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      1 /** @file
      2   This file provides a definition of the EFI IPv4 Configuration II
      3   Protocol.
      4 
      5 Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
      6 This program and the accompanying materials
      7 are licensed and made available under the terms and conditions of the BSD License
      8 which accompanies this distribution.  The full text of the license may be found at<BR>
      9 http://opensource.org/licenses/bsd-license.php
     10 
     11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     13 
     14 @par Revision Reference:
     15 This Protocol is introduced in UEFI Specification 2.5
     16 
     17 **/
     18 #ifndef __EFI_IP4CONFIG2_PROTOCOL_H__
     19 #define __EFI_IP4CONFIG2_PROTOCOL_H__
     20 
     21 #include <Protocol/Ip4.h>
     22 
     23 #define EFI_IP4_CONFIG2_PROTOCOL_GUID \
     24   { \
     25     0x5b446ed1, 0xe30b, 0x4faa, {0x87, 0x1a, 0x36, 0x54, 0xec, 0xa3, 0x60, 0x80 } \
     26   }
     27 
     28 typedef struct _EFI_IP4_CONFIG2_PROTOCOL EFI_IP4_CONFIG2_PROTOCOL;
     29 
     30 
     31 ///
     32 /// EFI_IP4_CONFIG2_DATA_TYPE
     33 ///
     34 typedef enum {
     35   ///
     36   /// The interface information of the communication device this EFI
     37   /// IPv4 Configuration II Protocol instance manages. This type of
     38   /// data is read only. The corresponding Data is of type
     39   /// EFI_IP4_CONFIG2_INTERFACE_INFO.
     40   ///
     41   Ip4Config2DataTypeInterfaceInfo,
     42   ///
     43   /// The general configuration policy for the EFI IPv4 network stack
     44   /// running on the communication device this EFI IPv4
     45   /// Configuration II Protocol instance manages. The policy will
     46   /// affect other configuration settings. The corresponding Data is of
     47   /// type EFI_IP4_CONFIG2_POLICY.
     48   ///
     49   Ip4Config2DataTypePolicy,
     50   ///
     51   /// The station addresses set manually for the EFI IPv4 network
     52   /// stack. It is only configurable when the policy is
     53   /// Ip4Config2PolicyStatic. The corresponding Data is of
     54   /// type EFI_IP4_CONFIG2_MANUAL_ADDRESS.
     55   ///
     56   Ip4Config2DataTypeManualAddress,
     57   ///
     58   /// The gateway addresses set manually for the EFI IPv4 network
     59   /// stack running on the communication device this EFI IPv4
     60   /// Configuration II Protocol manages. It is not configurable when
     61   /// the policy is Ip4Config2PolicyDhcp. The gateway
     62   /// addresses must be unicast IPv4 addresses. The corresponding
     63   /// Data is a pointer to an array of EFI_IPv4_ADDRESS instances.
     64   ///
     65   Ip4Config2DataTypeGateway,
     66   ///
     67   /// The DNS server list for the EFI IPv4 network stack running on
     68   /// the communication device this EFI IPv4 Configuration II
     69   /// Protocol manages. It is not configurable when the policy is
     70   /// Ip4Config2PolicyDhcp. The DNS server addresses must be
     71   /// unicast IPv4 addresses. The corresponding Data is a pointer to
     72   /// an array of EFI_IPv4_ADDRESS instances.
     73   ///
     74   Ip4Config2DataTypeDnsServer,
     75   Ip4Config2DataTypeMaximum
     76 } EFI_IP4_CONFIG2_DATA_TYPE;
     77 
     78 ///
     79 /// EFI_IP4_CONFIG2_INTERFACE_INFO related definitions
     80 ///
     81 #define EFI_IP4_CONFIG2_INTERFACE_INFO_NAME_SIZE 32
     82 
     83 ///
     84 /// EFI_IP4_CONFIG2_INTERFACE_INFO
     85 ///
     86 typedef struct {
     87   ///
     88   /// The name of the interface. It is a NULL-terminated Unicode string.
