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5d73d92f | 1 | /** @file\r |
2 | Main file for SetVar shell Debug1 function.\r | |
3 | \r | |
c011b6c9 | 4 | (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>\r |
7f6511ee | 5 | Copyright (c) 2010 - 2017, Intel Corporation. All rights reserved.<BR>\r |
5d73d92f | 6 | This program and the accompanying materials\r |
7 | are licensed and made available under the terms and conditions of the BSD License\r | |
8 | which accompanies this distribution. The full text of the license may be found at\r | |
9 | http://opensource.org/licenses/bsd-license.php\r | |
10 | \r | |
11 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
12 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
13 | \r | |
14 | **/\r | |
15 | \r | |
16 | #include "UefiShellDebug1CommandsLib.h"\r | |
17 | \r | |
18 | STATIC CONST SHELL_PARAM_ITEM ParamList[] = {\r | |
19 | {L"-guid", TypeValue},\r | |
20 | {L"-bs", TypeFlag},\r | |
21 | {L"-rt", TypeFlag},\r | |
22 | {L"-nv", TypeFlag},\r | |
23 | {NULL, TypeMax}\r | |
24 | };\r | |
25 | \r | |
bbf57d4f LE |
26 | \r |
27 | /**\r | |
28 | Check if the input is a (potentially empty) string of hexadecimal nibbles.\r | |
29 | \r | |
30 | @param[in] String The CHAR16 string to check.\r | |
31 | \r | |
32 | @retval FALSE A character has been found in String for which\r | |
33 | ShellIsHexaDecimalDigitCharacter() returned FALSE.\r | |
34 | \r | |
35 | @retval TRUE Otherwise. (Note that this covers the case when String is\r | |
36 | empty.)\r | |
37 | **/\r | |
38 | BOOLEAN\r | |
bbf57d4f LE |
39 | IsStringOfHexNibbles (\r |
40 | IN CONST CHAR16 *String\r | |
41 | )\r | |
42 | {\r | |
43 | CONST CHAR16 *Pos;\r | |
44 | \r | |
45 | for (Pos = String; *Pos != L'\0'; ++Pos) {\r | |
46 | if (!ShellIsHexaDecimalDigitCharacter (*Pos)) {\r | |
47 | return FALSE;\r | |
48 | }\r | |
49 | }\r | |
50 | return TRUE;\r | |
51 | }\r | |
52 | \r | |
53 | \r | |
3737ac2b | 54 | /**\r |
55 | Function for 'setvar' command.\r | |
56 | \r | |
57 | @param[in] ImageHandle Handle to the Image (NULL if Internal).\r | |
58 | @param[in] SystemTable Pointer to the System Table (NULL if Internal).\r | |
59 | **/\r | |
5d73d92f | 60 | SHELL_STATUS\r |
61 | EFIAPI\r | |
62 | ShellCommandRunSetVar (\r | |
63 | IN EFI_HANDLE ImageHandle,\r | |
64 | IN EFI_SYSTEM_TABLE *SystemTable\r | |
65 | )\r | |
66 | {\r | |
67 | EFI_STATUS Status;\r | |
7f6511ee | 68 | RETURN_STATUS RStatus;\r |
5d73d92f | 69 | LIST_ENTRY *Package;\r |
70 | CHAR16 *ProblemParam;\r | |
71 | SHELL_STATUS ShellStatus;\r | |
72 | CONST CHAR16 *VariableName;\r | |
73 | CONST CHAR16 *Data;\r | |
74 | EFI_GUID Guid;\r | |
75 | CONST CHAR16 *StringGuid;\r | |
76 | UINT32 Attributes;\r | |
77 | VOID *Buffer;\r | |
78 | UINTN Size;\r | |
79 | UINTN LoopVar;\r | |
80 | EFI_DEVICE_PATH_PROTOCOL *DevPath;\r | |
5d73d92f | 81 | \r |
82 | ShellStatus = SHELL_SUCCESS;\r | |
83 | Status = EFI_SUCCESS;\r | |
84 | Buffer = NULL;\r | |
85 | Size = 0;\r | |
86 | Attributes = 0;\r | |
87 | DevPath = NULL;\r | |
88 | \r | |
89 | //\r | |
90 | // initialize the shell lib (we must be in non-auto-init...)\r | |
91 | //\r | |
92 | Status = ShellInitialize();\r | |
93 | ASSERT_EFI_ERROR(Status);\r | |
94 | \r | |
95 | Status = CommandInit();\r | |
96 | ASSERT_EFI_ERROR(Status);\r | |
97 | \r | |
98 | //\r | |
99 | // parse the command line\r | |
100 | //\r | |
101 | Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);\r | |
102 | if (EFI_ERROR(Status)) {\r | |
103 | if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {\r | |
4092a8f6 | 104 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"setvar", ProblemParam); \r |
5d73d92f | 105 | FreePool(ProblemParam);\r |
106 | ShellStatus = SHELL_INVALID_PARAMETER;\r | |
107 | } else {\r | |
108 | ASSERT(FALSE);\r | |
109 | }\r | |
110 | } else {\r | |
111 | if (ShellCommandLineGetCount(Package) < 2) {\r | |
4092a8f6 | 112 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"setvar"); \r |
5d73d92f | 113 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
