1 /** @file
2   UEFI Component Name(2) protocol implementation for UDP6 driver.
3 
4   Copyright (c) 2009 - 2018, Intel Corporation. All rights reserved.<BR>
5 
6   SPDX-License-Identifier: BSD-2-Clause-Patent
7 
8 **/
9 
10 #include "Udp6Impl.h"
11 
12 //
13 // EFI Component Name Functions
14 //
15 /**
16   Retrieves a Unicode string that is the user-readable name of the driver.
17 
18   This function retrieves the user-readable name of a driver in the form of a
19   Unicode string. If the driver specified by This has a user-readable name in
20   the language specified by Language, then a pointer to the driver name is
21   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
22   by This does not support the language specified by Language,
23   then EFI_UNSUPPORTED is returned.
24 
25   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
26                                 EFI_COMPONENT_NAME_PROTOCOL instance.
27 
28   @param[in]  Language          A pointer to a Null-terminated ASCII string
29                                 array indicating the language. This is the
30                                 language of the driver name that the caller is
31                                 requesting, and it must match one of the
32                                 languages specified in SupportedLanguages. The
33                                 number of languages supported by a driver is up
34                                 to the driver writer. Language is specified
35                                 in RFC 4646 or ISO 639-2 language code format.
36 
37   @param[out]  DriverName       A pointer to the Unicode string to return.
38                                 This Unicode string is the name of the
39                                 driver specified by This in the language
40                                 specified by Language.
41 
42   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
43                                 This and the language specified by Language was
44                                 returned in DriverName.
45 
46   @retval EFI_INVALID_PARAMETER Language is NULL.
47 
48   @retval EFI_INVALID_PARAMETER DriverName is NULL.
49 
50   @retval EFI_UNSUPPORTED       The driver specified by This does not support
51                                 the language specified by Language.
52 
53 **/
54 EFI_STATUS
55 EFIAPI
56 Udp6ComponentNameGetDriverName (
57   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
58   IN  CHAR8                        *Language,
59   OUT CHAR16                       **DriverName
60   );
61 
62 
63 /**
64   Retrieves a Unicode string that is the user-readable name of the controller
65   that is being managed by a driver.
66 
67   This function retrieves the user-readable name of the controller specified by
68   ControllerHandle and ChildHandle in the form of a Unicode string. If the
69   driver specified by This has a user-readable name in the language specified by
70   Language, then a pointer to the controller name is returned in ControllerName,
71   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
72   managing the controller specified by ControllerHandle and ChildHandle,
73   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
74   support the language specified by Language, then EFI_UNSUPPORTED is returned.
75 
76   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
77                                 EFI_COMPONENT_NAME_PROTOCOL instance.
78 
79   @param[in]  ControllerHandle  The handle of a controller that the driver
80                                 specified by This is managing.  This handle
81                                 specifies the controller whose name is to be
82                                 returned.
83 
84   @param[in]  ChildHandle       The handle of the child controller to retrieve
85                                 the name of.  This is an optional parameter that
86                                 may be NULL.  It will be NULL for device
87                                 drivers.  It will also be NULL for a bus drivers
88                                 that wish to retrieve the name of the bus
89                                 controller.  It will not be NULL for a bus
90                                 driver that wishes to retrieve the name of a
91                                 child controller.
92 
93   @param[in]  Language          A pointer to a Null-terminated ASCII string
94                                 array indicating the language.  This is the
95                                 language of the driver name that the caller is
96                                 requesting, and it must match one of the
97                                 languages specified in SupportedLanguages. The
98                                 number of languages supported by a driver is up
99                                 to the driver writer. Language is specified in
100                                 RFC 4646 or ISO 639-2 language code format.
101 
102   @param[out]  ControllerName   A pointer to the Unicode string to return.
103                                 This Unicode string is the name of the
104                                 controller specified by ControllerHandle and
105                                 ChildHandle in the language specified by
106                                 Language from the point of view of the driver
107                                 specified by This.
