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Commit | Line | Data |
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028db58d | 1 | /** @file\r |
5d73d92f | 2 | Main file for SetVar shell Debug1 function.\r |
3 | \r | |
c011b6c9 | 4 | (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r |
ba0014b9 | 5 | Copyright (c) 2010 - 2018, Intel Corporation. All rights reserved.<BR>\r |
56ba3746 | 6 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
5d73d92f | 7 | \r |
8 | **/\r | |
9 | \r | |
10 | #include "UefiShellDebug1CommandsLib.h"\r | |
11 | \r | |
47d20b54 MK |
12 | STATIC CONST SHELL_PARAM_ITEM ParamList[] = {\r |
13 | { L"-guid", TypeValue },\r | |
14 | { L"-bs", TypeFlag },\r | |
15 | { L"-rt", TypeFlag },\r | |
16 | { L"-nv", TypeFlag },\r | |
17 | { NULL, TypeMax }\r | |
18 | };\r | |
5d73d92f | 19 | \r |
47454e23 | 20 | typedef enum {\r |
47d20b54 MK |
21 | DataTypeHexNumber = 0,\r |
22 | DataTypeHexArray = 1,\r | |
23 | DataTypeAscii = 2,\r | |
24 | DataTypeUnicode = 3,\r | |
25 | DataTypeDevicePath = 4,\r | |
26 | DataTypeUnKnow = 5\r | |
47454e23 CC |
27 | } DATA_TYPE;\r |
28 | \r | |
29 | typedef union {\r | |
30 | UINT8 HexNumber8;\r | |
31 | UINT16 HexNumber16;\r | |
32 | UINT32 HexNumber32;\r | |
33 | UINT64 HexNumber64;\r | |
34 | } HEX_NUMBER;\r | |
bbf57d4f LE |
35 | \r |
36 | /**\r | |
37 | Check if the input is a (potentially empty) string of hexadecimal nibbles.\r | |
38 | \r | |
39 | @param[in] String The CHAR16 string to check.\r | |
40 | \r | |
41 | @retval FALSE A character has been found in String for which\r | |
42 | ShellIsHexaDecimalDigitCharacter() returned FALSE.\r | |
43 | \r | |
44 | @retval TRUE Otherwise. (Note that this covers the case when String is\r | |
45 | empty.)\r | |
46 | **/\r | |
47 | BOOLEAN\r | |
bbf57d4f LE |
48 | IsStringOfHexNibbles (\r |
49 | IN CONST CHAR16 *String\r | |
50 | )\r | |
51 | {\r | |
47d20b54 | 52 | CONST CHAR16 *Pos;\r |
bbf57d4f LE |
53 | \r |
54 | for (Pos = String; *Pos != L'\0'; ++Pos) {\r | |
55 | if (!ShellIsHexaDecimalDigitCharacter (*Pos)) {\r | |
56 | return FALSE;\r | |
57 | }\r | |
58 | }\r | |
47d20b54 | 59 | \r |
bbf57d4f LE |
60 | return TRUE;\r |
61 | }\r | |
62 | \r | |
47454e23 CC |
63 | /**\r |
64 | Function to check the TYPE of Data.\r | |
65 | \r | |
66 | @param[in] Data The Data to be check.\r | |
67 | \r | |
68 | @retval DATA_TYPE The TYPE of Data.\r | |
69 | **/\r | |
70 | DATA_TYPE\r | |
71 | TestDataType (\r | |
72 | IN CONST CHAR16 *Data\r | |
73 | )\r | |
74 | {\r | |
47d20b54 MK |
75 | if ((Data[0] == L'0') && ((Data[1] == L'x') || (Data[1] == L'X'))) {\r |
76 | if (IsStringOfHexNibbles (Data+2) && (StrLen (Data + 2) <= 16)) {\r | |
47454e23 CC |
77 | return DataTypeHexNumber;\r |
78 | } else {\r | |
79 | return DataTypeUnKnow;\r | |
80 | }\r | |
81 | } else if (Data[0] == L'H') {\r | |
47d20b54 | 82 | if (IsStringOfHexNibbles (Data + 1) && (StrLen (Data + 1) % 2 == 0)) {\r |
47454e23 CC |
83 | return DataTypeHexArray;\r |
84 | } else {\r | |
85 | return DataTypeUnKnow;\r | |
86 | }\r | |
87 | } else if (Data[0] == L'S') {\r | |
88 | return DataTypeAscii;\r | |
89 | } else if (Data[0] == L'L') {\r | |
90 | return DataTypeUnicode;\r | |
