NetworkPkg/Ip6Dxe/Ip6ConfigImpl.h - third_party/edk2 - Git at Google

 /** @file
   Definitions for EFI IPv6 Configuartion Protocol implementation.

   Copyright (c) 2009 - 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 __IP6_CONFIG_IMPL_H__
 #define __IP6_CONFIG_IMPL_H__

 #define IP6_CONFIG_INSTANCE_SIGNATURE    SIGNATURE_32 ('I', 'P', '6', 'C')
 #define IP6_FORM_CALLBACK_INFO_SIGNATURE SIGNATURE_32 ('I', 'F', 'C', 'I')
 #define IP6_CONFIG_VARIABLE_ATTRIBUTE    (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS)

 #define IP6_CONFIG_DEFAULT_DAD_XMITS        1

 #define DATA_ATTRIB_SIZE_FIXED              0x1
 #define DATA_ATTRIB_VOLATILE                0x2

 #define DATA_ATTRIB_SET(Attrib, Bits)       (BOOLEAN)((Attrib) & (Bits))
 #define SET_DATA_ATTRIB(Attrib, Bits)       ((Attrib) |= (Bits))

 typedef struct _IP6_CONFIG_INSTANCE IP6_CONFIG_INSTANCE;

 #define IP6_CONFIG_INSTANCE_FROM_PROTOCOL(Proto) \
   CR ((Proto), \
       IP6_CONFIG_INSTANCE, \
       Ip6Config, \
       IP6_CONFIG_INSTANCE_SIGNATURE \
       )


 #define IP6_CONFIG_INSTANCE_FROM_FORM_CALLBACK(Callback) \
   CR ((Callback), \
       IP6_CONFIG_INSTANCE, \
       CallbackInfo, \
       IP6_CONFIG_INSTANCE_SIGNATURE \
       )

 #define IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE(Instance) \
   CR ((Instance), \
       IP6_SERVICE, \
       Ip6ConfigInstance, \
       IP6_SERVICE_SIGNATURE \
       )

 #define IP6_FORM_CALLBACK_INFO_FROM_CONFIG_ACCESS(ConfigAccess) \
   CR ((ConfigAccess), \
       IP6_FORM_CALLBACK_INFO, \
       HiiConfigAccess, \
       IP6_FORM_CALLBACK_INFO_SIGNATURE \
       )

 /**
   The prototype of work function for EfiIp6ConfigSetData().

   @param[in]     Instance The pointer to the IP6 config instance data.
   @param[in]     DataSize In bytes, the size of the buffer pointed to by Data.
   @param[in]     Data     The data buffer to set.

   @retval EFI_BAD_BUFFER_SIZE  The DataSize does not match the size of the type,
                                8 bytes.
   @retval EFI_SUCCESS          The specified configuration data for the EFI IPv6
                                network stack was set successfully.

 **/
 typedef
 EFI_STATUS
 (*IP6_CONFIG_SET_DATA) (
   IN IP6_CONFIG_INSTANCE  *Instance,
   IN UINTN                DataSize,
   IN VOID                 *Data
   );

 /**
   The prototype of work function for EfiIp6ConfigGetData().

   @param[in]      Instance The pointer to the IP6 config instance data.
   @param[in, out] DataSize On input, in bytes, the size of Data. On output, in
                            bytes, the size of buffer required to store the specified
                            configuration data.
   @param[in]      Data     The data buffer in which the configuration data is returned.
                            Ignored if DataSize is ZERO.

   @retval EFI_BUFFER_TOO_SMALL The size of Data is too small for the specified
                                configuration data, and the required size is
                                returned in DataSize.
   @retval EFI_SUCCESS          The specified configuration data was obtained successfully.

