1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
/** @file
Main file for SetVar shell Debug1 function.
Copyright (c) 2010 - 2011, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "UefiShellDebug1CommandsLib.h"
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{L"-guid", TypeValue},
{L"-bs", TypeFlag},
{L"-rt", TypeFlag},
{L"-nv", TypeFlag},
{NULL, TypeMax}
};
/**
Function for 'setvar' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunSetVar (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
CONST CHAR16 *VariableName;
CONST CHAR16 *Data;
EFI_GUID Guid;
CONST CHAR16 *StringGuid;
UINT32 Attributes;
UINT32 Attributes2;
VOID *Buffer;
UINTN Size;
UINTN LoopVar;
EFI_DEVICE_PATH_PROTOCOL *DevPath;
EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL *DevPathFromText;
ShellStatus = SHELL_SUCCESS;
Status = EFI_SUCCESS;
Buffer = NULL;
Size = 0;
Attributes = 0;
DevPath = NULL;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize();
ASSERT_EFI_ERROR(Status);
Status = CommandInit();
ASSERT_EFI_ERROR(Status);
//
// parse the command line
//
Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR(Status)) {
if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, ProblemParam);
FreePool(ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT(FALSE);
}
} else {
if (ShellCommandLineGetCount(Package) < 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetCount(Package) > 3) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
VariableName = ShellCommandLineGetRawValue(Package, 1);
Data = ShellCommandLineGetRawValue(Package, 2);
if (!ShellCommandLineGetFlag(Package, L"-guid")){
CopyGuid(&Guid, &gEfiGlobalVariableGuid);
} else {
StringGuid = ShellCommandLineGetValue(Package, L"-guid");
Status = ConvertStringToGuid(StringGuid, &Guid);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, StringGuid);
ShellStatus = SHELL_INVALID_PARAMETER;
}
}
if (Data == NULL) {
//
// Display what's there
//
Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);
if (Status == EFI_BUFFER_TOO_SMALL) {
Buffer = AllocateZeroPool(Size);
Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes, &Size, Buffer);
}
if (!EFI_ERROR(Status)&& Buffer != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_PRINT), gShellDebug1HiiHandle, &Guid, VariableName, Size);
for (LoopVar = 0 ; LoopVar < Size ; LoopVar++) {
ShellPrintEx(-1, -1, L"%02x ", ((UINT8*)Buffer)[LoopVar]);
}
ShellPrintEx(-1, -1, L"\r\n");
} else {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_GET), gShellDebug1HiiHandle, &Guid, VariableName, Status);
ShellStatus = SHELL_ACCESS_DENIED;
}
} else if (StrCmp(Data, L"=") == 0) {
//
// Delete what's there!
//
Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, 0, NULL);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, &Guid, VariableName, Status);
ShellStatus = SHELL_ACCESS_DENIED;
} else {
ASSERT(ShellStatus == SHELL_SUCCESS);
}
} else {
if (Data[0] == L'=') {
Data++;
}
//
// Change what's there
//
if (ShellCommandLineGetFlag(Package, L"-bs")) {
Attributes |= EFI_VARIABLE_BOOTSERVICE_ACCESS;
}
if (ShellCommandLineGetFlag(Package, L"-rt")) {
Attributes |= EFI_VARIABLE_RUNTIME_ACCESS;
}
if (ShellCommandLineGetFlag(Package, L"-nv")) {
Attributes |= EFI_VARIABLE_NON_VOLATILE;
}
if (ShellIsHexOrDecimalNumber(Data, TRUE, FALSE)) {
if (StrLen(Data) % 2 != 0) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellDebug1HiiHandle, Data);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
//
// arbitrary buffer
//
Buffer = AllocateZeroPool((StrLen(Data) / 2));
if (Buffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
} else {
for (LoopVar = 0 ; LoopVar < (StrLen(Data) / 2) ; LoopVar++) {
((UINT8*)Buffer)[LoopVar] = (UINT8)(HexCharToUintn(Data[LoopVar*2]) * 16);
((UINT8*)Buffer)[LoopVar] = (UINT8)(((UINT8*)Buffer)[LoopVar] + HexCharToUintn(Data[LoopVar*2+1]));
}
Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, StrLen(Data) / 2, Buffer);
}
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, &Guid, VariableName, Status);
ShellStatus = SHELL_ACCESS_DENIED;
} else {
ASSERT(ShellStatus == SHELL_SUCCESS);
}
}
} else if (StrnCmp(Data, L"\"", 1) == 0) {
Size = 0;
Attributes2 = 0;
Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes2, &Size, Buffer);
if (Status == EFI_BUFFER_TOO_SMALL) {
Buffer = AllocateZeroPool(Size);
Status = gRT->GetVariable((CHAR16*)VariableName, &Guid, &Attributes2, &Size, Buffer);
FreePool(Buffer);
Attributes = Attributes2;
}
//
// ascii text
//
Data++;
Buffer = AllocateZeroPool(StrSize(Data) / 2);
if (Buffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
} else {
AsciiSPrint(Buffer, StrSize(Data) / 2, "%s", Data);
((CHAR8*)Buffer)[AsciiStrLen(Buffer)-1] = CHAR_NULL;
Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, AsciiStrSize(Buffer)-sizeof(CHAR8), Buffer);
}
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, &Guid, VariableName, Status);
ShellStatus = SHELL_ACCESS_DENIED;
} else {
ASSERT(ShellStatus == SHELL_SUCCESS);
}
} else if (StrnCmp(Data, L"L\"", 2) == 0) {
//
// ucs2 text
//
Data++;
Data++;
Buffer = AllocateZeroPool(StrSize(Data));
if (Buffer == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellDebug1HiiHandle);
ShellStatus = SHELL_OUT_OF_RESOURCES;
} else {
UnicodeSPrint(Buffer, StrSize(Data), L"%s", Data);
((CHAR16*)Buffer)[StrLen(Buffer)-1] = CHAR_NULL;
Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, StrSize(Buffer)-sizeof(CHAR16), Buffer);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, &Guid, VariableName, Status);
ShellStatus = SHELL_ACCESS_DENIED;
} else {
ASSERT(ShellStatus == SHELL_SUCCESS);
}
}
} else if (StrnCmp(Data, L"--", 2) == 0) {
//
// device path in text format
//
Data++;
Data++;
Status = gBS->LocateProtocol(&gEfiDevicePathFromTextProtocolGuid, NULL, (VOID**)&DevPathFromText);
ASSERT_EFI_ERROR(Status);
DevPath = DevPathFromText->ConvertTextToDevicePath(Data);
if (DevPath == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_DPFT), gShellDebug1HiiHandle, Status);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Status = gRT->SetVariable((CHAR16*)VariableName, &Guid, Attributes, GetDevicePathSize(DevPath), DevPath);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SETVAR_ERROR_SET), gShellDebug1HiiHandle, &Guid, VariableName, Status);
ShellStatus = SHELL_ACCESS_DENIED;
} else {
ASSERT(ShellStatus == SHELL_SUCCESS);
}
}
} else {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Data);
ShellStatus = SHELL_INVALID_PARAMETER;
}
}
}
ShellCommandLineFreeVarList (Package);
}
if (Buffer != NULL) {
FreePool(Buffer);
}
if (DevPath != NULL) {
FreePool(DevPath);
}
return (ShellStatus);
}
|
