TOO_SMALL  The buffer is not large enough to complete the read operation.

-  @retval EFI_ABORTED           The callback function aborted the TFTP/MTFTP operation.

-  @retval EFI_TIMEOUT           The TFTP/MTFTP operation timed out.

-  @retval EFI_ICMP_ERROR        An ICMP error packet was received during the MTFTP session.

-  @retval EFI_TFTP_ERROR        A TFTP error packet was received during the MTFTP session.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcMtftp (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       *This,

-  IN EFI_PXE_BASE_CODE_TFTP_OPCODE    Operation,

-  IN OUT VOID                         *BufferPtr,

-  IN BOOLEAN                          Overwrite,

-  IN OUT UINT64                       *BufferSize,

-  IN UINTN                            *BlockSize    OPTIONAL,

-  IN EFI_IP_ADDRESS                   *ServerIp,

-  IN UINT8                            *Filename,

-  IN EFI_PXE_BASE_CODE_MTFTP_INFO     *Info         OPTIONAL,

-  IN BOOLEAN                          DontUseBuffer

-  )

-{

-  PXEBC_PRIVATE_DATA           *Private;

-  EFI_MTFTP4_CONFIG_DATA       Mtftp4Config;

-  EFI_STATUS                   Status;

-  EFI_PXE_BASE_CODE_MODE       *Mode;

-  EFI_MAC_ADDRESS              TempMacAddr;

-  EFI_PXE_BASE_CODE_IP_FILTER  IpFilter;

-

-  if ((This == NULL)                                                          ||

-      (Filename == NULL)                                                      ||

-      (BufferSize == NULL)                                                    ||

-      ((ServerIp == NULL) ||

-       (IP4_IS_UNSPECIFIED (NTOHL (ServerIp->Addr[0])) ||

-        IP4_IS_LOCAL_BROADCAST (NTOHL (ServerIp->Addr[0]))))                  ||

-      ((BufferPtr == NULL) && DontUseBuffer)                                  ||

-      ((BlockSize != NULL) && (*BlockSize < 512))) {

-

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Status  = EFI_DEVICE_ERROR;

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = &Private->Mode;

-

-  if (!Mode->AutoArp) {

-    //

-    // If AutoArp is set false, check arp cache

-    //

-    UpdateArpCache (This);

-    if (!FindInArpCache (Mode, &ServerIp->v4, &TempMacAddr)) {

-      return EFI_DEVICE_ERROR;

-    }

-  }

-

-  //

-  // Stop Udp4Read instance

-  //

-  Private->Udp4Read->Configure (Private->Udp4Read, NULL);

-

-  Mode->TftpErrorReceived = FALSE;

-  Mode->IcmpErrorReceived = FALSE;

-

-  Mtftp4Config.UseDefaultSetting = FALSE;

-  Mtftp4Config.TimeoutValue      = PXEBC_MTFTP_TIMEOUT;

-  Mtftp4Config.TryCount          = PXEBC_MTFTP_RETRIES;

-

-  CopyMem (

-    &Mtftp4Config.StationIp,

-    &Private->StationIp,

-    sizeof (EFI_IPv4_ADDRESS)

-    );

-  CopyMem (

-    &Mtftp4Config.SubnetMask,

-    &Private->SubnetMask,

-    sizeof (EFI_IPv4_ADDRESS)

-    );

-  CopyMem (

-    &Mtftp4Config.GatewayIp,

-    &Private->GatewayIp,

-    sizeof (EFI_IPv4_ADDRESS)

-    );

-  CopyMem (

-    &Mtftp4Config.ServerIp,

-    ServerIp,

-    sizeof (EFI_IPv4_ADDRESS)

-    );

-

-  switch (Operation) {

-

-  case EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE:

-

-    Status = PxeBcTftpGetFileSize (

-              Private,

-              &Mtftp4Config,

-              Filename,

-              BlockSize,

-              BufferSize

-              );

-

-    break;

-

-  case EFI_PXE_BASE_CODE_TFTP_READ_FILE:

-

-    Status = PxeBcTftpReadFile (

-              Private,

-              &Mtftp4Config,

-              Filename,

-              BlockSize,

-              BufferPtr,

-              BufferSize,

-              DontUseBuffer

-              );

-

-    break;

-

-  case EFI_PXE_BASE_CODE_TFTP_WRITE_FILE:

-

-    Status = PxeBcTftpWriteFile (

-              Private,

-              &Mtftp4Config,

-              Filename,

-              Overwrite,

-              BlockSize,

-              BufferPtr,

-              BufferSize

-              );

-

-    break;

-

-  case EFI_PXE_BASE_CODE_TFTP_READ_DIRECTORY:

-

-    Status = PxeBcTftpReadDirectory (

-              Private,

-              &Mtftp4Config,

-              Filename,

-              BlockSize,

-              BufferPtr,

-              BufferSize,

-              DontUseBuffer

-              );

-

-    break;

-

-  case EFI_PXE_BASE_CODE_MTFTP_GET_FILE_SIZE:

-  case EFI_PXE_BASE_CODE_MTFTP_READ_FILE:

-  case EFI_PXE_BASE_CODE_MTFTP_READ_DIRECTORY:

-    Status = EFI_UNSUPPORTED;

-    break;

-

-  default:

-

-    Status = EFI_INVALID_PARAMETER;

-    break;

-  }

-

-  if (Status == EFI_ICMP_ERROR) {

-    Mode->IcmpErrorReceived = TRUE;

-  }

-

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-ON_EXIT:

-  Private->Udp4Read->Configure (Private->Udp4Read, &Private->Udp4CfgData);

-  //

-  // Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP

-  // receive filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.

-  //

-  ZeroMem(&IpFilter, sizeof (EFI_PXE_BASE_CODE_IP_FILTER));

-  IpFilter.Filters = EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP;

-  This->SetIpFilter (This, &IpFilter);

-

-  return Status;

-}

-

-

-/**

-  Writes a UDP packet to the network interface.

-

-  This function writes a UDP packet specified by the (optional HeaderPtr and)

-  BufferPtr parameters to the network interface. The UDP header is automatically

-  built by this routine. It uses the parameters OpFlags, DestIp, DestPort, GatewayIp,

-  SrcIp, and SrcPort to build this header. If the packet is successfully built and

-  transmitted through the network interface, then EFI_SUCCESS will be returned.

-  If a timeout occurs during the transmission of the packet, then EFI_TIMEOUT will

-  be returned. If an ICMP error occurs during the transmission of the packet, then

-  the IcmpErrorReceived field is set to TRUE, the IcmpError field is filled in and

-  EFI_ICMP_ERROR will be returned. If the Callback Protocol does not return

-  EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE, then EFI_ABORTED will be returned.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  OpFlags               The UDP operation flags.

-  @param  DestIp                The destination IP address.

-  @param  DestPort              The destination UDP port number.

-  @param  GatewayIp             The gateway IP address.

-  @param  SrcIp                 The source IP address.

-  @param  SrcPort               The source UDP port number.

-  @param  HeaderSize            An optional field which may be set to the length of a header at

-                                HeaderPtr to be prefixed to the data at BufferPtr.

-  @param  HeaderPtr             If HeaderSize is not NULL, a pointer to a header to be prefixed to the

-                                data at BufferPtr.

-  @param  BufferSize            A pointer to the size of the data at BufferPtr.

-  @param  BufferPtr             A pointer to the data to be written.

-

-  @retval EFI_SUCCESS           The UDP Write operation was completed.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-  @retval EFI_BAD_BUFFER_SIZE   The buffer is too long to be transmitted.

-  @retval EFI_ABORTED           The callback function aborted the UDP Write operation.

-  @retval EFI_TIMEOUT           The UDP Write operation timed out.

-  @retval EFI_ICMP_ERROR        An ICMP error packet was received during the UDP write session.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcUdpWrite (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       *This,

-  IN UINT16                           OpFlags,

-  IN EFI_IP_ADDRESS                   *DestIp,

-  IN EFI_PXE_BASE_CODE_UDP_PORT       *DestPort,

-  IN EFI_IP_ADDRESS                   *GatewayIp  OPTIONAL,

-  IN EFI_IP_ADDRESS                   *SrcIp      OPTIONAL,

-  IN OUT EFI_PXE_BASE_CODE_UDP_PORT   *SrcPort    OPTIONAL,

-  IN UINTN                            *HeaderSize OPTIONAL,

-  IN VOID                             *HeaderPtr  OPTIONAL,

-  IN UINTN                            *BufferSize,

-  IN VOID                             *BufferPtr

-  )

-{

-  PXEBC_PRIVATE_DATA        *Private;

-  EFI_UDP4_PROTOCOL         *Udp4;

-  EFI_UDP4_COMPLETION_TOKEN Token;

-  EFI_UDP4_TRANSMIT_DATA    *Udp4TxData;

-  UINT32                    FragCount;

-  UINT32                    DataLength;

-  EFI_UDP4_SESSION_DATA     Udp4Session;

-  EFI_STATUS                Status;

-  BOOLEAN                   IsDone;

-  EFI_PXE_BASE_CODE_MODE    *Mode;

-  EFI_MAC_ADDRESS           TempMacAddr;

-

-  IsDone = FALSE;

-

-  if ((This == NULL) || (DestIp == NULL) || (DestPort == NULL)) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if ((GatewayIp != NULL) && (IP4_IS_UNSPECIFIED (NTOHL (GatewayIp->Addr[0])) || IP4_IS_LOCAL_BROADCAST (NTOHL (GatewayIp->Addr[0])))) {

-    //

-    // Gateway is provided but it's not a unicast IP address.

-    //

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if ((HeaderSize != NULL) && ((*HeaderSize == 0) || (HeaderPtr == NULL))) {

-    //

-    // The HeaderSize ptr isn't NULL and: 1. the value is zero; or 2. the HeaderPtr

-    // is NULL.

-    //

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if ((BufferSize == NULL) || ((*BufferSize != 0) && (BufferPtr == NULL))) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Udp4    = Private->Udp4Write;

-  Mode    = &Private->Mode;

-  if (!Mode->Started) {

-    return EFI_NOT_STARTED;

-  }

-

-  if (!Private->AddressIsOk && (SrcIp == NULL)) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if (!Mode->AutoArp) {

-    //

-    // If AutoArp is set false, check arp cache

-    //

-    UpdateArpCache (This);

-    if (!FindInArpCache (Mode, &DestIp->v4, &TempMacAddr)) {

-      return EFI_DEVICE_ERROR;

-    }

-  }

-

-  Mode->IcmpErrorReceived = FALSE;

-

-  if ((Private->CurrentUdpSrcPort == 0) ||

-      ((SrcPort != NULL) && (*SrcPort != Private->CurrentUdpSrcPort))) {

-    //

-    // Port is changed, (re)configure the Udp4Write instance

-    //

-    if (SrcPort != NULL) {

-      Private->CurrentUdpSrcPort = *SrcPort;

-    }

-  }

-

-  Status = PxeBcConfigureUdpWriteInstance (

-             Udp4,

-             &Private->StationIp.v4,

-             &Private->SubnetMask.v4,

-             &Private->GatewayIp.v4,

-             &Private->CurrentUdpSrcPort,

-             Private->Mode.TTL,

-             Private->Mode.ToS

-             );

-  if (EFI_ERROR (Status)) {

-    Private->CurrentUdpSrcPort = 0;

-    return EFI_INVALID_PARAMETER;

-  }

-

-  ZeroMem (&Token, sizeof (EFI_UDP4_COMPLETION_TOKEN));

-  ZeroMem (&Udp4Session, sizeof (EFI_UDP4_SESSION_DATA));

-

-  CopyMem (&Udp4Session.DestinationAddress, DestIp, sizeof (EFI_IPv4_ADDRESS));

-  Udp4Session.DestinationPort = *DestPort;

-  if (SrcIp != NULL) {

-    CopyMem (&Udp4Session.SourceAddress, SrcIp, sizeof (EFI_IPv4_ADDRESS));

-  }

-  if (SrcPort != NULL) {

-    Udp4Session.SourcePort = *SrcPort;

-  }

-

-  FragCount = (HeaderSize != NULL) ? 2 : 1;

-  Udp4TxData = (EFI_UDP4_TRANSMIT_DATA *) AllocateZeroPool (sizeof (EFI_UDP4_TRANSMIT_DATA) + (FragCount - 1) * sizeof (EFI_UDP4_FRAGMENT_DATA));

-  if (Udp4TxData == NULL) {

-    return EFI_OUT_OF_RESOURCES;

-  }

-

-  Udp4TxData->FragmentCount = FragCount;

-  Udp4TxData->FragmentTable[FragCount - 1].FragmentLength = (UINT32) *BufferSize;

-  Udp4TxData->FragmentTable[FragCount - 1].FragmentBuffer = BufferPtr;

-  DataLength = (UINT32) *BufferSize;

-

-  if (FragCount == 2) {

-

-    Udp4TxData->FragmentTable[0].FragmentLength = (UINT32) *HeaderSize;

-    Udp4TxData->FragmentTable[0].FragmentBuffer = HeaderPtr;

-    DataLength += (UINT32) *HeaderSize;

-  }

-

-  if (GatewayIp != NULL) {

-    Udp4TxData->GatewayAddress  = (EFI_IPv4_ADDRESS *) GatewayIp;

-  }

-  Udp4TxData->UdpSessionData  = &Udp4Session;

-  Udp4TxData->DataLength      = DataLength;

-  Token.Packet.TxData         = Udp4TxData;

-

-  Status = gBS->CreateEvent (

-                  EVT_NOTIFY_SIGNAL,

-                  TPL_NOTIFY,

-                  PxeBcCommonNotify,

-                  &IsDone,

-                  &Token.Event

-                  );

-  if (EFI_ERROR (Status)) {

-    goto ON_EXIT;

-  }

-

-  Status = Udp4->Transmit (Udp4, &Token);

-  if (EFI_ERROR (Status)) {

-    if (Status == EFI_ICMP_ERROR) {

-      Mode->IcmpErrorReceived = TRUE;

-    }

-    goto ON_EXIT;

-  }

-

-  while (!IsDone) {

-

-    Udp4->Poll (Udp4);

-  }

-

-  Status = Token.Status;

-

-ON_EXIT:

-

-  if (Token.Event != NULL) {

-    gBS->CloseEvent (Token.Event);

-  }

-

-  FreePool (Udp4TxData);

-

-  //

-  // Reset the instance.

-  //

-  Udp4->Configure (Udp4, NULL);

-  return Status;

-}

-

-/**

-  Decide whether the incoming UDP packet is acceptable per IP filter settings

-  in provided PxeBcMode.

