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a405b86d 1/** @file\r
2 Main file for attrib shell level 2 function.\r
3\r
a32980dd 4 Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>\r
a405b86d 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
12\r
13**/\r
14\r
15#include "UefiShellLevel2CommandsLib.h"\r
16\r
17STATIC CONST SHELL_PARAM_ITEM ParamList[] = {\r
18 {L"-q", TypeFlag},\r
19 {NULL, TypeMax}\r
20 };\r
21\r
b54fd049 22/**\r
23 Determine if a directory has no files in it.\r
24\r
25 @param[in] FileHandle The EFI_HANDLE to the directory.\r
26 \r
27 @retval TRUE The directory has no files (or directories).\r
28 @retval FALSE The directory has at least 1 file or directory in it.\r
29**/\r
a405b86d 30BOOLEAN\r
31EFIAPI\r
32IsDirectoryEmpty (\r
33 IN EFI_HANDLE FileHandle\r
34 )\r
35{\r
a405b86d 36 EFI_FILE_INFO *FileInfo;\r
37 BOOLEAN NoFile;\r
38 BOOLEAN RetVal;\r
39\r
40 RetVal = TRUE;\r
41 NoFile = FALSE;\r
42\r
e755a4ca 43 for (FileHandleFindFirstFile(FileHandle, &FileInfo)\r
a405b86d 44 ; !NoFile\r
e755a4ca 45 ; FileHandleFindNextFile(FileHandle, FileInfo, &NoFile)\r
a405b86d 46 ){\r
47 if (StrStr(FileInfo->FileName, L".") != FileInfo->FileName\r
48 &&StrStr(FileInfo->FileName, L"..") != FileInfo->FileName) {\r
49 RetVal = FALSE;\r
50 }\r
51 }\r
52 return (RetVal);\r
53}\r
54\r
b54fd049 55/**\r
56 Delete a node and all nodes under it (including sub directories).\r
57\r
58 @param[in] Node The node to start deleting with.\r
59 @param[in] Quiet TRUE to print no messages.\r
60\r
61 @retval SHELL_SUCCESS The operation was successful.\r
62 @retval SHELL_ACCESS_DENIED A file was read only.\r
63 @retval SHELL_ABORTED The abort message was received.\r
64 @retval SHELL_DEVICE_ERROR A device error occured reading this Node.\r
65**/\r
a405b86d 66SHELL_STATUS\r
67EFIAPI\r
68CascadeDelete(\r
69 IN EFI_SHELL_FILE_INFO *Node,\r
70 IN CONST BOOLEAN Quiet\r
71 )\r
72{\r
73 SHELL_STATUS ShellStatus;\r
74 EFI_SHELL_FILE_INFO *List;\r
75 EFI_SHELL_FILE_INFO *Node2;\r
76 EFI_STATUS Status;\r
77 SHELL_PROMPT_RESPONSE *Resp;\r
78\r
79 Resp = NULL;\r
80 ShellStatus = SHELL_SUCCESS;\r
81 List = NULL;\r
82 Status = EFI_SUCCESS;\r
83\r
84 if ((Node->Info->Attribute & EFI_FILE_READ_ONLY) == EFI_FILE_READ_ONLY) {\r
85 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DETELE_RO), gShellLevel2HiiHandle, Node->FullName);\r
86 return (SHELL_ACCESS_DENIED);\r
87 }\r
88\r
89 if ((Node->Info->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY) {\r
90 if (!IsDirectoryEmpty(Node->Handle)) {\r
91 if (!Quiet) {\r
92 Status = ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN(STR_RM_LOG_DELETE_CONF), gShellLevel2HiiHandle, Node->FullName);\r
93 Status = ShellPromptForResponse(ShellPromptResponseTypeYesNo, NULL, (VOID**)&Resp);\r
94 ASSERT_EFI_ERROR(Status);\r
95 ASSERT(Resp != NULL);\r
96 if (EFI_ERROR(Status) || *Resp != ShellPromptResponseYes) {\r
97 SHELL_FREE_NON_NULL(Resp);\r
98 return (SHELL_ABORTED);\r
99 }\r
100 SHELL_FREE_NON_NULL(Resp);\r
101 }\r
102 //\r
103 // empty out the directory\r
104 //\r
105 Status = gEfiShellProtocol->FindFilesInDir(Node->Handle, &List);\r
106 if (EFI_ERROR(Status)) {\r
107 if (List!=NULL) {\r
108 gEfiShellProtocol->FreeFileList(&List);\r
109 }\r
110 return (SHELL_DEVICE_ERROR);\r
111 }\r
112 for (Node2 = (EFI_SHELL_FILE_INFO *)GetFirstNode(&List->Link)\r
113 ; !IsNull(&List->Link, &Node2->Link)\r
114 ; Node2 = (EFI_SHELL_FILE_INFO *)GetNextNode(&List->Link, &Node2->Link)\r
115 ){\r
116 //\r
117 // skip the directory traversing stuff...\r
118 //\r
