NetworkPkg/Dhcp6Dxe/ComponentName.c

   1 /** @file
   2   UEFI Component Name(2) protocol implementation for Dhcp6 driver.
   3
   4   Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
   5
   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
   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 **/
  15
  16 #include "Dhcp6Impl.h"
  17
  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 Dhcp6ComponentNameGetDriverName (
  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 attempt to retrieve the name of the bus
  93                                 controller.  It will not be NULL for a bus
  94                                 driver that attempts 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 Dhcp6ComponentNameGetControllerName (
 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    gDhcp6ComponentName = {
 150   Dhcp6ComponentNameGetDriverName,
 151   Dhcp6ComponentNameGetControllerName,
 152   "eng"
 153 };
 154
 155 //
 156 // EFI Component Name 2 Protocol
 157 //
 158 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL   gDhcp6ComponentName2 = {
 159   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) Dhcp6ComponentNameGetDriverName,
 160   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) Dhcp6ComponentNameGetControllerName,
 161   "en"
 162 };
 163
 164 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE       mDhcp6DriverNameTable[] = {
 165   {
 166     "eng;en",
 167     L"DHCP6 Protocol Driver"
 168   },
 169   {
 170     NULL,
 171     NULL
 172   }
 173 };
 174
 175 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE   *gDhcp6ControllerNameTable = NULL;
 176
 177 CHAR16 *mDhcp6ControllerName[] = {
 178   L"DHCPv6 (State=0, Init)",
 179   L"DHCPv6 (State=1, Selecting)",
 180   L"DHCPv6 (State=2, Requesting)",
 181   L"DHCPv6 (State=3, Declining)",
 182   L"DHCPv6 (State=4, Confirming)",
 183   L"DHCPv6 (State=5, Releasing)",
 184   L"DHCPv6 (State=6, Bound)",
 185   L"DHCPv6 (State=7, Renewing)",
 186   L"DHCPv6 (State=8, Rebinding)"
 187 };
 188
 189 /**
 190   Retrieves a Unicode string that is the user-readable name of the driver.
 191
 192   This function retrieves the user-readable name of a driver in the form of a
 193   Unicode string. If the driver specified by This has a user-readable name in
 194   the language specified by Language, then a pointer to the driver name is
 195   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
 196   by This does not support the language specified by Language,
 197   then EFI_UNSUPPORTED is returned.
 198
 199   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 200                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 201
 202   @param[in]  Language          A pointer to a Null-terminated ASCII string
 203                                 array indicating the language. This is the
 204                                 language of the driver name that the caller is
 205                                 requesting, and it must match one of the
 206                                 languages specified in SupportedLanguages. The
 207                                 number of languages supported by a driver is up
 208                                 to the driver writer. Language is specified
 209                                 in RFC 4646 or ISO 639-2 language code format.
 210
 211   @param[out]  DriverName       A pointer to the Unicode string to return.
 212                                 This Unicode string is the name of the
 213                                 driver specified by This in the language
 214                                 specified by Language.
 215
 216   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
 217                                 This and the language specified by Language was
 218                                 returned in DriverName.
 219
 220   @retval EFI_INVALID_PARAMETER Language is NULL.
 221
 222   @retval EFI_INVALID_PARAMETER DriverName is NULL.
 223
 224   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 225                                 the language specified by Language.
 226
 227 **/
 228 EFI_STATUS
 229 EFIAPI
 230 Dhcp6ComponentNameGetDriverName (
 231   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
 232   IN  CHAR8                        *Language,
 233   OUT CHAR16                       **DriverName
 234   )
 235 {
 236   return LookupUnicodeString2 (
 237            Language,
 238            This->SupportedLanguages,
 239            mDhcp6DriverNameTable,
 240            DriverName,
 241            (BOOLEAN)(This == &gDhcp6ComponentName)
 242            );
 243 }
 244
 245 /**
 246   Update the component name for the Dhcp6 child handle.
 247
 248   @param  Dhcp6[in]                   A pointer to the EFI_DHCP6_PROTOCOL.
 249
 250
 251   @retval EFI_SUCCESS                 Update the ControllerNameTable of this instance successfully.
 252   @retval EFI_INVALID_PARAMETER       The input parameter is invalid.
 253
 254 **/
 255 EFI_STATUS
 256 UpdateName (
 257   IN   EFI_DHCP6_PROTOCOL             *Dhcp6
 258   )
 259 {
 260   EFI_STATUS                       Status;
 261   EFI_DHCP6_MODE_DATA              Dhcp6ModeData;
 262   CHAR16                           HandleName[64];
 263
 264   if (Dhcp6 == NULL) {
 265     return EFI_INVALID_PARAMETER;
 266   }
 267
 268   //
 269   // Format the child name into the string buffer.
