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MdeModulePkg/UefiBootManagerLib: Enhance short-form expanding logic
[mirror_edk2.git] / ShellPkg / Application / Shell / Shell.c
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1/** @file\r
2 This is THE shell (application)\r
3\r
4 Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR>\r
5 (C) Copyright 2013-2014 Hewlett-Packard Development Company, L.P.<BR>\r
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 "Shell.h"\r
17\r
18//\r
19// Initialize the global structure\r
20//\r
21SHELL_INFO ShellInfoObject = {\r
22 NULL,\r
23 NULL,\r
24 FALSE,\r
25 FALSE,\r
26 {\r
27 {{\r
28 0,\r
29 0,\r
30 0,\r
31 0,\r
32 0,\r
33 0,\r
34 0,\r
35 0,\r
36 0,\r
37 0\r
38 }},\r
39 0,\r
40 NULL,\r
41 NULL\r
42 },\r
43 {{NULL, NULL}, NULL},\r
44 {\r
45 {{NULL, NULL}, NULL},\r
46 0,\r
47 0,\r
48 TRUE\r
49 },\r
50 NULL,\r
51 0,\r
52 NULL,\r
53 NULL,\r
54 NULL,\r
55 NULL,\r
56 NULL,\r
57 {{NULL, NULL}, NULL, NULL},\r
58 {{NULL, NULL}, NULL, NULL},\r
59 NULL,\r
60 NULL,\r
61 NULL,\r
62 NULL,\r
63 NULL,\r
64 NULL,\r
65 NULL,\r
66 NULL,\r
67 FALSE\r
68};\r
69\r
70STATIC CONST CHAR16 mScriptExtension[] = L".NSH";\r
71STATIC CONST CHAR16 mExecutableExtensions[] = L".NSH;.EFI";\r
72STATIC CONST CHAR16 mStartupScript[] = L"startup.nsh";\r
73CONST CHAR16 mNoNestingEnvVarName[] = L"nonesting";\r
74CONST CHAR16 mNoNestingTrue[] = L"True";\r
75CONST CHAR16 mNoNestingFalse[] = L"False";\r
76\r
77/**\r
78 Cleans off leading and trailing spaces and tabs.\r
79\r
80 @param[in] String pointer to the string to trim them off.\r
81**/\r
82EFI_STATUS\r
83TrimSpaces(\r
84 IN CHAR16 **String\r
85 )\r
86{\r
87 ASSERT(String != NULL);\r
88 ASSERT(*String!= NULL);\r
89 //\r
90 // Remove any spaces and tabs at the beginning of the (*String).\r
91 //\r
92 while (((*String)[0] == L' ') || ((*String)[0] == L'\t')) {\r
93 CopyMem((*String), (*String)+1, StrSize((*String)) - sizeof((*String)[0]));\r
94 }\r
95\r
96 //\r
97 // Remove any spaces and tabs at the end of the (*String).\r
98 //\r
99 while ((StrLen (*String) > 0) && (((*String)[StrLen((*String))-1] == L' ') || ((*String)[StrLen((*String))-1] == L'\t'))) {\r
100 (*String)[StrLen((*String))-1] = CHAR_NULL;\r
101 }\r
102\r
103 return (EFI_SUCCESS);\r
104}\r
105\r
106/**\r
107 Parse for the next instance of one string within another string. Can optionally make sure that \r
108 the string was not escaped (^ character) per the shell specification.\r
109\r
110 @param[in] SourceString The string to search within\r
111 @param[in] FindString The string to look for\r
112 @param[in] CheckForEscapeCharacter TRUE to skip escaped instances of FinfString, otherwise will return even escaped instances\r
113**/\r
114CHAR16*\r
115FindNextInstance(\r
116 IN CONST CHAR16 *SourceString,\r
117 IN CONST CHAR16 *FindString,\r
118 IN CONST BOOLEAN CheckForEscapeCharacter\r
119 )\r
120{\r
121 CHAR16 *Temp;\r
122 if (SourceString == NULL) {\r
123 return (NULL);\r
124 }\r
125 Temp = StrStr(SourceString, FindString);\r
126\r
127 //\r
128 // If nothing found, or we don't care about escape characters\r
129 //\r
130 if (Temp == NULL || !CheckForEscapeCharacter) {\r
131 return (Temp);\r
132 }\r
133\r
134 //\r
135 // If we found an escaped character, try again on the remainder of the string\r
136 //\r
137 if ((Temp > (SourceString)) && *(Temp-1) == L'^') {\r
138 return FindNextInstance(Temp+1, FindString, CheckForEscapeCharacter);\r
139 }\r
140\r
141 //\r
142 // we found the right character\r
143 //\r
144 return (Temp);\r
145}\r
146\r
147/**\r
148 Check whether the string between a pair of % is a valid environment variable name.\r
149\r
150 @param[in] BeginPercent pointer to the first percent.\r
151 @param[in] EndPercent pointer to the last percent.\r
152\r
153 @retval TRUE is a valid environment variable name.\r
154 @retval FALSE is NOT a valid environment variable name.\r
155**/\r
156BOOLEAN\r
157IsValidEnvironmentVariableName(\r
158 IN CONST CHAR16 *BeginPercent,\r
159 IN CONST CHAR16 *EndPercent\r
160 )\r
161{\r
162 CONST CHAR16 *Walker;\r
163 \r
164 Walker = NULL;\r
165\r
166 ASSERT (BeginPercent != NULL);\r
167 ASSERT (EndPercent != NULL);\r
168 ASSERT (BeginPercent < EndPercent);\r
169 \r
170 if ((BeginPercent + 1) == EndPercent) {\r
171 return FALSE;\r
172 }\r
173\r
174 for (Walker = BeginPercent + 1; Walker < EndPercent; Walker++) {\r
175 if (\r
176 (*Walker >= L'0' && *Walker <= L'9') ||\r
177 (*Walker >= L'A' && *Walker <= L'Z') ||\r
178 (*Walker >= L'a' && *Walker <= L'z') ||\r
179 (*Walker == L'_')\r
180 ) {\r
181 if (Walker == BeginPercent + 1 && (*Walker >= L'0' && *Walker <= L'9')) {\r
182 return FALSE;\r
183 } else {\r
184 continue;\r
185 }\r
186 } else {\r
187 return FALSE;\r
188 }\r
189 }\r
190\r
191 return TRUE;\r
192}\r
193\r
194/**\r
195 Determine if a command line contains a split operation\r
196\r
197 @param[in] CmdLine The command line to parse.\r
198\r
199 @retval TRUE CmdLine has a valid split.\r
200 @retval FALSE CmdLine does not have a valid split.\r