114 | } else if (ShellCommandLineGetCount(Package) > 3) {\r | |
4092a8f6 | 115 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle, L"setvar"); \r |
5d73d92f | 116 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
117 | } else {\r | |
118 | VariableName = ShellCommandLineGetRawValue(Package, 1);\r | |
119 | Data = ShellCommandLineGetRawValue(Package, 2);\r | |
120 | if (!ShellCommandLineGetFlag(Package, L"-guid")){\r | |
121 | CopyGuid(&Guid, &gEfiGlobalVariableGuid);\r | |
122 | } else {\r | |
123 | StringGuid = ShellCommandLineGetValue(Package, L"-guid");\r | |
7f6511ee RN |
124 | RStatus = StrToGuid (StringGuid, &Guid);\r |
125 | if (RETURN_ERROR (RStatus) || (StringGuid[GUID_STRING_LENGTH] != L'\0')) {\r | |
4092a8f6 | 126 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", StringGuid); \r |
3737ac2b | 127 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
5d73d92f | 128 | }\r |
129 | }\r | |
475387e9 | 130 | if (Data == NULL || Data[0] != L'=') {\r |
5d73d92f | 131 | //\r |
132 | // Display what's there\r | |
133 | //\r | |
134 | Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);\r | |
135 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
3737ac2b | 136 | Buffer = AllocateZeroPool(Size);\r |
5d73d92f | 137 | Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);\r |
138 | }\r | |
139 | if (!EFI_ERROR(Status)&& Buffer != NULL) {\r | |
140 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_PRINT), gShellDebug1HiiHandle, &Guid, VariableName, Size);\r | |
141 | for (LoopVar = 0 ; LoopVar < Size ; LoopVar++) {\r | |
142 | ShellPrintEx(-1, -1, L"%02x ", ((UINT8*)Buffer)[LoopVar]);\r | |
143 | }\r | |
144 | ShellPrintEx(-1, -1, L"\r\n");\r | |
145 | } else {\r | |
4092a8f6 | 146 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_GET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName); \r |
5d73d92f | 147 | ShellStatus = SHELL_ACCESS_DENIED;\r |
148 | }\r | |
149 | } else if (StrCmp(Data, L"=") == 0) {\r | |
150 | //\r | |
151 | // Delete what's there!\r | |
152 | //\r | |
153 | Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, 0, NULL);\r | |
154 | if (EFI_ERROR(Status)) {\r | |
4092a8f6 | 155 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName); \r |
5d73d92f | 156 | ShellStatus = SHELL_ACCESS_DENIED;\r |
157 | } else {\r | |
158 | ASSERT(ShellStatus == SHELL_SUCCESS);\r | |
159 | }\r | |
160 | } else {\r | |
5d73d92f | 161 | //\r |
475387e9 | 162 | // Change what's there or create a new one.\r |
5d73d92f | 163 | //\r |
475387e9 JC |
164 | \r |
165 | ASSERT(Data[0] == L'=');\r | |
166 | Data++;\r | |
bbf57d4f | 167 | ASSERT(Data[0] != L'\0');\r |
475387e9 JC |
168 | \r |
169 | //\r | |
170 | // Determine if the variable exists and get the attributes\r | |
171 | //\r | |
172 | Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);\r | |
173 | if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
174 | Buffer = AllocateZeroPool(Size);\r | |
175 | Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);\r | |
5d73d92f | 176 | }\r |
475387e9 JC |
177 | \r |
178 | if (EFI_ERROR(Status) || Buffer == NULL) {\r | |
179 | //\r | |
180 | // Creating a new variable. determine attributes from command line.\r | |
181 | //\r | |
182 | Attributes = 0;\r | |
183 | if (ShellCommandLineGetFlag(Package, L"-bs")) {\r | |
184 | Attributes |= EFI_VARIABLE_BOOTSERVICE_ACCESS;\r | |
185 | }\r | |
186 | if (ShellCommandLineGetFlag(Package, L"-rt")) {\r | |
187 | Attributes |= EFI_VARIABLE_RUNTIME_ACCESS |\r | |
188 | EFI_VARIABLE_BOOTSERVICE_ACCESS;\r | |
189 | }\r | |
190 | if (ShellCommandLineGetFlag(Package, L"-nv")) {\r | |
191 | Attributes |= EFI_VARIABLE_NON_VOLATILE;\r | |
192 | }\r | |
5d73d92f | 193 | }\r |
475387e9 JC |
194 | SHELL_FREE_NON_NULL(Buffer);\r |
195 | \r | |
196 | //\r | |
197 | // What type is the new data.\r | |
198 | //\r | |
bbf57d4f | 199 | if (IsStringOfHexNibbles(Data)) {\r |
3737ac2b | 200 | if (StrLen(Data) % 2 != 0) {\r |
4092a8f6 | 201 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", Data); \r |