     89   ///
     90   CHAR16                Name[EFI_IP4_CONFIG2_INTERFACE_INFO_NAME_SIZE];
     91   ///
     92   /// The interface type of the network interface. See RFC 1700,
     93   /// section "Number Hardware Type".
     94   ///
     95   UINT8                 IfType;
     96   ///
     97   /// The size, in bytes, of the network interface's hardware address.
     98   ///
     99   UINT32                HwAddressSize;
    100   ///
    101   /// The hardware address for the network interface.
    102   ///
    103   EFI_MAC_ADDRESS       HwAddress;
    104   ///
    105   /// The station IPv4 address of this EFI IPv4 network stack.
    106   ///
    107   EFI_IPv4_ADDRESS      StationAddress;
    108   ///
    109   /// The subnet address mask that is associated with the station address.
    110   ///
    111   EFI_IPv4_ADDRESS      SubnetMask;
    112   ///
    113   /// Size of the following RouteTable, in bytes. May be zero.
    114   ///
    115   UINT32                RouteTableSize;
    116   ///
    117   /// The route table of the IPv4 network stack runs on this interface.
    118   /// Set to NULL if RouteTableSize is zero. Type EFI_IP4_ROUTE_TABLE is defined in
    119   /// EFI_IP4_PROTOCOL.GetModeData().
    120   ///
    121   EFI_IP4_ROUTE_TABLE   *RouteTable     OPTIONAL;
    122 } EFI_IP4_CONFIG2_INTERFACE_INFO;
    123 
    124 ///
    125 /// EFI_IP4_CONFIG2_POLICY
    126 ///
    127 typedef enum {
    128   ///
    129   /// Under this policy, the Ip4Config2DataTypeManualAddress,
    130   /// Ip4Config2DataTypeGateway and Ip4Config2DataTypeDnsServer configuration
    131   /// data are required to be set manually. The EFI IPv4 Protocol will get all
    132   /// required configuration such as IPv4 address, subnet mask and
    133   /// gateway settings from the EFI IPv4 Configuration II protocol.
    134   ///
    135   Ip4Config2PolicyStatic,
    136   ///
    137   /// Under this policy, the Ip4Config2DataTypeManualAddress,
    138   /// Ip4Config2DataTypeGateway and Ip4Config2DataTypeDnsServer configuration data are
    139   /// not allowed to set via SetData(). All of these configurations are retrieved from DHCP
    140   /// server or other auto-configuration mechanism.
    141   ///
    142   Ip4Config2PolicyDhcp,
    143   Ip4Config2PolicyMax
    144 } EFI_IP4_CONFIG2_POLICY;
    145 
    146 ///
    147 /// EFI_IP4_CONFIG2_MANUAL_ADDRESS
    148 ///
    149 typedef struct {
    150   ///
    151   /// The IPv4 unicast address.
    152   ///
    153   EFI_IPv4_ADDRESS        Address;
    154   ///
    155   /// The subnet mask.
    156   ///
    157   EFI_IPv4_ADDRESS        SubnetMask;
    158 } EFI_IP4_CONFIG2_MANUAL_ADDRESS;
    159 
    160 /**
    161   Set the configuration for the EFI IPv4 network stack running on the communication device this EFI
    162   IPv4 Configuration II Protocol instance manages.
    163 
    164   This function is used to set the configuration data of type DataType for the EFI IPv4 network stack
    165   running on the communication device this EFI IPv4 Configuration II Protocol instance manages.
    166   The successfully configured data is valid after system reset or power-off.
    167   The DataSize is used to calculate the count of structure instances in the Data for some
    168   DataType that multiple structure instances are allowed.
    169   This function is always non-blocking. When setting some typeof configuration data, an
    170   asynchronous process is invoked to check the correctness of the data, such as doing address conflict
    171   detection on the manually set local IPv4 address. EFI_NOT_READY is returned immediately to
    172   indicate that such an asynchronous process is invoked and the process is not finished yet. The caller
    173   willing to get the result of the asynchronous process is required to call RegisterDataNotify()
    174   to register an event on the specified configuration data. Once the event is signaled, the caller can call
    175   GetData()to get back the configuration data in order to know the result. For other types of
    176   configuration data that do not require an asynchronous configuration process, the result of the
    177   operation is immediately returned.
