NetworkPkg/TlsDxe/TlsImpl.h - third_party/edk2 - Git at Google

 /** @file
   Header file of Miscellaneous Routines for TlsDxe driver.

 Copyright (c) 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_TLS_IMPL_H__
 #define __EFI_TLS_IMPL_H__

 //
 // Libraries
 //
 #include <Library/UefiBootServicesTableLib.h>
 #include <Library/MemoryAllocationLib.h>
 #include <Library/BaseMemoryLib.h>
 #include <Library/BaseLib.h>
 #include <Library/UefiLib.h>
 #include <Library/DebugLib.h>
 #include <Library/NetLib.h>
 #include <Library/BaseCryptLib.h>
 #include <Library/TlsLib.h>

 //
 // Consumed Protocols
 //
 #include <Protocol/Tls.h>
 #include <Protocol/TlsConfig.h>

 #include <IndustryStandard/Tls1.h>

 #include "TlsDriver.h"

 //
 // Protocol instances
 //
 extern EFI_SERVICE_BINDING_PROTOCOL    mTlsServiceBinding;
 extern EFI_TLS_PROTOCOL                mTlsProtocol;
 extern EFI_TLS_CONFIGURATION_PROTOCOL  mTlsConfigurationProtocol;

 #define RECORD_HEADER_LEN 5 /// ContentType(1) + Version(2) + Length(2)

 #define MAX_BUFFER_SIZE   32768

 /**
   Encrypt the message listed in fragment.

   @param[in]       TlsInstance    The pointer to the TLS instance.
   @param[in, out]  FragmentTable  Pointer to a list of fragment.
                                   On input these fragments contain the TLS header and
                                   plain text TLS payload;
                                   On output these fragments contain the TLS header and
                                   cipher text TLS payload.
   @param[in]       FragmentCount  Number of fragment.

   @retval EFI_SUCCESS             The operation completed successfully.
   @retval EFI_OUT_OF_RESOURCES    Can't allocate memory resources.
   @retval EFI_ABORTED             TLS session state is incorrect.
   @retval Others                  Other errors as indicated.
 **/
 EFI_STATUS
 TlsEncryptPacket (
   IN     TLS_INSTANCE                  *TlsInstance,
   IN OUT EFI_TLS_FRAGMENT_DATA         **FragmentTable,
   IN     UINT32                        *FragmentCount
   );

 /**
   Decrypt the message listed in fragment.

   @param[in]       TlsInstance    The pointer to the TLS instance.
   @param[in, out]  FragmentTable  Pointer to a list of fragment.
                                   On input these fragments contain the TLS header and
                                   cipher text TLS payload;
                                   On output these fragments contain the TLS header and
                                   plain text TLS payload.
   @param[in]       FragmentCount  Number of fragment.

   @retval EFI_SUCCESS             The operation completed successfully.
   @retval EFI_OUT_OF_RESOURCES    Can't allocate memory resources.
   @retval EFI_ABORTED             TLS session state is incorrect.
   @retval Others                  Other errors as indicated.
 **/
 EFI_STATUS
 TlsDecryptPacket (
   IN     TLS_INSTANCE                  *TlsInstance,
   IN OUT EFI_TLS_FRAGMENT_DATA         **FragmentTable,
   IN     UINT32                        *FragmentCount
   );

 /**
   Set TLS session data.

   The SetSessionData() function set data for a new TLS session. All session data should
   be set before BuildResponsePacket() invoked.

   @param[in]  This                Pointer to the EFI_TLS_PROTOCOL instance.
   @param[in]  DataType            TLS session data type.
   @param[in]  Data                Pointer to session data.
   @param[in]  DataSize            Total size of session data.

   @retval EFI_SUCCESS             The TLS session data is set successfully.
   @retval EFI_INVALID_PARAMETER   One or more of the following conditions is TRUE:
                                   This is NULL.
                                   Data is NULL.
                                   DataSize is 0.
   @retval EFI_UNSUPPORTED         The DataType is unsupported.
   @retval EFI_ACCESS_DENIED       If the DataType is one of below:
                                   EfiTlsClientRandom
                                   EfiTlsServerRandom
                                   EfiTlsKeyMaterial
   @retval EFI_NOT_READY           Current TLS session state is NOT
                                   EfiTlsSessionStateNotStarted.
   @retval EFI_OUT_OF_RESOURCES    Required system resources could not be allocated.
 **/
 EFI_STATUS
 EFIAPI
 TlsSetSessionData (
   IN     EFI_TLS_PROTOCOL              *This,
   IN     EFI_TLS_SESSION_DATA_TYPE     DataType,
   IN     VOID                          *Data,
   IN     UINTN                         DataSize
   );

 /**
   Get TLS session data.