3737ac2b | 202 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
5d73d92f | 203 | } else {\r |
3737ac2b | 204 | //\r |
205 | // arbitrary buffer\r | |
206 | //\r | |
207 | Buffer = AllocateZeroPool((StrLen(Data) / 2));\r | |
33c031ee | 208 | if (Buffer == NULL) {\r |
209 | Status = EFI_OUT_OF_RESOURCES;\r | |
210 | } else {\r | |
7f6511ee | 211 | StrHexToBytes (Data, StrLen (Data), Buffer, StrLen (Data) / 2);\r |
33c031ee | 212 | Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, StrLen(Data) / 2, Buffer);\r |
3737ac2b | 213 | }\r |
3737ac2b | 214 | if (EFI_ERROR(Status)) {\r |
4092a8f6 | 215 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName); \r |
3737ac2b | 216 | ShellStatus = SHELL_ACCESS_DENIED;\r |
217 | } else {\r | |
218 | ASSERT(ShellStatus == SHELL_SUCCESS);\r | |
219 | }\r | |
5d73d92f | 220 | }\r |
221 | } else if (StrnCmp(Data, L"\"", 1) == 0) {\r | |
222 | //\r | |
223 | // ascii text\r | |
224 | //\r | |
225 | Data++;\r | |
226 | Buffer = AllocateZeroPool(StrSize(Data) / 2);\r | |
33c031ee | 227 | if (Buffer == NULL) {\r |
228 | Status = EFI_OUT_OF_RESOURCES;\r | |
229 | } else {\r | |
230 | AsciiSPrint(Buffer, StrSize(Data) / 2, "%s", Data);\r | |
231 | ((CHAR8*)Buffer)[AsciiStrLen(Buffer)-1] = CHAR_NULL;\r | |
232 | Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, AsciiStrSize(Buffer)-sizeof(CHAR8), Buffer);\r | |
233 | }\r | |
5d73d92f | 234 | if (EFI_ERROR(Status)) {\r |
4092a8f6 | 235 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName); \r |
5d73d92f | 236 | ShellStatus = SHELL_ACCESS_DENIED;\r |
237 | } else {\r | |
238 | ASSERT(ShellStatus == SHELL_SUCCESS);\r | |
239 | }\r | |
240 | } else if (StrnCmp(Data, L"L\"", 2) == 0) {\r | |
241 | //\r | |
242 | // ucs2 text\r | |
243 | //\r | |
244 | Data++;\r | |
245 | Data++;\r | |
246 | Buffer = AllocateZeroPool(StrSize(Data));\r | |
cbdd109b | 247 | if (Buffer == NULL) {\r |
4092a8f6 | 248 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellDebug1HiiHandle, L"setvar"); \r |
cbdd109b | 249 | ShellStatus = SHELL_OUT_OF_RESOURCES;\r |
5d73d92f | 250 | } else {\r |
cbdd109b | 251 | UnicodeSPrint(Buffer, StrSize(Data), L"%s", Data);\r |
252 | ((CHAR16*)Buffer)[StrLen(Buffer)-1] = CHAR_NULL;\r | |
253 | \r | |
254 | Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, StrSize(Buffer)-sizeof(CHAR16), Buffer);\r | |
255 | if (EFI_ERROR(Status)) {\r | |
4092a8f6 | 256 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName); \r |
cbdd109b | 257 | ShellStatus = SHELL_ACCESS_DENIED;\r |
258 | } else {\r | |
259 | ASSERT(ShellStatus == SHELL_SUCCESS);\r | |
260 | }\r | |
5d73d92f | 261 | }\r |
262 | } else if (StrnCmp(Data, L"--", 2) == 0) {\r | |
263 | //\r | |
264 | // device path in text format\r | |
265 | //\r | |
266 | Data++;\r | |
267 | Data++;\r | |
863986b3 | 268 | DevPath = ConvertTextToDevicePath(Data);\r |
5d73d92f | 269 | if (DevPath == NULL) {\r |
4092a8f6 | 270 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_DPFT), gShellDebug1HiiHandle, L"setvar"); \r |
5d73d92f | 271 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
272 | } else {\r | |
273 | Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, GetDevicePathSize(DevPath), DevPath);\r | |
274 | if (EFI_ERROR(Status)) {\r | |
4092a8f6 | 275 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, L"setvar", &Guid, VariableName); \r |
5d73d92f | 276 | ShellStatus = SHELL_ACCESS_DENIED;\r |
277 | } else {\r | |
278 | ASSERT(ShellStatus == SHELL_SUCCESS);\r | |
279 | }\r | |
280 | }\r | |
281 | } else {\r | |
4092a8f6 | 282 | ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"setvar", Data); \r |
5d73d92f | 283 | ShellStatus = SHELL_INVALID_PARAMETER;\r |
284 | }\r | |
285 | }\r | |
286 | }\r | |
287 | ShellCommandLineFreeVarList (Package);\r | |
288 | }\r | |
289 | \r | |
290 | if (Buffer != NULL) {\r | |
291 | FreePool(Buffer);\r | |
292 | }\r | |
293 | \r | |
294 | if (DevPath != NULL) {\r | |
295 | FreePool(DevPath);\r | |
296 | }\r | |
297 | \r | |
298 | return (ShellStatus);\r | |
299 | }\r |