1 /** @file
2   UEFI Component Name(2) protocol implementation for UDP6 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 "Udp6Impl.h"
17 
18 //
19 // EFI Component Name Functions
20 //
21 /**
22   Retrieves a Unicode string that is the user-readable name of the driver.
23 
24   This function retrieves the user-readable name of a driver in the form of a
25   Unicode string. If the driver specified by This has a user-readable name in
26   the language specified by Language, then a pointer to the driver name is
27   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
28   by This does not support the language specified by Language,
29   then EFI_UNSUPPORTED is returned.
30 
31   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
32                                 EFI_COMPONENT_NAME_PROTOCOL instance.
33 
34   @param[in]  Language          A pointer to a Null-terminated ASCII string
35                                 array indicating the language. This is the
36                                 language of the driver name that the caller is
37                                 requesting, and it must match one of the
38                                 languages specified in SupportedLanguages. The
39                                 number of languages supported by a driver is up
40                                 to the driver writer. Language is specified
41                                 in RFC 4646 or ISO 639-2 language code format.
42 
43   @param[out]  DriverName       A pointer to the Unicode string to return.
44                                 This Unicode string is the name of the
45                                 driver specified by This in the language
46                                 specified by Language.
47 
48   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
49                                 This and the language specified by Language was
50                                 returned in DriverName.
51 
52   @retval EFI_INVALID_PARAMETER Language is NULL.
53 
54   @retval EFI_INVALID_PARAMETER DriverName is NULL.
55 
56   @retval EFI_UNSUPPORTED       The driver specified by This does not support
57                                 the language specified by Language.
58 
59 **/
60 EFI_STATUS
61 EFIAPI
62 Udp6ComponentNameGetDriverName (
63   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
64   IN  CHAR8                        *Language,
65   OUT CHAR16                       **DriverName
66   );
67 
68 
69 /**
70   Retrieves a Unicode string that is the user-readable name of the controller
71   that is being managed by a driver.
72 
73   This function retrieves the user-readable name of the controller specified by
74   ControllerHandle and ChildHandle in the form of a Unicode string. If the
75   driver specified by This has a user-readable name in the language specified by
76   Language, then a pointer to the controller name is returned in ControllerName,
77   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
78   managing the controller specified by ControllerHandle and ChildHandle,
79   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
80   support the language specified by Language, then EFI_UNSUPPORTED is returned.
81 
82   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
83                                 EFI_COMPONENT_NAME_PROTOCOL instance.
84 
85   @param[in]  ControllerHandle  The handle of a controller that the driver
86                                 specified by This is managing.  This handle
87                                 specifies the controller whose name is to be
88                                 returned.
89 
90   @param[in]  ChildHandle       The handle of the child controller to retrieve
91                                 the name of.  This is an optional parameter that
92                                 may be NULL.  It will be NULL for device
93                                 drivers.  It will also be NULL for a bus drivers
94                                 that wish to retrieve the name of the bus
95                                 controller.  It will not be NULL for a bus
96                                 driver that wishes to retrieve the name of a
97                                 child controller.
98 
99   @param[in]  Language          A pointer to a Null-terminated ASCII string
100                                 array indicating the language.  This is the
101                                 language of the driver name that the caller is
102                                 requesting, and it must match one of the
103                                 languages specified in SupportedLanguages. The
104                                 number of languages supported by a driver is up
105                                 to the driver writer. Language is specified in
106                                 RFC 4646 or ISO 639-2 language code format.
107 
108   @param[out]  ControllerName   A pointer to the Unicode string to return.
109                                 This Unicode string is the name of the
110                                 controller specified by ControllerHandle and
111                                 ChildHandle in the language specified by
112                                 Language from the point of view of the driver
113                                 specified by This.
114 
115   @retval EFI_SUCCESS           The Unicode string for the user-readable name in
116                                 the language specified by Language for the
117                                 driver specified by This was returned in
118                                 DriverName.
119 
120   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
121 
122   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
123                                 EFI_HANDLE.
124 
125   @retval EFI_INVALID_PARAMETER Language is NULL.
126 
127   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
128 
129   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
130                                 managing the controller specified by
131                                 ControllerHandle and ChildHandle.
132 
133   @retval EFI_UNSUPPORTED       The driver specified by This does not support
134                                 the language specified by Language.