201**/\r
202BOOLEAN\r
203ContainsSplit(\r
204 IN CONST CHAR16 *CmdLine\r
205 )\r
206{\r
207 CONST CHAR16 *TempSpot;\r
208 CONST CHAR16 *FirstQuote;\r
209 CONST CHAR16 *SecondQuote;\r
210\r
211 FirstQuote = FindNextInstance (CmdLine, L"\"", TRUE);\r
212 SecondQuote = NULL;\r
213 TempSpot = FindFirstCharacter(CmdLine, L"|", L'^');\r
214\r
215 if (FirstQuote == NULL || \r
216 TempSpot == NULL || \r
217 TempSpot == CHAR_NULL || \r
218 FirstQuote > TempSpot\r
219 ) {\r
220 return (BOOLEAN) ((TempSpot != NULL) && (*TempSpot != CHAR_NULL));\r
221 }\r
222\r
223 while ((TempSpot != NULL) && (*TempSpot != CHAR_NULL)) {\r
224 if (FirstQuote == NULL || FirstQuote > TempSpot) {\r
225 break;\r
226 } \r
227 SecondQuote = FindNextInstance (FirstQuote + 1, L"\"", TRUE);\r
228 if (SecondQuote == NULL) {\r
229 break;\r
230 }\r
231 if (SecondQuote < TempSpot) {\r
232 FirstQuote = FindNextInstance (SecondQuote + 1, L"\"", TRUE);\r
233 continue;\r
234 } else {\r
235 FirstQuote = FindNextInstance (SecondQuote + 1, L"\"", TRUE);\r
236 TempSpot = FindFirstCharacter(TempSpot + 1, L"|", L'^');\r
237 continue;\r
238 } \r
239 }\r
240 \r
241 return (BOOLEAN) ((TempSpot != NULL) && (*TempSpot != CHAR_NULL));\r
242}\r
243\r
244/**\r
245 Function to start monitoring for CTRL-S using SimpleTextInputEx. This \r
246 feature's enabled state was not known when the shell initially launched.\r
247\r
248 @retval EFI_SUCCESS The feature is enabled.\r
249 @retval EFI_OUT_OF_RESOURCES There is not enough memory available.\r
250**/\r
251EFI_STATUS\r
252InternalEfiShellStartCtrlSMonitor(\r
253 VOID\r
254 )\r
255{\r
256 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL *SimpleEx;\r
257 EFI_KEY_DATA KeyData;\r
258 EFI_STATUS Status;\r
259\r
260 Status = gBS->OpenProtocol(\r
261 gST->ConsoleInHandle,\r
262 &gEfiSimpleTextInputExProtocolGuid,\r
263 (VOID**)&SimpleEx,\r
264 gImageHandle,\r
265 NULL,\r
266 EFI_OPEN_PROTOCOL_GET_PROTOCOL);\r
267 if (EFI_ERROR(Status)) {\r
268 ShellPrintHiiEx(\r
269 -1, \r
270 -1, \r
271 NULL,\r
272 STRING_TOKEN (STR_SHELL_NO_IN_EX),\r
273 ShellInfoObject.HiiHandle);\r
274 return (EFI_SUCCESS);\r
275 }\r
276\r
277 KeyData.KeyState.KeyToggleState = 0;\r
278 KeyData.Key.ScanCode = 0;\r
279 KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_LEFT_CONTROL_PRESSED;\r
280 KeyData.Key.UnicodeChar = L's';\r
281\r
282 Status = SimpleEx->RegisterKeyNotify(\r
283 SimpleEx,\r
284 &KeyData,\r
285 NotificationFunction,\r
286 &ShellInfoObject.CtrlSNotifyHandle1);\r
287 \r
288 KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_RIGHT_CONTROL_PRESSED;\r
289 if (!EFI_ERROR(Status)) {\r
290 Status = SimpleEx->RegisterKeyNotify(\r
291 SimpleEx,\r
292 &KeyData,\r
293 NotificationFunction,\r
294 &ShellInfoObject.CtrlSNotifyHandle2);\r
295 }\r
296 KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_LEFT_CONTROL_PRESSED;\r
297 KeyData.Key.UnicodeChar = 19;\r
298\r
299 if (!EFI_ERROR(Status)) {\r
300 Status = SimpleEx->RegisterKeyNotify(\r
301 SimpleEx,\r
302 &KeyData,\r
303 NotificationFunction,\r
304 &ShellInfoObject.CtrlSNotifyHandle3);\r
305 } \r
306 KeyData.KeyState.KeyShiftState = EFI_SHIFT_STATE_VALID|EFI_RIGHT_CONTROL_PRESSED;\r
307 if (!EFI_ERROR(Status)) {\r
308 Status = SimpleEx->RegisterKeyNotify(\r
309 SimpleEx,\r
310 &KeyData,\r
311 NotificationFunction,\r
312 &ShellInfoObject.CtrlSNotifyHandle4);\r
313 }\r
314 return (Status);\r
315}\r
316\r
317\r
318\r
319/**\r
320 The entry point for the application.\r
321\r
322 @param[in] ImageHandle The firmware allocated handle for the EFI image.\r
323 @param[in] SystemTable A pointer to the EFI System Table.\r
324\r
325 @retval EFI_SUCCESS The entry point is executed successfully.\r
326 @retval other Some error occurs when executing this entry point.\r
327\r
328**/\r
329EFI_STATUS\r
330EFIAPI\r
331UefiMain (\r
332 IN EFI_HANDLE ImageHandle,\r
333 IN EFI_SYSTEM_TABLE *SystemTable\r
334 )\r
335{\r
336 EFI_STATUS Status;\r
337 CHAR16 *TempString;\r
338 UINTN Size;\r
339 EFI_HANDLE ConInHandle;\r
340 EFI_SIMPLE_TEXT_INPUT_PROTOCOL *OldConIn;\r
341 SPLIT_LIST *Split;\r
342\r
343 if (PcdGet8(PcdShellSupportLevel) > 3) {\r
344 return (EFI_UNSUPPORTED);\r
345 }\r
346\r
347 //\r
348 // Clear the screen\r
349 //\r
350 Status = gST->ConOut->ClearScreen(gST->ConOut);\r
351 if (EFI_ERROR(Status)) {\r
352 return (Status);\r
353 }\r
354\r
355 //\r
356 // Populate the global structure from PCDs\r
357 //\r
358 ShellInfoObject.ImageDevPath = NULL;\r
359 ShellInfoObject.FileDevPath = NULL;\r
360 ShellInfoObject.PageBreakEnabled = PcdGetBool(PcdShellPageBreakDefault);\r
361 ShellInfoObject.ViewingSettings.InsertMode = PcdGetBool(PcdShellInsertModeDefault);\r
362 ShellInfoObject.LogScreenCount = PcdGet8 (PcdShellScreenLogCount );\r
363\r
364 //\r
365 // verify we dont allow for spec violation\r
366 //\r
367 ASSERT(ShellInfoObject.LogScreenCount >= 3);\r
368\r
369 //\r
370 // Initialize the LIST ENTRY objects...\r
371 //\r
372 InitializeListHead(&ShellInfoObject.BufferToFreeList.Link);\r
