[mirror_edk2.git] / MdePkg / Include / Protocol / Ip4Config2.h

/** @file\r
  This file provides a definition of the EFI IPv4 Configuration II\r
  Protocol.\r
\r
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r
This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at<BR>\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
@par Revision Reference:\r
This Protocol is introduced in UEFI Specification 2.5\r
\r
**/\r
#ifndef __EFI_IP4CONFIG2_PROTOCOL_H__\r
#define __EFI_IP4CONFIG2_PROTOCOL_H__\r
\r
#include <Protocol/Ip4.h>\r
\r
#define EFI_IP4_CONFIG2_PROTOCOL_GUID \\r
  { \\r
    0x5b446ed1, 0xe30b, 0x4faa, {0x87, 0x1a, 0x36, 0x54, 0xec, 0xa3, 0x60, 0x80 } \\r
  }\r
\r
typedef struct _EFI_IP4_CONFIG2_PROTOCOL EFI_IP4_CONFIG2_PROTOCOL;\r
\r
\r
///\r
/// EFI_IP4_CONFIG2_DATA_TYPE\r
///\r
typedef enum {\r
  ///\r
  /// The interface information of the communication device this EFI \r
  /// IPv4 Configuration II Protocol instance manages. This type of \r
  /// data is read only. The corresponding Data is of type \r
  /// EFI_IP4_CONFIG2_INTERFACE_INFO.\r
  ///\r
  Ip4Config2DataTypeInterfaceInfo,\r
  ///\r
  /// The general configuration policy for the EFI IPv4 network stack \r
  /// running on the communication device this EFI IPv4 \r
  /// Configuration II Protocol instance manages. The policy will \r
  /// affect other configuration settings. The corresponding Data is of \r
  /// type EFI_IP4_CONFIG2_POLICY.\r
  ///\r
  Ip4Config2DataTypePolicy,\r
  ///\r
  /// The station addresses set manually for the EFI IPv4 network \r
  /// stack. It is only configurable when the policy is \r
  /// Ip4Config2PolicyStatic. The corresponding Data is of \r
  /// type EFI_IP4_CONFIG2_MANUAL_ADDRESS.\r
  ///\r
  Ip4Config2DataTypeManualAddress,\r
  ///\r
  /// The gateway addresses set manually for the EFI IPv4 network \r
  /// stack running on the communication device this EFI IPv4 \r
  /// Configuration II Protocol manages. It is not configurable when \r
  /// the policy is Ip4Config2PolicyDhcp. The gateway \r
  /// addresses must be unicast IPv4 addresses. The corresponding \r
  /// Data is a pointer to an array of EFI_IPv4_ADDRESS instances.\r
  ///\r
  Ip4Config2DataTypeGateway,\r
  ///\r
  /// The DNS server list for the EFI IPv4 network stack running on \r
  /// the communication device this EFI IPv4 Configuration II \r
  /// Protocol manages. It is not configurable when the policy is \r
  /// Ip4Config2PolicyDhcp. The DNS server addresses must be \r
  /// unicast IPv4 addresses. The corresponding Data is a pointer to \r
  /// an array of EFI_IPv4_ADDRESS instances.\r
  ///\r
  Ip4Config2DataTypeDnsServer,\r
  Ip4Config2DataTypeMaximum\r
} EFI_IP4_CONFIG2_DATA_TYPE;\r
\r
///\r
/// EFI_IP4_CONFIG2_INTERFACE_INFO\r
///\r
typedef struct {\r
  ///\r
  /// The name of the interface. It is a NULL-terminated Unicode string.\r
  ///\r
  CHAR16                Name[32];\r
  ///\r
  /// The interface type of the network interface. See RFC 1700, \r
  /// section "Number Hardware Type".\r
  ///\r
  UINT8                 IfType;\r
  ///\r
  /// The size, in bytes, of the network interface's hardware address.\r
  ///\r
  UINT32                HwAddressSize;\r
  ///\r
  /// The hardware address for the network interface.\r
  ///\r
  EFI_MAC_ADDRESS       HwAddress;\r
  ///\r
  /// The station IPv4 address of this EFI IPv4 network stack.\r
  ///\r
  EFI_IPv4_ADDRESS      StationAddress;\r
  ///\r
  /// The subnet address mask that is associated with the station address.\r
  ///\r
  EFI_IPv4_ADDRESS      SubnetMask;\r
