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      1 /** @file
      2 
      3 Copyright (c) 2005 - 2012, Intel Corporation. All rights reserved.<BR>
      4 This program and the accompanying materials
      5 are licensed and made available under the terms and conditions of the BSD License
      6 which accompanies this distribution.  The full text of the license may be found at<BR>
      7 http://opensource.org/licenses/bsd-license.php
      8 
      9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     11 
     12 **/
     13 
     14 #include "Ip4Impl.h"
     15 
     16 //
     17 // EFI Component Name Functions
     18 //
     19 /**
     20   Retrieves a Unicode string that is the user readable name of the driver.
     21 
     22   This function retrieves the user readable name of a driver in the form of a
     23   Unicode string. If the driver specified by This has a user readable name in
     24   the language specified by Language, then a pointer to the driver name is
     25   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
     26   by This does not support the language specified by Language,
     27   then EFI_UNSUPPORTED is returned.
     28 
     29   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
     30                                 EFI_COMPONENT_NAME_PROTOCOL instance.
     31 
     32   @param[in]  Language          A pointer to a Null-terminated ASCII string
     33                                 array indicating the language. This is the
     34                                 language of the driver name that the caller is
     35                                 requesting, and it must match one of the
     36                                 languages specified in SupportedLanguages. The
     37                                 number of languages supported by a driver is up
     38                                 to the driver writer. Language is specified
     39                                 in RFC 4646 or ISO 639-2 language code format.
     40 
     41   @param[out]  DriverName       A pointer to the Unicode string to return.
     42                                 This Unicode string is the name of the
     43                                 driver specified by This in the language
     44                                 specified by Language.
     45 
     46   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
     47                                 This and the language specified by Language was
     48                                 returned in DriverName.
     49 
     50   @retval EFI_INVALID_PARAMETER Language is NULL.
     51 
     52   @retval EFI_INVALID_PARAMETER DriverName is NULL.
     53 
     54   @retval EFI_UNSUPPORTED       The driver specified by This does not support
     55                                 the language specified by Language.
     56 
     57 **/
     58 EFI_STATUS
     59 EFIAPI
     60 Ip4ComponentNameGetDriverName (
     61   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
     62   IN  CHAR8                        *Language,
     63   OUT CHAR16                       **DriverName
     64   );
     65 
     66 
     67 /**
     68   Retrieves a Unicode string that is the user readable name of the controller
     69   that is being managed by a driver.
     70 
     71   This function retrieves the user readable name of the controller specified by
     72   ControllerHandle and ChildHandle in the form of a Unicode string. If the
     73   driver specified by This has a user readable name in the language specified by
     74   Language, then a pointer to the controller name is returned in ControllerName,
     75   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
     76   managing the controller specified by ControllerHandle and ChildHandle,
     77   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
     78   support the language specified by Language, then EFI_UNSUPPORTED is returned.
     79 
     80   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
     81                                 EFI_COMPONENT_NAME_PROTOCOL instance.
     82 
     83   @param[in]  ControllerHandle  The handle of a controller that the driver
     84                                 specified by This is managing.  This handle
     85                                 specifies the controller whose name is to be
     86                                 returned.
     87 
     88   @param[in]  ChildHandle       The handle of the child controller to retrieve
     89                                 the name of.  This is an optional parameter that
     90                                 may be NULL.  It will be NULL for device
     91                                 drivers.  It will also be NULL for a bus drivers
     92                                 that wish to retrieve the name of the bus
     93                                 controller.  It will not be NULL for a bus
     94                                 driver that wishes to retrieve the name of a
     95                                 child controller.
     96 
     97   @param[in]  Language          A pointer to a Null-terminated ASCII string
     98                                 array indicating the language.  This is the
     99                                 language of the driver name that the caller is
    100                                 requesting, and it must match one of the
    101                                 languages specified in SupportedLanguages. The
    102                                 number of languages supported by a driver is up
    103                                 to the driver writer. Language is specified in
    104                                 RFC 4646 or ISO 639-2 language code format.
    105 
    106   @param[out]  ControllerName   A pointer to the Unicode string to return.
    107                                 This Unicode string is the name of the
    108                                 controller specified by ControllerHandle and
    109                                 ChildHandle in the language specified by
    110                                 Language from the point of view of the driver
    111                                 specified by This.
    112 
    113   @retval EFI_SUCCESS           The Unicode string for the user readable name in
    114                                 the language specified by Language for the
    115                                 driver specified by This was returned in
    116                                 DriverName.
    117 
    118   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
    119 
    120   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
    121                                 EFI_HANDLE.
    122 
    123   @retval EFI_INVALID_PARAMETER Language is NULL.
    124 
    125   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
    126 
    127   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
    128                                 managing the controller specified by
    129                                 ControllerHandle and ChildHandle.
    130 
    131   @retval EFI_UNSUPPORTED       The driver specified by This does not support
    132                                 the language specified by Language.