   The GetSessionData() function return the TLS session information.

   @param[in]       This           Pointer to the EFI_TLS_PROTOCOL instance.
   @param[in]       DataType       TLS session data type.
   @param[in, out]  Data           Pointer to session data.
   @param[in, out]  DataSize       Total size of session data. On input, it means
                                   the size of Data buffer. On output, it means the size
                                   of copied Data buffer if EFI_SUCCESS, and means the
                                   size of desired Data buffer if EFI_BUFFER_TOO_SMALL.

   @retval EFI_SUCCESS             The TLS session data is got successfully.
   @retval EFI_INVALID_PARAMETER   One or more of the following conditions is TRUE:
                                   This is NULL.
                                   DataSize is NULL.
                                   Data is NULL if *DataSize is not zero.
   @retval EFI_UNSUPPORTED         The DataType is unsupported.
   @retval EFI_NOT_FOUND           The TLS session data is not found.
   @retval EFI_NOT_READY           The DataType is not ready in current session state.
   @retval EFI_BUFFER_TOO_SMALL    The buffer is too small to hold the data.
 **/
 EFI_STATUS
 EFIAPI
 TlsGetSessionData (
   IN     EFI_TLS_PROTOCOL              *This,
   IN     EFI_TLS_SESSION_DATA_TYPE     DataType,
   IN OUT VOID                          *Data,  OPTIONAL
   IN OUT UINTN                         *DataSize
   );

 /**
   Build response packet according to TLS state machine. This function is only valid for
   alert, handshake and change_cipher_spec content type.

   The BuildResponsePacket() function builds TLS response packet in response to the TLS
   request packet specified by RequestBuffer and RequestSize. If RequestBuffer is NULL and
   RequestSize is 0, and TLS session status is EfiTlsSessionNotStarted, the TLS session
   will be initiated and the response packet needs to be ClientHello. If RequestBuffer is
   NULL and RequestSize is 0, and TLS session status is EfiTlsSessionClosing, the TLS
   session will be closed and response packet needs to be CloseNotify. If RequestBuffer is
   NULL and RequestSize is 0, and TLS session status is EfiTlsSessionError, the TLS
   session has errors and the response packet needs to be Alert message based on error
   type.

   @param[in]       This           Pointer to the EFI_TLS_PROTOCOL instance.
   @param[in]       RequestBuffer  Pointer to the most recently received TLS packet. NULL
                                   means TLS need initiate the TLS session and response
                                   packet need to be ClientHello.
   @param[in]       RequestSize    Packet size in bytes for the most recently received TLS
                                   packet. 0 is only valid when RequestBuffer is NULL.
   @param[out]      Buffer         Pointer to the buffer to hold the built packet.
   @param[in, out]  BufferSize     Pointer to the buffer size in bytes. On input, it is
                                   the buffer size provided by the caller. On output, it
                                   is the buffer size in fact needed to contain the
                                   packet.

   @retval EFI_SUCCESS             The required TLS packet is built successfully.
   @retval EFI_INVALID_PARAMETER   One or more of the following conditions is TRUE:
                                   This is NULL.
                                   RequestBuffer is NULL but RequestSize is NOT 0.
                                   RequestSize is 0 but RequestBuffer is NOT NULL.
                                   BufferSize is NULL.
                                   Buffer is NULL if *BufferSize is not zero.
   @retval EFI_BUFFER_TOO_SMALL    BufferSize is too small to hold the response packet.
   @retval EFI_NOT_READY           Current TLS session state is NOT ready to build
                                   ResponsePacket.
   @retval EFI_ABORTED             Something wrong build response packet.
 **/
 EFI_STATUS
 EFIAPI
 TlsBuildResponsePacket (
   IN     EFI_TLS_PROTOCOL              *This,
   IN     UINT8                         *RequestBuffer, OPTIONAL
   IN     UINTN                         RequestSize, OPTIONAL
      OUT UINT8                         *Buffer, OPTIONAL
   IN OUT UINTN                         *BufferSize
   );

 /**
   Decrypt or encrypt TLS packet during session. This function is only valid after
   session connected and for application_data content type.