47d20b54 | 91 | } else if ((Data[0] == L'P') || (StrnCmp (Data, L"--", 2) == 0)) {\r |
47454e23 CC |
92 | return DataTypeDevicePath;\r |
93 | }\r | |
94 | \r | |
47d20b54 | 95 | if (IsStringOfHexNibbles (Data) && (StrLen (Data) % 2 == 0)) {\r |
47454e23 CC |
96 | return DataTypeHexArray;\r |
97 | }\r | |
98 | \r | |
99 | return DataTypeAscii;\r | |
100 | }\r | |
101 | \r | |
102 | /**\r | |
103 | Function to parse the Data by the type of Data, and save in the Buffer.\r | |
104 | \r | |
105 | @param[in] Data A pointer to a buffer to be parsed.\r | |
106 | @param[out] Buffer A pointer to a buffer to hold the return data.\r | |
107 | @param[in,out] BufferSize On input, indicates the size of Buffer in bytes.\r | |
108 | On output,indicates the size of data return in Buffer.\r | |
109 | Or the size in bytes of the buffer needed to obtain.\r | |
110 | \r | |
111 | @retval EFI_INVALID_PARAMETER The Buffer or BufferSize is NULL.\r | |
112 | @retval EFI_BUFFER_TOO_SMALL The Buffer is too small to hold the data.\r | |
113 | @retval EFI_OUT_OF_RESOURCES A memory allcation failed.\r | |
114 | @retval EFI_SUCCESS The Data parsed successful and save in the Buffer.\r | |
115 | **/\r | |
116 | EFI_STATUS\r | |
117 | ParseParameterData (\r | |
47d20b54 MK |
118 | IN CONST CHAR16 *Data,\r |
119 | OUT VOID *Buffer,\r | |
120 | IN OUT UINTN *BufferSize\r | |
47454e23 CC |
121 | )\r |
122 | {\r | |
123 | UINT64 HexNumber;\r | |
124 | UINTN HexNumberLen;\r | |
125 | UINTN Size;\r | |
126 | CHAR8 *AsciiBuffer;\r | |
127 | DATA_TYPE DataType;\r | |
128 | EFI_DEVICE_PATH_PROTOCOL *DevPath;\r | |
129 | EFI_STATUS Status;\r | |
130 | \r | |
47d20b54 MK |
131 | HexNumber = 0;\r |
132 | HexNumberLen = 0;\r | |
133 | Size = 0;\r | |
134 | AsciiBuffer = NULL;\r | |
135 | DevPath = NULL;\r | |
136 | Status = EFI_SUCCESS;\r | |
47454e23 | 137 | \r |
47d20b54 | 138 | if ((Data == NULL) || (BufferSize == NULL)) {\r |
47454e23 CC |
139 | return EFI_INVALID_PARAMETER;\r |
140 | }\r | |
141 | \r | |
142 | DataType = TestDataType (Data);\r | |
143 | if (DataType == DataTypeHexNumber) {\r | |
144 | //\r | |
145 | // hex number\r | |
146 | //\r | |
147 | StrHexToUint64S (Data + 2, NULL, &HexNumber);\r | |
148 | HexNumberLen = StrLen (Data + 2);\r | |
47d20b54 | 149 | if ((HexNumberLen >= 1) && (HexNumberLen <= 2)) {\r |
47454e23 | 150 | Size = 1;\r |
47d20b54 | 151 | } else if ((HexNumberLen >= 3) && (HexNumberLen <= 4)) {\r |
47454e23 | 152 | Size = 2;\r |
47d20b54 | 153 | } else if ((HexNumberLen >= 5) && (HexNumberLen <= 8)) {\r |
47454e23 | 154 | Size = 4;\r |
47d20b54 | 155 | } else if ((HexNumberLen >= 9) && (HexNumberLen <= 16)) {\r |
47454e23 CC |
156 | Size = 8;\r |
157 | }\r | |
47d20b54 MK |
158 | \r |
159 | if ((Buffer != NULL) && (*BufferSize >= Size)) {\r | |
160 | CopyMem (Buffer, (VOID *)&HexNumber, Size);\r | |
47454e23 CC |
161 | } else {\r |
162 | Status = EFI_BUFFER_TOO_SMALL;\r | |
163 | }\r | |
47d20b54 | 164 | \r |
47454e23 CC |
165 | *BufferSize = Size;\r |
166 | } else if (DataType == DataTypeHexArray) {\r | |
167 | //\r | |
168 | // hex array\r | |
169 | //\r | |
170 | if (*Data == L'H') {\r | |
171 | Data = Data + 1;\r | |
172 | }\r | |
173 | \r | |