    178 
    179   @param[in]   This               Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.
    180   @param[in]   DataType           The type of data to set.
    181   @param[in]   DataSize           Size of the buffer pointed to by Data in bytes.
    182   @param[in]   Data               The data buffer to set. The type ofthe data buffer is associated
    183                                   with the DataType.
    184 
    185   @retval EFI_SUCCESS             The specified configuration data for the EFI IPv4 network stack is set
    186                                   successfully.
    187   @retval EFI_INVALID_PARAMETER   One or more of the following are TRUE:
    188                                   This is NULL.
    189                                   Data is NULL.
    190                                   One or more fields in Data do not match the requirement of the data type
    191                                   indicated by DataType.
    192   @retval EFI_WRITE_PROTECTED     The specified configuration data is read-only or the specified configuration
    193                                   data can not be set under the current policy.
    194   @retval EFI_ACCESS_DENIED       Another set operation on the specified configuration data is already in process.
    195   @retval EFI_NOT_READY           An asynchronous process is invoked to set the specified configuration data and
    196                                   the process is not finished yet.
    197   @retval EFI_BAD_BUFFER_SIZE     The DataSize does not match the size of the type indicated by DataType.
    198   @retval EFI_UNSUPPORTED         This DataType is not supported.
    199   @retval EFI_OUT_OF_RESOURCES    Required system resources could not be allocated.
    200   @retval EFI_DEVICE_ERROR        An unexpected system error or network error occurred.
    201 **/
    202 typedef
    203 EFI_STATUS
    204 (EFIAPI *EFI_IP4_CONFIG2_SET_DATA) (
    205   IN EFI_IP4_CONFIG2_PROTOCOL   *This,
    206   IN EFI_IP4_CONFIG2_DATA_TYPE  DataType,
    207   IN UINTN                      DataSize,
    208   IN VOID                       *Data
    209   );
    210 
    211 /**
    212   Get the configuration data for the EFI IPv4 network stack running on the communication device this
    213   EFI IPv4 Configuration II Protocol instance manages.
    214 
    215   This function returns the configuration data of type DataType for the EFI IPv4 network stack
    216   running on the communication device this EFI IPv4 Configuration II Protocol instance manages.
    217   The caller is responsible for allocating the buffer usedto return the specified configuration data and
    218   the required size will be returned to the caller if the size of the buffer is too small.
    219   EFI_NOT_READY is returned if the specified configuration data is not ready due to an already in
    220   progress asynchronous configuration process. The caller can call RegisterDataNotify() to
    221   register an event on the specified configuration data. Once the asynchronous configuration process is
    222   finished, the event will be signaled and a subsequent GetData() call will return the specified
    223   configuration data.
    224 
    225   @param[in]   This               Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.
    226   @param[in]   DataType           The type of data to get.
    227   @param[out]  DataSize           On input, in bytes, the size of Data. On output, in bytes, the size
    228                                   of buffer required to store the specified configuration data.
    229   @param[in]   Data               The data buffer in which the configuration data is returned. The
    230                                   type of the data buffer is associated with the DataType. Ignored
    231                                   if DataSize is 0.
    232 
    233   @retval EFI_SUCCESS             The specified configuration data is got successfully.
    234   @retval EFI_INVALID_PARAMETER   One or more of the followings are TRUE:
    235                                   This is NULL.
    236                                   DataSize is NULL.
    237                                   Data is NULL if *DataSizeis not zero.
    238   @retval EFI_BUFFER_TOO_SMALL    The size of Data is too small for the specified configuration data
    239                                   and the required size is returned in DataSize.
    240   @retval EFI_NOT_READY           The specified configuration data is not ready due to an already in
    241                                   progress asynchronous configuration process.