 **/
 typedef
 EFI_STATUS
 (*IP6_CONFIG_GET_DATA) (
   IN IP6_CONFIG_INSTANCE  *Instance,
   IN OUT UINTN            *DataSize,
   IN VOID                 *Data      OPTIONAL
   );

 typedef union {
   VOID                                      *Ptr;
   EFI_IP6_CONFIG_INTERFACE_INFO             *IfInfo;
   EFI_IP6_CONFIG_INTERFACE_ID               *AltIfId;
   EFI_IP6_CONFIG_POLICY                     *Policy;
   EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS  *DadXmits;
   EFI_IP6_CONFIG_MANUAL_ADDRESS             *ManualAddress;
   EFI_IPv6_ADDRESS                          *Gateway;
   EFI_IPv6_ADDRESS                          *DnsServers;
 } IP6_CONFIG_DATA;

 typedef struct {
   IP6_CONFIG_SET_DATA  SetData;
   IP6_CONFIG_GET_DATA  GetData;
   EFI_STATUS           Status;
   UINT8                Attribute;
   NET_MAP              EventMap;
   IP6_CONFIG_DATA      Data;
   UINTN                DataSize;
 } IP6_CONFIG_DATA_ITEM;

 typedef struct {
   UINT16                    Offset;
   UINT32                    DataSize;
   EFI_IP6_CONFIG_DATA_TYPE  DataType;
 } IP6_CONFIG_DATA_RECORD;

 #pragma pack(1)

 //
 // heap data that contains the data for each data record.
 //
 //  BOOLEAN                                   IsAltIfIdSet;
 //  EFI_IP6_CONFIG_POLICY                     Policy;
 //  EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS  DadXmits;
 //  UINT32                                    ManualaddressCount;
 //  UINT32                                    GatewayCount;
 //  UINT32                                    DnsServersCount;
 //  EFI_IP6_CONFIG_INTERFACE_ID               AltIfId;
 //  EFI_IP6_CONFIG_MANUAL_ADDRESS             ManualAddress[];
 //  EFI_IPv6_ADDRESS                          Gateway[];
 //  EFI_IPv6_ADDRESS                          DnsServers[];
 //
 typedef struct {
   UINT32                  IaId;
   UINT16                  Checksum;
   UINT16                  DataRecordCount;
   IP6_CONFIG_DATA_RECORD  DataRecord[1];
 } IP6_CONFIG_VARIABLE;

 #pragma pack()

 typedef struct {
   LIST_ENTRY                  Link;
   EFI_IP6_ADDRESS_INFO        AddrInfo;
 } IP6_ADDRESS_INFO_ENTRY;

 typedef struct {
   EFI_IP6_CONFIG_POLICY                    Policy;              ///< manual or automatic
   EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadTransmitCount;    ///< dad transmits count
   EFI_IP6_CONFIG_INTERFACE_ID              InterfaceId;         ///< alternative interface id
   LIST_ENTRY                               ManualAddress;       ///< IP addresses
   UINT32                                   ManualAddressCount;  ///< IP addresses count
   LIST_ENTRY                               GatewayAddress;      ///< Gateway address
   UINT32                                   GatewayAddressCount; ///< Gateway address count
   LIST_ENTRY                               DnsAddress;          ///< DNS server address
   UINT32                                   DnsAddressCount;     ///< DNS server address count
 } IP6_CONFIG_NVDATA;

 typedef struct _IP6_FORM_CALLBACK_INFO {
   UINT32                           Signature;
   EFI_HANDLE                       ChildHandle;
   EFI_HII_CONFIG_ACCESS_PROTOCOL   HiiConfigAccess;
   EFI_DEVICE_PATH_PROTOCOL         *HiiVendorDevicePath;
   EFI_HII_HANDLE                   RegisteredHandle;
 } IP6_FORM_CALLBACK_INFO;

 struct _IP6_CONFIG_INSTANCE {
   UINT32                                    Signature;
   BOOLEAN                                   Configured;
   LIST_ENTRY                                Link;
   UINT16                                    IfIndex;

   EFI_IP6_CONFIG_INTERFACE_INFO             InterfaceInfo;
   EFI_IP6_CONFIG_INTERFACE_ID               AltIfId;
   EFI_IP6_CONFIG_POLICY                     Policy;
   EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS  DadXmits;

   IP6_CONFIG_DATA_ITEM                      DataItem[Ip6ConfigDataTypeMaximum];
   NET_MAP                                   DadFailedMap;
   NET_MAP                                   DadPassedMap;

   EFI_IP6_CONFIG_PROTOCOL                   Ip6Config;

