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1/** @file\r
2 Definition for Device Path library.\r
3\r
4Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>\r
5This program and the accompanying materials\r
6are licensed and made available under the terms and conditions of the BSD License\r
7which accompanies this distribution. The full text of the license may be found at\r
8http://opensource.org/licenses/bsd-license.php\r
9\r
10THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
11WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
12\r
13**/\r
14#ifndef _UEFI_DEVICE_PATH_LIB_H_\r
15#define _UEFI_DEVICE_PATH_LIB_H_\r
16\r
17#include <stdio.h>\r
18#include <stdlib.h>\r
19#include <string.h>\r
20#include <ctype.h>\r
21#include <assert.h>\r
22#ifdef __GNUC__\r
23#include <unistd.h>\r
24#else\r
25#include <direct.h>\r
26#endif\r
27#include <Common/UefiBaseTypes.h>\r
28#include <Protocol/DevicePath.h>\r
29#include <Protocol/DevicePathUtilities.h>\r
30#include "CommonLib.h"\r
31#include "EfiUtilityMsgs.h"\r
32\r
33#define END_DEVICE_PATH_LENGTH (sizeof (EFI_DEVICE_PATH_PROTOCOL))\r
34#define MAX_DEVICE_PATH_NODE_COUNT 1024\r
35#define SIZE_64KB 0x00010000\r
36\r
37//\r
38// Private Data structure\r
39//\r
40typedef\r
41EFI_DEVICE_PATH_PROTOCOL *\r
42(*DEVICE_PATH_FROM_TEXT) (\r
43 IN CHAR16 *Str\r
44 );\r
45\r
46typedef struct {\r
47 CHAR16 *Str;\r
48 UINTN Count;\r
49 UINTN Capacity;\r
50} POOL_PRINT;\r
51\r
52\r
53typedef struct {\r
54 CHAR16 *DevicePathNodeText;\r
55 DEVICE_PATH_FROM_TEXT Function;\r
56} DEVICE_PATH_FROM_TEXT_TABLE;\r
57\r
58typedef struct {\r
59 BOOLEAN ClassExist;\r
60 UINT8 Class;\r
61 BOOLEAN SubClassExist;\r
62 UINT8 SubClass;\r
63} USB_CLASS_TEXT;\r
64\r
65#define USB_CLASS_AUDIO 1\r
66#define USB_CLASS_CDCCONTROL 2\r
67#define USB_CLASS_HID 3\r
68#define USB_CLASS_IMAGE 6\r
69#define USB_CLASS_PRINTER 7\r
70#define USB_CLASS_MASS_STORAGE 8\r
71#define USB_CLASS_HUB 9\r
72#define USB_CLASS_CDCDATA 10\r
73#define USB_CLASS_SMART_CARD 11\r
74#define USB_CLASS_VIDEO 14\r
75#define USB_CLASS_DIAGNOSTIC 220\r
76#define USB_CLASS_WIRELESS 224\r
77\r
78#define USB_CLASS_RESERVE 254\r
79#define USB_SUBCLASS_FW_UPDATE 1\r
80#define USB_SUBCLASS_IRDA_BRIDGE 2\r
81#define USB_SUBCLASS_TEST 3\r
82\r
83#define RFC_1700_UDP_PROTOCOL 17\r
84#define RFC_1700_TCP_PROTOCOL 6\r
85\r
86#pragma pack(1)\r
87\r
88typedef struct {\r
89 EFI_DEVICE_PATH_PROTOCOL Header;\r
90 EFI_GUID Guid;\r
91 UINT8 VendorDefinedData[1];\r
92} VENDOR_DEFINED_HARDWARE_DEVICE_PATH;\r
93\r
94typedef struct {\r
95 EFI_DEVICE_PATH_PROTOCOL Header;\r
96 EFI_GUID Guid;\r
97 UINT8 VendorDefinedData[1];\r
98} VENDOR_DEFINED_MESSAGING_DEVICE_PATH;\r
99\r
100typedef struct {\r
101 EFI_DEVICE_PATH_PROTOCOL Header;\r
102 EFI_GUID Guid;\r
103 UINT8 VendorDefinedData[1];\r
104} VENDOR_DEFINED_MEDIA_DEVICE_PATH;\r
105\r
106typedef struct {\r
107 EFI_DEVICE_PATH_PROTOCOL Header;\r
108 UINT32 Hid;\r
109 UINT32 Uid;\r
110 UINT32 Cid;\r
111 CHAR8 HidUidCidStr[3];\r
112} ACPI_EXTENDED_HID_DEVICE_PATH_WITH_STR;\r
113\r
114typedef struct {\r
115 EFI_DEVICE_PATH_PROTOCOL Header;\r
116 UINT16 NetworkProtocol;\r
117 UINT16 LoginOption;\r
118 UINT64 Lun;\r
119 UINT16 TargetPortalGroupTag;\r
120 CHAR8 TargetName[1];\r
121} ISCSI_DEVICE_PATH_WITH_NAME;\r
122\r
123typedef struct {\r
124 EFI_DEVICE_PATH_PROTOCOL Header;\r
125 EFI_GUID Guid;\r
126 UINT8 VendorDefinedData[1];\r
127} VENDOR_DEVICE_PATH_WITH_DATA;\r
128\r
129#pragma pack()\r
130\r
131/**\r
132 Returns the size of a device path in bytes.\r
133\r
134 This function returns the size, in bytes, of the device path data structure\r
135 specified by DevicePath including the end of device path node.\r
136 If DevicePath is NULL or invalid, then 0 is returned.\r
137\r
138 @param DevicePath A pointer to a device path data structure.\r
139\r
140 @retval 0 If DevicePath is NULL or invalid.\r
141 @retval Others The size of a device path in bytes.\r
142\r
143**/\r
144UINTN\r
145UefiDevicePathLibGetDevicePathSize (\r