108 
109   @retval EFI_SUCCESS           The Unicode string for the user-readable name in
110                                 the language specified by Language for the
111                                 driver specified by This was returned in
112                                 DriverName.
113 
114   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
115 
116   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it is not a valid
117                                 EFI_HANDLE.
118 
119   @retval EFI_INVALID_PARAMETER Language is NULL.
120 
121   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
122 
123   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
124                                 managing the controller specified by
125                                 ControllerHandle and ChildHandle.
126 
127   @retval EFI_UNSUPPORTED       The driver specified by This does not support
128                                 the language specified by Language.
129 
130 **/
131 EFI_STATUS
132 EFIAPI
133 Udp6ComponentNameGetControllerName (
134   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
135   IN  EFI_HANDLE                   ControllerHandle,
136   IN  EFI_HANDLE                   ChildHandle OPTIONAL,
137   IN  CHAR8                        *Language,
138   OUT CHAR16                       **ControllerName
139   );
140 
141 //
142 // EFI Component Name Protocol
143 //
144 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME_PROTOCOL  gUdp6ComponentName = {
145   Udp6ComponentNameGetDriverName,
146   Udp6ComponentNameGetControllerName,
147   "eng"
148 };
149 
150 //
151 // EFI Component Name 2 Protocol
152 //
153 GLOBAL_REMOVE_IF_UNREFERENCED EFI_COMPONENT_NAME2_PROTOCOL gUdp6ComponentName2 = {
154   (EFI_COMPONENT_NAME2_GET_DRIVER_NAME) Udp6ComponentNameGetDriverName,
155   (EFI_COMPONENT_NAME2_GET_CONTROLLER_NAME) Udp6ComponentNameGetControllerName,
156   "en"
157 };
158 
159 
160 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE mUdp6DriverNameTable[] = {
161   {
162     "eng;en",
163     L"UDP6 Network Service Driver"
164   },
165   {
166     NULL,
167     NULL
168   }
169 };
170 
171 GLOBAL_REMOVE_IF_UNREFERENCED EFI_UNICODE_STRING_TABLE  *gUdp6ControllerNameTable = NULL;
172 
173 /**
174   Retrieves a Unicode string that is the user-readable name of the driver.
175 
176   This function retrieves the user-readable name of a driver in the form of a
177   Unicode string. If the driver specified by This has a user-readable name in
178   the language specified by Language, then a pointer to the driver name is
179   returned in DriverName, and EFI_SUCCESS is returned. If the driver specified
180   by This does not support the language specified by Language,
181   then EFI_UNSUPPORTED is returned.
182 
183   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
184                                 EFI_COMPONENT_NAME_PROTOCOL instance.
185 
186   @param[in]  Language          A pointer to a Null-terminated ASCII string
187                                 array indicating the language. This is the
188                                 language of the driver name that the caller is
189                                 requesting, and it must match one of the
190                                 languages specified in SupportedLanguages. The
191                                 number of languages supported by a driver is up
192                                 to the driver writer. Language is specified
193                                 in RFC 4646 or ISO 639-2 language code format.
194 
195   @param[out]  DriverName       A pointer to the Unicode string to return.
196                                 This Unicode string is the name of the
197                                 driver specified by This in the language
198                                 specified by Language.
199 
200   @retval EFI_SUCCESS           The Unicode string for the Driver specified by
201                                 This and the language specified by Language was
202                                 returned in DriverName.
203 
204   @retval EFI_INVALID_PARAMETER Language is NULL.
205 
206   @retval EFI_INVALID_PARAMETER DriverName is NULL.
207 
208   @retval EFI_UNSUPPORTED       The driver specified by This does not support
209                                 the language specified by Language.