-

-  @param  PxeBcMode          Pointer to EFI_PXE_BASE_CODE_MODE.

-  @param  Session            Received UDP session.

-

-  @retval TRUE               The UDP package matches IP filters.

-  @retval FALSE              The UDP package doesn't matches IP filters.

-

-**/

-BOOLEAN

-CheckIpByFilter (

-  IN EFI_PXE_BASE_CODE_MODE    *PxeBcMode,

-  IN EFI_UDP4_SESSION_DATA     *Session

-  )

-{

-  UINTN                   Index;

-  EFI_IPv4_ADDRESS        Ip4Address;

-  EFI_IPv4_ADDRESS        DestIp4Address;

-

-  if ((PxeBcMode->IpFilter.Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS) != 0) {

-    return TRUE;

-  }

-

-  CopyMem (&DestIp4Address, &Session->DestinationAddress, sizeof (DestIp4Address));

-  if (((PxeBcMode->IpFilter.Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS_MULTICAST) != 0) &&

-      IP4_IS_MULTICAST (EFI_NTOHL (DestIp4Address))

-      ) {

-    return TRUE;

-  }

-

-  if (((PxeBcMode->IpFilter.Filters & EFI_PXE_BASE_CODE_IP_FILTER_BROADCAST) != 0) &&

-      IP4_IS_LOCAL_BROADCAST (EFI_NTOHL (DestIp4Address))

-      ) {

-    return TRUE;

-  }

-

-  CopyMem (&Ip4Address, &PxeBcMode->StationIp.v4, sizeof (Ip4Address));

-  if (((PxeBcMode->IpFilter.Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) != 0) &&

-      EFI_IP4_EQUAL (&Ip4Address, &DestIp4Address)

-      ) {

-    return TRUE;

-  }

-

-  ASSERT (PxeBcMode->IpFilter.IpCnt < EFI_PXE_BASE_CODE_MAX_IPCNT);

-

-  for (Index = 0; Index < PxeBcMode->IpFilter.IpCnt; Index++) {

-    CopyMem (

-      &Ip4Address,

-      &PxeBcMode->IpFilter.IpList[Index].v4,

-      sizeof (Ip4Address)

-      );

-    if (EFI_IP4_EQUAL (&Ip4Address, &DestIp4Address)) {

-      return TRUE;

-    }

-  }

-

-  return FALSE;

-}

-

-/**

-  Reads a UDP packet from the network interface.

-

-  This function reads a UDP packet from a network interface. The data contents

-  are returned in (the optional HeaderPtr and) BufferPtr, and the size of the

-  buffer received is returned in BufferSize . If the input BufferSize is smaller

-  than the UDP packet received (less optional HeaderSize), it will be set to the

-  required size, and EFI_BUFFER_TOO_SMALL will be returned. In this case, the

-  contents of BufferPtr are undefined, and the packet is lost. If a UDP packet is

-  successfully received, then EFI_SUCCESS will be returned, and the information

-  from the UDP header will be returned in DestIp, DestPort, SrcIp, and SrcPort if

-  they are not NULL. Depending on the values of OpFlags and the DestIp, DestPort,

-  SrcIp, and SrcPort input values, different types of UDP packet receive filtering

-  will be performed. The following tables summarize these receive filter operations.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  OpFlags               The UDP operation flags.

-  @param  DestIp                The destination IP address.

-  @param  DestPort              The destination UDP port number.

-  @param  SrcIp                 The source IP address.

-  @param  SrcPort               The source UDP port number.

-  @param  HeaderSize            An optional field which may be set to the length of a header at

-                                HeaderPtr to be prefixed to the data at BufferPtr.

-  @param  HeaderPtr             If HeaderSize is not NULL, a pointer to a header to be prefixed to the

-                                data at BufferPtr.

-  @param  BufferSize            A pointer to the size of the data at BufferPtr.

-  @param  BufferPtr             A pointer to the data to be read.

-

-  @retval EFI_SUCCESS           The UDP Read operation was completed.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-  @retval EFI_DEVICE_ERROR      The network device encountered an error during this operation.

-  @retval EFI_BUFFER_TOO_SMALL  The packet is larger than Buffer can hold.

-  @retval EFI_ABORTED           The callback function aborted the UDP Read operation.

-  @retval EFI_TIMEOUT           The UDP Read operation timed out.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcUdpRead (

-  IN EFI_PXE_BASE_CODE_PROTOCOL                *This,

-  IN UINT16                                    OpFlags,

-  IN OUT EFI_IP_ADDRESS                        *DestIp     OPTIONAL,

-  IN OUT EFI_PXE_BASE_CODE_UDP_PORT            *DestPort   OPTIONAL,

-  IN OUT EFI_IP_ADDRESS                        *SrcIp      OPTIONAL,

-  IN OUT EFI_PXE_BASE_CODE_UDP_PORT            *SrcPort    OPTIONAL,

-  IN UINTN                                     *HeaderSize OPTIONAL,

-  IN VOID                                      *HeaderPtr  OPTIONAL,

-  IN OUT UINTN                                 *BufferSize,

-  IN VOID                                      *BufferPtr

-  )

-{

-  PXEBC_PRIVATE_DATA        *Private;

-  EFI_PXE_BASE_CODE_MODE    *Mode;

-  EFI_UDP4_PROTOCOL         *Udp4;

-  EFI_UDP4_COMPLETION_TOKEN Token;

-  EFI_UDP4_RECEIVE_DATA     *RxData;

-  EFI_UDP4_SESSION_DATA     *Session;

-  EFI_STATUS                Status;

-  BOOLEAN                   IsDone;

-  BOOLEAN                   Matched;

-  UINTN                     CopiedLen;

-  UINTN                     HeaderLen;

-  UINTN                     HeaderCopiedLen;

-  UINTN                     BufferCopiedLen;

-  UINT32                    FragmentLength;

-  UINTN                     FragmentIndex;

-  UINT8                     *FragmentBuffer;

-

-  if (This == NULL || DestIp == NULL || DestPort == NULL) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if (((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT) == 0 && (DestPort == NULL)) ||

-      ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT) == 0 && (SrcIp == NULL)) ||

-      ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_PORT) == 0 && (SrcPort == NULL))) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if (((HeaderSize != NULL) && (*HeaderSize == 0)) || ((HeaderSize != NULL) && (HeaderPtr == NULL))) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if ((BufferSize == NULL) || (BufferPtr == NULL)) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = Private->PxeBc.Mode;

-  Udp4    = Private->Udp4Read;

-

-  if (!Mode->Started) {

-    return EFI_NOT_STARTED;

-  }

-

-  Mode->IcmpErrorReceived = FALSE;

-

-  Status = gBS->CreateEvent (

-                  EVT_NOTIFY_SIGNAL,

-                  TPL_NOTIFY,

-                  PxeBcCommonNotify,

-                  &IsDone,

-                  &Token.Event

-                  );

-  if (EFI_ERROR (Status)) {

-    return EFI_OUT_OF_RESOURCES;

-  }

-

-TRY_AGAIN:

-

-  IsDone = FALSE;

-  Status = Udp4->Receive (Udp4, &Token);

-  if (EFI_ERROR (Status)) {

-    if (Status == EFI_ICMP_ERROR) {

-      Mode->IcmpErrorReceived = TRUE;

-    }

-    goto ON_EXIT;

-  }

-

-  Udp4->Poll (Udp4);

-

-  if (!IsDone) {

-    Status = EFI_TIMEOUT;

-  } else {

-

-    //

-    // check whether this packet matches the filters

-    //

-    if (EFI_ERROR (Token.Status)){

-      goto ON_EXIT;

-    }

-

-    RxData  = Token.Packet.RxData;

-    Session = &RxData->UdpSession;

-

-    Matched = TRUE;

-

-    if ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_USE_FILTER) != 0) {

-      Matched = FALSE;

-      //

-      // Check UDP package by IP filter settings

-      //

-      if (CheckIpByFilter (Mode, Session)) {

-        Matched = TRUE;

-      }

-    }

-

-    if (Matched) {

-      Matched = FALSE;

-

-      //

-      // Match the destination ip of the received udp dgram

-      //

-      if ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_IP) != 0) {

-        Matched = TRUE;

-

-        if (DestIp != NULL) {

-          CopyMem (DestIp, &Session->DestinationAddress, sizeof (EFI_IPv4_ADDRESS));

-        }

-      } else {

-        if (DestIp != NULL) {

-          if (EFI_IP4_EQUAL (DestIp, &Session->DestinationAddress)) {

-            Matched = TRUE;

-          }

-        } else {

-          if (EFI_IP4_EQUAL (&Private->StationIp, &Session->DestinationAddress)) {

-            Matched = TRUE;

-          }

-        }

-      }

-    }

-

-    if (Matched) {

-      //

-      // Match the destination port of the received udp dgram

-      //

-      if ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_DEST_PORT) != 0) {

-

-        if (DestPort != NULL) {

-          *DestPort = Session->DestinationPort;

-        }

-      } else {

-

-        if (*DestPort != Session->DestinationPort) {

-          Matched = FALSE;

-        }

-      }

-    }

-

-    if (Matched) {

-      //

-      // Match the source ip of the received udp dgram

-      //

-      if ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_IP) != 0) {

-

-        if (SrcIp != NULL) {

-          CopyMem (SrcIp, &Session->SourceAddress, sizeof (EFI_IPv4_ADDRESS));

-        }

-      } else {

-

-        if (!EFI_IP4_EQUAL (SrcIp, &Session->SourceAddress)) {

-          Matched = FALSE;

-        }

-      }

-    }

-

-    if (Matched) {

-      //

-      // Match the source port of the received udp dgram

-      //

-      if ((OpFlags & EFI_PXE_BASE_CODE_UDP_OPFLAGS_ANY_SRC_PORT) != 0) {

-

-        if (SrcPort != NULL) {

-          *SrcPort = Session->SourcePort;

-        }

-      } else {

-

-        if (*SrcPort != Session->SourcePort) {

-          Matched = FALSE;

-        }

-      }

-    }

-

-    if (Matched) {

-      ASSERT (RxData != NULL);

-

-      HeaderLen = 0;

-      if (HeaderSize != NULL) {

-        HeaderLen = MIN (*HeaderSize, RxData->DataLength);

-      }

-

-      if (RxData->DataLength - HeaderLen > *BufferSize) {

-        Status = EFI_BUFFER_TOO_SMALL;

-      } else {

-        *HeaderSize = HeaderLen;

-        *BufferSize = RxData->DataLength - HeaderLen;

-

-        HeaderCopiedLen = 0;

-        BufferCopiedLen = 0;

-        for (FragmentIndex = 0; FragmentIndex < RxData->FragmentCount; FragmentIndex++) {

-          FragmentLength = RxData->FragmentTable[FragmentIndex].FragmentLength;

-          FragmentBuffer = RxData->FragmentTable[FragmentIndex].FragmentBuffer;

-          if (HeaderCopiedLen + FragmentLength < HeaderLen) {

-            //

-            // Copy the header part of received data.

-            //

-            CopyMem ((UINT8 *) HeaderPtr + HeaderCopiedLen, FragmentBuffer, FragmentLength);

-            HeaderCopiedLen += FragmentLength;

-          } else if (HeaderCopiedLen < HeaderLen) {

-            //

-            // Copy the header part of received data.

-            //

-            CopiedLen = HeaderLen - HeaderCopiedLen;

-            CopyMem ((UINT8 *) HeaderPtr + HeaderCopiedLen, FragmentBuffer, CopiedLen);

-            HeaderCopiedLen += CopiedLen;

-

-            //

-            // Copy the other part of received data.

-            //

-            CopyMem ((UINT8 *) BufferPtr + BufferCopiedLen, FragmentBuffer + CopiedLen, FragmentLength - CopiedLen);

-            BufferCopiedLen += (FragmentLength - CopiedLen);

-          } else {

-            //

-            // Copy the other part of received data.

-            //

-            CopyMem ((UINT8 *) BufferPtr + BufferCopiedLen, FragmentBuffer, FragmentLength);

-            BufferCopiedLen += FragmentLength;

-          }

-        }

-      }

-    } else {

-

-      Status = EFI_TIMEOUT;

-    }

-

-    //

-    // Recycle the RxData

-    //

-    gBS->SignalEvent (RxData->RecycleSignal);

-

-    if (!Matched) {

-      goto TRY_AGAIN;

-    }

-  }

-

-ON_EXIT:

-

-  Udp4->Cancel (Udp4, &Token);

-

-  gBS->CloseEvent (Token.Event);

-

-  return Status;

-}

-

-/**

-  Updates the IP receive filters of a network device and enables software filtering.

-

-  The NewFilter field is used to modify the network device's current IP receive

-  filter settings and to enable a software filter. This function updates the IpFilter

-  field of the EFI_PXE_BASE_CODE_MODE structure with the contents of NewIpFilter.

-  The software filter is used when the USE_FILTER in OpFlags is set to UdpRead().

-  The current hardware filter remains in effect no matter what the settings of OpFlags

-  are, so that the meaning of ANY_DEST_IP set in OpFlags to UdpRead() is from those

-  packets whose reception is enabled in hardware-physical NIC address (unicast),

-  broadcast address, logical address or addresses (multicast), or all (promiscuous).

-  UdpRead() does not modify the IP filter settings.

-  Dhcp(), Discover(), and Mtftp() set the IP filter, and return with the IP receive

-  filter list emptied and the filter set to EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP.

-  If an application or driver wishes to preserve the IP receive filter settings,

-  it will have to preserve the IP receive filter settings before these calls, and

-  use SetIpFilter() to restore them after the calls. If incompatible filtering is

-  requested (for example, PROMISCUOUS with anything else) or if the device does not

-  support a requested filter setting and it cannot be accommodated in software

-  (for example, PROMISCUOUS not supported), EFI_INVALID_PARAMETER will be returned.

-  The IPlist field is used to enable IPs other than the StationIP. They may be

-  multicast or unicast. If IPcnt is set as well as EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP,

-  then both the StationIP and the IPs from the IPlist will be used.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  NewFilter             Pointer to the new set of IP receive filters.