119 if (StrCmp(Node2->FileName, L".") == 0 || StrCmp(Node2->FileName, L"..") == 0) {\r
120 continue;\r
121 }\r
122 Node2->Status = gEfiShellProtocol->OpenFileByName (Node2->FullName, &Node2->Handle, EFI_FILE_MODE_READ|EFI_FILE_MODE_WRITE);\r
123 ShellStatus = CascadeDelete(Node2, Quiet);\r
124 if (ShellStatus != SHELL_SUCCESS) {\r
125 if (List!=NULL) {\r
126 gEfiShellProtocol->FreeFileList(&List);\r
127 }\r
128 return (ShellStatus);\r
129 }\r
130 }\r
131 if (List!=NULL) {\r
132 gEfiShellProtocol->FreeFileList(&List);\r
133 }\r
134 }\r
135 }\r
136\r
137 if (!(StrCmp(Node->FileName, L".") == 0 || StrCmp(Node->FileName, L"..") == 0)) {\r
138 //\r
139 // now delete the current node...\r
140 //\r
141 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE), gShellLevel2HiiHandle, Node->FullName);\r
142 Status = gEfiShellProtocol->DeleteFile(Node->Handle);\r
143 Node->Handle = NULL;\r
144 }\r
145\r
146 //\r
b54fd049 147 // We cant allow for the warning here! (Dont use EFI_ERROR Macro).\r
a405b86d 148 //\r
149 if (Status != EFI_SUCCESS){\r
150 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE_ERR), gShellLevel2HiiHandle, Status);\r
151 return (SHELL_ACCESS_DENIED);\r
152 } else {\r
153 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE_COMP), gShellLevel2HiiHandle);\r
154 return (SHELL_SUCCESS);\r
155 }\r
156}\r
157\r
b54fd049 158/**\r
159 Determins if a Node is a valid delete target. Will prevent deleting the root directory.\r
160\r
161 @param[in] List RESERVED. Not used.\r
162 @param[in] Node The node to analyze.\r
163 @param[in] Package RESERVED. Not used.\r
164**/\r
a405b86d 165BOOLEAN\r
166EFIAPI\r
167IsValidDeleteTarget(\r
168 IN CONST EFI_SHELL_FILE_INFO *List,\r
169 IN CONST EFI_SHELL_FILE_INFO *Node,\r
170 IN CONST LIST_ENTRY *Package\r
171 )\r
172{\r
173 CONST CHAR16 *TempLocation;\r
eef1ed46 174 BOOLEAN RetVal;\r
175 CHAR16 *SearchString;\r
176 CHAR16 *Pattern;\r
a405b86d 177 UINTN Size;\r
178\r
eef1ed46 179 if (Node == NULL || Node->FullName == NULL) {\r
180 return (FALSE);\r
181 }\r
182\r
a405b86d 183 TempLocation = StrStr(Node->FullName, L":");\r
eef1ed46 184 if (StrLen(TempLocation) <= 2) {\r
a405b86d 185 //\r
186 // Deleting the root directory is invalid.\r
187 //\r
188 return (FALSE);\r
189 }\r
eef1ed46 190\r
a405b86d 191 TempLocation = ShellGetCurrentDir(NULL);\r
eef1ed46 192 if (TempLocation == NULL) {\r
193 //\r
194 // No working directory is specified so whatever is left is ok.\r
195 //\r
196 return (TRUE);\r
a405b86d 197 }\r
a405b86d 198\r
eef1ed46 199 Pattern = NULL;\r
200 SearchString = NULL;\r
201 Size = 0;\r
202 Pattern = StrnCatGrow(&Pattern , NULL, TempLocation , 0);\r
203 SearchString = StrnCatGrow(&SearchString, &Size, Node->FullName, 0);\r
a32980dd 204 if (!EFI_ERROR(ShellIsDirectory(SearchString))) {\r
205 SearchString = StrnCatGrow(&SearchString, &Size, L"\\", 0);\r
206 SearchString = StrnCatGrow(&SearchString, &Size, L"*", 0);\r
207 }\r
eef1ed46 208\r
209 if (Pattern == NULL || SearchString == NULL) {\r
210 RetVal = FALSE;\r
211 } else {\r
212 RetVal = TRUE;\r
213 if (gUnicodeCollation->MetaiMatch(gUnicodeCollation, Pattern, SearchString)) {\r
214 RetVal = FALSE;\r
215 }\r
216 }\r
217\r
218 SHELL_FREE_NON_NULL(Pattern );\r
219 SHELL_FREE_NON_NULL(SearchString);\r
220\r
221 return (RetVal);\r
a405b86d 222}\r
223\r
224/**\r
225 Function for 'rm' command.\r
226\r
227 @param[in] ImageHandle Handle to the Image (NULL if Internal).\r
228 @param[in] SystemTable Pointer to the System Table (NULL if Internal).\r
229**/\r
230SHELL_STATUS\r
231EFIAPI\r
232ShellCommandRunRm (\r
233 IN EFI_HANDLE ImageHandle,\r