373 InitializeListHead(&ShellInfoObject.ViewingSettings.CommandHistory.Link);\r
374 InitializeListHead(&ShellInfoObject.SplitList.Link);\r
375\r
376 //\r
377 // Check PCDs for optional features that are not implemented yet.\r
378 //\r
379 if ( PcdGetBool(PcdShellSupportOldProtocols)\r
380 || !FeaturePcdGet(PcdShellRequireHiiPlatform)\r
381 || FeaturePcdGet(PcdShellSupportFrameworkHii)\r
382 ) {\r
383 return (EFI_UNSUPPORTED);\r
384 }\r
385\r
386 //\r
387 // turn off the watchdog timer\r
388 //\r
389 gBS->SetWatchdogTimer (0, 0, 0, NULL);\r
390\r
391 //\r
392 // install our console logger. This will keep a log of the output for back-browsing\r
393 //\r
394 Status = ConsoleLoggerInstall(ShellInfoObject.LogScreenCount, &ShellInfoObject.ConsoleInfo);\r
395 if (!EFI_ERROR(Status)) {\r
396 //\r
397 // Enable the cursor to be visible\r
398 //\r
399 gST->ConOut->EnableCursor (gST->ConOut, TRUE);\r
400\r
401 //\r
402 // If supporting EFI 1.1 we need to install HII protocol\r
403 // only do this if PcdShellRequireHiiPlatform == FALSE\r
404 //\r
405 // remove EFI_UNSUPPORTED check above when complete.\r
406 ///@todo add support for Framework HII\r
407\r
408 //\r
409 // install our (solitary) HII package\r
410 //\r
411 ShellInfoObject.HiiHandle = HiiAddPackages (&gEfiCallerIdGuid, gImageHandle, ShellStrings, NULL);\r
412 if (ShellInfoObject.HiiHandle == NULL) {\r
413 if (PcdGetBool(PcdShellSupportFrameworkHii)) {\r
414 ///@todo Add our package into Framework HII\r
415 }\r
416 if (ShellInfoObject.HiiHandle == NULL) {\r
417 Status = EFI_NOT_STARTED;\r
418 goto FreeResources;\r
419 }\r
420 }\r
421\r
422 //\r
423 // create and install the EfiShellParametersProtocol\r
424 //\r
425 Status = CreatePopulateInstallShellParametersProtocol(&ShellInfoObject.NewShellParametersProtocol, &ShellInfoObject.RootShellInstance);\r
426 ASSERT_EFI_ERROR(Status);\r
427 ASSERT(ShellInfoObject.NewShellParametersProtocol != NULL);\r
428\r
429 //\r
430 // create and install the EfiShellProtocol\r
431 //\r
432 Status = CreatePopulateInstallShellProtocol(&ShellInfoObject.NewEfiShellProtocol);\r
433 ASSERT_EFI_ERROR(Status);\r
434 ASSERT(ShellInfoObject.NewEfiShellProtocol != NULL);\r
435\r
436 //\r
437 // Now initialize the shell library (it requires Shell Parameters protocol)\r
438 //\r
439 Status = ShellInitialize();\r
440 ASSERT_EFI_ERROR(Status);\r
441\r
442 Status = CommandInit();\r
443 ASSERT_EFI_ERROR(Status);\r
444\r
445 Status = ShellInitEnvVarList ();\r
446\r
447 //\r
448 // Check the command line\r
449 //\r
450 Status = ProcessCommandLine ();\r
451 if (EFI_ERROR (Status)) {\r
452 goto FreeResources;\r
453 }\r
454\r
455 //\r
456 // If shell support level is >= 1 create the mappings and paths\r
457 //\r
458 if (PcdGet8(PcdShellSupportLevel) >= 1) {\r
459 Status = ShellCommandCreateInitialMappingsAndPaths();\r
460 }\r
461\r
462 //\r
463 // Set the environment variable for nesting support\r
464 //\r
465 Size = 0;\r
466 TempString = NULL;\r
467 if (!ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoNest) {\r
468 //\r
469 // No change. require nesting in Shell Protocol Execute()\r
470 //\r
471 StrnCatGrow(&TempString,\r
472 &Size,\r
473 L"False",\r
474 0);\r
475 } else {\r
476 StrnCatGrow(&TempString,\r
477 &Size,\r
478 mNoNestingTrue,\r
479 0);\r
480 }\r
481 Status = InternalEfiShellSetEnv(mNoNestingEnvVarName, TempString, TRUE);\r
482 SHELL_FREE_NON_NULL(TempString);\r
483 Size = 0;\r
484\r
485 //\r
486 // save the device path for the loaded image and the device path for the filepath (under loaded image)\r
487 // These are where to look for the startup.nsh file\r
488 //\r
489 Status = GetDevicePathsForImageAndFile(&ShellInfoObject.ImageDevPath, &ShellInfoObject.FileDevPath);\r
490 ASSERT_EFI_ERROR(Status);\r
491\r
492 //\r
493 // Display the version\r
494 //\r
495 if (!ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoVersion) {\r
496 ShellPrintHiiEx (\r
497 0,\r
498 gST->ConOut->Mode->CursorRow,\r
499 NULL,\r
500 STRING_TOKEN (STR_VER_OUTPUT_MAIN_SHELL),\r
501 ShellInfoObject.HiiHandle,\r
502 SupportLevel[PcdGet8(PcdShellSupportLevel)],\r
503 gEfiShellProtocol->MajorVersion,\r
504 gEfiShellProtocol->MinorVersion\r
505 );\r
506\r
507 ShellPrintHiiEx (\r
508 -1,\r
509 -1,\r
510 NULL,\r
511 STRING_TOKEN (STR_VER_OUTPUT_MAIN_SUPPLIER),\r
512 ShellInfoObject.HiiHandle,\r
513 (CHAR16 *) PcdGetPtr (PcdShellSupplier)\r
514 );\r
515\r
516 ShellPrintHiiEx (\r
517 -1,\r
518 -1,\r
519 NULL,\r
520 STRING_TOKEN (STR_VER_OUTPUT_MAIN_UEFI),\r
521 ShellInfoObject.HiiHandle,\r
522 (gST->Hdr.Revision&0xffff0000)>>16,\r
523 (gST->Hdr.Revision&0x0000ffff),\r
524 gST->FirmwareVendor,\r
525 gST->FirmwareRevision\r
526 );\r
527 }\r
528\r
529 //\r
530 // Display the mapping\r
531 //\r
532 if (PcdGet8(PcdShellSupportLevel) >= 2 && !ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoMap) {\r
533 Status = RunCommand(L"map");\r
534 ASSERT_EFI_ERROR(Status);\r
535 }\r
536\r
537 //\r
538 // init all the built in alias'\r
539 //\r
540 Status = SetBuiltInAlias();\r