   EFI_EVENT                                 Dhcp6SbNotifyEvent;
   VOID                                      *Registration;
   EFI_HANDLE                                Dhcp6Handle;
   EFI_DHCP6_PROTOCOL                        *Dhcp6;
   BOOLEAN                                   OtherInfoOnly;
   UINT32                                    IaId;
   EFI_EVENT                                 Dhcp6Event;
   UINT32                                    FailedIaAddressCount;
   EFI_IPv6_ADDRESS                          *DeclineAddress;
   UINT32                                    DeclineAddressCount;

   IP6_FORM_CALLBACK_INFO                    CallbackInfo;
   IP6_CONFIG_NVDATA                         Ip6NvData;
 };

 /**
   Read the configuration data from variable storage according to the VarName and
   gEfiIp6ConfigProtocolGuid. It checks the integrity of variable data. If the
   data is corrupted, it clears the variable data to ZERO. Othewise, it outputs the
   configuration data to IP6_CONFIG_INSTANCE.

   @param[in]      VarName  The pointer to the variable name
   @param[in, out] Instance The pointer to the IP6 config instance data.

   @retval EFI_NOT_FOUND         The variable can not be found or already corrupted.
   @retval EFI_OUT_OF_RESOURCES  Fail to allocate resource to complete the operation.
   @retval EFI_SUCCESS           The configuration data was retrieved successfully.

 **/
 EFI_STATUS
 Ip6ConfigReadConfigData (
   IN     CHAR16               *VarName,
   IN OUT IP6_CONFIG_INSTANCE  *Instance
   );

 /**
   The event process routine when the DHCPv6 server is answered with a reply packet
   for an information request.

   @param[in]     This          Points to the EFI_DHCP6_PROTOCOL.
   @param[in]     Context       The pointer to the IP6 configuration instance data.
   @param[in]     Packet        The DHCPv6 reply packet.

   @retval EFI_SUCCESS      The DNS server address was retrieved from the reply packet.
   @retval EFI_NOT_READY    The reply packet does not contain the DNS server option, or
                            the DNS server address is not valid.

 **/
 EFI_STATUS
 EFIAPI
 Ip6ConfigOnDhcp6Reply (
   IN EFI_DHCP6_PROTOCOL  *This,
   IN VOID                *Context,
   IN EFI_DHCP6_PACKET    *Packet
   );

 /**
   The work function to trigger the DHCPv6 process to perform a stateful autoconfiguration.

   @param[in]     Instance      Pointer to the IP6 config instance data.
   @param[in]     OtherInfoOnly If FALSE, get stateful address and other information
                                via DHCPv6. Otherwise, only get the other information.

   @retval    EFI_SUCCESS       The operation finished successfully.
   @retval    EFI_UNSUPPORTED   The DHCP6 driver is not available.

 **/
 EFI_STATUS
 Ip6ConfigStartStatefulAutoConfig (
   IN IP6_CONFIG_INSTANCE  *Instance,
   IN BOOLEAN              OtherInfoOnly
   );

 /**
   Initialize an IP6_CONFIG_INSTANCE.

   @param[out]    Instance       The buffer of IP6_CONFIG_INSTANCE to be initialized.

   @retval EFI_OUT_OF_RESOURCES  Failed to allocate resources to complete the operation.
   @retval EFI_SUCCESS           The IP6_CONFIG_INSTANCE initialized successfully.

 **/
 EFI_STATUS
 Ip6ConfigInitInstance (
   OUT IP6_CONFIG_INSTANCE  *Instance
   );

 /**
   Release an IP6_CONFIG_INSTANCE.

   @param[in, out] Instance    The buffer of IP6_CONFIG_INSTANCE to be freed.

 **/
 VOID
 Ip6ConfigCleanInstance (
   IN OUT IP6_CONFIG_INSTANCE  *Instance
   );

 /**
   Destroy the Dhcp6 child in IP6_CONFIG_INSTANCE and release the resources.

   @param[in, out] Instance    The buffer of IP6_CONFIG_INSTANCE to be freed.

   @retval EFI_SUCCESS         The child was successfully destroyed.
   @retval Others              Failed to destroy the child.