  ///\r
  /// Size of the following RouteTable, in bytes. May be zero.\r
  ///\r
  UINT32                RouteTableSize;\r
  ///\r
  /// The route table of the IPv4 network stack runs on this interface. \r
  /// Set to NULL if RouteTableSize is zero. Type EFI_IP4_ROUTE_TABLE is defined in \r
  /// EFI_IP4_PROTOCOL.GetModeData().\r
  ///\r
  EFI_IP4_ROUTE_TABLE   *RouteTable     OPTIONAL;\r
} EFI_IP4_CONFIG2_INTERFACE_INFO;\r
\r
///\r
/// EFI_IP4_CONFIG2_POLICY\r
///\r
typedef enum {\r
  ///\r
  /// Under this policy, the Ip4Config2DataTypeManualAddress, \r
  /// Ip4Config2DataTypeGateway and Ip4Config2DataTypeDnsServer configuration \r
  /// data are required to be set manually. The EFI IPv4 Protocol will get all \r
  /// required configuration such as IPv4 address, subnet mask and \r
  /// gateway settings from the EFI IPv4 Configuration II protocol.\r
  ///\r
  Ip4Config2PolicyStatic,\r
  ///\r
  /// Under this policy, the Ip4Config2DataTypeManualAddress, \r
  /// Ip4Config2DataTypeGateway and Ip4Config2DataTypeDnsServer configuration data are \r
  /// not allowed to set via SetData(). All of these configurations are retrieved from DHCP \r
  /// server or other auto-configuration mechanism.\r
  ///\r
  Ip4Config2PolicyDhcp,\r
  Ip4Config2PolicyMax\r
} EFI_IP4_CONFIG2_POLICY;\r
\r
///\r
/// EFI_IP4_CONFIG2_MANUAL_ADDRESS\r
///\r
typedef struct {\r
  ///  \r
  /// The IPv4 unicast address.\r
  ///\r
  EFI_IPv4_ADDRESS        Address;\r
  ///\r
  /// The subnet mask. \r
  ///\r
  EFI_IPv4_ADDRESS        SubnetMask;\r
} EFI_IP4_CONFIG2_MANUAL_ADDRESS;\r
\r
/**\r
  Set the configuration for the EFI IPv4 network stack running on the communication device this EFI \r
  IPv4 Configuration II Protocol instance manages.\r
\r
  This function is used to set the configuration data of type DataType for the EFI IPv4 network stack \r
  running on the communication device this EFI IPv4 Configuration II Protocol instance manages.\r
  The successfully configured data is valid after system reset or power-off.\r
  The DataSize is used to calculate the count of structure instances in the Data for some \r
  DataType that multiple structure instances are allowed.\r
  This function is always non-blocking. When setting some typeof configuration data, an \r
  asynchronous process is invoked to check the correctness of the data, such as doing address conflict \r
  detection on the manually set local IPv4 address. EFI_NOT_READY is returned immediately to \r
  indicate that such an asynchronous process is invoked and the process is not finished yet. The caller \r
  willing to get the result of the asynchronous process is required to call RegisterDataNotify()\r
  to register an event on the specified configuration data. Once the event is signaled, the caller can call \r
  GetData()to get back the configuration data in order to know the result. For other types of \r
  configuration data that do not require an asynchronous configuration process, the result of the \r
  operation is immediately returned. \r
\r
  @param[in]   This               Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.       \r
  @param[in]   DataType           The type of data to set.\r
  @param[in]   DataSize           Size of the buffer pointed to by Data in bytes.\r
  @param[in]   Data               The data buffer to set. The type ofthe data buffer is associated \r
                                  with the DataType. \r
\r
  @retval EFI_SUCCESS             The specified configuration data for the EFI IPv4 network stack is set \r