210 
211 **/
212 EFI_STATUS
213 EFIAPI
Udp6ComponentNameGetDriverName(IN EFI_COMPONENT_NAME_PROTOCOL * This,IN CHAR8 * Language,OUT CHAR16 ** DriverName)214 Udp6ComponentNameGetDriverName (
215   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
216   IN  CHAR8                        *Language,
217   OUT CHAR16                       **DriverName
218   )
219 {
220   return LookupUnicodeString2 (
221            Language,
222            This->SupportedLanguages,
223            mUdp6DriverNameTable,
224            DriverName,
225            (BOOLEAN) (This == &gUdp6ComponentName)
226            );
227 }
228 
229 /**
230   Update the component name for the Udp6 child handle.
231 
232   @param  Udp6[in]                  A pointer to the EFI_UDP6_PROTOCOL.
233 
234 
235   @retval EFI_SUCCESS               Update the ControllerNameTable of this instance successfully.
236   @retval EFI_INVALID_PARAMETER     The input parameter is invalid.
237 
238 **/
239 EFI_STATUS
UpdateName(IN EFI_UDP6_PROTOCOL * Udp6)240 UpdateName (
241   IN    EFI_UDP6_PROTOCOL             *Udp6
242   )
243 {
244   EFI_STATUS                       Status;
245   CHAR16                           HandleName[64];
246   EFI_UDP6_CONFIG_DATA             Udp6ConfigData;
247 
248   if (Udp6 == NULL) {
249     return EFI_INVALID_PARAMETER;
250   }
251 
252   //
253   // Format the child name into the string buffer.
254   //
255   Status = Udp6->GetModeData (Udp6, &Udp6ConfigData, NULL, NULL, NULL);
256   if (!EFI_ERROR (Status)) {
257     UnicodeSPrint (HandleName, sizeof (HandleName),
258       L"UDPv6 (SrcPort=%d, DestPort=%d)",
259       Udp6ConfigData.StationPort,
260       Udp6ConfigData.RemotePort
261       );
262   } else if (Status == EFI_NOT_STARTED) {
263     UnicodeSPrint (HandleName, sizeof (HandleName), L"UDPv6 (Not started)");
264   } else {
265     UnicodeSPrint (HandleName, sizeof (HandleName), L"UDPv6 (%r)", Status);
266   }
267 
268   if (gUdp6ControllerNameTable != NULL) {
269     FreeUnicodeStringTable (gUdp6ControllerNameTable);
270     gUdp6ControllerNameTable = NULL;
271   }
272 
273   Status = AddUnicodeString2 (
274              "eng",
275              gUdp6ComponentName.SupportedLanguages,
276              &gUdp6ControllerNameTable,
277              HandleName,
278              TRUE
279              );
280   if (EFI_ERROR (Status)) {
281     return Status;
282   }
283 
284   return AddUnicodeString2 (
285            "en",
286            gUdp6ComponentName2.SupportedLanguages,
287            &gUdp6ControllerNameTable,
288            HandleName,
289            FALSE
290            );
291 }
292 
293 /**
294   Retrieves a Unicode string that is the user-readable name of the controller
295   that is being managed by a driver.
296 
297   This function retrieves the user-readable name of the controller specified by
298   ControllerHandle and ChildHandle in the form of a Unicode string. If the
299   driver specified by This has a user-readable name in the language specified by
300   Language, then a pointer to the controller name is returned in ControllerName,
301   and EFI_SUCCESS is returned.  If the driver specified by This is not currently
302   managing the controller specified by ControllerHandle and ChildHandle,
303   then EFI_UNSUPPORTED is returned.  If the driver specified by This does not
304   support the language specified by Language, then EFI_UNSUPPORTED is returned.
305 
306   @param[in]  This              A pointer to the EFI_COMPONENT_NAME2_PROTOCOL or
307                                 EFI_COMPONENT_NAME_PROTOCOL instance.
308 
309   @param[in]  ControllerHandle  The handle of a controller that the driver
310                                 specified by This is managing.  This handle
311                                 specifies the controller whose name is to be
312                                 returned.
313 
314   @param[in]  ChildHandle       The handle of the child controller to retrieve
315                                 the name of.  This is an optional parameter that
316                                 may be NULL.  It will be NULL for device
317                                 drivers.  It will also be NULL for a bus drivers
318                                 that wish to retrieve the name of the bus
319                                 controller.  It will not be NULL for a bus
320                                 driver that wishes to retrieve the name of a
321                                 child controller.
