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[mirror_edk2.git] / ShellPkg / Library / UefiShellLevel2CommandsLib / Vol.c
1 /** @file
2 Main file for vol shell level 2 function.
3
4 (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
5 Copyright (c) 2011 - 2018, Intel Corporation. All rights reserved.<BR>
6 SPDX-License-Identifier: BSD-2-Clause-Patent
7
8 **/
9
10 #include "UefiShellLevel2CommandsLib.h"
11 #include <Guid/FileSystemInfo.h>
12 #include <Guid/FileSystemVolumeLabelInfo.h>
13
14 /**
15 Print the info or change the volume info.
16
17 @param[in] Path String with starting path.
18 @param[in] Delete TRUE to delete the volume label. FALSE otherwise.
19 @param[in] Name New name to set to the volume label.
20
21 @retval SHELL_SUCCESS The operation was sucessful.
22 **/
23 SHELL_STATUS
24 HandleVol (
25 IN CONST CHAR16 *Path,
26 IN CONST BOOLEAN Delete,
27 IN CONST CHAR16 *Name OPTIONAL
28 )
29 {
30 EFI_STATUS Status;
31 SHELL_STATUS ShellStatus;
32 EFI_FILE_SYSTEM_INFO *SysInfo;
33 UINTN SysInfoSize;
34 SHELL_FILE_HANDLE ShellFileHandle;
35 EFI_FILE_PROTOCOL *EfiFpHandle;
36 UINTN Size1;
37 UINTN Size2;
38
39 ShellStatus = SHELL_SUCCESS;
40
41 if (
42 (Name != NULL) && (
43 (StrStr (Name, L"%") != NULL) ||
44 (StrStr (Name, L"^") != NULL) ||
45 (StrStr (Name, L"*") != NULL) ||
46 (StrStr (Name, L"+") != NULL) ||
47 (StrStr (Name, L"=") != NULL) ||
48 (StrStr (Name, L"[") != NULL) ||
49 (StrStr (Name, L"]") != NULL) ||
50 (StrStr (Name, L"|") != NULL) ||
51 (StrStr (Name, L":") != NULL) ||
52 (StrStr (Name, L";") != NULL) ||
53 (StrStr (Name, L"\"") != NULL) ||
54 (StrStr (Name, L"<") != NULL) ||
55 (StrStr (Name, L">") != NULL) ||
56 (StrStr (Name, L"?") != NULL) ||
57 (StrStr (Name, L"/") != NULL) ||
58 (StrStr (Name, L" ") != NULL))
59 )
60 {
61 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellLevel2HiiHandle, L"vol", Name);
62 return (SHELL_INVALID_PARAMETER);
63 }
64
65 Status = gEfiShellProtocol->OpenFileByName (
66 Path,
67 &ShellFileHandle,
68 Name != NULL ? EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE : EFI_FILE_MODE_READ
69 );
70
71 if (EFI_ERROR (Status) || (ShellFileHandle == NULL)) {
72 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellLevel2HiiHandle, L"vol", Path);
73 return (SHELL_ACCESS_DENIED);
74 }
75
76 //
77 // Get the Volume Info from ShellFileHandle
78 //
79 SysInfo = NULL;
80 SysInfoSize = 0;
81 EfiFpHandle = ConvertShellHandleToEfiFileProtocol (ShellFileHandle);
82 Status = EfiFpHandle->GetInfo (
83 EfiFpHandle,
84 &gEfiFileSystemInfoGuid,
85 &SysInfoSize,
86 SysInfo
87 );
88
89 if (Status == EFI_BUFFER_TOO_SMALL) {
90 SysInfo = AllocateZeroPool (SysInfoSize);