135 
136 **/
137 EFI_STATUS
138 EFIAPI
139 Udp6ComponentNameGetControllerName (
140   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
141   IN  EFI_HANDLE                   ControllerHandle,
142   IN  EFI_HANDLE                   ChildHandle OPTIONAL,
143   IN  CHAR8                        *Language,
144   OUT CHAR16                       **ControllerName
145   );
146 
147 //
148 // EFI Component Name Protocol
149 //
150 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gUdp6ComponentName = {
151   Udp6ComponentNameGetDriverName,
152   Udp6ComponentNameGetControllerName,
153   "eng"
154 };
155 
156 //
157 // EFI Component Name 2 Protocol
158 //
159 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gUdp6ComponentName2 = {
160   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) Udp6ComponentNameGetDriverName,
161   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) Udp6ComponentNameGetControllerName,
162   "en"
163 };
164 
165 
166 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mUdp6DriverNameTable[] = {
167   {
168     "eng;en",
169     L"UDP6 Network Service Driver"
170   },
171   {
172     NULL,
173     NULL
174   }
175 };
176 
177 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE  *gUdp6ControllerNameTable = NULL;
178 
179 /**
180   Retrieves a Unicode string that is the user-readable name of the driver.
181 
182   This function retrieves the user-readable name of a driver in the form of a
183   Unicode string. If the driver specified by This has a user-readable name in
184   the language specified by Language, then a pointer to the driver name is
185   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
186   by This does not support the language specified by Language,
187   then EFI_UNSUPPORTED is returned.
188 
189   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
190                                 EFI_COMPONENT_NAME_PROTOCOL instance.
191 
192   @param[in]  Language          A pointer to a Null-terminated ASCII string
193                                 array indicating the language. This is the
194                                 language of the driver name that the caller is
195                                 requesting, and it must match one of the
196                                 languages specified in SupportedLanguages. The
197                                 number of languages supported by a driver is up
198                                 to the driver writer. Language is specified
199                                 in RFC 4646 or ISO 639-2 language code format.
200 
201   @param[out]  DriverName       A pointer to the Unicode string to return.
202                                 This Unicode string is the name of the
203                                 driver specified by This in the language
204                                 specified by Language.
205 
206   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
207                                 This and the language specified by Language was
208                                 returned in DriverName.
209 
210   @retval EFI_INVALID_PARAMETER Language is NULL.
211 
212   @retval EFI_INVALID_PARAMETER DriverName is NULL.
213 
214   @retval EFI_UNSUPPORTED       The driver specified by This does not support
215                                 the language specified by Language.
216 
217 **/
218 EFI_STATUS
219 EFIAPI
Udp6ComponentNameGetDriverName(IN EFI_COMPONENT_NAME_PROTOCOL * This,IN CHAR8 * Language,OUT CHAR16 ** DriverName)220 Udp6ComponentNameGetDriverName (
221   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
222   IN  CHAR8                        *Language,
223   OUT CHAR16                       **DriverName
224   )
225 {
226   return LookupUnicodeString2 (
227            Language,
228            This->SupportedLanguages,
229            mUdp6DriverNameTable,
230            DriverName,
231            (BOOLEAN) (This == &gUdp6ComponentName)
232            );
233 }
234 
235 /**
236   Update the component name for the Udp6 child handle.
237 
238   @param  Udp6[in]                  A pointer to the EFI_UDP6_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
UpdateName(IN EFI_UDP6_PROTOCOL * Udp6)246 UpdateName (
247   IN    EFI_UDP6_PROTOCOL             *Udp6
248   )
249 {
250   EFI_STATUS                       Status;
251   CHAR16                           HandleName[64];
252   EFI_UDP6_CONFIG_DATA             Udp6ConfigData;
253 
254   if (Udp6 == NULL) {
255     return EFI_INVALID_PARAMETER;
256   }
257 
258   //
259   // Format the child name into the string buffer.
260   //
261   Status = Udp6->GetModeData (Udp6, &Udp6ConfigData, NULL, NULL, NULL);
262   if (!EFI_ERROR (Status)) {
263     UnicodeSPrint (HandleName, sizeof (HandleName),
264       L"UDPv6 (SrcPort=%d, DestPort=%d)",
265       Udp6ConfigData.StationPort,
266       Udp6ConfigData.RemotePort
267       );
268   } else if (Status == EFI_NOT_STARTED) {
269     UnicodeSPrint (HandleName, sizeof (HandleName), L"UDPv6 (Not started)");
270   } else {
271     UnicodeSPrint (HandleName, sizeof (HandleName), L"UDPv6 (%r)", Status);
272   }
273 
274   if (gUdp6ControllerNameTable != NULL) {
275     FreeUnicodeStringTable (gUdp6ControllerNameTable);
276     gUdp6ControllerNameTable = NULL;
277   }
278 
279   Status = AddUnicodeString2 (
280              "eng",
281              gUdp6ComponentName.SupportedLanguages,
282              &gUdp6ControllerNameTable,
283              HandleName,
284              TRUE
285              );
286   if (EFI_ERROR (Status)) {
287     return Status;
288   }
289 
290   return AddUnicodeString2 (
291            "en",
292            gUdp6ComponentName2.SupportedLanguages,
293            &gUdp6ControllerNameTable,
294            HandleName,
295            FALSE
296            );
297 }
298 
299 /**
300   Retrieves a Unicode string that is the user-readable name of the controller
301   that is being managed by a driver.