                                  successfully.\r
  @retval EFI_INVALID_PARAMETER   One or more of the following are TRUE:\r
                                  This is NULL.\r
                                  Data is NULL.\r
                                  One or more fields in Data do not match the requirement of the data type \r
                                  indicated by DataType.\r
  @retval EFI_WRITE_PROTECTED     The specified configuration data is read-only or the specified configuration \r
                                  data can not be set under the current policy.\r
  @retval EFI_ACCESS_DENIED       Another set operation on the specified configuration data is already in process.\r
  @retval EFI_NOT_READY           An asynchronous process is invoked to set the specified configuration data and \r
                                  the process is not finished yet.\r
  @retval EFI_BAD_BUFFER_SIZE     The DataSize does not match the size of the type indicated by DataType.                                 \r
  @retval EFI_UNSUPPORTED         This DataType is not supported.\r
  @retval EFI_OUT_OF_RESOURCES    Required system resources could not be allocated.\r
  @retval EFI_DEVICE_ERROR        An unexpected system error or network error occurred.\r
**/\r
typedef \r
EFI_STATUS\r
(EFIAPI *EFI_IP4_CONFIG2_SET_DATA) (\r
  IN EFI_IP4_CONFIG2_PROTOCOL   *This,\r
  IN EFI_IP4_CONFIG2_DATA_TYPE  DataType,\r
  IN UINTN                      DataSize,\r
  IN VOID                       *Data\r
  );\r
\r
/**\r
  Get the configuration data for the EFI IPv4 network stack running on the communication device this \r
  EFI IPv4 Configuration II Protocol instance manages.\r
\r
  This function returns the configuration data of type DataType for the EFI IPv4 network stack \r
  running on the communication device this EFI IPv4 Configuration II Protocol instance manages.\r
  The caller is responsible for allocating the buffer usedto return the specified configuration data and \r
  the required size will be returned to the caller if the size of the buffer is too small.\r
  EFI_NOT_READY is returned if the specified configuration data is not ready due to an already in \r
  progress asynchronous configuration process. The caller can call RegisterDataNotify() to \r
  register an event on the specified configuration data. Once the asynchronous configuration process is \r
  finished, the event will be signaled and a subsequent GetData() call will return the specified \r
  configuration data.\r
\r
  @param[in]   This               Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.       \r
  @param[in]   DataType           The type of data to get.\r
  @param[out]  DataSize           On input, in bytes, the size of Data. On output, in bytes, the size \r
                                  of buffer required to store the specified configuration data. \r
  @param[in]   Data               The data buffer in which the configuration data is returned. The \r
                                  type of the data buffer is associated with the DataType. Ignored \r
                                  if DataSize is 0.  \r
\r
  @retval EFI_SUCCESS             The specified configuration data is got successfully.\r
  @retval EFI_INVALID_PARAMETER   One or more of the followings are TRUE:\r
                                  This is NULL.\r
                                  DataSize is NULL.\r
                                  Data is NULL if *DataSizeis not zero.\r
  @retval EFI_BUFFER_TOO_SMALL    The size of Data is too small for the specified configuration data \r