 **/
 EFI_STATUS
 Ip6ConfigDestroyDhcp6 (
   IN OUT IP6_CONFIG_INSTANCE  *Instance
   );

 #endif
	/** @file
	Definitions for EFI IPv6 Configuartion Protocol implementation.

	Copyright (c) 2009 - 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 __IP6_CONFIG_IMPL_H__
	#define __IP6_CONFIG_IMPL_H__

	#define IP6_CONFIG_INSTANCE_SIGNATURE SIGNATURE_32 ('I', 'P', '6', 'C')
	#define IP6_FORM_CALLBACK_INFO_SIGNATURE SIGNATURE_32 ('I', 'F', 'C', 'I')
	#define IP6_CONFIG_VARIABLE_ATTRIBUTE (EFI_VARIABLE_NON_VOLATILE \| EFI_VARIABLE_BOOTSERVICE_ACCESS)

	#define IP6_CONFIG_DEFAULT_DAD_XMITS 1

	#define DATA_ATTRIB_SIZE_FIXED 0x1
	#define DATA_ATTRIB_VOLATILE 0x2

	#define DATA_ATTRIB_SET(Attrib, Bits) (BOOLEAN)((Attrib) & (Bits))
	#define SET_DATA_ATTRIB(Attrib, Bits) ((Attrib) \|= (Bits))

	typedef struct _IP6_CONFIG_INSTANCE IP6_CONFIG_INSTANCE;

	#define IP6_CONFIG_INSTANCE_FROM_PROTOCOL(Proto) \
	CR ((Proto), \
	IP6_CONFIG_INSTANCE, \
	Ip6Config, \
	IP6_CONFIG_INSTANCE_SIGNATURE \
	)


	#define IP6_CONFIG_INSTANCE_FROM_FORM_CALLBACK(Callback) \
	CR ((Callback), \
	IP6_CONFIG_INSTANCE, \
	CallbackInfo, \
	IP6_CONFIG_INSTANCE_SIGNATURE \
	)

	#define IP6_SERVICE_FROM_IP6_CONFIG_INSTANCE(Instance) \
	CR ((Instance), \
	IP6_SERVICE, \
	Ip6ConfigInstance, \
	IP6_SERVICE_SIGNATURE \
	)

	#define IP6_FORM_CALLBACK_INFO_FROM_CONFIG_ACCESS(ConfigAccess) \
	CR ((ConfigAccess), \
	IP6_FORM_CALLBACK_INFO, \
	HiiConfigAccess, \
	IP6_FORM_CALLBACK_INFO_SIGNATURE \
	)

	/**
	The prototype of work function for EfiIp6ConfigSetData().

	@param[in] Instance The pointer to the IP6 config instance data.
	@param[in] DataSize In bytes, the size of the buffer pointed to by Data.
	@param[in] Data The data buffer to set.

	@retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type,
	8 bytes.
	@retval EFI_SUCCESS The specified configuration data for the EFI IPv6
	network stack was set successfully.

	**/
	typedef
	EFI_STATUS
	(*IP6_CONFIG_SET_DATA) (
	IN IP6_CONFIG_INSTANCE *Instance,
	IN UINTN DataSize,
	IN VOID *Data
	);

	/**
	The prototype of work function for EfiIp6ConfigGetData().

	@param[in] Instance The pointer to the IP6 config instance data.
	@param[in, out] DataSize On input, in bytes, the size of Data. On output, in
	bytes, the size of buffer required to store the specified
	configuration data.
	@param[in] Data The data buffer in which the configuration data is returned.
	Ignored if DataSize is ZERO.

	@retval EFI_BUFFER_TOO_SMALL The size of Data is too small for the specified
	configuration data, and the required size is
	returned in DataSize.
	@retval EFI_SUCCESS The specified configuration data was obtained successfully.