   The ProcessPacket () function process each inbound or outbound TLS APP packet.

   @param[in]       This           Pointer to the EFI_TLS_PROTOCOL instance.
   @param[in, out]  FragmentTable  Pointer to a list of fragment. The caller will take
                                   responsible to handle the original FragmentTable while
                                   it may be reallocated in TLS driver. If CryptMode is
                                   EfiTlsEncrypt, on input these fragments contain the TLS
                                   header and plain text TLS APP payload; on output these
                                   fragments contain the TLS header and cipher text TLS
                                   APP payload. If CryptMode is EfiTlsDecrypt, on input
                                   these fragments contain the TLS header and cipher text
                                   TLS APP payload; on output these fragments contain the
                                   TLS header and plain text TLS APP payload.
   @param[in]       FragmentCount  Number of fragment.
   @param[in]       CryptMode      Crypt mode.

   @retval EFI_SUCCESS             The operation completed successfully.
   @retval EFI_INVALID_PARAMETER   One or more of the following conditions is TRUE:
                                   This is NULL.
                                   FragmentTable is NULL.
                                   FragmentCount is NULL.
                                   CryptoMode is invalid.
   @retval EFI_NOT_READY           Current TLS session state is NOT
                                   EfiTlsSessionDataTransferring.
   @retval EFI_ABORTED             Something wrong decryption the message. TLS session
                                   status will become EfiTlsSessionError. The caller need
                                   call BuildResponsePacket() to generate Error Alert
                                   message and send it out.
   @retval EFI_OUT_OF_RESOURCES    No enough resource to finish the operation.
 **/
 EFI_STATUS
 EFIAPI
 TlsProcessPacket (
   IN     EFI_TLS_PROTOCOL              *This,
   IN OUT EFI_TLS_FRAGMENT_DATA         **FragmentTable,
   IN     UINT32                        *FragmentCount,
   IN     EFI_TLS_CRYPT_MODE            CryptMode
   );

 /**
   Set TLS configuration data.

   The SetData() function sets TLS configuration to non-volatile storage or volatile
   storage.

   @param[in]  This                Pointer to the EFI_TLS_CONFIGURATION_PROTOCOL instance.
   @param[in]  DataType            Configuration data type.
   @param[in]  Data                Pointer to configuration data.
   @param[in]  DataSize            Total size of configuration data.

   @retval EFI_SUCCESS             The TLS configuration data is set successfully.
   @retval EFI_INVALID_PARAMETER   One or more of the following conditions is TRUE:
                                   This is NULL.
                                   Data is NULL.
                                   DataSize is 0.
   @retval EFI_UNSUPPORTED         The DataType is unsupported.
   @retval EFI_OUT_OF_RESOURCES    Required system resources could not be allocated.
 **/
 EFI_STATUS
 EFIAPI
 TlsConfigurationSetData (
   IN     EFI_TLS_CONFIGURATION_PROTOCOL  *This,
   IN     EFI_TLS_CONFIG_DATA_TYPE        DataType,
   IN     VOID                            *Data,
   IN     UINTN                           DataSize
   );

 /**
   Get TLS configuration data.

   The GetData() function gets TLS configuration.

   @param[in]       This           Pointer to the EFI_TLS_CONFIGURATION_PROTOCOL instance.
   @param[in]       DataType       Configuration data type.
   @param[in, out]  Data           Pointer to configuration data.
   @param[in, out]  DataSize       Total size of configuration data. On input, it means
                                   the size of Data buffer. On output, it means the size
                                   of copied Data buffer if EFI_SUCCESS, and means the
                                   size of desired Data buffer if EFI_BUFFER_TOO_SMALL.