91 Status = EfiFpHandle->GetInfo (
92 EfiFpHandle,
93 &gEfiFileSystemInfoGuid,
94 &SysInfoSize,
95 SysInfo
96 );
97 }
98
99 ASSERT (SysInfo != NULL);
100
101 if (Delete) {
102 *((CHAR16 *)SysInfo->VolumeLabel) = CHAR_NULL;
103 SysInfo->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + StrSize (SysInfo->VolumeLabel);
104 Status = EfiFpHandle->SetInfo (
105 EfiFpHandle,
106 &gEfiFileSystemInfoGuid,
107 (UINTN)SysInfo->Size,
108 SysInfo
109 );
110 } else if (Name != NULL) {
111 Size1 = StrSize (Name);
112 Size2 = StrSize (SysInfo->VolumeLabel);
113 if (Size1 > Size2) {
114 SysInfo = ReallocatePool ((UINTN)SysInfo->Size, (UINTN)SysInfo->Size + Size1 - Size2, SysInfo);
115 if (SysInfo == NULL) {
116 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellLevel2HiiHandle, L"vol");
117 ShellStatus = SHELL_OUT_OF_RESOURCES;
118 }
119 }
120
121 if (SysInfo != NULL) {
122 StrCpyS (
123 (CHAR16 *)SysInfo->VolumeLabel,
124 (Size1 > Size2 ? Size1/sizeof (CHAR16) : Size2/sizeof (CHAR16)),
125 Name
126 );
127 SysInfo->Size = SIZE_OF_EFI_FILE_SYSTEM_INFO + Size1;
128 Status = EfiFpHandle->SetInfo (
129 EfiFpHandle,
130 &gEfiFileSystemInfoGuid,
131 (UINTN)SysInfo->Size,
132 SysInfo
133 );
134 }
135 }
136
137 FreePool (SysInfo);
138
139 if (Delete || (Name != NULL)) {
140 if (EFI_ERROR (Status)) {
141 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_AD), gShellLevel2HiiHandle, L"vol", Path);
142 ShellStatus = SHELL_ACCESS_DENIED;
143 }
144 }
145
146 SysInfoSize = 0;
147 SysInfo = NULL;
148
149 Status = EfiFpHandle->GetInfo (
150 EfiFpHandle,
151 &gEfiFileSystemInfoGuid,
152 &SysInfoSize,
153 SysInfo
154 );
155
156 if (Status == EFI_BUFFER_TOO_SMALL) {
157 SysInfo = AllocateZeroPool (SysInfoSize);
158 Status = EfiFpHandle->GetInfo (
159 EfiFpHandle,
160 &gEfiFileSystemInfoGuid,
161 &SysInfoSize,
162 SysInfo
163 );
164 }
165
166 gEfiShellProtocol->CloseFile (ShellFileHandle);
167
168 ASSERT (SysInfo != NULL);
169
170 if (SysInfo != NULL) {
171 //
172 // print VolumeInfo table
173 //
174 ShellPrintHiiEx (
175 0,
176 gST->ConOut->Mode->CursorRow,
177 NULL,
178 STRING_TOKEN (STR_VOL_VOLINFO),
179 gShellLevel2HiiHandle,
180 SysInfo->VolumeLabel,
181 SysInfo->ReadOnly ? L"r" : L"rw",
182 SysInfo->VolumeSize,
183 SysInfo->FreeSpace,
184 SysInfo->BlockSize
185 );
186 SHELL_FREE_NON_NULL (SysInfo);
187 }
188
189 return (ShellStatus);
190 }
191
192 STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
193 { L"-d", TypeFlag },
194 { L"-n", TypeValue },
195 { NULL, TypeMax }
196 };
197
198 /**
199 Function for 'Vol' command.
200
201 @param[in] ImageHandle Handle to the Image (NULL if Internal).
202 @param[in] SystemTable Pointer to the System Table (NULL if Internal).