541 ASSERT_EFI_ERROR(Status);\r
542\r
543 //\r
544 // Initialize environment variables\r
545 //\r
546 if (ShellCommandGetProfileList() != NULL) {\r
547 Status = InternalEfiShellSetEnv(L"profiles", ShellCommandGetProfileList(), TRUE);\r
548 ASSERT_EFI_ERROR(Status);\r
549 }\r
550\r
551 Size = 100;\r
552 TempString = AllocateZeroPool(Size);\r
553\r
554 UnicodeSPrint(TempString, Size, L"%d", PcdGet8(PcdShellSupportLevel));\r
555 Status = InternalEfiShellSetEnv(L"uefishellsupport", TempString, TRUE);\r
556 ASSERT_EFI_ERROR(Status);\r
557\r
558 UnicodeSPrint(TempString, Size, L"%d.%d", ShellInfoObject.NewEfiShellProtocol->MajorVersion, ShellInfoObject.NewEfiShellProtocol->MinorVersion);\r
559 Status = InternalEfiShellSetEnv(L"uefishellversion", TempString, TRUE);\r
560 ASSERT_EFI_ERROR(Status);\r
561\r
562 UnicodeSPrint(TempString, Size, L"%d.%d", (gST->Hdr.Revision & 0xFFFF0000) >> 16, gST->Hdr.Revision & 0x0000FFFF);\r
563 Status = InternalEfiShellSetEnv(L"uefiversion", TempString, TRUE);\r
564 ASSERT_EFI_ERROR(Status);\r
565\r
566 FreePool(TempString);\r
567\r
568 if (!EFI_ERROR(Status)) {\r
569 if (!ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoInterrupt) {\r
570 //\r
571 // Set up the event for CTRL-C monitoring...\r
572 //\r
573 Status = InernalEfiShellStartMonitor();\r
574 }\r
575\r
576 if (!EFI_ERROR(Status) && !ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleIn) {\r
577 //\r
578 // Set up the event for CTRL-S monitoring...\r
579 //\r
580 Status = InternalEfiShellStartCtrlSMonitor();\r
581 }\r
582\r
583 if (!EFI_ERROR(Status) && ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleIn) {\r
584 //\r
585 // close off the gST->ConIn\r
586 //\r
587 OldConIn = gST->ConIn;\r
588 ConInHandle = gST->ConsoleInHandle;\r
589 gST->ConIn = CreateSimpleTextInOnFile((SHELL_FILE_HANDLE)&FileInterfaceNulFile, &gST->ConsoleInHandle);\r
590 } else {\r
591 OldConIn = NULL;\r
592 ConInHandle = NULL;\r
593 }\r
594\r
595 if (!EFI_ERROR(Status) && PcdGet8(PcdShellSupportLevel) >= 1) {\r
596 //\r
597 // process the startup script or launch the called app.\r
598 //\r
599 Status = DoStartupScript(ShellInfoObject.ImageDevPath, ShellInfoObject.FileDevPath);\r
600 }\r
601\r
602 if (!ShellInfoObject.ShellInitSettings.BitUnion.Bits.Exit && !ShellCommandGetExit() && (PcdGet8(PcdShellSupportLevel) >= 3 || PcdGetBool(PcdShellForceConsole)) && !EFI_ERROR(Status) && !ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleIn) {\r
603 //\r
604 // begin the UI waiting loop\r
605 //\r
606 do {\r
607 //\r
608 // clean out all the memory allocated for CONST <something> * return values\r
609 // between each shell prompt presentation\r
610 //\r
611 if (!IsListEmpty(&ShellInfoObject.BufferToFreeList.Link)){\r
612 FreeBufferList(&ShellInfoObject.BufferToFreeList);\r
613 }\r
614\r
615 //\r
616 // Reset page break back to default.\r
617 //\r
618 ShellInfoObject.PageBreakEnabled = PcdGetBool(PcdShellPageBreakDefault);\r
619 ASSERT (ShellInfoObject.ConsoleInfo != NULL);\r
620 ShellInfoObject.ConsoleInfo->Enabled = TRUE;\r
621 ShellInfoObject.ConsoleInfo->RowCounter = 0;\r
622\r
623 //\r
624 // Reset the CTRL-C event (yes we ignore the return values)\r
625 //\r
626 Status = gBS->CheckEvent (ShellInfoObject.NewEfiShellProtocol->ExecutionBreak);\r
627\r
628 //\r
629 // Display Prompt\r
630 //\r
631 Status = DoShellPrompt();\r
632 } while (!ShellCommandGetExit());\r
633 }\r
634 if (OldConIn != NULL && ConInHandle != NULL) {\r
635 CloseSimpleTextInOnFile (gST->ConIn);\r
636 gST->ConIn = OldConIn;\r
637 gST->ConsoleInHandle = ConInHandle;\r
638 }\r
639 }\r
640 }\r
641\r
642FreeResources:\r
643 //\r
644 // uninstall protocols / free memory / etc...\r
645 //\r
646 if (ShellInfoObject.UserBreakTimer != NULL) {\r
647 gBS->CloseEvent(ShellInfoObject.UserBreakTimer);\r
648 DEBUG_CODE(ShellInfoObject.UserBreakTimer = NULL;);\r
649 }\r
650 if (ShellInfoObject.ImageDevPath != NULL) {\r
651 FreePool(ShellInfoObject.ImageDevPath);\r
652 DEBUG_CODE(ShellInfoObject.ImageDevPath = NULL;);\r
653 }\r
654 if (ShellInfoObject.FileDevPath != NULL) {\r
655 FreePool(ShellInfoObject.FileDevPath);\r
656 DEBUG_CODE(ShellInfoObject.FileDevPath = NULL;);\r
657 }\r
658 if (ShellInfoObject.NewShellParametersProtocol != NULL) {\r
659 CleanUpShellParametersProtocol(ShellInfoObject.NewShellParametersProtocol);\r
660 DEBUG_CODE(ShellInfoObject.NewShellParametersProtocol = NULL;);\r
661 }\r
662 if (ShellInfoObject.NewEfiShellProtocol != NULL){\r
663 if (ShellInfoObject.NewEfiShellProtocol->IsRootShell()){\r
664 InternalEfiShellSetEnv(L"cwd", NULL, TRUE);\r
665 }\r
666 CleanUpShellEnvironment (ShellInfoObject.NewEfiShellProtocol);\r
667 DEBUG_CODE(ShellInfoObject.NewEfiShellProtocol = NULL;);\r
668 }\r
669\r
670 if (!IsListEmpty(&ShellInfoObject.BufferToFreeList.Link)){\r
671 FreeBufferList(&ShellInfoObject.BufferToFreeList);\r
672 }\r
673\r
674 if (!IsListEmpty(&ShellInfoObject.SplitList.Link)){\r
675 ASSERT(FALSE); ///@todo finish this de-allocation (free SplitStdIn/Out when needed).\r