146 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath\r
147 );\r
148\r
149/**\r
150 Creates a new copy of an existing device path.\r
151\r
152 This function allocates space for a new copy of the device path specified by DevicePath.\r
153 If DevicePath is NULL, then NULL is returned. If the memory is successfully\r
154 allocated, then the contents of DevicePath are copied to the newly allocated\r
155 buffer, and a pointer to that buffer is returned. Otherwise, NULL is returned.\r
156 The memory for the new device path is allocated from EFI boot services memory.\r
157 It is the responsibility of the caller to free the memory allocated.\r
158\r
159 @param DevicePath A pointer to a device path data structure.\r
160\r
161 @retval NULL DevicePath is NULL or invalid.\r
162 @retval Others A pointer to the duplicated device path.\r
163\r
164**/\r
165EFI_DEVICE_PATH_PROTOCOL *\r
166UefiDevicePathLibDuplicateDevicePath (\r
167 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath\r
168 );\r
169\r
170/**\r
171 Creates a new device path by appending a second device path to a first device path.\r
172\r
173 This function creates a new device path by appending a copy of SecondDevicePath\r
174 to a copy of FirstDevicePath in a newly allocated buffer. Only the end-of-device-path\r
175 device node from SecondDevicePath is retained. The newly created device path is\r
176 returned. If FirstDevicePath is NULL, then it is ignored, and a duplicate of\r
177 SecondDevicePath is returned. If SecondDevicePath is NULL, then it is ignored,\r
178 and a duplicate of FirstDevicePath is returned. If both FirstDevicePath and\r
179 SecondDevicePath are NULL, then a copy of an end-of-device-path is returned.\r
180\r
181 If there is not enough memory for the newly allocated buffer, then NULL is returned.\r
182 The memory for the new device path is allocated from EFI boot services memory.\r
183 It is the responsibility of the caller to free the memory allocated.\r
184\r
185 @param FirstDevicePath A pointer to a device path data structure.\r
186 @param SecondDevicePath A pointer to a device path data structure.\r
187\r
188 @retval NULL If there is not enough memory for the newly allocated buffer.\r
189 @retval NULL If FirstDevicePath or SecondDevicePath is invalid.\r
190 @retval Others A pointer to the new device path if success.\r
191 Or a copy an end-of-device-path if both FirstDevicePath and SecondDevicePath are NULL.\r
192\r
193**/\r
194EFI_DEVICE_PATH_PROTOCOL *\r
195UefiDevicePathLibAppendDevicePath (\r
196 CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL\r
197 CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL\r
198 );\r
199\r
200/**\r
201 Creates a new path by appending the device node to the device path.\r
202\r
203 This function creates a new device path by appending a copy of the device node\r
204 specified by DevicePathNode to a copy of the device path specified by DevicePath\r
205 in an allocated buffer. The end-of-device-path device node is moved after the\r
206 end of the appended device node.\r
207 If DevicePathNode is NULL then a copy of DevicePath is returned.\r
208 If DevicePath is NULL then a copy of DevicePathNode, followed by an end-of-device\r
209 path device node is returned.\r
210 If both DevicePathNode and DevicePath are NULL then a copy of an end-of-device-path\r
211 device node is returned.\r
212 If there is not enough memory to allocate space for the new device path, then\r
213 NULL is returned.\r
214 The memory is allocated from EFI boot services memory. It is the responsibility\r
215 of the caller to free the memory allocated.\r
216\r
217 @param DevicePath A pointer to a device path data structure.\r
218 @param DevicePathNode A pointer to a single device path node.\r
219\r
220 @retval NULL If there is not enough memory for the new device path.\r
221 @retval Others A pointer to the new device path if success.\r
222 A copy of DevicePathNode followed by an end-of-device-path node\r
223 if both FirstDevicePath and SecondDevicePath are NULL.\r