-

-  @retval EFI_SUCCESS           The IP receive filter settings were updated.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcSetIpFilter (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       *This,

-  IN EFI_PXE_BASE_CODE_IP_FILTER      *NewFilter

-  )

-{

-  EFI_STATUS                Status;

-  PXEBC_PRIVATE_DATA        *Private;

-  EFI_PXE_BASE_CODE_MODE    *Mode;

-  UINTN                     Index;

-  EFI_UDP4_CONFIG_DATA      *Udp4Cfg;

-  BOOLEAN                   PromiscuousNeed;

-  BOOLEAN                   AcceptPromiscuous;

-  BOOLEAN                   AcceptBroadcast;

-  BOOLEAN                   MultiCastUpdate;

-

-  if (This == NULL) {

-    DEBUG ((EFI_D_ERROR, "This == NULL.\n"));

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode = Private->PxeBc.Mode;

-

-  if (NewFilter == NULL) {

-    DEBUG ((EFI_D_ERROR, "NewFilter == NULL.\n"));

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if (NewFilter->IpCnt > EFI_PXE_BASE_CODE_MAX_IPCNT) {

-    DEBUG ((EFI_D_ERROR, "NewFilter->IpCnt > %d.\n", EFI_PXE_BASE_CODE_MAX_IPCNT));

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if (!Mode->Started) {

-    DEBUG ((EFI_D_ERROR, "BC was not started.\n"));

-    return EFI_NOT_STARTED;

-  }

-

-  if (Mode->UsingIpv6) {

-    DEBUG ((EFI_D_ERROR, "This driver is PXE for IPv4 Only.\n"));

-    return EFI_INVALID_PARAMETER;

-  }

-

-  PromiscuousNeed = FALSE;

-

-  for (Index = 0; Index < NewFilter->IpCnt; ++Index) {

-    if (IP4_IS_LOCAL_BROADCAST (EFI_IP4 (NewFilter->IpList[Index].v4))) {

-      //

-      // The IP is a broadcast address.

-      //

-      DEBUG ((EFI_D_ERROR, "There is broadcast address in NewFilter.\n"));

-      return EFI_INVALID_PARAMETER;

-    }

-    if ((EFI_NTOHL(Mode->StationIp) != 0) &&

-        (EFI_NTOHL(Mode->SubnetMask) != 0) &&

-        IP4_NET_EQUAL(EFI_NTOHL(Mode->StationIp), EFI_NTOHL(NewFilter->IpList[Index].v4), EFI_NTOHL(Mode->SubnetMask)) &&

-        NetIp4IsUnicast (EFI_IP4 (NewFilter->IpList[Index].v4), EFI_NTOHL(Mode->SubnetMask)) &&

-        ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) != 0)) {

-      //

-      // If EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP is set and IP4 address is in IpList,

-      // promiscuous mode is needed.

-      //

-      PromiscuousNeed = TRUE;

-    }

-  }

-

-  AcceptPromiscuous = FALSE;

-  AcceptBroadcast   = FALSE;

-  MultiCastUpdate   = FALSE;

-

-  if (PromiscuousNeed ||

-      ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS) != 0) ||

-      ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_PROMISCUOUS_MULTICAST) != 0)

-     ) {

-    //

-    // Configure the udp4 filter to receive all packages.

-    //

-    AcceptPromiscuous  = TRUE;

-  } else if ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_BROADCAST) != 0) {

-    //

-    // Configure the udp4 filter to receive all broadcast packages.

-    //

-    AcceptBroadcast   = TRUE;

-  }

-

-  //

-  // In multicast condition when Promiscuous FALSE and IpCnt no-zero.

-  // Here check if there is any update of the multicast ip address. If yes,

-  // we need leave the old multicast group (by Config UDP instance to NULL),

-  // and join the new multicast group.

-  //

-  if (!AcceptPromiscuous) {

-    if ((NewFilter->Filters & EFI_PXE_BASE_CODE_IP_FILTER_STATION_IP) != 0) {

-      if (Mode->IpFilter.IpCnt != NewFilter->IpCnt) {

-        MultiCastUpdate = TRUE;

-      } else if (CompareMem (Mode->IpFilter.IpList, NewFilter->IpList, NewFilter->IpCnt * sizeof (EFI_IP_ADDRESS)) != 0 ) {

-        MultiCastUpdate = TRUE;

-      }

-    }

-  }

-

-  //

-  // Check whether we need reconfigure the UDP instance.

-  //

-  Udp4Cfg = &Private->Udp4CfgData;

-  if ((AcceptPromiscuous != Udp4Cfg->AcceptPromiscuous) ||

-      (AcceptBroadcast != Udp4Cfg->AcceptBroadcast)     || MultiCastUpdate) {

-    //

-    // Clear the UDP instance configuration, all joined groups will be left

-    // during the operation.

-    //

-    Private->Udp4Read->Configure (Private->Udp4Read, NULL);

-

-    //

-    // Configure the UDP instance with the new configuration.

-    //

-    Udp4Cfg->AcceptPromiscuous = AcceptPromiscuous;

-    Udp4Cfg->AcceptBroadcast   = AcceptBroadcast;

-    Status = Private->Udp4Read->Configure (Private->Udp4Read, Udp4Cfg);

-    if (EFI_ERROR (Status)) {

-      return Status;

-    }

-

-    //

-    // In not Promiscuous mode, need to join the new multicast group.

-    //

-    if (!AcceptPromiscuous) {

-      for (Index = 0; Index < NewFilter->IpCnt; ++Index) {

-        if (IP4_IS_MULTICAST (EFI_NTOHL (NewFilter->IpList[Index].v4))) {

-          //

-          // Join the mutilcast group.

-          //

-          Status = Private->Udp4Read->Groups (Private->Udp4Read, TRUE, &NewFilter->IpList[Index].v4);

-          if (EFI_ERROR (Status)) {

-            return Status;

-          }

-        }

-      }

-    }

-  }

-

-

-  //

-  // Save the new filter.

-  //

-  CopyMem (&Mode->IpFilter, NewFilter, sizeof (Mode->IpFilter));

-

-  return EFI_SUCCESS;

-}

-

-

-/**

-  Uses the ARP protocol to resolve a MAC address.

-

-  This function uses the ARP protocol to resolve a MAC address. The UsingIpv6 field

-  of the EFI_PXE_BASE_CODE_MODE structure is used to determine if IPv4 or IPv6

-  addresses are being used. The IP address specified by IpAddr is used to resolve

-  a MAC address. If the ARP protocol succeeds in resolving the specified address,

-  then the ArpCacheEntries and ArpCache fields of the EFI_PXE_BASE_CODE_MODE structure

-  are updated, and EFI_SUCCESS is returned. If MacAddr is not NULL, the resolved

-  MAC address is placed there as well.  If the PXE Base Code protocol is in the

-  stopped state, then EFI_NOT_STARTED is returned. If the ARP protocol encounters

-  a timeout condition while attempting to resolve an address, then EFI_TIMEOUT is

-  returned. If the Callback Protocol does not return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE,

-  then EFI_ABORTED is returned.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  IpAddr                Pointer to the IP address that is used to resolve a MAC address.

-  @param  MacAddr               If not NULL, a pointer to the MAC address that was resolved with the

-                                ARP protocol.

-

-  @retval EFI_SUCCESS           The IP or MAC address was resolved.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-  @retval EFI_DEVICE_ERROR      The network device encountered an error during this operation.

-  @retval EFI_ICMP_ERROR        Something error occur with the ICMP packet message.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcArp (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       * This,

-  IN EFI_IP_ADDRESS                   * IpAddr,

-  IN EFI_MAC_ADDRESS                  * MacAddr OPTIONAL

-  )

-{

-  PXEBC_PRIVATE_DATA      *Private;

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-  EFI_STATUS              Status;

-  EFI_MAC_ADDRESS         TempMacAddr;

-

-  if (This == NULL || IpAddr == NULL) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = Private->PxeBc.Mode;

-

-  if (!Mode->Started) {

-    return EFI_NOT_STARTED;

-  }

-

-  if (!Private->AddressIsOk || Mode->UsingIpv6) {

-    //

-    // We can't resolve the IP address if we don't have a local address now.

-    // Don't have ARP for IPv6.

-    //

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Mode->IcmpErrorReceived = FALSE;

-

-  if (!Mode->AutoArp) {

-    //

-    // If AutoArp is set false, check arp cache

-    //

-    UpdateArpCache (This);

-    if (!FindInArpCache (Mode, &IpAddr->v4, &TempMacAddr)) {

-      return EFI_DEVICE_ERROR;

-    }

-  } else {

-    Status = Private->Arp->Request (Private->Arp, &IpAddr->v4, NULL, &TempMacAddr);

-    if (EFI_ERROR (Status)) {

-      if (Status == EFI_ICMP_ERROR) {

-        Mode->IcmpErrorReceived = TRUE;

-      }

-      return Status;

-    }

-  }

-

-  if (MacAddr != NULL) {

-    CopyMem (MacAddr, &TempMacAddr, sizeof (EFI_MAC_ADDRESS));

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Updates the parameters that affect the operation of the PXE Base Code Protocol.

-

-  This function sets parameters that affect the operation of the PXE Base Code Protocol.

-  The parameter specified by NewAutoArp is used to control the generation of ARP

-  protocol packets. If NewAutoArp is TRUE, then ARP Protocol packets will be generated

-  as required by the PXE Base Code Protocol. If NewAutoArp is FALSE, then no ARP

-  Protocol packets will be generated. In this case, the only mappings that are

-  available are those stored in the ArpCache of the EFI_PXE_BASE_CODE_MODE structure.

-  If there are not enough mappings in the ArpCache to perform a PXE Base Code Protocol

-  service, then the service will fail. This function updates the AutoArp field of

-  the EFI_PXE_BASE_CODE_MODE structure to NewAutoArp.

-  The SetParameters() call must be invoked after a Callback Protocol is installed

-  to enable the use of callbacks.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  NewAutoArp            If not NULL, a pointer to a value that specifies whether to replace the

-                                current value of AutoARP.

-  @param  NewSendGUID           If not NULL, a pointer to a value that specifies whether to replace the

-                                current value of SendGUID.

-  @param  NewTTL                If not NULL, a pointer to be used in place of the current value of TTL,

-                                the "time to live" field of the IP header.

-  @param  NewToS                If not NULL, a pointer to be used in place of the current value of ToS,

-                                the "type of service" field of the IP header.

-  @param  NewMakeCallback       If not NULL, a pointer to a value that specifies whether to replace the

-                                current value of the MakeCallback field of the Mode structure.

-

-  @retval EFI_SUCCESS           The new parameters values were updated.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcSetParameters (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       *This,

-  IN BOOLEAN                          *NewAutoArp OPTIONAL,

-  IN BOOLEAN                          *NewSendGUID OPTIONAL,

-  IN UINT8                            *NewTTL OPTIONAL,

-  IN UINT8                            *NewToS OPTIONAL,

-  IN BOOLEAN                          *NewMakeCallback  // OPTIONAL

-  )

-{

-  PXEBC_PRIVATE_DATA      *Private;

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-  EFI_STATUS              Status;

-

-  Status = EFI_SUCCESS;

-

-  if (This == NULL) {

-    Status = EFI_INVALID_PARAMETER;

-    goto ON_EXIT;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = Private->PxeBc.Mode;

-

-  if (NewSendGUID != NULL && *NewSendGUID) {

-    //

-    // FixMe, cann't locate SendGuid

-    //

-  }

-

-  if (NewMakeCallback != NULL && *NewMakeCallback) {

-

-    Status = gBS->HandleProtocol (

-                    Private->Controller,

-                    &gEfiPxeBaseCodeCallbackProtocolGuid,

-                    (VOID **) &Private->PxeBcCallback

-                    );

-    if (EFI_ERROR (Status) || (Private->PxeBcCallback->Callback == NULL)) {

-

-      Status = EFI_INVALID_PARAMETER;

-      goto ON_EXIT;

-    }

-  }

-

-  if (!Mode->Started) {

-    Status = EFI_NOT_STARTED;

-    goto ON_EXIT;

-  }

-

-  if (NewMakeCallback != NULL) {

-

-    if (*NewMakeCallback) {

-      //

-      // Update the Callback protocol.

-      //

-      Status = gBS->HandleProtocol (

-                      Private->Controller,

-                      &gEfiPxeBaseCodeCallbackProtocolGuid,

-                      (VOID **) &Private->PxeBcCallback

-                      );

-

-      if (EFI_ERROR (Status) || (Private->PxeBcCallback->Callback == NULL)) {

-        Status = EFI_INVALID_PARAMETER;

-        goto ON_EXIT;

-      }

-    } else {

-      Private->PxeBcCallback = NULL;

-    }

-

-    Mode->MakeCallbacks = *NewMakeCallback;

-  }

-

-  if (NewAutoArp != NULL) {

-    Mode->AutoArp = *NewAutoArp;

-  }

-

-  if (NewSendGUID != NULL) {

-    Mode->SendGUID = *NewSendGUID;

-  }

-

-  if (NewTTL != NULL) {

-    Mode->TTL = *NewTTL;

-  }

-

-  if (NewToS != NULL) {

-    Mode->ToS = *NewToS;

-  }

-

-ON_EXIT:

-  return Status;

-}

-

-/**

-  Updates the station IP address and/or subnet mask values of a network device.

-

-  This function updates the station IP address and/or subnet mask values of a network

-  device. The NewStationIp field is used to modify the network device's current IP address.

-  If NewStationIP is NULL, then the current IP address will not be modified. Otherwise,

-  this function updates the StationIp field of the EFI_PXE_BASE_CODE_MODE structure

-  with NewStationIp. The NewSubnetMask field is used to modify the network device's current subnet

-  mask. If NewSubnetMask is NULL, then the current subnet mask will not be modified.

-  Otherwise, this function updates the SubnetMask field of the EFI_PXE_BASE_CODE_MODE

-  structure with NewSubnetMask.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  NewStationIp          Pointer to the new IP address to be used by the network device.

-  @param  NewSubnetMask         Pointer to the new subnet mask to be used by the network device.

-

-  @retval EFI_SUCCESS           The new station IP address and/or subnet mask were updated.