   @retval EFI_SUCCESS             The TLS configuration data is got successfully.
   @retval EFI_INVALID_PARAMETER   One or more of the following conditions is TRUE:
                                   This is NULL.
                                   DataSize is NULL.
                                   Data is NULL if *DataSize is not zero.
   @retval EFI_UNSUPPORTED         The DataType is unsupported.
   @retval EFI_NOT_FOUND           The TLS configuration data is not found.
   @retval EFI_BUFFER_TOO_SMALL    The buffer is too small to hold the data.
 **/
 EFI_STATUS
 EFIAPI
 TlsConfigurationGetData (
   IN     EFI_TLS_CONFIGURATION_PROTOCOL  *This,
   IN     EFI_TLS_CONFIG_DATA_TYPE        DataType,
   IN OUT VOID                            *Data, OPTIONAL
   IN OUT UINTN                           *DataSize
   );

 #endif
	/** @file
	Header file of Miscellaneous Routines for TlsDxe driver.

	Copyright (c) 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_TLS_IMPL_H__
	#define __EFI_TLS_IMPL_H__

	//
	// Libraries
	//
	#include <Library/UefiBootServicesTableLib.h>
	#include <Library/MemoryAllocationLib.h>
	#include <Library/BaseMemoryLib.h>
	#include <Library/BaseLib.h>
	#include <Library/UefiLib.h>
	#include <Library/DebugLib.h>
	#include <Library/NetLib.h>
	#include <Library/BaseCryptLib.h>
	#include <Library/TlsLib.h>

	//
	// Consumed Protocols
	//
	#include <Protocol/Tls.h>
	#include <Protocol/TlsConfig.h>

	#include <IndustryStandard/Tls1.h>

	#include "TlsDriver.h"

	//
	// Protocol instances
	//
	extern EFI_SERVICE_BINDING_PROTOCOL mTlsServiceBinding;
	extern EFI_TLS_PROTOCOL mTlsProtocol;
	extern EFI_TLS_CONFIGURATION_PROTOCOL mTlsConfigurationProtocol;

	#define RECORD_HEADER_LEN 5 /// ContentType(1) + Version(2) + Length(2)

	#define MAX_BUFFER_SIZE 32768

	/**
	Encrypt the message listed in fragment.

	@param[in] TlsInstance The pointer to the TLS instance.
	@param[in, out] FragmentTable Pointer to a list of fragment.
	On input these fragments contain the TLS header and
	plain text TLS payload;
	On output these fragments contain the TLS header and
	cipher text TLS payload.
	@param[in] FragmentCount Number of fragment.

	@retval EFI_SUCCESS The operation completed successfully.
	@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
	@retval EFI_ABORTED TLS session state is incorrect.
	@retval Others Other errors as indicated.
	**/
	EFI_STATUS
	TlsEncryptPacket (
	IN TLS_INSTANCE *TlsInstance,
	IN OUT EFI_TLS_FRAGMENT_DATA **FragmentTable,
	IN UINT32 *FragmentCount
	);

	/**
	Decrypt the message listed in fragment.

	@param[in] TlsInstance The pointer to the TLS instance.
	@param[in, out] FragmentTable Pointer to a list of fragment.
	On input these fragments contain the TLS header and
	cipher text TLS payload;
	On output these fragments contain the TLS header and
	plain text TLS payload.
	@param[in] FragmentCount Number of fragment.

	@retval EFI_SUCCESS The operation completed successfully.
	@retval EFI_OUT_OF_RESOURCES Can't allocate memory resources.
	@retval EFI_ABORTED TLS session state is incorrect.
	@retval Others Other errors as indicated.
	**/
	EFI_STATUS
	TlsDecryptPacket (
	IN TLS_INSTANCE *TlsInstance,
	IN OUT EFI_TLS_FRAGMENT_DATA **FragmentTable,
	IN UINT32 *FragmentCount
	);

	/**
	Set TLS session data.

	The SetSessionData() function set data for a new TLS session. All session data should
	be set before BuildResponsePacket() invoked.

	@param[in] This Pointer to the EFI_TLS_PROTOCOL instance.
	@param[in] DataType TLS session data type.
	@param[in] Data Pointer to session data.
	@param[in] DataSize Total size of session data.