	**/
	typedef
	EFI_STATUS
	(*IP6_CONFIG_GET_DATA) (
	IN IP6_CONFIG_INSTANCE *Instance,
	IN OUT UINTN *DataSize,
	IN VOID *Data OPTIONAL
	);

	typedef union {
	VOID *Ptr;
	EFI_IP6_CONFIG_INTERFACE_INFO *IfInfo;
	EFI_IP6_CONFIG_INTERFACE_ID *AltIfId;
	EFI_IP6_CONFIG_POLICY *Policy;
	EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS *DadXmits;
	EFI_IP6_CONFIG_MANUAL_ADDRESS *ManualAddress;
	EFI_IPv6_ADDRESS *Gateway;
	EFI_IPv6_ADDRESS *DnsServers;
	} IP6_CONFIG_DATA;

	typedef struct {
	IP6_CONFIG_SET_DATA SetData;
	IP6_CONFIG_GET_DATA GetData;
	EFI_STATUS Status;
	UINT8 Attribute;
	NET_MAP EventMap;
	IP6_CONFIG_DATA Data;
	UINTN DataSize;
	} IP6_CONFIG_DATA_ITEM;

	typedef struct {
	UINT16 Offset;
	UINT32 DataSize;
	EFI_IP6_CONFIG_DATA_TYPE DataType;
	} IP6_CONFIG_DATA_RECORD;

	#pragma pack(1)

	//
	// heap data that contains the data for each data record.
	//
	// BOOLEAN IsAltIfIdSet;
	// EFI_IP6_CONFIG_POLICY Policy;
	// EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadXmits;
	// UINT32 ManualaddressCount;
	// UINT32 GatewayCount;
	// UINT32 DnsServersCount;
	// EFI_IP6_CONFIG_INTERFACE_ID AltIfId;
	// EFI_IP6_CONFIG_MANUAL_ADDRESS ManualAddress[];
	// EFI_IPv6_ADDRESS Gateway[];
	// EFI_IPv6_ADDRESS DnsServers[];
	//
	typedef struct {
	UINT32 IaId;
	UINT16 Checksum;
	UINT16 DataRecordCount;
	IP6_CONFIG_DATA_RECORD DataRecord[1];
	} IP6_CONFIG_VARIABLE;

	#pragma pack()

	typedef struct {
	LIST_ENTRY Link;
	EFI_IP6_ADDRESS_INFO AddrInfo;
	} IP6_ADDRESS_INFO_ENTRY;

	typedef struct {
	EFI_IP6_CONFIG_POLICY Policy; ///< manual or automatic
	EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadTransmitCount; ///< dad transmits count
	EFI_IP6_CONFIG_INTERFACE_ID InterfaceId; ///< alternative interface id
	LIST_ENTRY ManualAddress; ///< IP addresses
	UINT32 ManualAddressCount; ///< IP addresses count
	LIST_ENTRY GatewayAddress; ///< Gateway address
	UINT32 GatewayAddressCount; ///< Gateway address count
	LIST_ENTRY DnsAddress; ///< DNS server address
	UINT32 DnsAddressCount; ///< DNS server address count
	} IP6_CONFIG_NVDATA;

	typedef struct _IP6_FORM_CALLBACK_INFO {
	UINT32 Signature;
	EFI_HANDLE ChildHandle;
	EFI_HII_CONFIG_ACCESS_PROTOCOL HiiConfigAccess;
	EFI_DEVICE_PATH_PROTOCOL *HiiVendorDevicePath;
	EFI_HII_HANDLE RegisteredHandle;
	} IP6_FORM_CALLBACK_INFO;

	struct _IP6_CONFIG_INSTANCE {
	UINT32 Signature;
	BOOLEAN Configured;
	LIST_ENTRY Link;
	UINT16 IfIndex;

	EFI_IP6_CONFIG_INTERFACE_INFO InterfaceInfo;
	EFI_IP6_CONFIG_INTERFACE_ID AltIfId;
	EFI_IP6_CONFIG_POLICY Policy;
	EFI_IP6_CONFIG_DUP_ADDR_DETECT_TRANSMITS DadXmits;

	IP6_CONFIG_DATA_ITEM DataItem[Ip6ConfigDataTypeMaximum];
	NET_MAP DadFailedMap;
	NET_MAP DadPassedMap;

	EFI_IP6_CONFIG_PROTOCOL Ip6Config;