174 | Size = StrLen (Data) / 2;\r | |
47d20b54 MK |
175 | if ((Buffer != NULL) && (*BufferSize >= Size)) {\r |
176 | StrHexToBytes (Data, StrLen (Data), (UINT8 *)Buffer, Size);\r | |
47454e23 CC |
177 | } else {\r |
178 | Status = EFI_BUFFER_TOO_SMALL;\r | |
179 | }\r | |
47d20b54 | 180 | \r |
47454e23 CC |
181 | *BufferSize = Size;\r |
182 | } else if (DataType == DataTypeAscii) {\r | |
183 | //\r | |
184 | // ascii text\r | |
185 | //\r | |
186 | if (*Data == L'S') {\r | |
187 | Data = Data + 1;\r | |
188 | }\r | |
47d20b54 | 189 | \r |
47454e23 CC |
190 | AsciiBuffer = AllocateZeroPool (StrSize (Data) / 2);\r |
191 | if (AsciiBuffer == NULL) {\r | |
192 | Status = EFI_OUT_OF_RESOURCES;\r | |
193 | } else {\r | |
194 | AsciiSPrint (AsciiBuffer, StrSize (Data) / 2, "%s", (CHAR8 *)Data);\r | |
195 | \r | |
196 | Size = StrSize (Data) / 2 - 1;\r | |
47d20b54 | 197 | if ((Buffer != NULL) && (*BufferSize >= Size)) {\r |
47454e23 CC |
198 | CopyMem (Buffer, AsciiBuffer, Size);\r |
199 | } else {\r | |
200 | Status = EFI_BUFFER_TOO_SMALL;\r | |
201 | }\r | |
47d20b54 | 202 | \r |
47454e23 CC |
203 | *BufferSize = Size;\r |
204 | }\r | |
47d20b54 | 205 | \r |
47454e23 CC |
206 | SHELL_FREE_NON_NULL (AsciiBuffer);\r |
207 | } else if (DataType == DataTypeUnicode) {\r | |
208 | //\r | |
209 | // unicode text\r | |
210 | //\r | |
211 | if (*Data == L'L') {\r | |
212 | Data = Data + 1;\r | |
213 | }\r | |
47d20b54 | 214 | \r |
47454e23 | 215 | Size = StrSize (Data) - sizeof (CHAR16);\r |
47d20b54 | 216 | if ((Buffer != NULL) && (*BufferSize >= Size)) {\r |
47454e23 CC |
217 | CopyMem (Buffer, Data, Size);\r |
218 | } else {\r | |
219 | Status = EFI_BUFFER_TOO_SMALL;\r | |
220 | }\r | |
47d20b54 | 221 | \r |
47454e23 CC |
222 | *BufferSize = Size;\r |
223 | } else if (DataType == DataTypeDevicePath) {\r | |
224 | if (*Data == L'P') {\r | |
225 | Data = Data + 1;\r | |
226 | } else if (StrnCmp (Data, L"--", 2) == 0) {\r | |
227 | Data = Data + 2;\r | |
228 | }\r | |
47d20b54 | 229 | \r |
47454e23 CC |
230 | DevPath = ConvertTextToDevicePath (Data);\r |
231 | if (DevPath == NULL) {\r | |
232 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_DPFT), gShellDebug1HiiHandle, L"setvar");\r | |
233 | Status = EFI_INVALID_PARAMETER;\r | |
234 | } else {\r | |
235 | Size = GetDevicePathSize (DevPath);\r | |
47d20b54 | 236 | if ((Buffer != NULL) && (*BufferSize >= Size)) {\r |
47454e23 CC |
237 | CopyMem (Buffer, DevPath, Size);\r |
238 | } else {\r | |
239 | Status = EFI_BUFFER_TOO_SMALL;\r | |
240 | }\r | |
47d20b54 | 241 | \r |
47454e23 CC |
242 | *BufferSize = Size;\r |
243 | }\r | |
47d20b54 | 244 | \r |
47454e23 CC |
245 | SHELL_FREE_NON_NULL (DevPath);\r |
246 | } else {\r | |
247 | Status = EFI_INVALID_PARAMETER;\r | |
248 | }\r | |
249 | \r | |
250 | return Status;\r | |
251 | }\r | |
252 | \r | |
253 | /**\r | |
254 | Function to get each data from parameters.\r | |
255 | \r | |
6877b9bd | 256 | @param[in] Package The package of checked values.\r |
47454e23 CC |
257 | @param[out] Buffer A pointer to a buffer to hold the return data.\r |
258 | @param[out] BufferSize Indicates the size of data in bytes return in Buffer.\r | |
259 | \r | |