-  @retval EFI_NOT_STARTED       The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER One or more parameters are invalid.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcSetStationIP (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       * This,

-  IN EFI_IP_ADDRESS                   * NewStationIp  OPTIONAL,

-  IN EFI_IP_ADDRESS                   * NewSubnetMask OPTIONAL

-  )

-{

-  PXEBC_PRIVATE_DATA      *Private;

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-  EFI_ARP_CONFIG_DATA     ArpConfigData;

-

-  if (This == NULL) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if (NewSubnetMask != NULL && !IP4_IS_VALID_NETMASK (NTOHL (NewSubnetMask->Addr[0]))) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  if (NewStationIp != NULL) {

-    if (IP4_IS_UNSPECIFIED(NTOHL (NewStationIp->Addr[0])) ||

-        IP4_IS_LOCAL_BROADCAST(NTOHL (NewStationIp->Addr[0])) ||

-        (NewSubnetMask != NULL && NewSubnetMask->Addr[0] != 0 && !NetIp4IsUnicast (NTOHL (NewStationIp->Addr[0]), NTOHL (NewSubnetMask->Addr[0])))) {

-      return EFI_INVALID_PARAMETER;

-    }

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = Private->PxeBc.Mode;

-

-  if (!Mode->Started) {

-    return EFI_NOT_STARTED;

-  }

-

-  if (NewStationIp != NULL) {

-    CopyMem (&Mode->StationIp, NewStationIp, sizeof (EFI_IP_ADDRESS));

-    CopyMem (&Private->StationIp, NewStationIp, sizeof (EFI_IP_ADDRESS));

-  }

-

-  if (NewSubnetMask != NULL) {

-    CopyMem (&Mode->SubnetMask, NewSubnetMask, sizeof (EFI_IP_ADDRESS));

-    CopyMem (&Private->SubnetMask ,NewSubnetMask, sizeof (EFI_IP_ADDRESS));

-  }

-

-  Private->AddressIsOk = TRUE;

-

-  if (!Mode->UsingIpv6) {

-    //

-    // If in IPv4 mode, configure the corresponding ARP with this new

-    // station IP address.

-    //

-    ZeroMem (&ArpConfigData, sizeof (EFI_ARP_CONFIG_DATA));

-

-    ArpConfigData.SwAddressType   = 0x0800;

-    ArpConfigData.SwAddressLength = (UINT8) sizeof (EFI_IPv4_ADDRESS);

-    ArpConfigData.StationAddress  = &Private->StationIp.v4;

-

-    Private->Arp->Configure (Private->Arp, NULL);

-    Private->Arp->Configure (Private->Arp, &ArpConfigData);

-

-    //

-    // Update the route table.

-    //

-    Mode->RouteTableEntries                = 1;

-    Mode->RouteTable[0].IpAddr.Addr[0]     = Private->StationIp.Addr[0] & Private->SubnetMask.Addr[0];

-    Mode->RouteTable[0].SubnetMask.Addr[0] = Private->SubnetMask.Addr[0];

-    Mode->RouteTable[0].GwAddr.Addr[0]     = 0;

-  }

-

-  return EFI_SUCCESS;

-}

-

-/**

-  Updates the contents of the cached DHCP and Discover packets.

-

-  The pointers to the new packets are used to update the contents of the cached

-  packets in the EFI_PXE_BASE_CODE_MODE structure.

-

-  @param  This                   Pointer to the EFI_PXE_BASE_CODE_PROTOCOL instance.

-  @param  NewDhcpDiscoverValid   Pointer to a value that will replace the current

-                                 DhcpDiscoverValid field.

-  @param  NewDhcpAckReceived     Pointer to a value that will replace the current

-                                 DhcpAckReceived field.

-  @param  NewProxyOfferReceived  Pointer to a value that will replace the current

-                                 ProxyOfferReceived field.

-  @param  NewPxeDiscoverValid    Pointer to a value that will replace the current

-                                 ProxyOfferReceived field.

-  @param  NewPxeReplyReceived    Pointer to a value that will replace the current

-                                 PxeReplyReceived field.

-  @param  NewPxeBisReplyReceived Pointer to a value that will replace the current

-                                 PxeBisReplyReceived field.

-  @param  NewDhcpDiscover        Pointer to the new cached DHCP Discover packet contents.

-  @param  NewDhcpAck             Pointer to the new cached DHCP Ack packet contents.

-  @param  NewProxyOffer          Pointer to the new cached Proxy Offer packet contents.

-  @param  NewPxeDiscover         Pointer to the new cached PXE Discover packet contents.

-  @param  NewPxeReply            Pointer to the new cached PXE Reply packet contents.

-  @param  NewPxeBisReply         Pointer to the new cached PXE BIS Reply packet contents.

-

-  @retval EFI_SUCCESS            The cached packet contents were updated.

-  @retval EFI_NOT_STARTED        The PXE Base Code Protocol is in the stopped state.

-  @retval EFI_INVALID_PARAMETER  This is NULL or not point to a valid EFI_PXE_BASE_CODE_PROTOCOL structure.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeBcSetPackets (

-  IN EFI_PXE_BASE_CODE_PROTOCOL       * This,

-  IN BOOLEAN                          * NewDhcpDiscoverValid OPTIONAL,

-  IN BOOLEAN                          * NewDhcpAckReceived OPTIONAL,

-  IN BOOLEAN                          * NewProxyOfferReceived OPTIONAL,

-  IN BOOLEAN                          * NewPxeDiscoverValid OPTIONAL,

-  IN BOOLEAN                          * NewPxeReplyReceived OPTIONAL,

-  IN BOOLEAN                          * NewPxeBisReplyReceived OPTIONAL,

-  IN EFI_PXE_BASE_CODE_PACKET         * NewDhcpDiscover OPTIONAL,

-  IN EFI_PXE_BASE_CODE_PACKET         * NewDhcpAck OPTIONAL,

-  IN EFI_PXE_BASE_CODE_PACKET         * NewProxyOffer OPTIONAL,

-  IN EFI_PXE_BASE_CODE_PACKET         * NewPxeDiscover OPTIONAL,

-  IN EFI_PXE_BASE_CODE_PACKET         * NewPxeReply OPTIONAL,

-  IN EFI_PXE_BASE_CODE_PACKET         * NewPxeBisReply OPTIONAL

-  )

-{

-  PXEBC_PRIVATE_DATA      *Private;

-  EFI_PXE_BASE_CODE_MODE  *Mode;

-

-  if (This == NULL) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private = PXEBC_PRIVATE_DATA_FROM_PXEBC (This);

-  Mode    = Private->PxeBc.Mode;

-

-  if (!Mode->Started) {

-    return EFI_NOT_STARTED;

-  }

-

-  if (NewDhcpDiscoverValid != NULL) {

-    Mode->DhcpDiscoverValid = *NewDhcpDiscoverValid;

-  }

-

-  if (NewDhcpAckReceived != NULL) {

-    Mode->DhcpAckReceived = *NewDhcpAckReceived;

-  }

-

-  if (NewProxyOfferReceived != NULL) {

-    Mode->ProxyOfferReceived = *NewProxyOfferReceived;

-  }

-

-  if (NewPxeDiscoverValid != NULL) {

-    Mode->PxeDiscoverValid = *NewPxeDiscoverValid;

-  }

-

-  if (NewPxeReplyReceived != NULL) {

-    Mode->PxeReplyReceived = *NewPxeReplyReceived;

-  }

-

-  if (NewPxeBisReplyReceived != NULL) {

-    Mode->PxeBisReplyReceived = *NewPxeBisReplyReceived;

-  }

-

-  if (NewDhcpDiscover != NULL) {

-    CopyMem (&Mode->DhcpDiscover, NewDhcpDiscover, sizeof (EFI_PXE_BASE_CODE_PACKET));

-  }

-

-  if (NewDhcpAck != NULL) {

-    CopyMem (&Mode->DhcpAck, NewDhcpAck, sizeof (EFI_PXE_BASE_CODE_PACKET));

-  }

-

-  if (NewProxyOffer != NULL) {

-    CopyMem (&Mode->ProxyOffer, NewProxyOffer, sizeof (EFI_PXE_BASE_CODE_PACKET));

-  }

-

-  if (NewPxeDiscover != NULL) {

-    CopyMem (&Mode->PxeDiscover, NewPxeDiscover, sizeof (EFI_PXE_BASE_CODE_PACKET));

-  }

-

-  if (NewPxeReply != NULL) {

-    CopyMem (&Mode->PxeReply, NewPxeReply, sizeof (EFI_PXE_BASE_CODE_PACKET));

-  }

-

-  if (NewPxeBisReply != NULL) {

-    CopyMem (&Mode->PxeBisReply, NewPxeBisReply, sizeof (EFI_PXE_BASE_CODE_PACKET));

-  }

-

-  return EFI_SUCCESS;

-}

-

-EFI_PXE_BASE_CODE_PROTOCOL  mPxeBcProtocolTemplate = {

-  EFI_PXE_BASE_CODE_PROTOCOL_REVISION,

-  EfiPxeBcStart,

-  EfiPxeBcStop,

-  EfiPxeBcDhcp,

-  EfiPxeBcDiscover,

-  EfiPxeBcMtftp,

-  EfiPxeBcUdpWrite,

-  EfiPxeBcUdpRead,

-  EfiPxeBcSetIpFilter,

-  EfiPxeBcArp,

-  EfiPxeBcSetParameters,

-  EfiPxeBcSetStationIP,

-  EfiPxeBcSetPackets,

-  NULL

-};

-

-/**

-  Callback function that is invoked when the PXE Base Code Protocol is about to transmit, has

-  received, or is waiting to receive a packet.

-

-  This function is invoked when the PXE Base Code Protocol is about to transmit, has received,

-  or is waiting to receive a packet. Parameters Function and Received specify the type of event.

-  Parameters PacketLen and Packet specify the packet that generated the event. If these fields

-  are zero and NULL respectively, then this is a status update callback. If the operation specified

-  by Function is to continue, then CALLBACK_STATUS_CONTINUE should be returned. If the operation

-  specified by Function should be aborted, then CALLBACK_STATUS_ABORT should be returned. Due to

-  the polling nature of UEFI device drivers, a callback function should not execute for more than 5 ms.

-  The SetParameters() function must be called after a Callback Protocol is installed to enable the

-  use of callbacks.

-

-  @param  This                  Pointer to the EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL instance.

-  @param  Function              The PXE Base Code Protocol function that is waiting for an event.

-  @param  Received              TRUE if the callback is being invoked due to a receive event. FALSE if

-                                the callback is being invoked due to a transmit event.

-  @param  PacketLength          The length, in bytes, of Packet. This field will have a value of zero if

-                                this is a wait for receive event.

-  @param  PacketPtr             If Received is TRUE, a pointer to the packet that was just received;

-                                otherwise a pointer to the packet that is about to be transmitted.

-

-  @retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE if Function specifies a continue operation

-  @retval EFI_PXE_BASE_CODE_CALLBACK_STATUS_ABORT    if Function specifies an abort operation

-

-**/

-EFI_PXE_BASE_CODE_CALLBACK_STATUS

-EFIAPI

-EfiPxeLoadFileCallback (

-  IN EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL  * This,

-  IN EFI_PXE_BASE_CODE_FUNCTION           Function,

-  IN BOOLEAN                              Received,

-  IN UINT32                               PacketLength,

-  IN EFI_PXE_BASE_CODE_PACKET             * PacketPtr OPTIONAL

-  )

-{

-  EFI_INPUT_KEY Key;

-  EFI_STATUS    Status;

-

-  //

-  // Catch Ctrl-C or ESC to abort.

-  //

-  Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);

-

-  if (!EFI_ERROR (Status)) {

-

-    if (Key.ScanCode == SCAN_ESC || Key.UnicodeChar == (0x1F & 'c')) {

-

-      return EFI_PXE_BASE_CODE_CALLBACK_STATUS_ABORT;

-    }

-  }

-  //

-  // No print if receive packet

-  //

-  if (Received) {

-    return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;

-  }

-  //

-  // Print only for three functions

-  //

-  switch (Function) {

-

-  case EFI_PXE_BASE_CODE_FUNCTION_MTFTP:

-    //

-    // Print only for open MTFTP packets, not every MTFTP packets

-    //

-    if (PacketLength != 0 && PacketPtr != NULL) {

-      if (PacketPtr->Raw[0x1C] != 0x00 || PacketPtr->Raw[0x1D] != 0x01) {

-        return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;

-      }

-    }

-    break;

-

-  case EFI_PXE_BASE_CODE_FUNCTION_DHCP:

-  case EFI_PXE_BASE_CODE_FUNCTION_DISCOVER:

-    break;

-

-  default:

-    return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;

-  }

-

-  if (PacketLength != 0 && PacketPtr != NULL) {

-    //

-    // Print '.' when transmit a packet

-    //

-    AsciiPrint (".");

-

-  }

-

-  return EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE;

-}

-

-EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL mPxeBcCallBackTemplate = {

-  EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL_REVISION,

-  EfiPxeLoadFileCallback

-};

-

-

-/**

-  Find the boot file.

-

-  @param  Private      Pointer to PxeBc private data.

-  @param  BufferSize   Pointer to buffer size.

-  @param  Buffer       Pointer to buffer.

-

-  @retval EFI_SUCCESS          Discover the boot file successfully.

-  @retval EFI_TIMEOUT          The TFTP/MTFTP operation timed out.

-  @retval EFI_ABORTED          PXE bootstrap server, so local boot need abort.

-  @retval EFI_BUFFER_TOO_SMALL The buffer is too small to load the boot file.

-

-**/

-EFI_STATUS

-DiscoverBootFile (

-  IN     PXEBC_PRIVATE_DATA  *Private,

-  IN OUT UINT64              *BufferSize,

-  IN     VOID                *Buffer

-  )

-{

-  EFI_PXE_BASE_CODE_PROTOCOL  *PxeBc;

-  EFI_PXE_BASE_CODE_MODE      *Mode;

-  EFI_STATUS                  Status;

-  UINT16                      Type;

-  UINT16                      Layer;

-  BOOLEAN                     UseBis;

-  PXEBC_CACHED_DHCP4_PACKET   *Packet;

-  UINT16                      Value;

-

-  PxeBc = &Private->PxeBc;

-  Mode  = PxeBc->Mode;

-  Type  = EFI_PXE_BASE_CODE_BOOT_TYPE_BOOTSTRAP;

-  Layer = EFI_PXE_BASE_CODE_BOOT_LAYER_INITIAL;

-

-  //

-  // do DHCP.