676\r
677 for ( Split = (SPLIT_LIST*)GetFirstNode (&ShellInfoObject.SplitList.Link)\r
678 ; !IsNull (&ShellInfoObject.SplitList.Link, &Split->Link)\r
679 ; Split = (SPLIT_LIST *)GetNextNode (&ShellInfoObject.SplitList.Link, &Split->Link)\r
680 ) {\r
681 RemoveEntryList (&Split->Link);\r
682 FreePool (Split);\r
683 }\r
684\r
685 DEBUG_CODE (InitializeListHead (&ShellInfoObject.SplitList.Link););\r
686 }\r
687\r
688 if (ShellInfoObject.ShellInitSettings.FileName != NULL) {\r
689 FreePool(ShellInfoObject.ShellInitSettings.FileName);\r
690 DEBUG_CODE(ShellInfoObject.ShellInitSettings.FileName = NULL;);\r
691 }\r
692\r
693 if (ShellInfoObject.ShellInitSettings.FileOptions != NULL) {\r
694 FreePool(ShellInfoObject.ShellInitSettings.FileOptions);\r
695 DEBUG_CODE(ShellInfoObject.ShellInitSettings.FileOptions = NULL;);\r
696 }\r
697\r
698 if (ShellInfoObject.HiiHandle != NULL) {\r
699 HiiRemovePackages(ShellInfoObject.HiiHandle);\r
700 DEBUG_CODE(ShellInfoObject.HiiHandle = NULL;);\r
701 }\r
702\r
703 if (!IsListEmpty(&ShellInfoObject.ViewingSettings.CommandHistory.Link)){\r
704 FreeBufferList(&ShellInfoObject.ViewingSettings.CommandHistory);\r
705 }\r
706\r
707 ASSERT(ShellInfoObject.ConsoleInfo != NULL);\r
708 if (ShellInfoObject.ConsoleInfo != NULL) {\r
709 ConsoleLoggerUninstall(ShellInfoObject.ConsoleInfo);\r
710 FreePool(ShellInfoObject.ConsoleInfo);\r
711 DEBUG_CODE(ShellInfoObject.ConsoleInfo = NULL;);\r
712 }\r
713\r
714 ShellFreeEnvVarList ();\r
715\r
716 if (ShellCommandGetExit()) {\r
717 return ((EFI_STATUS)ShellCommandGetExitCode());\r
718 }\r
719 return (Status);\r
720}\r
721\r
722/**\r
723 Sets all the alias' that were registered with the ShellCommandLib library.\r
724\r
725 @retval EFI_SUCCESS all init commands were run successfully.\r
726**/\r
727EFI_STATUS\r
728SetBuiltInAlias(\r
729 )\r
730{\r
731 EFI_STATUS Status;\r
732 CONST ALIAS_LIST *List;\r
733 ALIAS_LIST *Node;\r
734\r
735 //\r
736 // Get all the commands we want to run\r
737 //\r
738 List = ShellCommandGetInitAliasList();\r
739\r
740 //\r
741 // for each command in the List\r
742 //\r
743 for ( Node = (ALIAS_LIST*)GetFirstNode(&List->Link)\r
744 ; !IsNull (&List->Link, &Node->Link)\r
745 ; Node = (ALIAS_LIST *)GetNextNode(&List->Link, &Node->Link)\r
746 ){\r
747 //\r
748 // install the alias'\r
749 //\r
750 Status = InternalSetAlias(Node->CommandString, Node->Alias, TRUE);\r
751 ASSERT_EFI_ERROR(Status);\r
752 }\r
753 return (EFI_SUCCESS);\r
754}\r
755\r
756/**\r
757 Internal function to determine if 2 command names are really the same.\r
758\r
759 @param[in] Command1 The pointer to the first command name.\r
760 @param[in] Command2 The pointer to the second command name.\r
761\r
762 @retval TRUE The 2 command names are the same.\r
763 @retval FALSE The 2 command names are not the same.\r
764**/\r
765BOOLEAN\r
766IsCommand(\r
767 IN CONST CHAR16 *Command1,\r
768 IN CONST CHAR16 *Command2\r
769 )\r
770{\r
771 if (StringNoCaseCompare(&Command1, &Command2) == 0) {\r
772 return (TRUE);\r
773 }\r
774 return (FALSE);\r
775}\r
776\r
777/**\r
778 Internal function to determine if a command is a script only command.\r
779\r
780 @param[in] CommandName The pointer to the command name.\r
781\r
782 @retval TRUE The command is a script only command.\r
783 @retval FALSE The command is not a script only command.\r
784**/\r
785BOOLEAN\r
786IsScriptOnlyCommand(\r
787 IN CONST CHAR16 *CommandName\r
788 )\r
789{\r
790 if (IsCommand(CommandName, L"for")\r
791 ||IsCommand(CommandName, L"endfor")\r
792 ||IsCommand(CommandName, L"if")\r
793 ||IsCommand(CommandName, L"else")\r
794 ||IsCommand(CommandName, L"endif")\r
795 ||IsCommand(CommandName, L"goto")) {\r
796 return (TRUE);\r
797 }\r
798 return (FALSE);\r
799}\r
800\r
801/**\r
802 This function will populate the 2 device path protocol parameters based on the\r
803 global gImageHandle. The DevPath will point to the device path for the handle that has\r
804 loaded image protocol installed on it. The FilePath will point to the device path\r
805 for the file that was loaded.\r
806\r
807 @param[in, out] DevPath On a successful return the device path to the loaded image.\r
808 @param[in, out] FilePath On a successful return the device path to the file.\r
809\r
810 @retval EFI_SUCCESS The 2 device paths were successfully returned.\r
811 @retval other A error from gBS->HandleProtocol.\r
812\r
813 @sa HandleProtocol\r
814**/\r
815EFI_STATUS\r
816GetDevicePathsForImageAndFile (\r
817 IN OUT EFI_DEVICE_PATH_PROTOCOL **DevPath,\r
818 IN OUT EFI_DEVICE_PATH_PROTOCOL **FilePath\r
819 )\r
820{\r
821 EFI_STATUS Status;\r
822 EFI_LOADED_IMAGE_PROTOCOL *LoadedImage;\r
823 EFI_DEVICE_PATH_PROTOCOL *ImageDevicePath;\r
824\r
825 ASSERT(DevPath != NULL);\r
826 ASSERT(FilePath != NULL);\r
827\r
828 Status = gBS->OpenProtocol (\r
829 gImageHandle,\r
830 &gEfiLoadedImageProtocolGuid,\r
831 (VOID**)&LoadedImage,\r
832 gImageHandle,\r
833 NULL,\r
834 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
835 );\r
836 if (!EFI_ERROR (Status)) {\r