    242   @retval EFI_NOT_FOUND           The specified configuration data is not found.
    243 **/
    244 typedef
    245 EFI_STATUS
    246 (EFIAPI *EFI_IP4_CONFIG2_GET_DATA) (
    247   IN EFI_IP4_CONFIG2_PROTOCOL     *This,
    248   IN EFI_IP4_CONFIG2_DATA_TYPE    DataType,
    249   IN OUT UINTN                    *DataSize,
    250   IN VOID                         *Data        OPTIONAL
    251   );
    252 
    253 /**
    254   Register an event that is to be signaled whenever a configuration process on the specified
    255   configuration data is done.
    256 
    257   This function registers an event that is to be signaled whenever a configuration process on the
    258   specified configuration data is done. An event can be registered for different DataType
    259   simultaneously and the caller is responsible for determining which type of configuration data causes
    260   the signaling of the event in such case.
    261 
    262   @param[in]   This               Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.
    263   @param[in]   DataType           The type of data to unregister the event for.
    264   @param[in]   Event              The event to register.
    265 
    266   @retval EFI_SUCCESS             The notification event for the specified configuration data is
    267                                   registered.
    268   @retval EFI_INVALID_PARAMETER   This is NULL or Event is NULL.
    269   @retval EFI_UNSUPPORTED         The configuration data type specified by DataType is not supported.
    270   @retval EFI_OUT_OF_RESOURCES    Required system resources could not be allocated.
    271   @retval EFI_ACCESS_DENIED       The Event is already registered for the DataType.
    272 **/
    273 typedef
    274 EFI_STATUS
    275 (EFIAPI *EFI_IP4_CONFIG2_REGISTER_NOTIFY) (
    276   IN EFI_IP4_CONFIG2_PROTOCOL     *This,
    277   IN EFI_IP4_CONFIG2_DATA_TYPE    DataType,
    278   IN EFI_EVENT                    Event
    279   );
    280 
    281 /**
    282   Remove a previously registered event for the specified configuration data.
    283 
    284   This function removes a previously registeredevent for the specified configuration data.
    285 
    286   @param[in]   This               Pointer to the EFI_IP4_CONFIG2_PROTOCOL instance.
    287   @param[in]   DataType           The type of data to remove the previously registered event for.
    288   @param[in]   Event              The event to unregister.
    289 
    290   @retval EFI_SUCCESS             The event registered for the specified configuration data is removed.
    291   @retval EFI_INVALID_PARAMETER   This is NULL or Event is NULL.
    292   @retval EFI_NOT_FOUND           The Eventhas not been registered for the specified DataType.
    293 **/
    294 typedef
    295 EFI_STATUS
    296 (EFIAPI *EFI_IP4_CONFIG2_UNREGISTER_NOTIFY) (
    297   IN EFI_IP4_CONFIG2_PROTOCOL     *This,
    298   IN EFI_IP4_CONFIG2_DATA_TYPE    DataType,
    299   IN EFI_EVENT                    Event
    300   );
    301 
    302 ///
    303 /// The EFI_IP4_CONFIG2_PROTOCOL is designed to be the central repository for the common
    304 /// configurations and the administrator configurable settings for the EFI IPv4 network stack.
    305 /// An EFI IPv4 Configuration II Protocol instance will be installed on each communication device that
    306 /// the EFI IPv4 network stack runs on.
    307 ///
    308 struct _EFI_IP4_CONFIG2_PROTOCOL {
    309   EFI_IP4_CONFIG2_SET_DATA           SetData;
    310   EFI_IP4_CONFIG2_GET_DATA           GetData;
    311   EFI_IP4_CONFIG2_REGISTER_NOTIFY    RegisterDataNotify;
    312   EFI_IP4_CONFIG2_UNREGISTER_NOTIFY  UnregisterDataNotify;
    313 };
    314 
    315 extern EFI_GUID gEfiIp4Config2ProtocolGuid;
    316 
    317 #endif
    318 
    319