                                  and the required size is returned in DataSize.\r
  @retval EFI_NOT_READY           The specified configuration data is not ready due to an already in \r
                                  progress asynchronous configuration process.\r
  @retval EFI_NOT_FOUND           The specified configuration data is not found.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_IP4_CONFIG2_GET_DATA) (\r
  IN EFI_IP4_CONFIG2_PROTOCOL     *This,\r
  IN EFI_IP4_CONFIG2_DATA_TYPE    DataType,\r
  IN OUT UINTN                    *DataSize,\r
  IN VOID                         *Data        OPTIONAL\r
  );\r
\r
/**\r
  Register an event that is to be signaled whenever a configuration process on the specified \r
  configuration data is done.\r
\r
  This function registers an event that is to be signaled whenever a configuration process on the \r
  specified configuration data is done. An event can be registered for different DataType\r
  simultaneously and the caller is responsible for determining which type of configuration data causes \r
  the signaling of the event in such case.\r
\r
  @param[in]   This               Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.       \r
  @param[in]   DataType           The type of data to unregister the event for.\r
  @param[in]   Event              The event to register.\r
\r
  @retval EFI_SUCCESS             The notification event for the specified configuration data is \r
                                  registered.\r
  @retval EFI_INVALID_PARAMETER   This is NULL or Event is NULL.\r
  @retval EFI_UNSUPPORTED         The configuration data type specified by DataType is not supported.\r
  @retval EFI_OUT_OF_RESOURCES    Required system resources could not be allocated.\r
  @retval EFI_ACCESS_DENIED       The Event is already registered for the DataType.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_IP4_CONFIG2_REGISTER_NOTIFY) (\r
  IN EFI_IP4_CONFIG2_PROTOCOL     *This,\r
  IN EFI_IP4_CONFIG2_DATA_TYPE    DataType,\r
  IN EFI_EVENT                    Event\r
  );\r
\r
/**\r
  Remove a previously registered event for the specified configuration data.\r
\r
  This function removes a previously registeredevent for the specified configuration data.\r
\r
  @param[in]   This               Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.       \r
  @param[in]   DataType           The type of data to remove the previously registered event for.\r
  @param[in]   Event              The event to unregister.\r
\r
  @retval EFI_SUCCESS             The event registered for the specified configuration data is removed.\r
  @retval EFI_INVALID_PARAMETER   This is NULL or Event is NULL.\r
  @retval EFI_NOT_FOUND           The Eventhas not been registered for the specified DataType.\r
**/\r
typedef\r
EFI_STATUS\r
(EFIAPI *EFI_IP4_CONFIG2_UNREGISTER_NOTIFY) (\r
  IN EFI_IP4_CONFIG2_PROTOCOL     *This,\r
  IN EFI_IP4_CONFIG2_DATA_TYPE    DataType,\r
  IN EFI_EVENT                    Event\r
  );\r
\r
///\r
/// The EFI_IP4_CONFIG2_PROTOCOL is designed to be the central repository for the common \r
/// configurations and the administrator configurable settings for the EFI IPv4 network stack.\r
/// An EFI IPv4 Configuration II Protocol instance will be installed on each communication device that \r
/// the EFI IPv4 network stack runs on.\r
///\r
struct _EFI_IP4_CONFIG2_PROTOCOL {\r
  EFI_IP4_CONFIG2_SET_DATA           SetData;\r
  EFI_IP4_CONFIG2_GET_DATA           GetData;\r
  EFI_IP4_CONFIG2_REGISTER_NOTIFY    RegisterDataNotify;\r
