NetworkPkg/HttpBootDxe/HttpBootComponentName.c

   1 /** @file
   2   Implementation of EFI_COMPONENT_NAME_PROTOCOL and EFI_COMPONENT_NAME2_PROTOCOL protocol.
   3
   4 Copyright (c) 2015 - 2018, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include "HttpBootDxe.h"
  10
  11 ///
  12 /// Component Name Protocol instance
  13 ///
  14 GLOBAL_REMOVE_IF_UNREFERENCED
  15 EFI_COMPONENT_NAME_PROTOCOL  gHttpBootDxeComponentName = {
  16   (EFI_COMPONENT_NAME_GET_DRIVER_NAME)    HttpBootDxeComponentNameGetDriverName,
  17   (EFI_COMPONENT_NAME_GET_CONTROLLER_NAME)HttpBootDxeComponentNameGetControllerName,
  18   "eng"
  19 };
  20
  21 ///
  22 /// Component Name 2 Protocol instance
  23 ///
  24 GLOBAL_REMOVE_IF_UNREFERENCED
  25 EFI_COMPONENT_NAME2_PROTOCOL  gHttpBootDxeComponentName2 = {
  26   HttpBootDxeComponentNameGetDriverName,
  27   HttpBootDxeComponentNameGetControllerName,
  28   "en"
  29 };
  30
  31 ///
  32 /// Table of driver names
  33 ///
  34 GLOBAL_REMOVE_IF_UNREFERENCED
  35 EFI_UNICODE_STRING_TABLE mHttpBootDxeDriverNameTable[] = {
  36   { "eng;en", (CHAR16 *)L"UEFI HTTP Boot Driver" },
  37   { NULL, NULL }
  38 };
  39
  40 ///
  41 /// Table of controller names
  42 ///
  43 GLOBAL_REMOVE_IF_UNREFERENCED
  44 EFI_UNICODE_STRING_TABLE mHttpBootDxeControllerNameTable[] = {
  45   { "eng;en", (CHAR16 *)L"UEFI Http Boot Controller" },
  46   { NULL, NULL }
  47 };
  48
  49 /**
  50   Retrieves a Unicode string that is the user-readable name of the EFI Driver.
  51
  52   @param  This       A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
  53   @param  Language   A pointer to a three-character ISO 639-2 language identifier.
  54                      This is the language of the driver name that that the caller
  55                      is requesting, and it must match one of the languages specified
  56                      in SupportedLanguages.  The number of languages supported by a
  57                      driver is up to the driver writer.
  58   @param  DriverName A pointer to the Unicode string to return.  This Unicode string
  59                      is the name of the driver specified by This in the language
  60                      specified by Language.
  61
  62   @retval EFI_SUCCESS           The Unicode string for the Driver specified by This
  63                                 and the language specified by Language was returned
  64                                 in DriverName.
  65   @retval EFI_INVALID_PARAMETER Language is NULL.
  66   @retval EFI_INVALID_PARAMETER DriverName is NULL.
  67   @retval EFI_UNSUPPORTED       The driver specified by This does not support the
  68                                 language specified by Language.
  69
  70 **/
  71 EFI_STATUS
  72 EFIAPI
  73 HttpBootDxeComponentNameGetDriverName (
  74   IN EFI_COMPONENT_NAME2_PROTOCOL  *This,
  75   IN  CHAR8                        *Language,
  76   OUT CHAR16                       **DriverName
  77   )
  78 {
  79   return LookupUnicodeString2 (
  80            Language,
  81            This->SupportedLanguages,
  82            mHttpBootDxeDriverNameTable,
  83            DriverName,
  84            (BOOLEAN) (This != &gHttpBootDxeComponentName2)
  85            );
  86 }
  87
  88 /**
  89   Retrieves a Unicode string that is the user readable name of the controller
  90   that is being managed by an EFI Driver.
  91
  92   @param  This             A pointer to the EFI_COMPONENT_NAME_PROTOCOL instance.
  93   @param  ControllerHandle The handle of a controller that the driver specified by
  94                            This is managing.  This handle specifies the controller
  95                            whose name is to be returned.
  96   @param  ChildHandle      The handle of the child controller to retrieve the name
  97                            of.  This is an optional parameter that may be NULL.  It
  98                            will be NULL for device drivers.  It will also be NULL
  99                            for a bus drivers that wish to retrieve the name of the
 100                            bus controller.  It will not be NULL for a bus driver
 101                            that wishes to retrieve the name of a child controller.
 102   @param  Language         A pointer to a three character ISO 639-2 language
 103                            identifier.  This is the language of the controller name
 104                            that the caller is requesting, and it must match one
 105                            of the languages specified in SupportedLanguages.  The
 106                            number of languages supported by a driver is up to the
 107                            driver writer.
 108   @param  ControllerName   A pointer to the Unicode string to return.  This Unicode
 109                            string is the name of the controller specified by
 110                            ControllerHandle and ChildHandle in the language specified
 111                            by Language, from the point of view of the driver specified
 112                            by This.
 113
 114   @retval EFI_SUCCESS           The Unicode string for the user-readable name in the
 115                                 language specified by Language for the driver
 116                                 specified by This was returned in DriverName.
 117   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
 118   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid EFI_HANDLE.
 119   @retval EFI_INVALID_PARAMETER Language is NULL.
 120   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 121   @retval EFI_UNSUPPORTED       The driver specified by This is not currently managing
 122                                 the controller specified by ControllerHandle and
 123                                 ChildHandle.
 124   @retval EFI_UNSUPPORTED       The driver specified by This does not support the
 125                                 language specified by Language.
 126
 127 **/
 128 EFI_STATUS
 129 EFIAPI
 130 HttpBootDxeComponentNameGetControllerName (
 131   IN  EFI_COMPONENT_NAME2_PROTOCOL  *This,
 132   IN  EFI_HANDLE                    ControllerHandle,
 133   IN  EFI_HANDLE                    ChildHandle        OPTIONAL,
 134   IN  CHAR8                         *Language,
 135   OUT CHAR16                        **ControllerName
 136   )
 137 {
 138   EFI_STATUS                      Status;
 139   EFI_HANDLE                      NicHandle;
 140   UINT32                          *Id;
 141
 142   if (ControllerHandle == NULL || ChildHandle != NULL) {
 143     return EFI_UNSUPPORTED;
 144   }
 145
 146   NicHandle = HttpBootGetNicByIp4Children (ControllerHandle);
 147   if (NicHandle == NULL) {
 148     NicHandle = HttpBootGetNicByIp6Children(ControllerHandle);
 149     if (NicHandle == NULL) {
 150       return EFI_UNSUPPORTED;
 151     }
 152   }
 153
 154   //
 155   // Try to retrieve the private data by caller ID GUID.
 156   //
 157   Status = gBS->OpenProtocol (
 158                   NicHandle,
 159                   &gEfiCallerIdGuid,
 160                   (VOID **) &Id,
 161                   NULL,
 162                   NULL,
 163                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 164                   );
 165   if (EFI_ERROR (Status)) {
 166     return Status;
 167   }
 168
 169   return LookupUnicodeString2 (
 170            Language,
 171            This->SupportedLanguages,
 172            mHttpBootDxeControllerNameTable,
 173            ControllerName,
 174            (BOOLEAN)(This != &gHttpBootDxeComponentName2)
 175            );
 176
 177 }