837 Status = gBS->OpenProtocol (\r
838 LoadedImage->DeviceHandle,\r
839 &gEfiDevicePathProtocolGuid,\r
840 (VOID**)&ImageDevicePath,\r
841 gImageHandle,\r
842 NULL,\r
843 EFI_OPEN_PROTOCOL_GET_PROTOCOL\r
844 );\r
845 if (!EFI_ERROR (Status)) {\r
846 *DevPath = DuplicateDevicePath (ImageDevicePath);\r
847 *FilePath = DuplicateDevicePath (LoadedImage->FilePath);\r
848 gBS->CloseProtocol(\r
849 LoadedImage->DeviceHandle,\r
850 &gEfiDevicePathProtocolGuid,\r
851 gImageHandle,\r
852 NULL);\r
853 }\r
854 gBS->CloseProtocol(\r
855 gImageHandle,\r
856 &gEfiLoadedImageProtocolGuid,\r
857 gImageHandle,\r
858 NULL);\r
859 }\r
860 return (Status);\r
861}\r
862\r
863/**\r
864 Process all Uefi Shell 2.0 command line options.\r
865\r
866 see Uefi Shell 2.0 section 3.2 for full details.\r
867\r
868 the command line must resemble the following:\r
869\r
870 shell.efi [ShellOpt-options] [options] [file-name [file-name-options]]\r
871\r
872 ShellOpt-options Options which control the initialization behavior of the shell.\r
873 These options are read from the EFI global variable "ShellOpt"\r
874 and are processed before options or file-name.\r
875\r
876 options Options which control the initialization behavior of the shell.\r
877\r
878 file-name The name of a UEFI shell application or script to be executed\r
879 after initialization is complete. By default, if file-name is\r
880 specified, then -nostartup is implied. Scripts are not supported\r
881 by level 0.\r
882\r
883 file-name-options The command-line options that are passed to file-name when it\r
884 is invoked.\r
885\r
886 This will initialize the ShellInfoObject.ShellInitSettings global variable.\r
887\r
888 @retval EFI_SUCCESS The variable is initialized.\r
889**/\r
890EFI_STATUS\r
891ProcessCommandLine(\r
892 VOID\r
893 )\r
894{\r
895 UINTN Size;\r
896 UINTN LoopVar;\r
897 CHAR16 *CurrentArg;\r
898 CHAR16 *DelayValueStr;\r
899 UINT64 DelayValue;\r
900 EFI_STATUS Status;\r
901 EFI_UNICODE_COLLATION_PROTOCOL *UnicodeCollation;\r
902\r
903 // `file-name-options` will contain arguments to `file-name` that we don't\r
904 // know about. This would cause ShellCommandLineParse to error, so we parse\r
905 // arguments manually, ignoring those after the first thing that doesn't look\r
906 // like a shell option (which is assumed to be `file-name`).\r
907\r
908 Status = gBS->LocateProtocol (\r
909 &gEfiUnicodeCollation2ProtocolGuid,\r
910 NULL,\r
911 (VOID **) &UnicodeCollation\r
912 );\r
913 if (EFI_ERROR (Status)) {\r
914 Status = gBS->LocateProtocol (\r
915 &gEfiUnicodeCollationProtocolGuid,\r
916 NULL,\r
917 (VOID **) &UnicodeCollation\r
918 );\r
919 if (EFI_ERROR (Status)) {\r
920 return Status;\r
921 }\r
922 }\r
923\r
924 // Set default options\r
925 ShellInfoObject.ShellInitSettings.BitUnion.Bits.Startup = FALSE;\r
926 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoStartup = FALSE;\r
927 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleOut = FALSE;\r
928 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleIn = FALSE;\r
929 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoInterrupt = FALSE;\r
930 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoMap = FALSE;\r
931 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoVersion = FALSE;\r
932 ShellInfoObject.ShellInitSettings.BitUnion.Bits.Delay = FALSE;\r
933 ShellInfoObject.ShellInitSettings.BitUnion.Bits.Exit = FALSE;\r
934 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoNest = FALSE;\r
935 ShellInfoObject.ShellInitSettings.Delay = 5;\r
936\r
937 //\r
938 // Start LoopVar at 0 to parse only optional arguments at Argv[0]\r
939 // and parse other parameters from Argv[1]. This is for use case that\r
940 // UEFI Shell boot option is created, and OptionalData is provided\r
941 // that starts with shell command-line options.\r
942 //\r
943 for (LoopVar = 0 ; LoopVar < gEfiShellParametersProtocol->Argc ; LoopVar++) {\r
944 CurrentArg = gEfiShellParametersProtocol->Argv[LoopVar];\r
945 if (UnicodeCollation->StriColl (\r
946 UnicodeCollation,\r
947 L"-startup",\r
948 CurrentArg\r
949 ) == 0) {\r
950 ShellInfoObject.ShellInitSettings.BitUnion.Bits.Startup = TRUE;\r
951 }\r
952 else if (UnicodeCollation->StriColl (\r
953 UnicodeCollation,\r
954 L"-nostartup",\r
955 CurrentArg\r
956 ) == 0) {\r
957 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoStartup = TRUE;\r
958 }\r
959 else if (UnicodeCollation->StriColl (\r
960 UnicodeCollation,\r
961 L"-noconsoleout",\r
962 CurrentArg\r
963 ) == 0) {\r
964 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleOut = TRUE;\r
965 }\r
966 else if (UnicodeCollation->StriColl (\r
967 UnicodeCollation,\r
968 L"-noconsolein",\r
969 CurrentArg\r
970 ) == 0) {\r
971 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleIn = TRUE;\r
972 }\r
973 else if (UnicodeCollation->StriColl (\r
974 UnicodeCollation,\r
975 L"-nointerrupt",\r
976 CurrentArg\r
977 ) == 0) {\r
978 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoInterrupt = TRUE;\r
979 }\r