  EFI_IP4_CONFIG2_UNREGISTER_NOTIFY  UnregisterDataNotify;\r
};\r
\r
extern EFI_GUID gEfiIp4Config2ProtocolGuid;\r
\r
#endif\r
\r
Commit	Line	Data
cff298f4	1	/** @file\r
	2	This file provides a definition of the EFI IPv4 Configuration II\r
	3	Protocol.\r
	4	\r
	5	Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r
	6	This program and the accompanying materials\r
	7	are licensed and made available under the terms and conditions of the BSD License\r
	8	which accompanies this distribution. The full text of the license may be found at<BR>\r
	9	http://opensource.org/licenses/bsd-license.php\r
	10	\r
	11	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	12	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	13	\r
	14	@par Revision Reference:\r
	15	This Protocol is introduced in UEFI Specification 2.5\r
	16	\r
	17	**/\r
	18	#ifndef __EFI_IP4CONFIG2_PROTOCOL_H__\r
	19	#define __EFI_IP4CONFIG2_PROTOCOL_H__\r
	20	\r
	21	#include <Protocol/Ip4.h>\r
	22	\r
	23	#define EFI_IP4_CONFIG2_PROTOCOL_GUID \\r
	24	{ \\r
	25	0x5b446ed1, 0xe30b, 0x4faa, {0x87, 0x1a, 0x36, 0x54, 0xec, 0xa3, 0x60, 0x80 } \\r
	26	}\r
	27	\r
	28	typedef struct _EFI_IP4_CONFIG2_PROTOCOL EFI_IP4_CONFIG2_PROTOCOL;\r
	29	\r
	30	\r
	31	///\r
	32	/// EFI_IP4_CONFIG2_DATA_TYPE\r
	33	///\r
	34	typedef enum {\r
	35	///\r
	36	/// The interface information of the communication device this EFI \r
	37	/// IPv4 Configuration II Protocol instance manages. This type of \r
	38	/// data is read only. The corresponding Data is of type \r
	39	/// EFI_IP4_CONFIG2_INTERFACE_INFO.\r
	40	///\r
	41	Ip4Config2DataTypeInterfaceInfo,\r
	42	///\r
	43	/// The general configuration policy for the EFI IPv4 network stack \r
	44	/// running on the communication device this EFI IPv4 \r
	45	/// Configuration II Protocol instance manages. The policy will \r
	46	/// affect other configuration settings. The corresponding Data is of \r
	47	/// type EFI_IP4_CONFIG2_POLICY.\r
	48	///\r
	49	Ip4Config2DataTypePolicy,\r
	50	///\r
	51	/// The station addresses set manually for the EFI IPv4 network \r
	52	/// stack. It is only configurable when the policy is \r
	53	/// Ip4Config2PolicyStatic. The corresponding Data is of \r
	54	/// type EFI_IP4_CONFIG2_MANUAL_ADDRESS.\r
	55	///\r
	56	Ip4Config2DataTypeManualAddress,\r
	57	///\r
	58	/// The gateway addresses set manually for the EFI IPv4 network \r
	59	/// stack running on the communication device this EFI IPv4 \r
	60	/// Configuration II Protocol manages. It is not configurable when \r
	61	/// the policy is Ip4Config2PolicyDhcp. The gateway \r
	62	/// addresses must be unicast IPv4 addresses. The corresponding \r
	63	/// Data is a pointer to an array of EFI_IPv4_ADDRESS instances.\r
	64	///\r
65	Ip4Config2DataTypeGateway,\r
66	///\r
67	/// The DNS server list for the EFI IPv4 network stack running on \r
68	/// the communication device this EFI IPv4 Configuration II \r
69	/// Protocol manages. It is not configurable when the policy is \r
70	/// Ip4Config2PolicyDhcp. The DNS server addresses must be \r
71	/// unicast IPv4 addresses. The corresponding Data is a pointer to \r
72	/// an array of EFI_IPv4_ADDRESS instances.\r
73	///\r
74	Ip4Config2DataTypeDnsServer,\r
75	Ip4Config2DataTypeMaximum\r
76	} EFI_IP4_CONFIG2_DATA_TYPE;\r
77	\r
78	///\r
79	/// EFI_IP4_CONFIG2_INTERFACE_INFO\r
80	///\r
81	typedef struct {\r
82	///\r
83	/// The name of the interface. It is a NULL-terminated Unicode string.\r
84	///\r
85	CHAR16 Name[32];\r
86	///\r
87	/// The interface type of the network interface. See RFC 1700, \r