302 
303   This function retrieves the user-readable name of the controller specified by
304   ControllerHandle and ChildHandle in the form of a Unicode string. If the
305   driver specified by This has a user-readable name in the language specified by
306   Language, then a pointer to the controller name is returned in ControllerName,
307   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
308   managing the controller specified by ControllerHandle and ChildHandle,
309   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
310   support the language specified by Language, then EFI_UNSUPPORTED is returned.
311 
312   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
313                                 EFI_COMPONENT_NAME_PROTOCOL instance.
314 
315   @param[in]  ControllerHandle  The handle of a controller that the driver
316                                 specified by This is managing.  This handle
317                                 specifies the controller whose name is to be
318                                 returned.
319 
320   @param[in]  ChildHandle       The handle of the child controller to retrieve
321                                 the name of.  This is an optional parameter that
322                                 may be NULL.  It will be NULL for device
323                                 drivers.  It will also be NULL for a bus drivers
324                                 that wish to retrieve the name of the bus
325                                 controller.  It will not be NULL for a bus
326                                 driver that wishes to retrieve the name of a
327                                 child controller.
328 
329   @param[in]  Language          A pointer to a Null-terminated ASCII string
330                                 array indicating the language.  This is the
331                                 language of the driver name that the caller is
332                                 requesting, and it must match one of the
333                                 languages specified in SupportedLanguages. The
334                                 number of languages supported by a driver is up
335                                 to the driver writer. Language is specified in
336                                 RFC 4646 or ISO 639-2 language code format.
337 
338   @param[out]  ControllerName   A pointer to the Unicode string to return.
339                                 This Unicode string is the name of the
340                                 controller specified by ControllerHandle and
341                                 ChildHandle in the language specified by
342                                 Language from the point of view of the driver
343                                 specified by This.
344 
345   @retval EFI_SUCCESS           The Unicode string for the user-readable name in
346                                 the language specified by Language for the
347                                 driver specified by This was returned in
348                                 DriverName.
349 
350   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
351 
352   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL, and it is not a valid
353                                 EFI_HANDLE.
354 
355   @retval EFI_INVALID_PARAMETER Language is NULL.
356 
357   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
358 
359   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
360                                 managing the controller specified by
361                                 ControllerHandle and ChildHandle.
362 
363   @retval EFI_UNSUPPORTED       The driver specified by This does not support
364                                 the language specified by Language.
365 
366 **/
367 EFI_STATUS
368 EFIAPI
Udp6ComponentNameGetControllerName(IN EFI_COMPONENT_NAME_PROTOCOL * This,IN EFI_HANDLE ControllerHandle,IN EFI_HANDLE ChildHandle OPTIONAL,IN CHAR8 * Language,OUT CHAR16 ** ControllerName)369 Udp6ComponentNameGetControllerName (
370   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
371   IN  EFI_HANDLE                   ControllerHandle,
372   IN  EFI_HANDLE                   ChildHandle OPTIONAL,
373   IN  CHAR8                        *Language,
374   OUT CHAR16                       **ControllerName
375   )
376 {
377   EFI_STATUS                    Status;
378   EFI_UDP6_PROTOCOL             *Udp6;
379 
380   //
381   // Only provide names for child handles.
382   //
383   if (ChildHandle == NULL) {
384     return EFI_UNSUPPORTED;
385   }
386 
387   //
388   // Make sure this driver produced ChildHandle
389   //
390   Status = EfiTestChildHandle (
391              ControllerHandle,
392              ChildHandle,
393              &gEfiIp6ProtocolGuid
394              );
395   if (EFI_ERROR (Status)) {
396     return Status;
397   }
398 
399   //
400   // Retrieve an instance of a produced protocol from ChildHandle
401   //
402   Status = gBS->OpenProtocol (
403                   ChildHandle,
404                   &gEfiUdp6ProtocolGuid,
405                   (VOID **)&Udp6,
406                   NULL,
407                   NULL,
408                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
409                   );
410   if (EFI_ERROR (Status)) {
411     return Status;
412   }
413 
414   //
415   // Update the component name for this child handle.
416   //
417   Status = UpdateName (Udp6);
418   if (EFI_ERROR (Status)) {
419     return Status;
420   }
421 
422   return LookupUnicodeString2 (
423            Language,
424            This->SupportedLanguages,
425            gUdp6ControllerNameTable,
426            ControllerName,
427            (BOOLEAN)(This == &gUdp6ComponentName)
428            );
429 }
430