]>
Commit | Line | Data |
---|---|---|
a6caee65 | 1 | /** @file\r |
2 | *\r | |
3 | * Copyright (c) 2011, ARM Limited. All rights reserved.\r | |
a6caee65 | 4 | *\r |
3402aac7 RC |
5 | * This program and the accompanying materials\r |
6 | * are licensed and made available under the terms and conditions of the BSD License\r | |
7 | * which accompanies this distribution. The full text of the license may be found at\r | |
8 | * http://opensource.org/licenses/bsd-license.php\r | |
9 | *\r | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
a6caee65 | 12 | *\r |
13 | **/\r | |
fb334ef6 | 14 | \r |
15 | #include "Ebl.h"\r | |
a6caee65 | 16 | \r |
17 | #include <Guid/GlobalVariable.h>\r | |
fb334ef6 | 18 | \r |
19 | EFI_STATUS\r | |
20 | EblGetCmd (\r | |
21 | IN UINTN Argc,\r | |
22 | IN CHAR8 **Argv\r | |
23 | )\r | |
24 | {\r | |
25 | EFI_STATUS Status = EFI_INVALID_PARAMETER;\r | |
a6caee65 | 26 | UINTN Size;\r |
27 | VOID* Value;\r | |
28 | CHAR8* AsciiVariableName = NULL;\r | |
29 | CHAR16* VariableName;\r | |
30 | UINT32 Index;\r | |
31 | \r | |
32 | if (Argc == 1) {\r | |
33 | AsciiPrint("Variable name is missing.\n");\r | |
34 | return Status;\r | |
35 | }\r | |
36 | \r | |
37 | for (Index = 1; Index < Argc; Index++) {\r | |
38 | if (Argv[Index][0] == '-') {\r | |
39 | AsciiPrint("Warning: '%a' not recognized.\n",Argv[Index]);\r | |
40 | } else {\r | |
41 | AsciiVariableName = Argv[Index];\r | |
42 | }\r | |
43 | }\r | |
44 | \r | |
45 | if (AsciiVariableName == NULL) {\r | |
46 | AsciiPrint("Variable name is missing.\n");\r | |
47 | return Status;\r | |
48 | } else {\r | |
49 | VariableName = AllocatePool((AsciiStrLen (AsciiVariableName) + 1) * sizeof (CHAR16));\r | |
50 | AsciiStrToUnicodeStr (AsciiVariableName,VariableName);\r | |
51 | }\r | |
52 | \r | |
53 | // Try to get the variable size.\r | |
54 | Value = NULL;\r | |
55 | Size = 0;\r | |
56 | Status = gRT->GetVariable (VariableName, &gEfiGlobalVariableGuid, NULL, &Size, Value);\r | |
57 | if (Status == EFI_NOT_FOUND) {\r | |
58 | AsciiPrint("Variable name '%s' not found.\n",VariableName);\r | |
59 | } else if (Status == EFI_BUFFER_TOO_SMALL) {\r | |
60 | // Get the environment variable value\r | |
61 | Value = AllocatePool (Size);\r | |
62 | if (Value == NULL) {\r | |
63 | return EFI_OUT_OF_RESOURCES;\r | |
64 | }\r | |
65 | \r | |
66 | Status = gRT->GetVariable ((CHAR16 *)VariableName, &gEfiGlobalVariableGuid, NULL, &Size, Value);\r | |
67 | if (EFI_ERROR (Status)) {\r | |
68 | AsciiPrint("Error: '%r'\n",Status);\r | |
69 | } else {\r | |
70 | AsciiPrint("%a=%a\n",AsciiVariableName,Value);\r | |
71 | }\r | |
72 | FreePool(Value);\r | |
73 | } else {\r | |
74 | AsciiPrint("Error: '%r'\n",Status);\r | |
fb334ef6 | 75 | }\r |
76 | \r | |
77 | FreePool(VariableName);\r | |
78 | return Status;\r | |
79 | }\r | |
80 | \r | |
81 | EFI_STATUS\r | |
82 | EblSetCmd (\r | |
83 | IN UINTN Argc,\r | |
84 | IN CHAR8 **Argv\r | |
85 | )\r | |
86 | {\r | |
87 | EFI_STATUS Status = EFI_INVALID_PARAMETER;\r | |
a6caee65 | 88 | CHAR8* AsciiVariableSetting = NULL;\r |
89 | CHAR8* AsciiVariableName;\r | |
90 | CHAR8* AsciiValue;\r | |
91 | UINT32 AsciiValueLength;\r | |
92 | CHAR16* VariableName;\r | |
fb334ef6 | 93 | UINT32 Index;\r |
94 | UINT32 EscapedQuotes = 0;\r | |
95 | BOOLEAN Volatile = FALSE;\r | |
96 | \r | |
a6caee65 | 97 | if (Argc == 1) {\r |
98 | AsciiPrint("Variable name is missing.\n");\r | |
99 | return Status;\r | |
100 | }\r | |
101 | \r | |
102 | for (Index = 1; Index < Argc; Index++) {\r | |
103 | if (AsciiStrCmp(Argv[Index],"-v") == 0) {\r | |
104 | Volatile = 0;\r | |
105 | } else if (Argv[Index][0] == '-') {\r | |
106 | AsciiPrint("Warning: '%a' not recognized.\n",Argv[Index]);\r | |
107 | } else {\r | |
108 | AsciiVariableSetting = Argv[Index];\r | |
109 | }\r | |
110 | }\r | |