88	/// section "Number Hardware Type".\r
89	///\r
90	UINT8 IfType;\r
91	///\r
92	/// The size, in bytes, of the network interface's hardware address.\r
93	///\r
94	UINT32 HwAddressSize;\r
95	///\r
96	/// The hardware address for the network interface.\r
97	///\r
98	EFI_MAC_ADDRESS HwAddress;\r
99	///\r
100	/// The station IPv4 address of this EFI IPv4 network stack.\r
101	///\r
102	EFI_IPv4_ADDRESS StationAddress;\r
103	///\r
104	/// The subnet address mask that is associated with the station address.\r
105	///\r
106	EFI_IPv4_ADDRESS SubnetMask;\r
107	///\r
108	/// Size of the following RouteTable, in bytes. May be zero.\r
109	///\r
110	UINT32 RouteTableSize;\r
111	///\r
112	/// The route table of the IPv4 network stack runs on this interface. \r
113	/// Set to NULL if RouteTableSize is zero. Type EFI_IP4_ROUTE_TABLE is defined in \r
114	/// EFI_IP4_PROTOCOL.GetModeData().\r
115	///\r
116	EFI_IP4_ROUTE_TABLE *RouteTable OPTIONAL;\r
117	} EFI_IP4_CONFIG2_INTERFACE_INFO;\r
118	\r
119	///\r
120	/// EFI_IP4_CONFIG2_POLICY\r
121	///\r
122	typedef enum {\r
123	///\r
124	/// Under this policy, the Ip4Config2DataTypeManualAddress, \r
125	/// Ip4Config2DataTypeGateway and Ip4Config2DataTypeDnsServer configuration \r
126	/// data are required to be set manually. The EFI IPv4 Protocol will get all \r
127	/// required configuration such as IPv4 address, subnet mask and \r
128	/// gateway settings from the EFI IPv4 Configuration II protocol.\r
129	///\r
130	Ip4Config2PolicyStatic,\r
131	///\r
132	/// Under this policy, the Ip4Config2DataTypeManualAddress, \r
133	/// Ip4Config2DataTypeGateway and Ip4Config2DataTypeDnsServer configuration data are \r
134	/// not allowed to set via SetData(). All of these configurations are retrieved from DHCP \r
135	/// server or other auto-configuration mechanism.\r
136	///\r
137	Ip4Config2PolicyDhcp,\r
138	Ip4Config2PolicyMax\r
139	} EFI_IP4_CONFIG2_POLICY;\r
140	\r
141	///\r
142	/// EFI_IP4_CONFIG2_MANUAL_ADDRESS\r
143	///\r
144	typedef struct {\r
145	/// \r
146	/// The IPv4 unicast address.\r
147	///\r
148	EFI_IPv4_ADDRESS Address;\r
149	///\r
150	/// The subnet mask. \r
151	///\r
152	EFI_IPv4_ADDRESS SubnetMask;\r
153	} EFI_IP4_CONFIG2_MANUAL_ADDRESS;\r
154	\r
155	/**\r
156	Set the configuration for the EFI IPv4 network stack running on the communication device this EFI \r
157	IPv4 Configuration II Protocol instance manages.\r
158	\r
159	This function is used to set the configuration data of type DataType for the EFI IPv4 network stack \r
160	running on the communication device this EFI IPv4 Configuration II Protocol instance manages.\r
161	The successfully configured data is valid after system reset or power-off.\r
162	The DataSize is used to calculate the count of structure instances in the Data for some \r
163	DataType that multiple structure instances are allowed.\r
164	This function is always non-blocking. When setting some typeof configuration data, an \r
165	asynchronous process is invoked to check the correctness of the data, such as doing address conflict \r
166	detection on the manually set local IPv4 address. EFI_NOT_READY is returned immediately to \r
167	indicate that such an asynchronous process is invoked and the process is not finished yet. The caller \r
168	willing to get the result of the asynchronous process is required to call RegisterDataNotify()\r
169	to register an event on the specified configuration data. Once the event is signaled, the caller can call \r
170	GetData()to get back the configuration data in order to know the result. For other types of \r