980 else if (UnicodeCollation->StriColl (\r
981 UnicodeCollation,\r
982 L"-nomap",\r
983 CurrentArg\r
984 ) == 0) {\r
985 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoMap = TRUE;\r
986 }\r
987 else if (UnicodeCollation->StriColl (\r
988 UnicodeCollation,\r
989 L"-noversion",\r
990 CurrentArg\r
991 ) == 0) {\r
992 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoVersion = TRUE;\r
993 }\r
994 else if (UnicodeCollation->StriColl (\r
995 UnicodeCollation,\r
996 L"-nonest",\r
997 CurrentArg\r
998 ) == 0) {\r
999 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoNest = TRUE;\r
1000 }\r
1001 else if (UnicodeCollation->StriColl (\r
1002 UnicodeCollation,\r
1003 L"-delay",\r
1004 CurrentArg\r
1005 ) == 0) {\r
1006 ShellInfoObject.ShellInitSettings.BitUnion.Bits.Delay = TRUE;\r
1007 // Check for optional delay value following "-delay"\r
1008 DelayValueStr = gEfiShellParametersProtocol->Argv[LoopVar + 1];\r
1009 if (DelayValueStr != NULL){\r
1010 if (*DelayValueStr == L':') {\r
1011 DelayValueStr++;\r
1012 }\r
1013 if (!EFI_ERROR(ShellConvertStringToUint64 (\r
1014 DelayValueStr,\r
1015 &DelayValue,\r
1016 FALSE,\r
1017 FALSE\r
1018 ))) {\r
1019 ShellInfoObject.ShellInitSettings.Delay = (UINTN)DelayValue;\r
1020 LoopVar++;\r
1021 }\r
1022 }\r
1023 } else if (UnicodeCollation->StriColl (\r
1024 UnicodeCollation,\r
1025 L"-exit",\r
1026 CurrentArg\r
1027 ) == 0) {\r
1028 ShellInfoObject.ShellInitSettings.BitUnion.Bits.Exit = TRUE;\r
1029 } else if (StrnCmp (L"-", CurrentArg, 1) == 0) {\r
1030 // Unrecognized option\r
1031 ShellPrintHiiEx(-1, -1, NULL,\r
1032 STRING_TOKEN (STR_GEN_PROBLEM),\r
1033 ShellInfoObject.HiiHandle,\r
1034 CurrentArg\r
1035 );\r
1036 return EFI_INVALID_PARAMETER;\r
1037 } else {\r
1038 //\r
1039 // First argument should be Shell.efi image name\r
1040 //\r
1041 if (LoopVar == 0) {\r
1042 continue;\r
1043 }\r
1044\r
1045 ShellInfoObject.ShellInitSettings.FileName = NULL;\r
1046 Size = 0;\r
1047 //\r
1048 // If first argument contains a space, then add double quotes before the argument\r
1049 //\r
1050 if (StrStr (CurrentArg, L" ") != NULL) {\r
1051 StrnCatGrow(&ShellInfoObject.ShellInitSettings.FileName, &Size, L"\"", 0);\r
1052 if (ShellInfoObject.ShellInitSettings.FileName == NULL) {\r
1053 return (EFI_OUT_OF_RESOURCES);\r
1054 }\r
1055 }\r
1056 StrnCatGrow(&ShellInfoObject.ShellInitSettings.FileName, &Size, CurrentArg, 0);\r
1057 if (ShellInfoObject.ShellInitSettings.FileName == NULL) {\r
1058 return (EFI_OUT_OF_RESOURCES);\r
1059 }\r
1060 //\r
1061 // If first argument contains a space, then add double quotes after the argument\r
1062 //\r
1063 if (StrStr (CurrentArg, L" ") != NULL) {\r
1064 StrnCatGrow(&ShellInfoObject.ShellInitSettings.FileName, &Size, L"\"", 0);\r
1065 if (ShellInfoObject.ShellInitSettings.FileName == NULL) {\r
1066 return (EFI_OUT_OF_RESOURCES);\r
1067 }\r
1068 }\r
1069 //\r
1070 // We found `file-name`.\r
1071 //\r
1072 ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoStartup = 1;\r
1073 LoopVar++;\r
1074\r
1075 // Add `file-name-options`\r
1076 for (Size = 0 ; LoopVar < gEfiShellParametersProtocol->Argc ; LoopVar++) {\r
1077 ASSERT((ShellInfoObject.ShellInitSettings.FileOptions == NULL && Size == 0) || (ShellInfoObject.ShellInitSettings.FileOptions != NULL));\r
1078 //\r
1079 // Add a space between arguments\r
1080 //\r
1081 if (ShellInfoObject.ShellInitSettings.FileOptions != NULL) {\r
1082 StrnCatGrow(&ShellInfoObject.ShellInitSettings.FileOptions, &Size, L" ", 0);\r
1083 if (ShellInfoObject.ShellInitSettings.FileOptions == NULL) {\r
1084 SHELL_FREE_NON_NULL(ShellInfoObject.ShellInitSettings.FileName);\r
1085 return (EFI_OUT_OF_RESOURCES);\r
1086 }\r
1087 }\r
1088 //\r
1089 // If an argumnent contains a space, then add double quotes before the argument\r
1090 //\r
1091 if (StrStr (gEfiShellParametersProtocol->Argv[LoopVar], L" ") != NULL) {\r
1092 StrnCatGrow(&ShellInfoObject.ShellInitSettings.FileOptions,\r
1093 &Size,\r
1094 L"\"",\r
1095 0);\r
1096 if (ShellInfoObject.ShellInitSettings.FileOptions == NULL) {\r
1097 SHELL_FREE_NON_NULL(ShellInfoObject.ShellInitSettings.FileName);\r
1098 return (EFI_OUT_OF_RESOURCES);\r
1099 }\r
1100 }\r
1101 StrnCatGrow(&ShellInfoObject.ShellInitSettings.FileOptions,\r
1102 &Size,\r
1103 gEfiShellParametersProtocol->Argv[LoopVar],\r
1104 0);\r
1105 if (ShellInfoObject.ShellInitSettings.FileOptions == NULL) {\r
1106 SHELL_FREE_NON_NULL(ShellInfoObject.ShellInitSettings.FileName);\r
1107 return (EFI_OUT_OF_RESOURCES);\r
1108 }\r
1109 //\r
1110 // If an argumnent contains a space, then add double quotes after the argument\r
1111 //\r
1112 if (StrStr (gEfiShellParametersProtocol->Argv[LoopVar], L" ") != NULL) {\r
1113 StrnCatGrow(&ShellInfoObject.ShellInitSettings.FileOptions,\r
1114 &Size,\r
1115 L"\"",\r
1116 0);\r
1117 if (ShellInfoObject.ShellInitSettings.FileOptions == NULL) {\r
1118 SHELL_FREE_NON_NULL(ShellInfoObject.ShellInitSettings.FileName);\r
1119 return (EFI_OUT_OF_RESOURCES);\r
1120 }\r
1121 }\r
1122 }\r
1123 }\r