	EFI_EVENT Dhcp6SbNotifyEvent;
	VOID *Registration;
	EFI_HANDLE Dhcp6Handle;
	EFI_DHCP6_PROTOCOL *Dhcp6;
	BOOLEAN OtherInfoOnly;
	UINT32 IaId;
	EFI_EVENT Dhcp6Event;
	UINT32 FailedIaAddressCount;
	EFI_IPv6_ADDRESS *DeclineAddress;
	UINT32 DeclineAddressCount;

	IP6_FORM_CALLBACK_INFO CallbackInfo;
	IP6_CONFIG_NVDATA Ip6NvData;
	};

	/**
	Read the configuration data from variable storage according to the VarName and
	gEfiIp6ConfigProtocolGuid. It checks the integrity of variable data. If the
	data is corrupted, it clears the variable data to ZERO. Othewise, it outputs the
	configuration data to IP6_CONFIG_INSTANCE.

	@param[in] VarName The pointer to the variable name
	@param[in, out] Instance The pointer to the IP6 config instance data.

	@retval EFI_NOT_FOUND The variable can not be found or already corrupted.
	@retval EFI_OUT_OF_RESOURCES Fail to allocate resource to complete the operation.
	@retval EFI_SUCCESS The configuration data was retrieved successfully.

	**/
	EFI_STATUS
	Ip6ConfigReadConfigData (
	IN CHAR16 *VarName,
	IN OUT IP6_CONFIG_INSTANCE *Instance
	);

	/**
	The event process routine when the DHCPv6 server is answered with a reply packet
	for an information request.

	@param[in] This Points to the EFI_DHCP6_PROTOCOL.
	@param[in] Context The pointer to the IP6 configuration instance data.
	@param[in] Packet The DHCPv6 reply packet.

	@retval EFI_SUCCESS The DNS server address was retrieved from the reply packet.
	@retval EFI_NOT_READY The reply packet does not contain the DNS server option, or
	the DNS server address is not valid.

	**/
	EFI_STATUS
	EFIAPI
	Ip6ConfigOnDhcp6Reply (
	IN EFI_DHCP6_PROTOCOL *This,
	IN VOID *Context,
	IN EFI_DHCP6_PACKET *Packet
	);

	/**
	The work function to trigger the DHCPv6 process to perform a stateful autoconfiguration.

	@param[in] Instance Pointer to the IP6 config instance data.
	@param[in] OtherInfoOnly If FALSE, get stateful address and other information
	via DHCPv6. Otherwise, only get the other information.

	@retval EFI_SUCCESS The operation finished successfully.
	@retval EFI_UNSUPPORTED The DHCP6 driver is not available.

	**/
	EFI_STATUS
	Ip6ConfigStartStatefulAutoConfig (
	IN IP6_CONFIG_INSTANCE *Instance,
	IN BOOLEAN OtherInfoOnly
	);

	/**
	Initialize an IP6_CONFIG_INSTANCE.

	@param[out] Instance The buffer of IP6_CONFIG_INSTANCE to be initialized.

	@retval EFI_OUT_OF_RESOURCES Failed to allocate resources to complete the operation.
	@retval EFI_SUCCESS The IP6_CONFIG_INSTANCE initialized successfully.

	**/
	EFI_STATUS
	Ip6ConfigInitInstance (
	OUT IP6_CONFIG_INSTANCE *Instance
	);

	/**
	Release an IP6_CONFIG_INSTANCE.

	@param[in, out] Instance The buffer of IP6_CONFIG_INSTANCE to be freed.

	**/
	VOID
	Ip6ConfigCleanInstance (
	IN OUT IP6_CONFIG_INSTANCE *Instance
	);

	/**
	Destroy the Dhcp6 child in IP6_CONFIG_INSTANCE and release the resources.

	@param[in, out] Instance The buffer of IP6_CONFIG_INSTANCE to be freed.

	@retval EFI_SUCCESS The child was successfully destroyed.
	@retval Others Failed to destroy the child.

	**/
	EFI_STATUS
	Ip6ConfigDestroyDhcp6 (
	IN OUT IP6_CONFIG_INSTANCE *Instance
	);

	#endif