111 | \r | |
112 | if (AsciiVariableSetting == NULL) {\r | |
113 | AsciiPrint("Variable name is missing.\n");\r | |
114 | return Status;\r | |
115 | }\r | |
3402aac7 | 116 | \r |
a6caee65 | 117 | // Check if it is a valid variable setting\r |
fb334ef6 | 118 | AsciiValue = AsciiStrStr (AsciiVariableSetting,"=");\r |
a6caee65 | 119 | if (AsciiValue == NULL) {\r |
120 | //\r | |
121 | // There is no value. It means this variable will be deleted\r | |
122 | //\r | |
123 | \r | |
124 | // Convert VariableName into Unicode\r | |
125 | VariableName = AllocatePool((AsciiStrLen (AsciiVariableSetting) + 1) * sizeof (CHAR16));\r | |
126 | AsciiStrToUnicodeStr (AsciiVariableSetting,VariableName);\r | |
127 | \r | |
128 | Status = gRT->SetVariable (\r | |
129 | VariableName,\r | |
130 | &gEfiGlobalVariableGuid,\r | |
131 | ( !Volatile ? EFI_VARIABLE_NON_VOLATILE : 0) |\r | |
132 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
133 | 0,\r | |
134 | NULL\r | |
135 | );\r | |
136 | if (!EFI_ERROR(Status)) {\r | |
137 | AsciiPrint("Variable '%s' deleted\n",VariableName);\r | |
138 | } else {\r | |
139 | AsciiPrint("Variable setting is incorrect. It should be VariableName=Value\n");\r | |
140 | }\r | |
141 | return Status;\r | |
fb334ef6 | 142 | }\r |
143 | \r | |
144 | AsciiValue[0] = '\0';\r | |
145 | AsciiVariableName = AsciiVariableSetting;\r | |
146 | AsciiValue++;\r | |
147 | \r | |
148 | // Clean AsciiValue from quote\r | |
149 | if (AsciiValue[0] == '"') {\r | |
150 | AsciiValue++;\r | |
151 | }\r | |
152 | AsciiValueLength = AsciiStrLen (AsciiValue);\r | |
153 | if ((AsciiValue[AsciiValueLength-2] != '\\') && (AsciiValue[AsciiValueLength-1] == '"')) {\r | |
154 | AsciiValue[AsciiValueLength-1] = '\0';\r | |
155 | }\r | |
156 | \r | |
157 | // Clean AsciiValue from escaped quotes\r | |
158 | for (Index = 0; Index < AsciiValueLength; Index++) {\r | |
159 | if ((Index > 0) && (AsciiValue[Index-1] == '\\') && (AsciiValue[Index] == '"')) {\r | |
160 | EscapedQuotes++;\r | |
161 | }\r | |
162 | AsciiValue[Index-EscapedQuotes] = AsciiValue[Index];\r | |
163 | }\r | |
164 | // Fill the end of the value with '\0'\r | |
165 | for (Index = 0; Index < EscapedQuotes; Index++) {\r | |
166 | AsciiValue[AsciiValueLength-1-Index] = '\0';\r | |
167 | }\r | |
168 | \r | |
169 | // Convert VariableName into Unicode\r | |
a6caee65 | 170 | VariableName = AllocatePool((AsciiStrLen (AsciiVariableName) + 1) * sizeof (CHAR16));\r |
fb334ef6 | 171 | AsciiStrToUnicodeStr (AsciiVariableName,VariableName);\r |
172 | \r | |
a6caee65 | 173 | Status = gRT->SetVariable (\r |
174 | VariableName,\r | |
175 | &gEfiGlobalVariableGuid,\r | |
176 | ( !Volatile ? EFI_VARIABLE_NON_VOLATILE : 0) |\r | |
177 | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,\r | |
178 | AsciiStrLen (AsciiValue)+1,\r | |
179 | AsciiValue\r | |
fb334ef6 | 180 | );\r |
20fd35dc | 181 | if (!EFI_ERROR(Status)) {\r |
182 | AsciiPrint("'%a'='%a'\n",AsciiVariableName,AsciiValue);\r | |
a6caee65 | 183 | }\r |
fb334ef6 | 184 | \r |
185 | return Status;\r | |
186 | }\r | |
187 | \r | |
188 | GLOBAL_REMOVE_IF_UNREFERENCED const EBL_COMMAND_TABLE mCmdVariableTemplate[] =\r | |
189 | {\r | |
190 | {\r | |
191 | "get",\r | |
192 | " ; get UEFI variable\n\r [v]; verbose",\r | |
193 | NULL,\r | |
194 | EblGetCmd\r | |
195 | },\r | |
196 | {\r | |
197 | "set",\r | |
198 | " ; set UEFI variable\n\r [v]; create volatile variable",\r | |
199 | NULL,\r | |
200 | EblSetCmd\r | |
201 | }\r | |
202 | };\r | |
203 | \r | |
204 | /**\r | |
205 | Initialize the commands in this in this file\r | |
206 | **/\r | |
207 | VOID\r | |
208 | EblInitializeVariableCmds (\r | |
209 | VOID\r | |
210 | )\r | |
211 | {\r | |
212 | EblAddCommands (mCmdVariableTemplate, sizeof (mCmdVariableTemplate)/sizeof (EBL_COMMAND_TABLE));\r | |
213 | }\r |