-  //

-  Status = PxeBc->Dhcp (PxeBc, TRUE);

-  if (EFI_ERROR (Status)) {

-    return Status;

-  }

-

-  //

-  // Select a boot server

-  //

-  Status = PxeBcSelectBootPrompt (Private);

-

-  if (Status == EFI_SUCCESS) {

-    Status = PxeBcSelectBootMenu (Private, &Type, TRUE);

-  } else if (Status == EFI_TIMEOUT) {

-    Status = PxeBcSelectBootMenu (Private, &Type, FALSE);

-  }

-

-  if (!EFI_ERROR (Status)) {

-

-    if (Type == EFI_PXE_BASE_CODE_BOOT_TYPE_BOOTSTRAP) {

-      //

-      // Local boot(PXE bootstrap server) need abort

-      //

-      return EFI_ABORTED;

-    }

-

-    UseBis  = (BOOLEAN) (Mode->BisSupported && Mode->BisDetected);

-    Status  = PxeBc->Discover (PxeBc, Type, &Layer, UseBis, NULL);

-    if (EFI_ERROR (Status)) {

-      return Status;

-    }

-  }

-

-  *BufferSize = 0;

-

-  //

-  // Get bootfile name and (m)tftp server ip addresss

-  //

-  if (Mode->PxeReplyReceived) {

-    Packet = &Private->PxeReply;

-  } else if (Mode->ProxyOfferReceived) {

-    Packet = &Private->ProxyOffer;

-  } else {

-    Packet = &Private->Dhcp4Ack;

-  }

-

-  //

-  // Use siaddr(next server) in DHCPOFFER packet header, if zero, use option 54(server identifier)

-  // in DHCPOFFER packet.

-  // (It does not comply with PXE Spec, Ver2.1)

-  //

-  if (EFI_IP4_EQUAL (&Packet->Packet.Offer.Dhcp4.Header.ServerAddr, &mZeroIp4Addr)) {

-    CopyMem (

-      &Private->ServerIp,

-      Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_SERVER_ID]->Data,

-      sizeof (EFI_IPv4_ADDRESS)

-      );

-  } else {

-    CopyMem (

-      &Private->ServerIp,

-      &Packet->Packet.Offer.Dhcp4.Header.ServerAddr,

-      sizeof (EFI_IPv4_ADDRESS)

-      );

-  }

-  if (Private->ServerIp.Addr[0] == 0) {

-    return EFI_DEVICE_ERROR;

-  }

-

-  ASSERT (Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE] != NULL);

-

-  //

-  // bootlfile name

-  //

-  Private->BootFileName = (CHAR8 *) (Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE]->Data);

-

-  if (Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN] != NULL) {

-    //

-    // Already have the bootfile length option, compute the file size

-    //

-    CopyMem (&Value, Packet->Dhcp4Option[PXEBC_DHCP4_TAG_INDEX_BOOTFILE_LEN]->Data, sizeof (Value));

-    Value       = NTOHS (Value);

-    *BufferSize = 512 * Value;

-    Status      = EFI_BUFFER_TOO_SMALL;

-  } else {

-    //

-    // Get the bootfile size from tftp

-    //

-    Status = PxeBc->Mtftp (

-                      PxeBc,

-                      EFI_PXE_BASE_CODE_TFTP_GET_FILE_SIZE,

-                      Buffer,

-                      FALSE,

-                      BufferSize,

-                      &Private->BlockSize,

-                      &Private->ServerIp,

-                      (UINT8 *) Private->BootFileName,

-                      NULL,

-                      FALSE

-                      );

-  }

-

-  Private->FileSize = (UINTN) *BufferSize;

-

-  //

-  // Display all the information: boot server address, boot file name and boot file size.

-  //

-  AsciiPrint ("\n  Server IP address is ");

-  PxeBcShowIp4Addr (&Private->ServerIp.v4);

-  AsciiPrint ("\n  NBP filename is %a", Private->BootFileName);

-  AsciiPrint ("\n  NBP filesize is %d Bytes", Private->FileSize);

-

-  return Status;

-}

-

-/**

-  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 no 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.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeLoadFile (

-  IN EFI_LOAD_FILE_PROTOCOL           * This,

-  IN EFI_DEVICE_PATH_PROTOCOL         * FilePath,

-  IN BOOLEAN                          BootPolicy,

-  IN OUT UINTN                        *BufferSize,

-  IN VOID                             *Buffer OPTIONAL

-  )

-{

-  PXEBC_PRIVATE_DATA          *Private;

-  EFI_PXE_BASE_CODE_PROTOCOL  *PxeBc;

-  BOOLEAN                     NewMakeCallback;

-  EFI_STATUS                  Status;

-  UINT64                      TmpBufSize;

-  EFI_STATUS                  MediaStatus;

-

-  if (FilePath == NULL || !IsDevicePathEnd (FilePath)) {

-    return EFI_INVALID_PARAMETER;

-  }

-

-  Private         = PXEBC_PRIVATE_DATA_FROM_LOADFILE (This);

-  PxeBc           = &Private->PxeBc;

-  NewMakeCallback = FALSE;

-  Status          = EFI_DEVICE_ERROR;

-

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

-

-    return EFI_INVALID_PARAMETER;

-  }

-

-  //

-  // Only support BootPolicy

-  //

-  if (!BootPolicy) {

-    return EFI_UNSUPPORTED;

-  }

-

-  //

-  // Check media status before PXE start

-  //

-  MediaStatus = EFI_SUCCESS;

-  NetLibDetectMediaWaitTimeout (Private->Controller, PXEBC_CHECK_MEDIA_WAITING_TIME, &MediaStatus);

-  if (MediaStatus != EFI_SUCCESS) {

-    return EFI_NO_MEDIA;

-  }

-

-  Status = PxeBc->Start (PxeBc, FALSE);

-  if (EFI_ERROR (Status) && (Status != EFI_ALREADY_STARTED)) {

-    return Status;

-  }

-

-  Status = gBS->HandleProtocol (

-                  Private->Controller,

-                  &gEfiPxeBaseCodeCallbackProtocolGuid,

-                  (VOID **) &Private->PxeBcCallback

-                  );

-  if (Status == EFI_UNSUPPORTED) {

-

-    CopyMem (&Private->LoadFileCallback, &mPxeBcCallBackTemplate, sizeof (Private->LoadFileCallback));

-

-    Status = gBS->InstallProtocolInterface (

-                    &Private->Controller,

-                    &gEfiPxeBaseCodeCallbackProtocolGuid,

-                    EFI_NATIVE_INTERFACE,

-                    &Private->LoadFileCallback

-                    );

-

-    NewMakeCallback = (BOOLEAN) (Status == EFI_SUCCESS);

-

-    Status          = PxeBc->SetParameters (PxeBc, NULL, NULL, NULL, NULL, &NewMakeCallback);

-    if (EFI_ERROR (Status)) {

-      PxeBc->Stop (PxeBc);

-      return Status;

-    }

-  }

-

-  if (Private->FileSize == 0) {

-    TmpBufSize  = 0;

-    Status      = DiscoverBootFile (Private, &TmpBufSize, Buffer);

-

-    if (sizeof (UINTN) < sizeof (UINT64) && (TmpBufSize > 0xFFFFFFFF)) {

-      Status = EFI_DEVICE_ERROR;

-    } else if (TmpBufSize > 0 && *BufferSize >= (UINTN) TmpBufSize && Buffer != NULL) {

-      AsciiPrint ("\n Downloading NBP file...\n");

-      *BufferSize = (UINTN) TmpBufSize;

-      Status = PxeBc->Mtftp (

-                        PxeBc,

-                        EFI_PXE_BASE_CODE_TFTP_READ_FILE,

-                        Buffer,

-                        FALSE,

-                        &TmpBufSize,

-                        &Private->BlockSize,

-                        &Private->ServerIp,

-                        (UINT8 *) Private->BootFileName,

-                        NULL,

-                        FALSE

-                        );

-    } else if (TmpBufSize > 0) {

-      *BufferSize = (UINTN) TmpBufSize;

-      Status      = EFI_BUFFER_TOO_SMALL;

-    }

-  } else if (Buffer == NULL || Private->FileSize > *BufferSize) {

-    *BufferSize = Private->FileSize;

-    Status      = EFI_BUFFER_TOO_SMALL;

-  } else {

-    //

-    // Download the file.

-    //

-    AsciiPrint ("\n Downloading NBP file...\n");

-    TmpBufSize = (UINT64) (*BufferSize);

-    Status = PxeBc->Mtftp (

-                      PxeBc,

-                      EFI_PXE_BASE_CODE_TFTP_READ_FILE,

-                      Buffer,

-                      FALSE,

-                      &TmpBufSize,

-                      &Private->BlockSize,

-                      &Private->ServerIp,

-                      (UINT8 *) Private->BootFileName,

-                      NULL,

-                      FALSE

-                      );

-  }

-  //

-  // If we added a callback protocol, now is the time to remove it.

-  //

-  if (NewMakeCallback) {

-

-    NewMakeCallback = FALSE;

-

-    PxeBc->SetParameters (PxeBc, NULL, NULL, NULL, NULL, &NewMakeCallback);

-

-    gBS->UninstallProtocolInterface (

-          Private->Controller,

-          &gEfiPxeBaseCodeCallbackProtocolGuid,

-          &Private->LoadFileCallback

-          );

-  }

-

-  //

-  // Check download status

-  //

-  if (Status == EFI_SUCCESS) {

-    AsciiPrint ("\n  NBP file downloaded successfully.\n");

-    //

-    // The DHCP4 can have only one configured child instance so we need to stop

-    // reset the DHCP4 child before we return. Otherwise the other programs which

-    // also need to use DHCP4 will be impacted.

-    // The functionality of PXE Base Code protocol will not be stopped,

-    // when downloading is successfully.

-    //

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

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

-    return EFI_SUCCESS;

-

-  } else if (Status == EFI_BUFFER_TOO_SMALL) {

-    if (Buffer != NULL) {

-      AsciiPrint ("PXE-E05: Download buffer is smaller than requested file.\n");

-    } else {

-      //

-      // The functionality of PXE Base Code protocol will not be stopped.

-      //

-      return Status;

-    }

-

-  } else if (Status == EFI_DEVICE_ERROR) {

-    AsciiPrint ("PXE-E07: Network device error.\n");

-

-  } else if (Status == EFI_OUT_OF_RESOURCES) {

-    AsciiPrint ("PXE-E09: Could not allocate I/O buffers.\n");

-

-  } else if (Status == EFI_NO_MEDIA) {

-    AsciiPrint ("PXE-E12: Could not detect network connection.\n");

-

-  } else if (Status == EFI_NO_RESPONSE) {

-    AsciiPrint ("PXE-E16: No offer received.\n");

-

-  } else if (Status == EFI_TIMEOUT) {

-    AsciiPrint ("PXE-E18: Server response timeout.\n");

-

-  } else if (Status == EFI_ABORTED) {

-    AsciiPrint ("PXE-E21: Remote boot cancelled.\n");

-

-  } else if (Status == EFI_ICMP_ERROR) {

-    AsciiPrint ("PXE-E22: Client received ICMP error from server.\n");

-

-  } else if (Status == EFI_TFTP_ERROR) {

-    AsciiPrint ("PXE-E23: Client received TFTP error from server.\n");

-

-  } else {

-    AsciiPrint ("PXE-E99: Unexpected network error.\n");

-  }

-

-  PxeBc->Stop (PxeBc);

-

-  return Status;

-}

-

-EFI_LOAD_FILE_PROTOCOL  mLoadFileProtocolTemplate = { EfiPxeLoadFile };

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.h b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.h
deleted file mode 100644
index e96b6f2c5d..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcImpl.h
+++ /dev/null
@@ -1,189 +0,0 @@
-/** @file

-

-Copyright (c) 2007 - 2016, 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

-which 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.

-

-**/

-

-#ifndef __EFI_PXEBC_IMPL_H__

-#define __EFI_PXEBC_IMPL_H__

-

-

-typedef struct _PXEBC_PRIVATE_DATA  PXEBC_PRIVATE_DATA;

-

-#include <Uefi.h>

-

-#include <Guid/SmBios.h>

-#include <IndustryStandard/SmBios.h>

-#include <IndustryStandard/Dhcp.h>

-#include <Protocol/Dhcp4.h>

-#include <Protocol/PxeBaseCode.h>

-#include <Protocol/Mtftp4.h>

-#include <Protocol/Udp4.h>

-#include <Protocol/LoadFile.h>

-#include <Protocol/NetworkInterfaceIdentifier.h>

-#include <Protocol/PxeBaseCodeCallBack.h>

-#include <Protocol/Arp.h>

-#include <Protocol/Ip4.h>

-#include <Protocol/Ip4Config2.h>

-

-#include <Library/DebugLib.h>

-#include <Library/DevicePathLib.h>

-#include <Library/BaseMemoryLib.h>

-#include <Library/MemoryAllocationLib.h>

-#include <Library/UefiDriverEntryPoint.h>

-#include <Library/UefiBootServicesTableLib.h>

-#include <Library/UefiLib.h>

-#include <Library/BaseLib.h>

-#include <Library/NetLib.h>

-#include <Library/DpcLib.h>

-#include <Library/PcdLib.h>

-

-#include "PxeBcDriver.h"

-#include "PxeBcDhcp.h"

-#include "PxeBcMtftp.h"

-#include "PxeBcSupport.h"

-

-#define PXEBC_PRIVATE_DATA_SIGNATURE  SIGNATURE_32 ('P', 'X', 'E', 'P')

-#define PXEBC_MTFTP_TIMEOUT                4

-#define PXEBC_MTFTP_RETRIES                6

-#define PXEBC_DEFAULT_UDP_OVERHEAD_SIZE    8

-#define PXEBC_DEFAULT_TFTP_OVERHEAD_SIZE   4

-#define PXEBC_DEFAULT_PACKET_SIZE          1480

-#define PXEBC_DEFAULT_LIFETIME             50000  // 50ms, unit is microsecond

-#define PXEBC_CHECK_MEDIA_WAITING_TIME     EFI_TIMER_PERIOD_SECONDS(20)

-

-struct _PXEBC_PRIVATE_DATA {

-  UINT32                                    Signature;

-  EFI_HANDLE                                Controller;

-  EFI_HANDLE                                Image;

-  EFI_HANDLE                                ArpChild;

-  EFI_HANDLE                                Dhcp4Child;

-  EFI_HANDLE                                Ip4Child;

-  EFI_HANDLE                                Mtftp4Child;

-  EFI_HANDLE                                Udp4ReadChild;

-  EFI_HANDLE                                Udp4WriteChild;

-

-  EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL *Nii;

-

-  EFI_PXE_BASE_CODE_PROTOCOL                PxeBc;

-  EFI_LOAD_FILE_PROTOCOL                    LoadFile;

-  EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL       LoadFileCallback;

-  EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL       *PxeBcCallback;

-  EFI_ARP_PROTOCOL                          *Arp;

-  EFI_DHCP4_PROTOCOL                        *Dhcp4;

-  EFI_IP4_PROTOCOL                          *Ip4;

-  EFI_IP4_CONFIG2_PROTOCOL                  *Ip4Config2;