234 IN EFI_SYSTEM_TABLE *SystemTable\r
235 )\r
236{\r
237 EFI_STATUS Status;\r
238 LIST_ENTRY *Package;\r
239 CHAR16 *ProblemParam;\r
240 CONST CHAR16 *Param;\r
241 SHELL_STATUS ShellStatus;\r
242 UINTN ParamCount;\r
243 EFI_SHELL_FILE_INFO *FileList;\r
244 EFI_SHELL_FILE_INFO *Node;\r
245\r
246 ProblemParam = NULL;\r
247 ShellStatus = SHELL_SUCCESS;\r
248 ParamCount = 0;\r
249 FileList = NULL;\r
250\r
251 //\r
252 // initialize the shell lib (we must be in non-auto-init...)\r
253 //\r
254 Status = ShellInitialize();\r
255 ASSERT_EFI_ERROR(Status);\r
256\r
257 //\r
258 // parse the command line\r
259 //\r
260 Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);\r
261 if (EFI_ERROR(Status)) {\r
262 if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {\r
263 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellLevel2HiiHandle, ProblemParam);\r
264 FreePool(ProblemParam);\r
265 ShellStatus = SHELL_INVALID_PARAMETER;\r
266 } else {\r
267 ASSERT(FALSE);\r
268 }\r
269 } else {\r
270 //\r
271 // check for "-?"\r
272 //\r
273 if (ShellCommandLineGetFlag(Package, L"-?")) {\r
274 ASSERT(FALSE);\r
275 }\r
276 if (ShellCommandLineGetRawValue(Package, 1) == NULL) {\r
277 //\r
278 // we insufficient parameters\r
279 //\r
280 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellLevel2HiiHandle);\r
281 ShellStatus = SHELL_INVALID_PARAMETER;\r
282 } else {\r
283 //\r
284 // get a list with each file specified by parameters\r
285 // if parameter is a directory then add all the files below it to the list\r
286 //\r
287 for ( ParamCount = 1, Param = ShellCommandLineGetRawValue(Package, ParamCount)\r
288 ; Param != NULL\r
289 ; ParamCount++, Param = ShellCommandLineGetRawValue(Package, ParamCount)\r
290 ){\r
291 Status = ShellOpenFileMetaArg((CHAR16*)Param, EFI_FILE_MODE_WRITE|EFI_FILE_MODE_READ, &FileList);\r
292 if (EFI_ERROR(Status) || FileList == NULL || IsListEmpty(&FileList->Link)) {\r
293 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_NF), gShellLevel2HiiHandle, (CHAR16*)Param);\r
294 ShellStatus = SHELL_NOT_FOUND;\r
295 break;\r
296 }\r
297 }\r
298\r
299 if (ShellStatus == SHELL_SUCCESS){\r
300 //\r
301 // loop through the list and make sure we are not aborting...\r
302 //\r
303 for ( Node = (EFI_SHELL_FILE_INFO*)GetFirstNode(&FileList->Link)\r
304 ; !IsNull(&FileList->Link, &Node->Link) && !ShellGetExecutionBreakFlag()\r
305 ; Node = (EFI_SHELL_FILE_INFO*)GetNextNode(&FileList->Link, &Node->Link)\r
306 ){\r
307 //\r
308 // skip the directory traversing stuff...\r
309 //\r
310 if (StrCmp(Node->FileName, L".") == 0 || StrCmp(Node->FileName, L"..") == 0) {\r
311 continue;\r
312 }\r
313\r
314 //\r
315 // do the deleting of nodes\r
316 //\r
317 if (EFI_ERROR(Node->Status)){\r
318 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE_ERR2), gShellLevel2HiiHandle, Node->Status);\r
319 ShellStatus = SHELL_ACCESS_DENIED;\r
320 break;\r
321 }\r
322 if (!IsValidDeleteTarget(FileList, Node, Package)) {\r
323 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_RM_LOG_DELETE_ERR3), gShellLevel2HiiHandle, Node->FullName);\r
324 ShellStatus = SHELL_INVALID_PARAMETER;\r
325 break;\r
326 }\r
327\r
328 ShellStatus = CascadeDelete(Node, ShellCommandLineGetFlag(Package, L"-q"));\r
329 }\r
330 }\r
331 //\r
332 // Free the fileList\r
333 //\r
334 if (FileList != NULL) {\r
335 Status = ShellCloseFileMetaArg(&FileList);\r
336 }\r
337 FileList = NULL;\r
338 }\r
339\r
340 //\r
341 // free the command line package\r
342 //\r
343 ShellCommandLineFreeVarList (Package);\r
344 }\r
345\r
346 return (ShellStatus);\r
347}\r
348\r