260 | @retval EFI_INVALID_PARAMETER Buffer or BufferSize is NULL.\r | |
261 | @retval EFI_OUT_OF_RESOURCES A memory allcation failed.\r | |
262 | @retval EFI_SUCCESS Get each parameter data was successful.\r | |
263 | **/\r | |
264 | EFI_STATUS\r | |
265 | GetVariableDataFromParameter (\r | |
47d20b54 MK |
266 | IN CONST LIST_ENTRY *Package,\r |
267 | OUT UINT8 **Buffer,\r | |
268 | OUT UINTN *BufferSize\r | |
47454e23 CC |
269 | )\r |
270 | {\r | |
47d20b54 MK |
271 | CONST CHAR16 *TempData;\r |
272 | UINTN Index;\r | |
273 | UINTN TotalSize;\r | |
274 | UINTN Size;\r | |
275 | UINT8 *BufferWalker;\r | |
276 | EFI_STATUS Status;\r | |
277 | \r | |
278 | TotalSize = 0;\r | |
279 | Size = 0;\r | |
280 | Status = EFI_SUCCESS;\r | |
281 | \r | |
282 | if ((BufferSize == NULL) || (Buffer == NULL) || (ShellCommandLineGetCount (Package) < 3)) {\r | |
47454e23 CC |
283 | return EFI_INVALID_PARAMETER;\r |
284 | }\r | |
285 | \r | |
286 | for (Index = 2; Index < ShellCommandLineGetCount (Package); Index++) {\r | |
287 | TempData = ShellCommandLineGetRawValue (Package, Index);\r | |
028db58d | 288 | ASSERT (TempData != NULL);\r |
47454e23 CC |
289 | \r |
290 | if (TempData[0] != L'=') {\r | |
291 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", TempData);\r | |
292 | return EFI_INVALID_PARAMETER;\r | |
293 | }\r | |
294 | \r | |
295 | TempData = TempData + 1;\r | |
47d20b54 MK |
296 | Size = 0;\r |
297 | Status = ParseParameterData (TempData, NULL, &Size);\r | |
47454e23 CC |
298 | if (EFI_ERROR (Status)) {\r |
299 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
300 | //\r | |
301 | // We expect return EFI_BUFFER_TOO_SMALL when pass 'NULL' as second parameter to the function ParseParameterData.\r | |
302 | //\r | |
303 | TotalSize += Size;\r | |
304 | } else {\r | |
305 | if (Status == EFI_INVALID_PARAMETER) {\r | |
306 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", TempData);\r | |
307 | } else if (Status == EFI_NOT_FOUND) {\r | |
308 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_DPFT), gShellDebug1HiiHandle, L"setvar");\r | |
309 | }\r | |
47d20b54 | 310 | \r |
47454e23 CC |
311 | return Status;\r |
312 | }\r | |
313 | }\r | |
314 | }\r | |
315 | \r | |
316 | *BufferSize = TotalSize;\r | |
47d20b54 | 317 | *Buffer = AllocateZeroPool (TotalSize);\r |
47454e23 CC |
318 | \r |
319 | if (*Buffer == NULL) {\r | |
320 | Status = EFI_OUT_OF_RESOURCES;\r | |
321 | } else {\r | |
322 | BufferWalker = *Buffer;\r | |
323 | for (Index = 2; Index < ShellCommandLineGetCount (Package); Index++) {\r | |
324 | TempData = ShellCommandLineGetRawValue (Package, Index);\r | |
325 | TempData = TempData + 1;\r | |
326 | \r | |
47d20b54 | 327 | Size = TotalSize;\r |
47454e23 CC |
328 | Status = ParseParameterData (TempData, (VOID *)BufferWalker, &Size);\r |
329 | if (!EFI_ERROR (Status)) {\r | |
330 | BufferWalker = BufferWalker + Size;\r | |
47d20b54 | 331 | TotalSize = TotalSize - Size;\r |
47454e23 CC |
332 | } else {\r |
333 | return Status;\r | |
334 | }\r | |
335 | }\r | |
336 | }\r | |
337 | \r | |
338 | return EFI_SUCCESS;\r | |
339 | }\r | |
bbf57d4f | 340 | \r |
3737ac2b | 341 | /**\r |
342 | Function for 'setvar' command.\r | |
343 | \r | |