-  EFI_IP4_CONFIG_DATA                       Ip4ConfigData;

-  EFI_MTFTP4_PROTOCOL                       *Mtftp4;

-  EFI_UDP4_PROTOCOL                         *Udp4Read;

-  EFI_UDP4_PROTOCOL                         *Udp4Write;

-  UINT16                                    CurrentUdpSrcPort;

-  EFI_UDP4_CONFIG_DATA                      Udp4CfgData;

-

-

-  EFI_PXE_BASE_CODE_MODE                    Mode;

-  EFI_PXE_BASE_CODE_FUNCTION                Function;

-

-  CHAR8                                     *BootFileName;

-

-  EFI_IP_ADDRESS                            StationIp;

-  EFI_IP_ADDRESS                            SubnetMask;

-  EFI_IP_ADDRESS                            GatewayIp;

-  EFI_IP_ADDRESS                            ServerIp;

-  BOOLEAN                                   AddressIsOk;

-  UINT32                                    Ip4MaxPacketSize;

-  UINTN                                     BlockSize;

-  UINTN                                     FileSize;

-

-  UINT8                                     OptionBuffer[PXEBC_DHCP4_MAX_OPTION_SIZE];

-  EFI_DHCP4_PACKET                          SeedPacket;

-  EFI_MAC_ADDRESS                           Mac;

-  UINT8                                     MacLen;

-

-  BOOLEAN                                   SortOffers;

-  BOOLEAN                                   GotProxyOffer;

-  UINT32                                    NumOffers;

-  UINT32                                    SelectedOffer;

-  UINT32                                    ProxyOfferType;

-

-  //

-  // Cached packets as complements of pxe mode data

-  //

-  PXEBC_CACHED_DHCP4_PACKET                 ProxyOffer;

-  PXEBC_CACHED_DHCP4_PACKET                 Dhcp4Ack;

-  PXEBC_CACHED_DHCP4_PACKET                 PxeReply;

-  PXEBC_CACHED_DHCP4_PACKET                 Dhcp4Offers[PXEBC_MAX_OFFER_NUM];

-

-  //

-  // Arrays for different types of offers:

-  //   ServerCount records the count of the servers we got the offers,

-  //   OfferIndex records the index of the offer sent by the server indexed by ServerCount.

-  //

-  UINT32                                    ServerCount[DHCP4_PACKET_TYPE_MAX];

-  UINT32                                    OfferIndex[DHCP4_PACKET_TYPE_MAX][PXEBC_MAX_OFFER_NUM];

-  UINT32                                    BootpIndex;

-  UINT32                                    ProxyIndex[DHCP4_PACKET_TYPE_MAX];

-  UINT32                                    BinlIndex[PXEBC_MAX_OFFER_NUM];

-

-  EFI_EVENT                                 GetArpCacheEvent;

-  //

-  // token and event used to get ICMP error data from IP

-  //

-  EFI_IP4_COMPLETION_TOKEN                  IcmpErrorRcvToken;

-};

-

-#define PXEBC_PRIVATE_DATA_FROM_PXEBC(a)          CR (a, PXEBC_PRIVATE_DATA, PxeBc, PXEBC_PRIVATE_DATA_SIGNATURE)

-

-#define PXEBC_PRIVATE_DATA_FROM_LOADFILE(a)       CR (a, PXEBC_PRIVATE_DATA, LoadFile, PXEBC_PRIVATE_DATA_SIGNATURE)

-

-#define PXEBC_PRIVATE_DATA_FROM_PXEBCCALLBACK(a)  CR (a, PXEBC_PRIVATE_DATA, PxeBcCallback, PXEBC_PRIVATE_DATA_SIGNATURE)

-

-extern EFI_PXE_BASE_CODE_PROTOCOL mPxeBcProtocolTemplate;

-extern EFI_LOAD_FILE_PROTOCOL     mLoadFileProtocolTemplate;

-

-/**

-  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 no 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.

-

-**/

-EFI_STATUS

-EFIAPI

-EfiPxeLoadFile (

-  IN EFI_LOAD_FILE_PROTOCOL           * This,

-  IN EFI_DEVICE_PATH_PROTOCOL         * FilePath,

-  IN BOOLEAN                          BootPolicy,

-  IN OUT UINTN                        *BufferSize,

-  IN VOID                             *Buffer OPTIONAL

-  );

-

-#endif

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcMtftp.c b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcMtftp.c
deleted file mode 100644
index 88767c8394..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcMtftp.c
+++ /dev/null
@@ -1,454 +0,0 @@
-/** @file

-  PxeBc MTFTP functions.

-

-Copyright (c) 2007 - 2018, 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

-which 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 "PxeBcImpl.h"

-

-CHAR8 *mMtftpOptions[PXE_MTFTP_OPTION_MAXIMUM_INDEX] = {

-  "blksize",

-  "timeout",

-  "tsize",

-  "multicast"

-};

-

-

-/**

-  This is a callback function when packets received/transmitted in Mtftp driver.

-

-  A callback function that is provided by the caller to intercept

-  the EFI_MTFTP4_OPCODE_DATA or EFI_MTFTP4_OPCODE_DATA8 packets processed in the

-  EFI_MTFTP4_PROTOCOL.ReadFile() function, and alternatively to intercept

-  EFI_MTFTP4_OPCODE_OACK or EFI_MTFTP4_OPCODE_ERROR packets during a call to

-  EFI_MTFTP4_PROTOCOL.ReadFile(), WriteFile() or ReadDirectory().

-

-  @param  This           Pointer to Mtftp protocol instance

-  @param  Token          Pointer to Mtftp token

-  @param  PacketLen      Length of Mtftp packet

-  @param  Packet         Pointer to Mtftp packet

-

-  @retval EFI_SUCCESS    Operation sucess

-  @retval EFI_ABORTED    Abort transfer process

-

-**/

-EFI_STATUS

-EFIAPI

-PxeBcCheckPacket (

-  IN EFI_MTFTP4_PROTOCOL        *This,

-  IN EFI_MTFTP4_TOKEN           *Token,

-  IN UINT16                     PacketLen,

-  IN EFI_MTFTP4_PACKET          *Packet

-  )

-{

-  PXEBC_PRIVATE_DATA                  *Private;

-  EFI_PXE_BASE_CODE_CALLBACK_PROTOCOL *Callback;

-  EFI_STATUS                          Status;

-

-  Private   = (PXEBC_PRIVATE_DATA *) Token->Context;

-  Callback  = Private->PxeBcCallback;

-  Status    = EFI_SUCCESS;

-

-  if (Packet->OpCode == EFI_MTFTP4_OPCODE_ERROR) {

-    Private->Mode.TftpErrorReceived = TRUE;

-    Private->Mode.TftpError.ErrorCode = (UINT8) Packet->Error.ErrorCode;

-    AsciiStrnCpyS (Private->Mode.TftpError.ErrorString, PXE_MTFTP_ERROR_STRING_LENGTH, (CHAR8 *) Packet->Error.ErrorMessage, PXE_MTFTP_ERROR_STRING_LENGTH - 1);

-    Private->Mode.TftpError.ErrorString[PXE_MTFTP_ERROR_STRING_LENGTH - 1] = '\0';

-  }

-

-  if (Callback != NULL) {

-

-    Status = Callback->Callback (

-                        Callback,

-                        Private->Function,

-                        TRUE,

-                        PacketLen,

-                        (EFI_PXE_BASE_CODE_PACKET *) Packet

-                        );

-    if (Status != EFI_PXE_BASE_CODE_CALLBACK_STATUS_CONTINUE) {

-

-      Status = EFI_ABORTED;

-    } else {

-

-      Status = EFI_SUCCESS;

-    }

-  }

-

-  return Status;

-}

-

-

-/**

-  This function is to get size of a file by Tftp.

-

-  @param  Private        Pointer to PxeBc private data

-  @param  Config         Pointer to Mtftp configuration data

-  @param  Filename       Pointer to file name

-  @param  BlockSize      Pointer to block size

-  @param  BufferSize     Pointer to buffer size

-

-  @retval EFI_SUCCESS        Get the size of file success

-  @retval EFI_NOT_FOUND      Parse the tftp ptions failed.

-  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.

-  @retval Other              Has not get the size of the file.

-

-**/

-EFI_STATUS

-PxeBcTftpGetFileSize (

-  IN PXEBC_PRIVATE_DATA         *Private,

-  IN EFI_MTFTP4_CONFIG_DATA     *Config,

-  IN UINT8                      *Filename,

-  IN UINTN                      *BlockSize,

-  IN OUT UINT64                 *BufferSize

-  )

-{

-  EFI_MTFTP4_PROTOCOL *Mtftp4;

-  EFI_MTFTP4_OPTION   ReqOpt[2];

-  EFI_MTFTP4_PACKET   *Packet;

-  EFI_MTFTP4_OPTION   *Option;

-  UINT32              PktLen;

-  UINT8               OptBuf[128];

-  UINT32              OptCnt;

-  EFI_STATUS          Status;

-

-  *BufferSize               = 0;

-  Status                    = EFI_DEVICE_ERROR;

-  Mtftp4                    = Private->Mtftp4;

-  Packet                    = NULL;

-  Option                    = NULL;

-  PktLen                    = 0;

-  OptCnt                    = 1;

-  Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;

-

-  Status = Mtftp4->Configure (Mtftp4, Config);

-  if (EFI_ERROR (Status)) {

-

-    return Status;

-  }

-

-  ReqOpt[0].OptionStr = (UINT8*)mMtftpOptions[PXE_MTFTP_OPTION_TSIZE_INDEX];

-  UtoA10 (0, (CHAR8 *) OptBuf, PXE_MTFTP_OPTBUF_MAXNUM_INDEX);

-  ReqOpt[0].ValueStr = OptBuf;

-

-  if (BlockSize != NULL) {

-    ReqOpt[1].OptionStr = (UINT8*)mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];

-    ReqOpt[1].ValueStr  = ReqOpt[0].ValueStr + AsciiStrLen ((CHAR8 *) ReqOpt[0].ValueStr) + 1;

-    UtoA10 (*BlockSize, (CHAR8 *) ReqOpt[1].ValueStr, PXE_MTFTP_OPTBUF_MAXNUM_INDEX - (AsciiStrLen ((CHAR8 *) ReqOpt[0].ValueStr) + 1));

-    OptCnt++;

-  }

-

-  Status = Mtftp4->GetInfo (

-                    Mtftp4,

-                    NULL,

-                    Filename,

-                    NULL,

-                    (UINT8) OptCnt,

-                    ReqOpt,

-                    &PktLen,

-                    &Packet

-                    );

-

-  if (EFI_ERROR (Status)) {

-    if (Status == EFI_TFTP_ERROR) {

-      Private->Mode.TftpErrorReceived = TRUE;

-      Private->Mode.TftpError.ErrorCode = (UINT8) Packet->Error.ErrorCode;

-      AsciiStrnCpyS (

-        Private->Mode.TftpError.ErrorString,

-        PXE_MTFTP_ERROR_STRING_LENGTH,

-        (CHAR8 *) Packet->Error.ErrorMessage,

-        PXE_MTFTP_ERROR_STRING_LENGTH - 1

-        );

-      Private->Mode.TftpError.ErrorString[PXE_MTFTP_ERROR_STRING_LENGTH - 1] = '\0';

-    }

-    goto ON_ERROR;

-  }

-

-  OptCnt = 0;

-

-  Status = Mtftp4->ParseOptions (

-                    Mtftp4,

-                    PktLen,

-                    Packet,

-                    (UINT32 *) &OptCnt,

-                    &Option

-                    );

-

-  if (EFI_ERROR (Status)) {

-

-    goto ON_ERROR;

-  }

-

-  Status = EFI_NOT_FOUND;

-

-  while (OptCnt != 0) {

-

-    if (AsciiStrnCmp ((CHAR8 *) Option[OptCnt - 1].OptionStr, "tsize", 5) == 0) {

-

-      *BufferSize = AtoU64 (Option[OptCnt - 1].ValueStr);

-      Status      = EFI_SUCCESS;

-    }

-

-    OptCnt--;

-  }

-

-  FreePool (Option);

-

-ON_ERROR:

-

-  if (Packet != NULL) {

-    FreePool (Packet);

-  }

-

-  Mtftp4->Configure (Mtftp4, NULL);

-

-  return Status;

-}

-

-

-/**

-  This function is to get data of a file by Tftp.

-

-  @param  Private        Pointer to PxeBc private data

-  @param  Config         Pointer to Mtftp configuration data

-  @param  Filename       Pointer to file name

-  @param  BlockSize      Pointer to block size

-  @param  BufferPtr      Pointer to buffer

-  @param  BufferSize     Pointer to buffer size

-  @param  DontUseBuffer  Indicate whether with a receive buffer

-

-  @retval EFI_SUCCESS        Read the data success from the special file.

-  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.

-  @retval other              Read data from file failed.

-

-**/

-EFI_STATUS

-PxeBcTftpReadFile (

-  IN PXEBC_PRIVATE_DATA         *Private,

-  IN EFI_MTFTP4_CONFIG_DATA     *Config,

-  IN UINT8                      *Filename,

-  IN UINTN                      *BlockSize,

-  IN UINT8                      *BufferPtr,

-  IN OUT UINT64                 *BufferSize,

-  IN BOOLEAN                    DontUseBuffer

-  )

-{

-  EFI_MTFTP4_PROTOCOL *Mtftp4;

-  EFI_MTFTP4_TOKEN    Token;

-  EFI_MTFTP4_OPTION   ReqOpt[1];

-  UINT32              OptCnt;

-  UINT8               OptBuf[128];

-  EFI_STATUS          Status;

-

-  Status                    = EFI_DEVICE_ERROR;

-  Mtftp4                    = Private->Mtftp4;

-  OptCnt                    = 0;

-  Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;

-

-  Status = Mtftp4->Configure (Mtftp4, Config);

-  if (EFI_ERROR (Status)) {

-

-    return Status;

-  }

-

-  if (BlockSize != NULL) {

-

-    ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];

-    ReqOpt[0].ValueStr  = OptBuf;

-    UtoA10 (*BlockSize, (CHAR8 *) ReqOpt[0].ValueStr, PXE_MTFTP_OPTBUF_MAXNUM_INDEX);

-    OptCnt++;

-  }

-

-  Token.Event         = NULL;

-  Token.OverrideData  = NULL;

-  Token.Filename      = Filename;

-  Token.ModeStr       = NULL;

-  Token.OptionCount   = OptCnt;

-  Token.OptionList    = ReqOpt;

-  Token.Context       = Private;

-

-  if (DontUseBuffer) {

-    Token.BufferSize  = 0;

-    Token.Buffer      = NULL;

-  } else {

-    Token.BufferSize  = *BufferSize;

-    Token.Buffer      = BufferPtr;

-  }

-

-  Token.CheckPacket     = PxeBcCheckPacket;

-  Token.TimeoutCallback = NULL;

-  Token.PacketNeeded    = NULL;

-

-  Status = Mtftp4->ReadFile (Mtftp4, &Token);

-

-  *BufferSize = Token.BufferSize;

-

-  Mtftp4->Configure (Mtftp4, NULL);

-

-  return Status;

-}

-

-

-/**

-  This function is put data of a file by Tftp.