322 
323   @param[in]  Language          A pointer to a Null-terminated ASCII string
324                                 array indicating the language.  This is the
325                                 language of the driver name that the caller is
326                                 requesting, and it must match one of the
327                                 languages specified in SupportedLanguages. The
328                                 number of languages supported by a driver is up
329                                 to the driver writer. Language is specified in
330                                 RFC 4646 or ISO 639-2 language code format.
331 
332   @param[out]  ControllerName   A pointer to the Unicode string to return.
333                                 This Unicode string is the name of the
334                                 controller specified by ControllerHandle and
335                                 ChildHandle in the language specified by
336                                 Language from the point of view of the driver
337                                 specified by This.
338 
339   @retval EFI_SUCCESS           The Unicode string for the user-readable name in
340                                 the language specified by Language for the
341                                 driver specified by This was returned in
342                                 DriverName.
343 
344   @retval EFI_INVALID_PARAMETER ControllerHandle is NULL.
345 
346   @retval EFI_INVALID_PARAMETER ChildHandle is not NULL, and it is not a valid
347                                 EFI_HANDLE.
348 
349   @retval EFI_INVALID_PARAMETER Language is NULL.
350 
351   @retval EFI_INVALID_PARAMETER ControllerName is NULL.
352 
353   @retval EFI_UNSUPPORTED       The driver specified by This is not currently
354                                 managing the controller specified by
355                                 ControllerHandle and ChildHandle.
356 
357   @retval EFI_UNSUPPORTED       The driver specified by This does not support
358                                 the language specified by Language.
359 
360 **/
361 EFI_STATUS
362 EFIAPI
Udp6ComponentNameGetControllerName(IN EFI_COMPONENT_NAME_PROTOCOL * This,IN EFI_HANDLE ControllerHandle,IN EFI_HANDLE ChildHandle OPTIONAL,IN CHAR8 * Language,OUT CHAR16 ** ControllerName)363 Udp6ComponentNameGetControllerName (
364   IN  EFI_COMPONENT_NAME_PROTOCOL  *This,
365   IN  EFI_HANDLE                   ControllerHandle,
366   IN  EFI_HANDLE                   ChildHandle OPTIONAL,
367   IN  CHAR8                        *Language,
368   OUT CHAR16                       **ControllerName
369   )
370 {
371   EFI_STATUS                    Status;
372   EFI_UDP6_PROTOCOL             *Udp6;
373 
374   //
375   // Only provide names for child handles.
376   //
377   if (ChildHandle == NULL) {
378     return EFI_UNSUPPORTED;
379   }
380 
381   //
382   // Make sure this driver produced ChildHandle
383   //
384   Status = EfiTestChildHandle (
385              ControllerHandle,
386              ChildHandle,
387              &gEfiIp6ProtocolGuid
388              );
389   if (EFI_ERROR (Status)) {
390     return Status;
391   }
392 
393   //
394   // Retrieve an instance of a produced protocol from ChildHandle
395   //
396   Status = gBS->OpenProtocol (
397                   ChildHandle,
398                   &gEfiUdp6ProtocolGuid,
399                   (VOID **)&Udp6,
400                   NULL,
401                   NULL,
402                   EFI_OPEN_PROTOCOL_GET_PROTOCOL
403                   );
404   if (EFI_ERROR (Status)) {
405     return Status;
406   }
407 
408   //
409   // Update the component name for this child handle.
410   //
411   Status = UpdateName (Udp6);
412   if (EFI_ERROR (Status)) {
413     return Status;
414   }
415 
416   return LookupUnicodeString2 (
417            Language,
418            This->SupportedLanguages,
419            gUdp6ControllerNameTable,
420            ControllerName,
421            (BOOLEAN)(This == &gUdp6ComponentName)
422            );
423 }
424