    133 
    134 **/
    135 EFI_STATUS
    136 EFIAPI
    137 Ip4ComponentNameGetControllerName (
    138   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
    139   IN  EFI_HANDLE                                      ControllerHandle,
    140   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
    141   IN  CHAR8                                           *Language,
    142   OUT CHAR16                                          **ControllerName
    143   );
    144 
    145 
    146 //
    147 // EFI Component Name Protocol
    148 //
    149 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gIp4ComponentName = {
    150   Ip4ComponentNameGetDriverName,
    151   Ip4ComponentNameGetControllerName,
    152   "eng"
    153 };
    154 
    155 //
    156 // EFI Component Name 2 Protocol
    157 //
    158 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gIp4ComponentName2 = {
    159   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) Ip4ComponentNameGetDriverName,
    160   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) Ip4ComponentNameGetControllerName,
    161   "en"
    162 };
    163 
    164 
    165 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mIp4DriverNameTable[] = {
    166   {
    167     "eng;en",
    168     L"IP4 Network Service Driver"
    169   },
    170   {
    171     NULL,
    172     NULL
    173   }
    174 };
    175 
    176 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE  *gIp4ControllerNameTable = NULL;
    177 
    178 /**
    179   Retrieves a Unicode string that is the user readable name of the driver.
    180 
    181   This function retrieves the user readable name of a driver in the form of a
    182   Unicode string. If the driver specified by This has a user readable name in
    183   the language specified by Language, then a pointer to the driver name is
    184   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
    185   by This does not support the language specified by Language,
    186   then EFI_UNSUPPORTED is returned.
    187 
    188   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
    189                                 EFI_COMPONENT_NAME_PROTOCOL instance.
    190 
    191   @param[in]  Language          A pointer to a Null-terminated ASCII string
    192                                 array indicating the language. This is the
    193                                 language of the driver name that the caller is
    194                                 requesting, and it must match one of the
    195                                 languages specified in SupportedLanguages. The
    196                                 number of languages supported by a driver is up
    197                                 to the driver writer. Language is specified
    198                                 in RFC 4646 or ISO 639-2 language code format.
    199 
    200   @param[out]  DriverName       A pointer to the Unicode string to return.
    201                                 This Unicode string is the name of the
    202                                 driver specified by This in the language
    203                                 specified by Language.
    204 
    205   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
    206                                 This and the language specified by Language was
    207                                 returned in DriverName.
    208 
    209   @retval EFI_INVALID_PARAMETER Language is NULL.
    210 
    211   @retval EFI_INVALID_PARAMETER DriverName is NULL.
    212 
    213   @retval EFI_UNSUPPORTED       The driver specified by This does not support
    214                                 the language specified by Language.
    215 
    216 **/
    217 EFI_STATUS
    218 EFIAPI
    219 Ip4ComponentNameGetDriverName (
    220   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
    221   IN  CHAR8                        *Language,
    222   OUT CHAR16                       **DriverName
    223   )
    224 {
    225   return LookupUnicodeString2 (
    226            Language,
    227            This->SupportedLanguages,
    228            mIp4DriverNameTable,
    229            DriverName,
    230            (BOOLEAN)(This == &gIp4ComponentName)
    231            );
    232 
    233 }
    234 
    235 /**
    236   Update the component name for the IP4 child handle.
    237 
    238   @param  Ip4[in]                 A pointer to the EFI_IP4_PROTOCOL.
    239 
    240 
    241   @retval EFI_SUCCESS             Update the ControllerNameTable of this instance successfully.
    242   @retval EFI_INVALID_PARAMETER   The input parameter is invalid.
    243 
    244 **/
    245 EFI_STATUS
    246 UpdateName (
    247   IN     EFI_IP4_PROTOCOL         *Ip4
    248   )
    249 {
    250   EFI_STATUS                       Status;
    251   CHAR16                           HandleName[80];
    252   EFI_IP4_MODE_DATA                Ip4ModeData;
    253 
    254   if (Ip4 == NULL) {
    255     return EFI_INVALID_PARAMETER;
    256   }
    257 
    258   //
    259   // Format the child name into the string buffer as:
    260   // IPv4 (SrcIP=127.0.0.1, DestIP=127.0.0.1)
    261   //
    262   Status = Ip4->GetModeData (Ip4, &Ip4ModeData, NULL, NULL);
    263   if (EFI_ERROR (Status)) {
    264     return Status;
    265   }
    266 
    267   if (!Ip4ModeData.IsStarted || !Ip4ModeData.IsConfigured) {
    268     UnicodeSPrint (HandleName, sizeof (HandleName), L"IPv4 (Not started)");
    269   } else {
    270     UnicodeSPrint (HandleName, sizeof (HandleName),
    271       L"IPv4 (SrcIP=%d.%d.%d.%d)",
    272       Ip4ModeData.ConfigData.StationAddress.Addr[0],
    273       Ip4ModeData.ConfigData.StationAddress.Addr[1],
    274       Ip4ModeData.ConfigData.StationAddress.Addr[2],
    275       Ip4ModeData.ConfigData.StationAddress.Addr[3]
    276       );
    277   }
    278 
    279   if (gIp4ControllerNameTable != NULL) {
    280     FreeUnicodeStringTable (gIp4ControllerNameTable);
    281     gIp4ControllerNameTable = NULL;
    282   }
    283   Status = AddUnicodeString2 (
    284              "eng",
    285              gIp4ComponentName.SupportedLanguages,
    286              &gIp4ControllerNameTable,
    287              HandleName,
    288              TRUE
    289              );
    290   if (EFI_ERROR (Status)) {
    291     return Status;
    292   }
    293 
    294   return AddUnicodeString2 (
    295            "en",
    296            gIp4ComponentName2.SupportedLanguages,
    297            &gIp4ControllerNameTable,
    298            HandleName,
    299            FALSE
    300            );
    301 }
    302 
    303 /**
    304   Retrieves a Unicode string that is the user readable name of the controller
    305   that is being managed by a driver.