171	configuration data that do not require an asynchronous configuration process, the result of the \r
172	operation is immediately returned. \r
173	\r
174	@param[in] This Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance. \r
175	@param[in] DataType The type of data to set.\r
176	@param[in] DataSize Size of the buffer pointed to by Data in bytes.\r
177	@param[in] Data The data buffer to set. The type ofthe data buffer is associated \r
178	with the DataType. \r
179	\r
180	@retval EFI_SUCCESS The specified configuration data for the EFI IPv4 network stack is set \r
181	successfully.\r
182	@retval EFI_INVALID_PARAMETER One or more of the following are TRUE:\r
183	This is NULL.\r
184	Data is NULL.\r
185	One or more fields in Data do not match the requirement of the data type \r
186	indicated by DataType.\r
187	@retval EFI_WRITE_PROTECTED The specified configuration data is read-only or the specified configuration \r
188	data can not be set under the current policy.\r
189	@retval EFI_ACCESS_DENIED Another set operation on the specified configuration data is already in process.\r
190	@retval EFI_NOT_READY An asynchronous process is invoked to set the specified configuration data and \r
191	the process is not finished yet.\r
192	@retval EFI_BAD_BUFFER_SIZE The DataSize does not match the size of the type indicated by DataType. \r
193	@retval EFI_UNSUPPORTED This DataType is not supported.\r
194	@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.\r
195	@retval EFI_DEVICE_ERROR An unexpected system error or network error occurred.\r
196	**/\r
197	typedef \r
198	EFI_STATUS\r
199	(EFIAPI *EFI_IP4_CONFIG2_SET_DATA) (\r
200	IN EFI_IP4_CONFIG2_PROTOCOL *This,\r
201	IN EFI_IP4_CONFIG2_DATA_TYPE DataType,\r
202	IN UINTN DataSize,\r
203	IN VOID *Data\r
204	);\r
205	\r
206	/**\r
207	Get the configuration data for the EFI IPv4 network stack running on the communication device this \r
208	EFI IPv4 Configuration II Protocol instance manages.\r
209	\r
210	This function returns the configuration data of type DataType for the EFI IPv4 network stack \r
211	running on the communication device this EFI IPv4 Configuration II Protocol instance manages.\r
212	The caller is responsible for allocating the buffer usedto return the specified configuration data and \r
213	the required size will be returned to the caller if the size of the buffer is too small.\r
214	EFI_NOT_READY is returned if the specified configuration data is not ready due to an already in \r
215	progress asynchronous configuration process. The caller can call RegisterDataNotify() to \r
216	register an event on the specified configuration data. Once the asynchronous configuration process is \r
217	finished, the event will be signaled and a subsequent GetData() call will return the specified \r
218	configuration data.\r
219	\r
220	@param[in] This Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance. \r
221	@param[in] DataType The type of data to get.\r
222	@param[out] DataSize On input, in bytes, the size of Data. On output, in bytes, the size \r
223	of buffer required to store the specified configuration data. \r
224	@param[in] Data The data buffer in which the configuration data is returned. The \r
225	type of the data buffer is associated with the DataType. Ignored \r
226	if DataSize is 0. \r
227	\r
228	@retval EFI_SUCCESS The specified configuration data is got successfully.\r
229	@retval EFI_INVALID_PARAMETER One or more of the followings are TRUE:\r
230	This is NULL.\r
231	DataSize is NULL.\r
232	Data is NULL if *DataSizeis not zero.\r