224 A copy of an end-of-device-path node if both FirstDevicePath\r
225 and SecondDevicePath are NULL.\r
226\r
227**/\r
228EFI_DEVICE_PATH_PROTOCOL *\r
229UefiDevicePathLibAppendDevicePathNode (\r
230 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL\r
231 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL\r
232 );\r
233\r
234/**\r
235 Creates a new device path by appending the specified device path instance to the specified device\r
236 path.\r
237\r
238 This function creates a new device path by appending a copy of the device path\r
239 instance specified by DevicePathInstance to a copy of the device path specified\r
240 by DevicePath in a allocated buffer.\r
241 The end-of-device-path device node is moved after the end of the appended device\r
242 path instance and a new end-of-device-path-instance node is inserted between.\r
243 If DevicePath is NULL, then a copy if DevicePathInstance is returned.\r
244 If DevicePathInstance is NULL, then NULL is returned.\r
245 If DevicePath or DevicePathInstance is invalid, then NULL is returned.\r
246 If there is not enough memory to allocate space for the new device path, then\r
247 NULL is returned.\r
248 The memory is allocated from EFI boot services memory. It is the responsibility\r
249 of the caller to free the memory allocated.\r
250\r
251 @param DevicePath A pointer to a device path data structure.\r
252 @param DevicePathInstance A pointer to a device path instance.\r
253\r
254 @return A pointer to the new device path.\r
255\r
256**/\r
257EFI_DEVICE_PATH_PROTOCOL *\r
258UefiDevicePathLibAppendDevicePathInstance (\r
259 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL\r
260 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL\r
261 );\r
262\r
263/**\r
264 Creates a copy of the current device path instance and returns a pointer to the next device path\r
265 instance.\r
266\r
267 This function creates a copy of the current device path instance. It also updates\r
268 DevicePath to point to the next device path instance in the device path (or NULL\r
269 if no more) and updates Size to hold the size of the device path instance copy.\r
270 If DevicePath is NULL, then NULL is returned.\r
271 If DevicePath points to a invalid device path, then NULL is returned.\r
272 If there is not enough memory to allocate space for the new device path, then\r
273 NULL is returned.\r
274 The memory is allocated from EFI boot services memory. It is the responsibility\r
275 of the caller to free the memory allocated.\r
276 If Size is NULL, then ASSERT().\r
277\r
278 @param DevicePath On input, this holds the pointer to the current\r
279 device path instance. On output, this holds\r
280 the pointer to the next device path instance\r
281 or NULL if there are no more device path\r
282 instances in the device path pointer to a\r
283 device path data structure.\r
284 @param Size On output, this holds the size of the device\r
285 path instance, in bytes or zero, if DevicePath\r
286 is NULL.\r
287\r
288 @return A pointer to the current device path instance.\r
289\r
290**/\r
291EFI_DEVICE_PATH_PROTOCOL *\r
292UefiDevicePathLibGetNextDevicePathInstance (\r
293 EFI_DEVICE_PATH_PROTOCOL **DevicePath,\r
294 UINTN *Size\r
295 );\r
296\r
297/**\r
298 Creates a device node.\r
299\r
300 This function creates a new device node in a newly allocated buffer of size\r
301 NodeLength and initializes the device path node header with NodeType and NodeSubType.\r
302 The new device path node is returned.\r
303 If NodeLength is smaller than a device path header, then NULL is returned.\r
304 If there is not enough memory to allocate space for the new device path, then\r
305 NULL is returned.\r
306 The memory is allocated from EFI boot services memory. It is the responsibility\r
307 of the caller to free the memory allocated.\r
308\r
309 @param NodeType The device node type for the new device node.\r
310 @param NodeSubType The device node sub-type for the new device node.\r
311 @param NodeLength The length of the new device node.\r
312\r
313 @return The new device path.\r