    306 
    307   This function retrieves the user readable name of the controller specified by
    308   ControllerHandle and ChildHandle in the form of a Unicode string. If the
    309   driver specified by This has a user readable name in the language specified by
    310   Language, then a pointer to the controller name is returned in ControllerName,
    311   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
    312   managing the controller specified by ControllerHandle and ChildHandle,
    313   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
    314   support the language specified by Language, then EFI_UNSUPPORTED is returned.
    315 
    316   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
    317                                 EFI_COMPONENT_NAME_PROTOCOL instance.
    318 
    319   @param[in]  ControllerHandle  The handle of a controller that the driver
    320                                 specified by This is managing.  This handle
    321                                 specifies the controller whose name is to be
    322                                 returned.
    323 
    324   @param[in]  ChildHandle       The handle of the child controller to retrieve
    325                                 the name of.  This is an optional parameter that
    326                                 may be NULL.  It will be NULL for device
    327                                 drivers.  It will also be NULL for a bus drivers
    328                                 that wish to retrieve the name of the bus
    329                                 controller.  It will not be NULL for a bus
    330                                 driver that wishes to retrieve the name of a
    331                                 child controller.
    332 
    333   @param[in]  Language          A pointer to a Null-terminated ASCII string
    334                                 array indicating the language.  This is the
    335                                 language of the driver name that the caller is
    336                                 requesting, and it must match one of the
    337                                 languages specified in SupportedLanguages. The
    338                                 number of languages supported by a driver is up
    339                                 to the driver writer. Language is specified in
    340                                 RFC 4646 or ISO 639-2 language code format.
    341 
    342   @param[out]  ControllerName   A pointer to the Unicode string to return.
    343                                 This Unicode string is the name of the
    344                                 controller specified by ControllerHandle and
    345                                 ChildHandle in the language specified by
    346                                 Language from the point of view of the driver
    347                                 specified by This.
    348 
    349   @retval EFI_SUCCESS           The Unicode string for the user readable name in
    350                                 the language specified by Language for the
    351                                 driver specified by This was returned in
    352                                 DriverName.
    353 
    354   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
    355 
    356   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
    357                                 EFI_HANDLE.
    358 
    359   @retval EFI_INVALID_PARAMETER Language is NULL.
    360 
    361   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
    362 
    363   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
    364                                 managing the controller specified by
    365                                 ControllerHandle and ChildHandle.
    366 
    367   @retval EFI_UNSUPPORTED       The driver specified by This does not support
    368                                 the language specified by Language.
    369 
    370 **/
    371 EFI_STATUS
    372 EFIAPI
    373 Ip4ComponentNameGetControllerName (
    374   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
    375   IN  EFI_HANDLE                                      ControllerHandle,
    376   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
    377   IN  CHAR8                                           *Language,
    378   OUT CHAR16                                          **ControllerName
    379   )
    380 {
    381   EFI_STATUS                    Status;
    382   EFI_IP4_PROTOCOL              *Ip4;
    383 
    384   //
    385   // Only provide names for child handles.
    386   //
    387   if (ChildHandle == NULL) {
    388     return EFI_UNSUPPORTED;
    389   }
    390 
    391   //
    392   // Make sure this driver produced ChildHandle
    393   //
    394   Status = EfiTestChildHandle (
    395              ControllerHandle,
    396              ChildHandle,
    397              &gEfiManagedNetworkProtocolGuid
    398              );
    399   if (EFI_ERROR (Status)) {
    400     return Status;
    401   }
    402 
    403   //
    404   // Retrieve an instance of a produced protocol from ChildHandle
    405   //
    406   Status = gBS->OpenProtocol (
    407                   ChildHandle,
    408                   &gEfiIp4ProtocolGuid,
    409                   (VOID **)&Ip4,
    410                   NULL,
    411                   NULL,
    412                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
    413                   );
    414   if (EFI_ERROR (Status)) {
    415     return Status;
    416   }
    417 
    418   //
    419   // Update the component name for this child handle.
    420   //
    421   Status = UpdateName (Ip4);
    422   if (EFI_ERROR (Status)) {
    423     return Status;
    424   }
    425 
    426   return LookupUnicodeString2 (
    427            Language,
    428            This->SupportedLanguages,
    429            gIp4ControllerNameTable,
    430            ControllerName,
    431            (BOOLEAN)(This == &gIp4ComponentName)
    432            );
    433 }
    434 
    435