233	@retval EFI_BUFFER_TOO_SMALL The size of Data is too small for the specified configuration data \r
234	and the required size is returned in DataSize.\r
235	@retval EFI_NOT_READY The specified configuration data is not ready due to an already in \r
236	progress asynchronous configuration process.\r
237	@retval EFI_NOT_FOUND The specified configuration data is not found.\r
238	**/\r
239	typedef\r
240	EFI_STATUS\r
241	(EFIAPI *EFI_IP4_CONFIG2_GET_DATA) (\r
242	IN EFI_IP4_CONFIG2_PROTOCOL *This,\r
243	IN EFI_IP4_CONFIG2_DATA_TYPE DataType,\r
244	IN OUT UINTN *DataSize,\r
245	IN VOID *Data OPTIONAL\r
246	);\r
247	\r
248	/**\r
249	Register an event that is to be signaled whenever a configuration process on the specified \r
250	configuration data is done.\r
251	\r
252	This function registers an event that is to be signaled whenever a configuration process on the \r
253	specified configuration data is done. An event can be registered for different DataType\r
254	simultaneously and the caller is responsible for determining which type of configuration data causes \r
255	the signaling of the event in such case.\r
256	\r
257	@param[in] This Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance. \r
258	@param[in] DataType The type of data to unregister the event for.\r
259	@param[in] Event The event to register.\r
260	\r
261	@retval EFI_SUCCESS The notification event for the specified configuration data is \r
262	registered.\r
263	@retval EFI_INVALID_PARAMETER This is NULL or Event is NULL.\r
264	@retval EFI_UNSUPPORTED The configuration data type specified by DataType is not supported.\r
265	@retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.\r
266	@retval EFI_ACCESS_DENIED The Event is already registered for the DataType.\r
267	**/\r
268	typedef\r
269	EFI_STATUS\r
270	(EFIAPI *EFI_IP4_CONFIG2_REGISTER_NOTIFY) (\r
271	IN EFI_IP4_CONFIG2_PROTOCOL *This,\r
272	IN EFI_IP4_CONFIG2_DATA_TYPE DataType,\r
273	IN EFI_EVENT Event\r
274	);\r
275	\r
276	/**\r
277	Remove a previously registered event for the specified configuration data.\r
278	\r
279	This function removes a previously registeredevent for the specified configuration data.\r
280	\r
281	@param[in] This Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance. \r
282	@param[in] DataType The type of data to remove the previously registered event for.\r
283	@param[in] Event The event to unregister.\r
284	\r
285	@retval EFI_SUCCESS The event registered for the specified configuration data is removed.\r
286	@retval EFI_INVALID_PARAMETER This is NULL or Event is NULL.\r
287	@retval EFI_NOT_FOUND The Eventhas not been registered for the specified DataType.\r
288	**/\r
289	typedef\r
290	EFI_STATUS\r
291	(EFIAPI *EFI_IP4_CONFIG2_UNREGISTER_NOTIFY) (\r
292	IN EFI_IP4_CONFIG2_PROTOCOL *This,\r
293	IN EFI_IP4_CONFIG2_DATA_TYPE DataType,\r
294	IN EFI_EVENT Event\r
295	);\r
296	\r
297	///\r
298	/// The EFI_IP4_CONFIG2_PROTOCOL is designed to be the central repository for the common \r
299	/// configurations and the administrator configurable settings for the EFI IPv4 network stack.\r
300	/// An EFI IPv4 Configuration II Protocol instance will be installed on each communication device that \r
301	/// the EFI IPv4 network stack runs on.\r
302	///\r
303	struct _EFI_IP4_CONFIG2_PROTOCOL {\r
304	EFI_IP4_CONFIG2_SET_DATA SetData;\r
305	EFI_IP4_CONFIG2_GET_DATA GetData;\r
306	EFI_IP4_CONFIG2_REGISTER_NOTIFY RegisterDataNotify;\r
307	EFI_IP4_CONFIG2_UNREGISTER_NOTIFY UnregisterDataNotify;\r
308	};\r
309	\r
310	extern EFI_GUID gEfiIp4Config2ProtocolGuid;\r
311	\r
312	#endif\r
313	\r