314\r
315**/\r
316EFI_DEVICE_PATH_PROTOCOL *\r
317UefiDevicePathLibCreateDeviceNode (\r
318 UINT8 NodeType,\r
319 UINT8 NodeSubType,\r
320 UINT16 NodeLength\r
321 );\r
322\r
323/**\r
324 Determines if a device path is single or multi-instance.\r
325\r
326 This function returns TRUE if the device path specified by DevicePath is\r
327 multi-instance.\r
328 Otherwise, FALSE is returned.\r
329 If DevicePath is NULL or invalid, then FALSE is returned.\r
330\r
331 @param DevicePath A pointer to a device path data structure.\r
332\r
333 @retval TRUE DevicePath is multi-instance.\r
334 @retval FALSE DevicePath is not multi-instance, or DevicePath\r
335 is NULL or invalid.\r
336\r
337**/\r
338BOOLEAN\r
339UefiDevicePathLibIsDevicePathMultiInstance (\r
340 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath\r
341 );\r
342\r
343/**\r
344 Convert text to the binary representation of a device node.\r
345\r
346 @param TextDeviceNode TextDeviceNode points to the text representation of a device\r
347 node. Conversion starts with the first character and continues\r
348 until the first non-device node character.\r
349\r
350 @return A pointer to the EFI device node or NULL if TextDeviceNode is NULL or there was\r
351 insufficient memory or text unsupported.\r
352\r
353**/\r
354EFI_DEVICE_PATH_PROTOCOL *\r
355UefiDevicePathLibConvertTextToDeviceNode (\r
356 CONST CHAR16 *TextDeviceNode\r
357 );\r
358\r
359/**\r
360 Convert text to the binary representation of a device path.\r
361\r
362\r
363 @param TextDevicePath TextDevicePath points to the text representation of a device\r
364 path. Conversion starts with the first character and continues\r
365 until the first non-device node character.\r
366\r
367 @return A pointer to the allocated device path or NULL if TextDeviceNode is NULL or\r
368 there was insufficient memory.\r
369\r
370**/\r
371EFI_DEVICE_PATH_PROTOCOL *\r
372UefiDevicePathLibConvertTextToDevicePath (\r
373 CONST CHAR16 *TextDevicePath\r
374 );\r
375\r
376EFI_DEVICE_PATH_PROTOCOL *\r
377CreateDeviceNode (\r
378 UINT8 NodeType,\r
379 UINT8 NodeSubType,\r
380 UINT16 NodeLength\r
381 );\r
382\r
383 EFI_DEVICE_PATH_PROTOCOL *\r
384CreateDeviceNode (\r
385 UINT8 NodeType,\r
386 UINT8 NodeSubType,\r
387 UINT16 NodeLength\r
388 );\r
389\r
390BOOLEAN\r
391IsDevicePathMultiInstance (\r
392 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath\r
393 );\r
394\r
395EFI_DEVICE_PATH_PROTOCOL *\r
396GetNextDevicePathInstance (\r
397 EFI_DEVICE_PATH_PROTOCOL **DevicePath,\r
398 UINTN *Size\r
399 );\r
400\r
401EFI_DEVICE_PATH_PROTOCOL *\r
402AppendDevicePathInstance (\r
403 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL\r
404 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathInstance OPTIONAL\r
405 );\r
406\r
407EFI_DEVICE_PATH_PROTOCOL *\r
408AppendDevicePathNode (\r
409 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, OPTIONAL\r
410 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePathNode OPTIONAL\r
411 );\r
412EFI_DEVICE_PATH_PROTOCOL *\r
413AppendDevicePath (\r
414 CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath, OPTIONAL\r
415 CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath OPTIONAL\r
416 );\r
417\r
418EFI_DEVICE_PATH_PROTOCOL *\r
419DuplicateDevicePath (\r
420 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath\r
421 );\r
422\r
423UINTN\r
424GetDevicePathSize (\r
425 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath\r
426 );\r
427\r
428CHAR16 *\r
429ConvertDeviceNodeToText (\r
430 CONST EFI_DEVICE_PATH_PROTOCOL *DeviceNode,\r
431 BOOLEAN DisplayOnly,\r
432 BOOLEAN AllowShortcuts\r
433 );\r
434\r
435CHAR16 *\r
436ConvertDevicePathToText (\r
437 CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath,\r
438 BOOLEAN DisplayOnly,\r
439 BOOLEAN AllowShortcuts\r
440 );\r
441\r
442EFI_DEVICE_PATH_PROTOCOL *\r
443ConvertTextToDeviceNode (\r
444 CONST CHAR16 *TextDeviceNode\r
445 );\r
446\r
447EFI_DEVICE_PATH_PROTOCOL *\r
448ConvertTextToDevicePath (\r
449 CONST CHAR16 *TextDevicePath\r
450 );\r
451\r
452#endif\r