	@retval EFI_SUCCESS The TLS session data is set successfully.
	@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
	This is NULL.
	Data is NULL.
	DataSize is 0.
	@retval EFI_UNSUPPORTED The DataType is unsupported.
	@retval EFI_ACCESS_DENIED If the DataType is one of below:
	EfiTlsClientRandom
	EfiTlsServerRandom
	EfiTlsKeyMaterial
	@retval EFI_NOT_READY Current TLS session state is NOT
	EfiTlsSessionStateNotStarted.
	@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
	**/
	EFI_STATUS
	EFIAPI
	TlsSetSessionData (
	IN EFI_TLS_PROTOCOL *This,
	IN EFI_TLS_SESSION_DATA_TYPE DataType,
	IN VOID *Data,
	IN UINTN DataSize
	);

	/**
	Get TLS session data.

	The GetSessionData() function return the TLS session information.

	@param[in] This Pointer to the EFI_TLS_PROTOCOL instance.
	@param[in] DataType TLS session data type.
	@param[in, out] Data Pointer to session data.
	@param[in, out] DataSize Total size of session data. On input, it means
	the size of Data buffer. On output, it means the size
	of copied Data buffer if EFI_SUCCESS, and means the
	size of desired Data buffer if EFI_BUFFER_TOO_SMALL.

	@retval EFI_SUCCESS The TLS session data is got successfully.
	@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
	This is NULL.
	DataSize is NULL.
	Data is NULL if *DataSize is not zero.
	@retval EFI_UNSUPPORTED The DataType is unsupported.
	@retval EFI_NOT_FOUND The TLS session data is not found.
	@retval EFI_NOT_READY The DataType is not ready in current session state.
	@retval EFI_BUFFER_TOO_SMALL The buffer is too small to hold the data.
	**/
	EFI_STATUS
	EFIAPI
	TlsGetSessionData (
	IN EFI_TLS_PROTOCOL *This,
	IN EFI_TLS_SESSION_DATA_TYPE DataType,
	IN OUT VOID *Data, OPTIONAL
	IN OUT UINTN *DataSize
	);

	/**
	Build response packet according to TLS state machine. This function is only valid for
	alert, handshake and change_cipher_spec content type.

	The BuildResponsePacket() function builds TLS response packet in response to the TLS
	request packet specified by RequestBuffer and RequestSize. If RequestBuffer is NULL and
	RequestSize is 0, and TLS session status is EfiTlsSessionNotStarted, the TLS session
	will be initiated and the response packet needs to be ClientHello. If RequestBuffer is
	NULL and RequestSize is 0, and TLS session status is EfiTlsSessionClosing, the TLS
	session will be closed and response packet needs to be CloseNotify. If RequestBuffer is
	NULL and RequestSize is 0, and TLS session status is EfiTlsSessionError, the TLS
	session has errors and the response packet needs to be Alert message based on error
	type.

	@param[in] This Pointer to the EFI_TLS_PROTOCOL instance.
	@param[in] RequestBuffer Pointer to the most recently received TLS packet. NULL
	means TLS need initiate the TLS session and response
	packet need to be ClientHello.
	@param[in] RequestSize Packet size in bytes for the most recently received TLS
	packet. 0 is only valid when RequestBuffer is NULL.
	@param[out] Buffer Pointer to the buffer to hold the built packet.
	@param[in, out] BufferSize Pointer to the buffer size in bytes. On input, it is
	the buffer size provided by the caller. On output, it
	is the buffer size in fact needed to contain the
	packet.

	@retval EFI_SUCCESS The required TLS packet is built successfully.
	@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
	This is NULL.
	RequestBuffer is NULL but RequestSize is NOT 0.
	RequestSize is 0 but RequestBuffer is NOT NULL.
	BufferSize is NULL.
	Buffer is NULL if *BufferSize is not zero.
	@retval EFI_BUFFER_TOO_SMALL BufferSize is too small to hold the response packet.
	@retval EFI_NOT_READY Current TLS session state is NOT ready to build
	ResponsePacket.
	@retval EFI_ABORTED Something wrong build response packet.
	**/
	EFI_STATUS
	EFIAPI
	TlsBuildResponsePacket (
	IN EFI_TLS_PROTOCOL *This,
	IN UINT8 *RequestBuffer, OPTIONAL
	IN UINTN RequestSize, OPTIONAL
	OUT UINT8 *Buffer, OPTIONAL
	IN OUT UINTN *BufferSize
	);

	/**
	Decrypt or encrypt TLS packet during session. This function is only valid after
	session connected and for application_data content type.