203 **/
204 SHELL_STATUS
205 EFIAPI
206 ShellCommandRunVol (
207 IN EFI_HANDLE ImageHandle,
208 IN EFI_SYSTEM_TABLE *SystemTable
209 )
210 {
211 EFI_STATUS Status;
212 LIST_ENTRY *Package;
213 CHAR16 *ProblemParam;
214 SHELL_STATUS ShellStatus;
215 CONST CHAR16 *PathName;
216 CONST CHAR16 *CurDir;
217 BOOLEAN DeleteMode;
218 CHAR16 *FullPath;
219 CHAR16 *TempSpot;
220 UINTN Length;
221 CONST CHAR16 *NewName;
222
223 Length = 0;
224 ProblemParam = NULL;
225 ShellStatus = SHELL_SUCCESS;
226 PathName = NULL;
227 CurDir = NULL;
228 FullPath = NULL;
229
230 //
231 // initialize the shell lib (we must be in non-auto-init...)
232 //
233 Status = ShellInitialize ();
234 ASSERT_EFI_ERROR (Status);
235
236 //
237 // Fix local copies of the protocol pointers
238 //
239 Status = CommandInit ();
240 ASSERT_EFI_ERROR (Status);
241
242 //
243 // parse the command line
244 //
245 Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
246 if (EFI_ERROR (Status)) {
247 if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
248 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, L"vol", ProblemParam);
249 FreePool (ProblemParam);
250 ShellStatus = SHELL_INVALID_PARAMETER;
251 } else {
252 ASSERT (FALSE);
253 }
254 } else {
255 //
256 // check for "-?"
257 //
258 if (ShellCommandLineGetFlag (Package, L"-?")) {
259 ASSERT (FALSE);
260 }
261
262 if (ShellCommandLineGetCount (Package) > 2) {
263 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellLevel2HiiHandle, L"vol");
264 ShellStatus = SHELL_INVALID_PARAMETER;
265 } else {
266 PathName = ShellCommandLineGetRawValue (Package, 1);
267 if (PathName == NULL) {
268 CurDir = gEfiShellProtocol->GetCurDir (NULL);
269 if (CurDir == NULL) {
270 ShellStatus = SHELL_NOT_FOUND;
271 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_CWD), gShellLevel2HiiHandle, L"vol");
272 } else {
273 PathName = CurDir;
274 }
275 }
276
277 if (PathName != NULL) {
278 TempSpot = StrStr (PathName, L":");
279 if (TempSpot != NULL) {
280 *TempSpot = CHAR_NULL;
281 }
282
283 TempSpot = StrStr (PathName, L"\\");
284 if (TempSpot != NULL) {
285 *TempSpot = CHAR_NULL;
286 }
287
288 StrnCatGrow (&FullPath, &Length, PathName, 0);
289 StrnCatGrow (&FullPath, &Length, L":\\", 0);
290 DeleteMode = ShellCommandLineGetFlag (Package, L"-d");
291 NewName = ShellCommandLineGetValue (Package, L"-n");
292 if (DeleteMode && ShellCommandLineGetFlag (Package, L"-n")) {
293 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_CONFLICT), gShellLevel2HiiHandle, L"vol", L"-d", L"-n");
294 ShellStatus = SHELL_INVALID_PARAMETER;
295 } else if (ShellCommandLineGetFlag (Package, L"-n") && (NewName == NULL)) {
296 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellLevel2HiiHandle, L"vol", L"-n");
297 ShellStatus = SHELL_INVALID_PARAMETER;
298 } else if ((NewName != NULL) && (StrLen (NewName) > 11)) {
299 ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM_VAL), gShellLevel2HiiHandle, L"vol", NewName, L"-n");
300 ShellStatus = SHELL_INVALID_PARAMETER;
301 } else if (ShellStatus == SHELL_SUCCESS) {
302 ShellStatus = HandleVol (
303 FullPath,
304 DeleteMode,
305 NewName
306 );
307 }
308 }
309 }
310 }
311
312 SHELL_FREE_NON_NULL (FullPath);
313
314 //
315 // free the command line package
316 //
317 ShellCommandLineFreeVarList (Package);
318
319 return (ShellStatus);
320 }
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