344 | @param[in] ImageHandle Handle to the Image (NULL if Internal).\r | |
345 | @param[in] SystemTable Pointer to the System Table (NULL if Internal).\r | |
346 | **/\r | |
5d73d92f | 347 | SHELL_STATUS\r |
348 | EFIAPI\r | |
349 | ShellCommandRunSetVar (\r | |
350 | IN EFI_HANDLE ImageHandle,\r | |
351 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
352 | )\r | |
353 | {\r | |
47d20b54 MK |
354 | EFI_STATUS Status;\r |
355 | RETURN_STATUS RStatus;\r | |
356 | LIST_ENTRY *Package;\r | |
357 | CHAR16 *ProblemParam;\r | |
358 | SHELL_STATUS ShellStatus;\r | |
359 | CONST CHAR16 *VariableName;\r | |
360 | EFI_GUID Guid;\r | |
361 | CONST CHAR16 *StringGuid;\r | |
362 | UINT32 Attributes;\r | |
363 | VOID *Buffer;\r | |
364 | UINTN Size;\r | |
365 | UINTN LoopVar;\r | |
366 | \r | |
367 | ShellStatus = SHELL_SUCCESS;\r | |
368 | Status = EFI_SUCCESS;\r | |
369 | Buffer = NULL;\r | |
370 | Size = 0;\r | |
371 | Attributes = 0;\r | |
5d73d92f | 372 | \r |
373 | //\r | |
374 | // initialize the shell lib (we must be in non-auto-init...)\r | |
375 | //\r | |
47d20b54 MK |
376 | Status = ShellInitialize ();\r |
377 | ASSERT_EFI_ERROR (Status);\r | |
5d73d92f | 378 | \r |
47d20b54 MK |
379 | Status = CommandInit ();\r |
380 | ASSERT_EFI_ERROR (Status);\r | |
5d73d92f | 381 | \r |
382 | //\r | |
383 | // parse the command line\r | |
384 | //\r | |
385 | Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);\r | |
47d20b54 MK |
386 | if (EFI_ERROR (Status)) {\r |
387 | if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {\r | |
388 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"setvar", ProblemParam);\r | |
389 | FreePool (ProblemParam);\r | |
5d73d92f | 390 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
391 | } else {\r | |
47d20b54 | 392 | ASSERT (FALSE);\r |
5d73d92f | 393 | }\r |
47d20b54 MK |
394 | } else if (ShellCommandLineCheckDuplicate (Package, &ProblemParam) != EFI_SUCCESS) {\r |
395 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_DUPLICATE), gShellDebug1HiiHandle, L"setvar", ProblemParam);\r | |
396 | FreePool (ProblemParam);\r | |
397 | ShellStatus = SHELL_INVALID_PARAMETER;\r | |
5d73d92f | 398 | } else {\r |
47d20b54 MK |
399 | if (ShellCommandLineGetCount (Package) < 2) {\r |
400 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"setvar");\r | |
5d73d92f | 401 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
5d73d92f | 402 | } else {\r |
47d20b54 MK |
403 | VariableName = ShellCommandLineGetRawValue (Package, 1);\r |
404 | if (!ShellCommandLineGetFlag (Package, L"-guid")) {\r | |
405 | CopyGuid (&Guid, &gEfiGlobalVariableGuid);\r | |
5d73d92f | 406 | } else {\r |
47d20b54 MK |
407 | StringGuid = ShellCommandLineGetValue (Package, L"-guid");\r |
408 | RStatus = StrToGuid (StringGuid, &Guid);\r | |
7f6511ee | 409 | if (RETURN_ERROR (RStatus) || (StringGuid[GUID_STRING_LENGTH] != L'\0')) {\r |
47d20b54 | 410 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", StringGuid);\r |
3737ac2b | 411 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
5d73d92f | 412 | }\r |
413 | }\r | |
47454e23 | 414 | \r |
47d20b54 | 415 | if (ShellCommandLineGetCount (Package) == 2) {\r |
5d73d92f | 416 | //\r |
47454e23 | 417 | // Display\r |