-

-  @param  Private        Pointer to PxeBc private data

-  @param  Config         Pointer to Mtftp configuration data

-  @param  Filename       Pointer to file name

-  @param  Overwrite      Indicate whether with overwrite attribute

-  @param  BlockSize      Pointer to block size

-  @param  BufferPtr      Pointer to buffer

-  @param  BufferSize     Pointer to buffer size

-

-  @retval EFI_SUCCESS        Write the data success into the special file.

-  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.

-  @retval other              Write data into file failed.

-

-**/

-EFI_STATUS

-PxeBcTftpWriteFile (

-  IN PXEBC_PRIVATE_DATA         *Private,

-  IN EFI_MTFTP4_CONFIG_DATA     *Config,

-  IN UINT8                      *Filename,

-  IN BOOLEAN                    Overwrite,

-  IN UINTN                      *BlockSize,

-  IN UINT8                      *BufferPtr,

-  IN OUT UINT64                 *BufferSize

-  )

-{

-  EFI_MTFTP4_PROTOCOL *Mtftp4;

-  EFI_MTFTP4_TOKEN    Token;

-  EFI_MTFTP4_OPTION   ReqOpt[1];

-  UINT32              OptCnt;

-  UINT8               OptBuf[128];

-  EFI_STATUS          Status;

-

-  Status                    = EFI_DEVICE_ERROR;

-  Mtftp4                    = Private->Mtftp4;

-  OptCnt                    = 0;

-  Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;

-

-  Status  = Mtftp4->Configure (Mtftp4, Config);

-  if (EFI_ERROR (Status)) {

-

-    return Status;

-  }

-

-  if (BlockSize != NULL) {

-

-    ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];

-    ReqOpt[0].ValueStr  = OptBuf;

-    UtoA10 (*BlockSize, (CHAR8 *) ReqOpt[0].ValueStr, PXE_MTFTP_OPTBUF_MAXNUM_INDEX);

-    OptCnt++;

-  }

-

-  Token.Event           = NULL;

-  Token.OverrideData    = NULL;

-  Token.Filename        = Filename;

-  Token.ModeStr         = NULL;

-  Token.OptionCount     = OptCnt;

-  Token.OptionList      = ReqOpt;

-  Token.BufferSize      = *BufferSize;

-  Token.Buffer          = BufferPtr;

-  Token.CheckPacket     = PxeBcCheckPacket;

-  Token.TimeoutCallback = NULL;

-  Token.PacketNeeded    = NULL;

-

-  Status      = Mtftp4->WriteFile (Mtftp4, &Token);

-  *BufferSize = Token.BufferSize;

-

-  Mtftp4->Configure (Mtftp4, NULL);

-

-  return Status;

-}

-

-

-/**

-  This function is to get data(file) from a directory(may be a server) by Tftp.

-

-  @param  Private        Pointer to PxeBc private data.

-  @param  Config         Pointer to Mtftp configuration data.

-  @param  Filename       Pointer to file name.

-  @param  BlockSize      Pointer to block size.

-  @param  BufferPtr      Pointer to buffer.

-  @param  BufferSize     Pointer to buffer size.

-  @param  DontUseBuffer  Indicate whether with a receive buffer.

-

-  @retval EFI_SUCCES         Get the data from the file included in directory success.

-  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.

-  @retval other              Operation failed.

-

-**/

-EFI_STATUS

-PxeBcTftpReadDirectory (

-  IN PXEBC_PRIVATE_DATA            *Private,

-  IN EFI_MTFTP4_CONFIG_DATA        *Config,

-  IN UINT8                         *Filename,

-  IN UINTN                         *BlockSize,

-  IN UINT8                         *BufferPtr,

-  IN OUT UINT64                    *BufferSize,

-  IN BOOLEAN                       DontUseBuffer

-  )

-{

-  EFI_MTFTP4_PROTOCOL *Mtftp4;

-  EFI_MTFTP4_TOKEN    Token;

-  EFI_MTFTP4_OPTION   ReqOpt[1];

-  UINT32              OptCnt;

-  UINT8               OptBuf[128];

-  EFI_STATUS          Status;

-

-  Status                    = EFI_DEVICE_ERROR;

-  Mtftp4                    = Private->Mtftp4;

-  OptCnt                    = 0;

-  Config->InitialServerPort = PXEBC_BS_DOWNLOAD_PORT;

-

-  Status = Mtftp4->Configure (Mtftp4, Config);

-  if (EFI_ERROR (Status)) {

-

-    return Status;

-  }

-

-  if (BlockSize != NULL) {

-

-    ReqOpt[0].OptionStr = (UINT8*) mMtftpOptions[PXE_MTFTP_OPTION_BLKSIZE_INDEX];

-    ReqOpt[0].ValueStr  = OptBuf;

-    UtoA10 (*BlockSize, (CHAR8 *) ReqOpt[0].ValueStr, PXE_MTFTP_OPTBUF_MAXNUM_INDEX);

-    OptCnt++;

-  }

-

-  Token.Event         = NULL;

-  Token.OverrideData  = NULL;

-  Token.Filename      = Filename;

-  Token.ModeStr       = NULL;

-  Token.OptionCount   = OptCnt;

-  Token.OptionList    = ReqOpt;

-  Token.Context       = Private;

-

-  if (DontUseBuffer) {

-    Token.BufferSize  = 0;

-    Token.Buffer      = NULL;

-  } else {

-    Token.BufferSize  = *BufferSize;

-    Token.Buffer      = BufferPtr;

-  }

-

-  Token.CheckPacket     = PxeBcCheckPacket;

-  Token.TimeoutCallback = NULL;

-  Token.PacketNeeded    = NULL;

-

-  Status = Mtftp4->ReadDirectory (Mtftp4, &Token);

-

-  *BufferSize = Token.BufferSize;

-

-  Mtftp4->Configure (Mtftp4, NULL);

-

-  return Status;

-}

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcMtftp.h b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcMtftp.h
deleted file mode 100644
index 903dd4fbb6..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcMtftp.h
+++ /dev/null
@@ -1,137 +0,0 @@
-/** @file

-  Mtftp routines for PxeBc.

-

-Copyright (c) 2007 - 2018, 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

-which 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.

-

-**/

-

-#ifndef __EFI_PXEBC_MTFTP_H__

-#define __EFI_PXEBC_MTFTP_H__

-

-#define PXE_MTFTP_OPTION_BLKSIZE_INDEX   0

-#define PXE_MTFTP_OPTION_TIMEOUT_INDEX   1

-#define PXE_MTFTP_OPTION_TSIZE_INDEX     2

-#define PXE_MTFTP_OPTION_MULTICAST_INDEX 3

-#define PXE_MTFTP_OPTION_MAXIMUM_INDEX   4

-

-#define PXE_MTFTP_ERROR_STRING_LENGTH    127

-#define PXE_MTFTP_OPTBUF_MAXNUM_INDEX    128

-

-

-/**

-  This function is to get size of a file by Tftp.

-

-  @param  Private        Pointer to PxeBc private data

-  @param  Config         Pointer to Mtftp configuration data

-  @param  Filename       Pointer to file name

-  @param  BlockSize      Pointer to block size

-  @param  BufferSize     Pointer to buffer size

-

-  @retval EFI_SUCCESS        Get the size of file success

-  @retval EFI_NOT_FOUND      Parse the tftp ptions failed.

-  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.

-  @retval Other              Has not get the size of the file.

-

-**/

-EFI_STATUS

-PxeBcTftpGetFileSize (

-  IN PXEBC_PRIVATE_DATA         *Private,

-  IN EFI_MTFTP4_CONFIG_DATA     *Config,

-  IN UINT8                      *Filename,

-  IN UINTN                      *BlockSize,

-  IN OUT UINT64                 *BufferSize

-  );

-

-

-/**

-  This function is to get data of a file by Tftp.

-

-  @param  Private        Pointer to PxeBc private data

-  @param  Config         Pointer to Mtftp configuration data

-  @param  Filename       Pointer to file name

-  @param  BlockSize      Pointer to block size

-  @param  BufferPtr      Pointer to buffer

-  @param  BufferSize     Pointer to buffer size

-  @param  DontUseBuffer  Indicate whether with a receive buffer

-

-  @retval EFI_SUCCESS        Read the data success from the special file.

-  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.

-  @retval other              Read data from file failed.

-

-**/

-EFI_STATUS

-PxeBcTftpReadFile (

-  IN PXEBC_PRIVATE_DATA         *Private,

-  IN EFI_MTFTP4_CONFIG_DATA     *Config,

-  IN UINT8                      *Filename,

-  IN UINTN                      *BlockSize,

-  IN UINT8                      *BufferPtr,

-  IN OUT UINT64                 *BufferSize,

-  IN BOOLEAN                    DontUseBuffer

-  );

-

-

-/**

-  This function is put data of a file by Tftp.

-

-  @param  Private        Pointer to PxeBc private data

-  @param  Config         Pointer to Mtftp configuration data

-  @param  Filename       Pointer to file name

-  @param  Overwrite      Indicate whether with overwrite attribute

-  @param  BlockSize      Pointer to block size

-  @param  BufferPtr      Pointer to buffer

-  @param  BufferSize     Pointer to buffer size

-

-  @retval EFI_SUCCESS        Write the data success into the special file.

-  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.

-  @retval other              Write data into file failed.

-

-**/

-EFI_STATUS

-PxeBcTftpWriteFile (

-  IN PXEBC_PRIVATE_DATA         *Private,

-  IN EFI_MTFTP4_CONFIG_DATA     *Config,

-  IN UINT8                      *Filename,

-  IN BOOLEAN                    Overwrite,

-  IN UINTN                      *BlockSize,

-  IN UINT8                      *BufferPtr,

-  IN OUT UINT64                 *BufferSize

-  );

-

-

-/**

-  This function is to get data(file) from a directory(may be a server) by Tftp.

-

-  @param  Private        Pointer to PxeBc private data.

-  @param  Config         Pointer to Mtftp configuration data.

-  @param  Filename       Pointer to file name.

-  @param  BlockSize      Pointer to block size.

-  @param  BufferPtr      Pointer to buffer.

-  @param  BufferSize     Pointer to buffer size.

-  @param  DontUseBuffer  Indicate whether with a receive buffer.

-

-  @retval EFI_SUCCES         Get the data from the file included in directory success.

-  @retval EFI_DEVICE_ERROR   The network device encountered an error during this operation.

-  @retval other              Operation failed.

-

-**/

-EFI_STATUS

-PxeBcTftpReadDirectory (

-  IN PXEBC_PRIVATE_DATA            *Private,

-  IN EFI_MTFTP4_CONFIG_DATA        *Config,

-  IN UINT8                         *Filename,

-  IN UINTN                         *BlockSize,

-  IN UINT8                         *BufferPtr,

-  IN OUT UINT64                    *BufferSize,

-  IN BOOLEAN                       DontUseBuffer

-  );

-

-#endif

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcSupport.c b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcSupport.c
deleted file mode 100644
index 1401ca5ec2..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcSupport.c
+++ /dev/null
@@ -1,221 +0,0 @@
-/** @file

-  Support routines for PxeBc.

-

-Copyright (c) 2007 - 2018, 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

-which 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 "PxeBcImpl.h"

-

-

-/**

-  The common notify function associated with various PxeBc events.

-

-  @param  Event     The event signaled.

-  @param  Context   The context.

-

-**/

-VOID

-EFIAPI

-PxeBcCommonNotify (

-  IN EFI_EVENT           Event,

-  IN VOID                *Context

-  )

-{

-  *((BOOLEAN *) Context) = TRUE;

-}

-

-

-/**

-  This function initialize(or configure) the Udp4Write instance.

-

-  @param  Udp4       Pointer to the EFI_UDP4_PROTOCOL instance.

-  @param  StationIp  Pointer to the station ip address.

-  @param  SubnetMask Pointer to the subnetmask of the station ip address.

-  @param  Gateway    Pointer to the gateway ip address.

-  @param  SrcPort    Pointer to the srouce port of the station.

-  @param  Ttl        The time to live field of the IP header.

-  @param  ToS        The type of service field of the IP header.

-

-  @retval EFI_SUCCESS           The configuration settings were set, changed, or reset successfully.

-  @retval EFI_NO_MAPPING        When using a default address, configuration (DHCP, BOOTP,

-                                RARP, etc.) is not finished yet.

-  @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:

-  @retval EFI_ALREADY_STARTED   The EFI UDPv4 Protocol instance is already started/configured

-                                and must be stopped/reset before it can be reconfigured.

-  @retval EFI_ACCESS_DENIED     UdpConfigData. AllowDuplicatePort is FALSE

-                                and UdpConfigData.StationPort is already used by

-                                other instance.

-  @retval EFI_OUT_OF_RESOURCES  The EFI UDPv4 Protocol driver cannot allocate memory for this

-                                EFI UDPv4 Protocol instance.

-  @retval EFI_DEVICE_ERROR      An unexpected network or system error occurred and this instance

-                                was not opened.

-  @retval Others                Please examine the function Udp4->Routes(Udp4, FALSE, &mZeroIp4Addr, &mZeroIp4Addr, Gateway) returns.

-

-**/

-EFI_STATUS

-PxeBcConfigureUdpWriteInstance (

-  IN EFI_UDP4_PROTOCOL  *Udp4,

-  IN EFI_IPv4_ADDRESS   *StationIp,

-  IN EFI_IPv4_ADDRESS   *SubnetMask,

-  IN EFI_IPv4_ADDRESS   *Gateway,

-  IN OUT UINT16         *SrcPort,

-  IN     UINT8          Ttl,

-  IN     UINT8          ToS

-  )

-{

-  EFI_UDP4_CONFIG_DATA  Udp4CfgData;

-  EFI_STATUS            Status;

-

-  ZeroMem (&Udp4CfgData, sizeof (Udp4CfgData));

-

-  Udp4CfgData.ReceiveTimeout = PXEBC_DEFAULT_LIFETIME;

-  Udp4CfgData.TypeOfService  = ToS;

-  Udp4CfgData.TimeToLive     = Ttl;

-  Udp4CfgData.AllowDuplicatePort = TRUE;

-

-  CopyMem (&Udp4CfgData.StationAddress, StationIp, sizeof (*StationIp));

-  CopyMem (&Udp4CfgData.SubnetMask, SubnetMask, sizeof (*SubnetMask));

-

-  Udp4CfgData.StationPort    = *SrcPort;

-

-  //

-  // Reset the instance.