	The ProcessPacket () function process each inbound or outbound TLS APP packet.

	@param[in] This Pointer to the EFI_TLS_PROTOCOL instance.
	@param[in, out] FragmentTable Pointer to a list of fragment. The caller will take
	responsible to handle the original FragmentTable while
	it may be reallocated in TLS driver. If CryptMode is
	EfiTlsEncrypt, on input these fragments contain the TLS
	header and plain text TLS APP payload; on output these
	fragments contain the TLS header and cipher text TLS
	APP payload. If CryptMode is EfiTlsDecrypt, on input
	these fragments contain the TLS header and cipher text
	TLS APP payload; on output these fragments contain the
	TLS header and plain text TLS APP payload.
	@param[in] FragmentCount Number of fragment.
	@param[in] CryptMode Crypt mode.

	@retval EFI_SUCCESS The operation completed successfully.
	@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
	This is NULL.
	FragmentTable is NULL.
	FragmentCount is NULL.
	CryptoMode is invalid.
	@retval EFI_NOT_READY Current TLS session state is NOT
	EfiTlsSessionDataTransferring.
	@retval EFI_ABORTED Something wrong decryption the message. TLS session
	status will become EfiTlsSessionError. The caller need
	call BuildResponsePacket() to generate Error Alert
	message and send it out.
	@retval EFI_OUT_OF_RESOURCES No enough resource to finish the operation.
	**/
	EFI_STATUS
	EFIAPI
	TlsProcessPacket (
	IN EFI_TLS_PROTOCOL *This,
	IN OUT EFI_TLS_FRAGMENT_DATA **FragmentTable,
	IN UINT32 *FragmentCount,
	IN EFI_TLS_CRYPT_MODE CryptMode
	);

	/**
	Set TLS configuration data.

	The SetData() function sets TLS configuration to non-volatile storage or volatile
	storage.

	@param[in] This Pointer to the EFI_TLS_CONFIGURATION_PROTOCOL instance.
	@param[in] DataType Configuration data type.
	@param[in] Data Pointer to configuration data.
	@param[in] DataSize Total size of configuration data.

	@retval EFI_SUCCESS The TLS configuration data is set successfully.
	@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
	This is NULL.
	Data is NULL.
	DataSize is 0.
	@retval EFI_UNSUPPORTED The DataType is unsupported.
	@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
	**/
	EFI_STATUS
	EFIAPI
	TlsConfigurationSetData (
	IN EFI_TLS_CONFIGURATION_PROTOCOL *This,
	IN EFI_TLS_CONFIG_DATA_TYPE DataType,
	IN VOID *Data,
	IN UINTN DataSize
	);

	/**
	Get TLS configuration data.

	The GetData() function gets TLS configuration.

	@param[in] This Pointer to the EFI_TLS_CONFIGURATION_PROTOCOL instance.
	@param[in] DataType Configuration data type.
	@param[in, out] Data Pointer to configuration data.
	@param[in, out] DataSize Total size of configuration data. On input, it means
	the size of Data buffer. On output, it means the size
	of copied Data buffer if EFI_SUCCESS, and means the
	size of desired Data buffer if EFI_BUFFER_TOO_SMALL.

	@retval EFI_SUCCESS The TLS configuration data is got successfully.
	@retval EFI_INVALID_PARAMETER One or more of the following conditions is TRUE:
	This is NULL.
	DataSize is NULL.
	Data is NULL if *DataSize is not zero.
	@retval EFI_UNSUPPORTED The DataType is unsupported.
	@retval EFI_NOT_FOUND The TLS configuration data is not found.
	@retval EFI_BUFFER_TOO_SMALL The buffer is too small to hold the data.
	**/
	EFI_STATUS
	EFIAPI
	TlsConfigurationGetData (
	IN EFI_TLS_CONFIGURATION_PROTOCOL *This,
	IN EFI_TLS_CONFIG_DATA_TYPE DataType,
	IN OUT VOID *Data, OPTIONAL
	IN OUT UINTN *DataSize
	);

	#endif