 270   //
 271   Status = Dhcp6->GetModeData (Dhcp6, &Dhcp6ModeData, NULL);
 272   if (EFI_ERROR (Status)) {
 273     return Status;
 274   }
 275
 276   if (gDhcp6ControllerNameTable != NULL) {
 277     FreeUnicodeStringTable (gDhcp6ControllerNameTable);
 278     gDhcp6ControllerNameTable = NULL;
 279   }
 280
 281   if (Dhcp6ModeData.Ia == NULL) {
 282     UnicodeSPrint (HandleName, sizeof (HandleName), L"DHCPv6 (No configured IA)");
 283   } else {
 284     StrCpy (HandleName, mDhcp6ControllerName[Dhcp6ModeData.Ia->State]);
 285   }
 286
 287   Status = AddUnicodeString2 (
 288              "eng",
 289              gDhcp6ComponentName.SupportedLanguages,
 290              &gDhcp6ControllerNameTable,
 291              HandleName,
 292              TRUE
 293              );
 294   if (EFI_ERROR (Status)) {
 295     return Status;
 296   }
 297
 298   return AddUnicodeString2 (
 299            "en",
 300            gDhcp6ComponentName2.SupportedLanguages,
 301            &gDhcp6ControllerNameTable,
 302            HandleName,
 303            FALSE
 304            );
 305 }
 306
 307 /**
 308   Retrieves a Unicode string that is the user-readable name of the controller
 309   that is being managed by a driver.
 310
 311   This function retrieves the user-readable name of the controller specified by
 312   ControllerHandle and ChildHandle in the form of a Unicode string. If the
 313   driver specified by This has a user-readable name in the language specified by
 314   Language, then a pointer to the controller name is returned in ControllerName,
 315   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
 316   managing the controller specified by ControllerHandle and ChildHandle,
 317   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
 318   support the language specified by Language, then EFI_UNSUPPORTED is returned.
 319
 320   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
 321                                 EFI_COMPONENT_NAME_PROTOCOL instance.
 322
 323   @param[in]  ControllerHandle  The handle of a controller that the driver
 324                                 specified by This is managing.  This handle
 325                                 specifies the controller whose name is to be
 326                                 returned.
 327
 328   @param[in]  ChildHandle       The handle of the child controller to retrieve
 329                                 the name of.  This is an optional parameter that
 330                                 may be NULL.  It will be NULL for device
 331                                 drivers.  It will also be NULL for a bus drivers
 332                                 that wish to retrieve the name of the bus
 333                                 controller.  It will not be NULL for a bus
 334                                 driver that wishes to retrieve the name of a
 335                                 child controller.
 336
 337   @param[in]  Language          A pointer to a Null-terminated ASCII string
 338                                 array indicating the language.  This is the
 339                                 language of the driver name that the caller is
 340                                 requesting, and it must match one of the
 341                                 languages specified in SupportedLanguages. The
 342                                 number of languages supported by a driver is up
 343                                 to the driver writer. Language is specified in the
 344                                 RFC 4646 or ISO 639-2 language code format.
 345
 346   @param[out]  ControllerName   A pointer to the Unicode string to return.
 347                                 This Unicode string is the name of the
 348                                 controller specified by ControllerHandle and
 349                                 ChildHandle in the language specified by
 350                                 Language, from the point of view of the driver
 351                                 specified by This.
 352
 353   @retval EFI_SUCCESS           The Unicode string for the user-readable name in
 354                                 the language specified by Language for the
 355                                 driver specified by This was returned in
 356                                 DriverName.
 357
 358   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
 359
 360   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL, and it is not a valid
 361                                 EFI_HANDLE.
 362
 363   @retval EFI_INVALID_PARAMETER Language is NULL.
 364
 365   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
 366
 367   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
 368                                 managing the controller specified by
 369                                 ControllerHandle and ChildHandle.
 370
 371   @retval EFI_UNSUPPORTED       The driver specified by This does not support
 372                                 the language specified by Language.
 373
 374 **/
 375 EFI_STATUS
 376 EFIAPI
 377 Dhcp6ComponentNameGetControllerName (
 378   IN  EFI_COMPONENT_NAME_PROTOCOL                     *This,
 379   IN  EFI_HANDLE                                      ControllerHandle,
 380   IN  EFI_HANDLE                                      ChildHandle        OPTIONAL,
 381   IN  CHAR8                                           *Language,
 382   OUT CHAR16                                          **ControllerName
 383   )
 384 {
 385   EFI_STATUS                    Status;
 386   EFI_DHCP6_PROTOCOL            *Dhcp6;
 387
 388   //
 389   // Only provide names for child handles.
 390   //
 391   if (ChildHandle == NULL) {
 392     return EFI_UNSUPPORTED;
 393   }
 394
 395   //
 396   // Make sure this driver produced ChildHandle
 397   //
 398   Status = EfiTestChildHandle (
 399              ControllerHandle,
 400              ChildHandle,
 401              &gEfiUdp6ProtocolGuid
 402              );
 403   if (EFI_ERROR (Status)) {
 404     return Status;
 405   }
 406
 407   //
 408   // Retrieve an instance of a produced protocol from ChildHandle
 409   //
 410   Status = gBS->OpenProtocol (
 411                   ChildHandle,
 412                   &gEfiDhcp6ProtocolGuid,
 413                   (VOID **)&Dhcp6,
 414                   NULL,
 415                   NULL,
 416                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
 417                   );
 418   if (EFI_ERROR (Status)) {
 419     return Status;
 420   }
 421
 422   //
 423   // Update the component name for this child handle.
 424   //
 425   Status = UpdateName (Dhcp6);
 426   if (EFI_ERROR (Status)) {
 427     return Status;
 428   }
 429
 430   return LookupUnicodeString2 (
 431            Language,
 432            This->SupportedLanguages,
 433            gDhcp6ControllerNameTable,
 434            ControllerName,
 435            (BOOLEAN)(This == &gDhcp6ComponentName)
 436            );
 437 }
 438