-  //

-  Udp4->Configure (Udp4, NULL);

-

-  Status = Udp4->Configure (Udp4, &Udp4CfgData);

-  if (!EFI_ERROR (Status) && (Gateway->Addr[0] != 0)) {

-    //

-    // basic configuration OK, need to add the default route entry

-    //

-    Status = Udp4->Routes (Udp4, FALSE, &mZeroIp4Addr, &mZeroIp4Addr, Gateway);

-    if (EFI_ERROR (Status)) {

-      //

-      // roll back

-      //

-      Udp4->Configure (Udp4, NULL);

-    }

-  }

-

-  if (!EFI_ERROR (Status) && (*SrcPort == 0)) {

-    Udp4->GetModeData (Udp4, &Udp4CfgData, NULL, NULL, NULL);

-    *SrcPort = Udp4CfgData.StationPort;

-  }

-

-  return Status;

-}

-

-/**

-  This function is to display the IPv4 address.

-

-  @param[in]  Ip        The pointer to the IPv4 address.

-

-**/

-VOID

-PxeBcShowIp4Addr (

-  IN EFI_IPv4_ADDRESS   *Ip

-  )

-{

-  UINTN                 Index;

-

-  for (Index = 0; Index < 4; Index++) {

-    AsciiPrint ("%d", Ip->Addr[Index]);

-    if (Index < 3) {

-      AsciiPrint (".");

-    }

-  }

-}

-

-/**

-  Convert number to ASCII value.

-

-  @param  Number              Numeric value to convert to decimal ASCII value.

-  @param  Buffer              Buffer to place ASCII version of the Number.

-  @param  Length              Length of Buffer.

-

-**/

-VOID

-CvtNum (

-  IN UINTN  Number,

-  IN UINT8  *Buffer,

-  IN UINTN   Length

-  )

-{

-  UINTN Remainder;

-

-  for (; Length > 0; Length--) {

-    Remainder = Number % 10;

-    Number /= 10;

-    Buffer[Length - 1] = (UINT8) ('0' + Remainder);

-  }

-}

-

-

-/**

-  Convert unsigned int number to decimal number.

-

-  @param      Number         The unsigned int number will be converted.

-  @param      Buffer         Pointer to the buffer to store the decimal number after transform.

-  @param[in]  BufferSize     The maxsize of the buffer.

-

-  @return the length of the number after transform.

-

-**/

-UINTN

-UtoA10 (

-  IN UINTN Number,

-  IN CHAR8 *Buffer,

-  IN UINTN BufferSize

-  )

-{

-  UINTN Index;

-  CHAR8 TempStr[64];

-

-  Index           = 63;

-  TempStr[Index]  = 0;

-

-  do {

-    Index--;

-    TempStr[Index]  = (CHAR8) ('0' + (Number % 10));

-    Number          = Number / 10;

-  } while (Number != 0);

-

-  AsciiStrCpyS (Buffer, BufferSize, &TempStr[Index]);

-

-  return AsciiStrLen (Buffer);

-}

-

-

-/**

-  Convert ASCII numeric string to a UINTN value.

-

-  @param  Buffer  Pointer to the 8-byte unsigned int value.

-

-  @return UINTN value of the ASCII string.

-

-**/

-UINT64

-AtoU64 (

-  IN UINT8 *Buffer

-  )

-{

-  UINT64  Value;

-  UINT8   Character;

-

-  Value = 0;

-  while ((Character = *Buffer++) != '\0') {

-    Value = MultU64x32 (Value, 10) + (Character - '0');

-  }

-

-  return Value;

-}

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcSupport.h b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcSupport.h
deleted file mode 100644
index a28c9740c1..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/PxeBcSupport.h
+++ /dev/null
@@ -1,134 +0,0 @@
-/** @file

-  Support routines for PxeBc.

-Copyright (c) 2007 - 2018, 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

-which 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.

-

-**/

-

-#ifndef __EFI_PXEBC_SUPPORT_H__

-#define __EFI_PXEBC_SUPPORT_H__

-

-

-/**

-  The common notify function associated with various PxeBc events.

-

-  @param  Event     The event signaled.

-  @param  Context   The context.

-

-**/

-VOID

-EFIAPI

-PxeBcCommonNotify (

-  IN EFI_EVENT           Event,

-  IN VOID                *Context

-  );

-

-

-/**

-  This function initialize(or configure) the Udp4Write instance.

-

-  @param  Udp4       Pointer to the EFI_UDP4_PROTOCOL instance.

-  @param  StationIp  Pointer to the station ip address.

-  @param  SubnetMask Pointer to the subnetmask of the station ip address.

-  @param  Gateway    Pointer to the gateway ip address.

-  @param  SrcPort    Pointer to the srouce port of the station.

-  @param  Ttl        The time to live field of the IP header.

-  @param  ToS        The type of service field of the IP header.

-

-  @retval EFI_SUCCESS           The configuration settings were set, changed, or reset successfully.

-  @retval EFI_NO_MAPPING        When using a default address, configuration (DHCP, BOOTP,

-                                RARP, etc.) is not finished yet.

-  @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE:

-  @retval EFI_ALREADY_STARTED   The EFI UDPv4 Protocol instance is already started/configured

-                                and must be stopped/reset before it can be reconfigured.

-  @retval EFI_ACCESS_DENIED     UdpConfigData. AllowDuplicatePort is FALSE

-                                and UdpConfigData.StationPort is already used by

-                                other instance.

-  @retval EFI_OUT_OF_RESOURCES  The EFI UDPv4 Protocol driver cannot allocate memory for this

-                                EFI UDPv4 Protocol instance.

-  @retval EFI_DEVICE_ERROR      An unexpected network or system error occurred and this instance

-                                was not opened.

-  @retval Others                Please examine the function Udp4->Routes(Udp4, FALSE, &mZeroIp4Addr, &mZeroIp4Addr, Gateway) returns.

-

-**/

-EFI_STATUS

-PxeBcConfigureUdpWriteInstance (

-  IN EFI_UDP4_PROTOCOL  *Udp4,

-  IN EFI_IPv4_ADDRESS   *StationIp,

-  IN EFI_IPv4_ADDRESS   *SubnetMask,

-  IN EFI_IPv4_ADDRESS   *Gateway,

-  IN OUT UINT16         *SrcPort,

-  IN     UINT8          Ttl,

-  IN     UINT8          ToS

-  );

-

-

-/**

-  This function is to display the IPv4 address.

-

-  @param[in]  Ip        The pointer to the IPv4 address.

-

-**/

-VOID

-PxeBcShowIp4Addr (

-  IN EFI_IPv4_ADDRESS   *Ip

-  );

-

-

-/**

-  Convert number to ASCII value.

-

-  @param  Number              Numeric value to convert to decimal ASCII value.

-  @param  Buffer              Buffer to place ASCII version of the Number.

-  @param  Length              Length of Buffer.

-

-**/

-VOID

-CvtNum (

-  IN UINTN  Number,

-  IN UINT8  *Buffer,

-  IN UINTN   Length

-  );

-

-

-/**

-  Convert unsigned int number to decimal number.

-

-  @param      Number         The unsigned int number will be converted.

-  @param      Buffer         Pointer to the buffer to store the decimal number after transform.

-  @param[in]  BufferSize     The maxsize of the buffer.

-

-  @return the length of the number after transform.

-

-**/

-UINTN

-UtoA10 (

-  IN UINTN Number,

-  IN CHAR8 *Buffer,

-  IN UINTN BufferSize

-

-  );

-

-

-/**

-  Convert ASCII numeric string to a UINTN value.

-

-  @param  Buffer  Pointer to the 8-byte unsigned int value.

-

-  @return UINTN value of the ASCII string.

-

-**/

-UINT64

-AtoU64 (

-  IN UINT8 *Buffer

-  );

-

-

-#endif

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxe4BcDxe.uni b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxe4BcDxe.uni
deleted file mode 100644
index e97c3cadd9..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxe4BcDxe.uni
+++ /dev/null
@@ -1,25 +0,0 @@
-// /** @file

-// This module produces EFI Preboot Execution Environment (PXE) Base Code Protocol.

-//

-// This module produces EFI PXE Base Code Protocol upon EFI MMP Protocl and IPv4

-// network stack, used to control PXE-compatible devices. It produces EFI Load File

-// Protocol to provide one clean way to otain control from the boot manager if the

-// boot patch is from the remote device.

-//

-// Copyright (c) 2007 - 2018, 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

-// which 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.

-//

-// **/

-

-

-#string STR_MODULE_ABSTRACT             #language en-US "Produces EFI Preboot Execution Environment (PXE) Base Code Protocol"

-

-#string STR_MODULE_DESCRIPTION          #language en-US "This module produces EFI PXE Base Code Protocol upon the EFI MMP Protocol and the IPv4 network stack, and is used to control PXE-compatible devices. It produces the EFI Load File Protocol to provide a clean method to obtain control from the boot manager if the boot patch is from the remote device."

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxe4BcDxeExtra.uni b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxe4BcDxeExtra.uni
deleted file mode 100644
index 2c1bda1a8b..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxe4BcDxeExtra.uni
+++ /dev/null
@@ -1,20 +0,0 @@
-// /** @file

-// UefiPxe4BcDxe Localized Strings and Content

-//

-// Copyright (c) 2013 - 2018, 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

-// which 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.

-//

-// **/

-

-#string STR_PROPERTIES_MODULE_NAME

-#language en-US

-"UEFI PXE Base Code DXE Driver"

-

-

diff --git a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxeBcDxe.inf b/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxeBcDxe.inf
deleted file mode 100644
index 0424019929..0000000000
--- a/MdeModulePkg/Universal/Network/UefiPxeBcDxe/UefiPxeBcDxe.inf
+++ /dev/null
@@ -1,102 +0,0 @@
-## @file

-#  This module produces EFI Preboot Execution Environment (PXE) Base Code Protocol.

-#

-#  This module produces EFI PXE Base Code Protocol upon EFI MMP Protocl and IPv4

-#  network stack, used to control PXE-compatible devices. It produces EFI Load File

-#  Protocol to provide one clean way to otain control from the boot manager if the

-#  boot patch is from the remote device. This driver only supports IPv4 network stack.

-#

-#  Notes:

-#  1) This driver can't co-work with the UefiPxeBcDxe driver in NetworkPkg.

-#  2) This driver might have some issues that have been fixed in the UefiPxeBcDxe

-#     driver in NetworkPkg.

-#  3) This driver supports fewer features than the UefiPxeBcDxe driver in NetworkPkg

-#     (e.g. IPv6, MTFTP windowsize).

-#  4) UefiPxeBcDxe driver in NetworkPkg is recommended for use instead of this one even

-#     though both of them can be used.

-#

-#  Copyright (c) 2007 - 2018, 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

-#  which 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.

-#

-#

-##

-

-

-[Defines]

-  INF_VERSION                    = 0x00010005

-  BASE_NAME                      = UefiPxe4BcDxe

-  MODULE_UNI_FILE                = UefiPxe4BcDxe.uni

-  FILE_GUID                      = 3B1DEAB5-C75D-442e-9238-8E2FFB62B0BB

-  MODULE_TYPE                    = UEFI_DRIVER

-  VERSION_STRING                 = 1.0

-  ENTRY_POINT                    = PxeBcDriverEntryPoint

-  UNLOAD_IMAGE                   = NetLibDefaultUnload

-

-#

-# The following information is for reference only and not required by the build tools.

-#

-#  VALID_ARCHITECTURES           = IA32 X64

-#

-#  DRIVER_BINDING                =  gPxeBcDriverBinding

-#  COMPONENT_NAME                =  gPxeBcComponentName

-#  COMPONENT_NAME2               =  gPxeBcComponentName2

-#

-

-[Sources]

-  PxeBcMtftp.c

-  PxeBcSupport.h

-  PxeBcSupport.c

-  PxeBcDriver.c

-  PxeBcDhcp.h

-  ComponentName.c

-  PxeBcImpl.c

-  PxeBcImpl.h

-  PxeBcDhcp.c

-  PxeBcMtftp.h

-  PxeBcDriver.h

-

-

-[Packages]

-  MdePkg/MdePkg.dec

-  MdeModulePkg/MdeModulePkg.dec

-

-[LibraryClasses]

-  BaseLib

-  UefiLib

-  UefiBootServicesTableLib

-  UefiDriverEntryPoint

-  BaseMemoryLib

-  MemoryAllocationLib

-  DebugLib

-  NetLib

-  DpcLib

-  PcdLib

-

-[Protocols]

-  gEfiPxeBaseCodeCallbackProtocolGuid              ## SOMETIMES_PRODUCES

-  gEfiPxeBaseCodeProtocolGuid                      ## BY_START

-  gEfiLoadFileProtocolGuid                         ## BY_START

-  gEfiNetworkInterfaceIdentifierProtocolGuid_31    ## SOMETIMES_CONSUMES

-  gEfiArpServiceBindingProtocolGuid                ## TO_START

-  gEfiArpProtocolGuid                              ## TO_START

-  gEfiMtftp4ServiceBindingProtocolGuid             ## TO_START

-  gEfiMtftp4ProtocolGuid                           ## TO_START

-  gEfiUdp4ServiceBindingProtocolGuid               ## TO_START

-  gEfiUdp4ProtocolGuid                             ## TO_START

-  gEfiDhcp4ServiceBindingProtocolGuid              ## TO_START

-  gEfiDhcp4ProtocolGuid                            ## TO_START

-  gEfiIp4ServiceBindingProtocolGuid                ## TO_START

-  gEfiIp4ProtocolGuid                              ## TO_START

-  gEfiIp4Config2ProtocolGuid                       ## TO_START

-

-[Pcd]

-  gEfiMdeModulePkgTokenSpaceGuid.PcdTftpBlockSize  ## SOMETIMES_CONSUMES

-

-[UserExtensions.TianoCore."ExtraFiles"]

-  UefiPxe4BcDxeExtra.uni