5d73d92f | 418 | //\r |
47d20b54 | 419 | Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer);\r |
5d73d92f | 420 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
47d20b54 MK |
421 | Buffer = AllocateZeroPool (Size);\r |
422 | Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer);\r | |
5d73d92f | 423 | }\r |
47d20b54 MK |
424 | \r |
425 | if (!EFI_ERROR (Status) && (Buffer != NULL)) {\r | |
426 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_PRINT), gShellDebug1HiiHandle, &Guid, VariableName, Size);\r | |
47454e23 | 427 | for (LoopVar = 0; LoopVar < Size; LoopVar++) {\r |
47d20b54 | 428 | ShellPrintEx (-1, -1, L"%02x ", ((UINT8 *)Buffer)[LoopVar]);\r |
5d73d92f | 429 | }\r |
47d20b54 MK |
430 | \r |
431 | ShellPrintEx (-1, -1, L"\r\n");\r | |
5d73d92f | 432 | } else {\r |
47d20b54 | 433 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_GET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName);\r |
5d73d92f | 434 | ShellStatus = SHELL_ACCESS_DENIED;\r |
5d73d92f | 435 | }\r |
436 | } else {\r | |
5d73d92f | 437 | //\r |
47454e23 | 438 | // Create, Delete or Modify.\r |
475387e9 | 439 | //\r |
47d20b54 | 440 | Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer);\r |
475387e9 | 441 | if (Status == EFI_BUFFER_TOO_SMALL) {\r |
47d20b54 MK |
442 | Buffer = AllocateZeroPool (Size);\r |
443 | Status = gRT->GetVariable ((CHAR16 *)VariableName, &Guid, &Attributes, &Size, Buffer);\r | |
5d73d92f | 444 | }\r |
47d20b54 MK |
445 | \r |
446 | if (EFI_ERROR (Status) || (Buffer == NULL)) {\r | |
475387e9 JC |
447 | //\r |
448 | // Creating a new variable. determine attributes from command line.\r | |
449 | //\r | |
450 | Attributes = 0;\r | |
47d20b54 | 451 | if (ShellCommandLineGetFlag (Package, L"-bs")) {\r |
475387e9 JC |
452 | Attributes |= EFI_VARIABLE_BOOTSERVICE_ACCESS;\r |
453 | }\r | |
47d20b54 MK |
454 | \r |
455 | if (ShellCommandLineGetFlag (Package, L"-rt")) {\r | |
475387e9 JC |
456 | Attributes |= EFI_VARIABLE_RUNTIME_ACCESS |\r |
457 | EFI_VARIABLE_BOOTSERVICE_ACCESS;\r | |
458 | }\r | |
47d20b54 MK |
459 | \r |
460 | if (ShellCommandLineGetFlag (Package, L"-nv")) {\r | |
475387e9 JC |
461 | Attributes |= EFI_VARIABLE_NON_VOLATILE;\r |
462 | }\r | |
5d73d92f | 463 | }\r |
475387e9 | 464 | \r |
47d20b54 MK |
465 | SHELL_FREE_NON_NULL (Buffer);\r |
466 | \r | |
467 | Size = 0;\r | |
468 | Status = GetVariableDataFromParameter (Package, (UINT8 **)&Buffer, &Size);\r | |
469 | if (!EFI_ERROR (Status)) {\r | |
470 | Status = gRT->SetVariable ((CHAR16 *)VariableName, &Guid, Attributes, Size, Buffer);\r | |
47454e23 | 471 | }\r |
47d20b54 MK |
472 | \r |
473 | if (EFI_ERROR (Status)) {\r | |
474 | ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName);\r | |
47454e23 | 475 | ShellStatus = SHELL_ACCESS_DENIED;\r |
5d73d92f | 476 | } else {\r |
47d20b54 | 477 | ASSERT (ShellStatus == SHELL_SUCCESS);\r |
5d73d92f | 478 | }\r |
479 | }\r | |
480 | }\r | |
47d20b54 | 481 | \r |
5d73d92f | 482 | ShellCommandLineFreeVarList (Package);\r |
483 | }\r | |
484 | \r | |
485 | if (Buffer != NULL) {\r | |
47d20b54 | 486 | FreePool (Buffer);\r |
5d73d92f | 487 | }\r |
488 | \r | |
5d73d92f | 489 | return (ShellStatus);\r |
490 | }\r |