1124 }\r
1125\r
1126 // "-nointerrupt" overrides "-delay"\r
1127 if (ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoInterrupt) {\r
1128 ShellInfoObject.ShellInitSettings.Delay = 0;\r
1129 }\r
1130\r
1131 return EFI_SUCCESS;\r
1132}\r
1133\r
1134/**\r
1135 Function try to find location of the Startup.nsh file.\r
1136 \r
1137 The buffer is callee allocated and should be freed by the caller.\r
1138\r
1139 @param ImageDevicePath The path to the image for shell. first place to look for the startup script\r
1140 @param FileDevicePath The path to the file for shell. second place to look for the startup script.\r
1141\r
1142 @retval NULL No Startup.nsh file was found.\r
1143 @return !=NULL Pointer to NULL-terminated path.\r
1144**/\r
1145CHAR16 *\r
1146LocateStartupScript (\r
1147 IN EFI_DEVICE_PATH_PROTOCOL *ImageDevicePath,\r
1148 IN EFI_DEVICE_PATH_PROTOCOL *FileDevicePath\r
1149 )\r
1150{\r
1151 CHAR16 *StartupScriptPath;\r
1152 CHAR16 *TempSpot;\r
1153 CONST CHAR16 *MapName;\r
1154 UINTN Size;\r
1155\r
1156 StartupScriptPath = NULL;\r
1157 Size = 0;\r
1158\r
1159 //\r
1160 // Try to find 'Startup.nsh' in the directory where the shell itself was launched.\r
1161 //\r
1162 MapName = ShellInfoObject.NewEfiShellProtocol->GetMapFromDevicePath (&ImageDevicePath);\r
1163 if (MapName != NULL) { \r
1164 StartupScriptPath = StrnCatGrow (&StartupScriptPath, &Size, MapName, 0);\r
1165 if (StartupScriptPath == NULL) {\r
1166 //\r
1167 // Do not locate the startup script in sys path when out of resource.\r
1168 //\r
1169 return NULL;\r
1170 }\r
1171 TempSpot = StrStr (StartupScriptPath, L";");\r
1172 if (TempSpot != NULL) {\r
1173 *TempSpot = CHAR_NULL;\r
1174 }\r
1175\r
1176 StartupScriptPath = StrnCatGrow (&StartupScriptPath, &Size, ((FILEPATH_DEVICE_PATH *)FileDevicePath)->PathName, 0);\r
1177 PathRemoveLastItem (StartupScriptPath);\r
1178 StartupScriptPath = StrnCatGrow (&StartupScriptPath, &Size, mStartupScript, 0);\r
1179 }\r
1180\r
1181 //\r
1182 // Try to find 'Startup.nsh' in the execution path defined by the envrionment variable PATH.\r
1183 //\r
1184 if ((StartupScriptPath == NULL) || EFI_ERROR (ShellIsFile (StartupScriptPath))) {\r
1185 SHELL_FREE_NON_NULL (StartupScriptPath);\r
1186 StartupScriptPath = ShellFindFilePath (mStartupScript);\r
1187 }\r
1188\r
1189 return StartupScriptPath;\r
1190}\r
1191\r
1192/**\r
1193 Handles all interaction with the default startup script.\r
1194\r
1195 this will check that the correct command line parameters were passed, handle the delay, and then start running the script.\r
1196\r
1197 @param ImagePath the path to the image for shell. first place to look for the startup script\r
1198 @param FilePath the path to the file for shell. second place to look for the startup script.\r
1199\r
1200 @retval EFI_SUCCESS the variable is initialized.\r
1201**/\r
1202EFI_STATUS\r
1203DoStartupScript(\r
1204 IN EFI_DEVICE_PATH_PROTOCOL *ImagePath,\r
1205 IN EFI_DEVICE_PATH_PROTOCOL *FilePath\r
1206 )\r
1207{\r
1208 EFI_STATUS Status;\r
1209 EFI_STATUS CalleeStatus;\r
1210 UINTN Delay;\r
1211 EFI_INPUT_KEY Key;\r
1212 CHAR16 *FileStringPath;\r
1213 UINTN NewSize;\r
1214\r
1215 Key.UnicodeChar = CHAR_NULL;\r
1216 Key.ScanCode = 0;\r
1217\r
1218 if (!ShellInfoObject.ShellInitSettings.BitUnion.Bits.Startup && ShellInfoObject.ShellInitSettings.FileName != NULL) {\r
1219 //\r
1220 // launch something else instead\r
1221 //\r
1222 NewSize = StrSize(ShellInfoObject.ShellInitSettings.FileName);\r
1223 if (ShellInfoObject.ShellInitSettings.FileOptions != NULL) {\r
1224 NewSize += StrSize(ShellInfoObject.ShellInitSettings.FileOptions) + sizeof(CHAR16);\r
1225 }\r
1226 FileStringPath = AllocateZeroPool(NewSize);\r
1227 if (FileStringPath == NULL) {\r
1228 return (EFI_OUT_OF_RESOURCES);\r
1229 }\r
1230 StrCpyS(FileStringPath, NewSize/sizeof(CHAR16), ShellInfoObject.ShellInitSettings.FileName);\r
1231 if (ShellInfoObject.ShellInitSettings.FileOptions != NULL) {\r
1232 StrnCatS(FileStringPath, NewSize/sizeof(CHAR16), L" ", NewSize/sizeof(CHAR16) - StrLen(FileStringPath) -1);\r
1233 StrnCatS(FileStringPath, NewSize/sizeof(CHAR16), ShellInfoObject.ShellInitSettings.FileOptions, NewSize/sizeof(CHAR16) - StrLen(FileStringPath) -1);\r
1234 }\r
1235 Status = RunShellCommand(FileStringPath, &CalleeStatus);\r
1236 if (ShellInfoObject.ShellInitSettings.BitUnion.Bits.Exit == TRUE) {\r
1237 ShellCommandRegisterExit(gEfiShellProtocol->BatchIsActive(), (UINT64)CalleeStatus);\r
1238 }\r
1239 FreePool(FileStringPath);\r
1240 return (Status);\r
1241\r
1242 }\r
1243\r
1244 //\r
1245 // for shell level 0 we do no scripts\r
1246 // Without the Startup bit overriding we allow for nostartup to prevent scripts\r
1247 //\r
1248 if ( (PcdGet8(PcdShellSupportLevel) < 1)\r
1249 || (ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoStartup && !ShellInfoObject.ShellInitSettings.BitUnion.Bits.Startup)\r
1250 ){\r
1251 return (EFI_SUCCESS);\r
1252 }\r
1253\r
1254 gST->ConOut->EnableCursor(gST->ConOut, FALSE);\r
1255 //\r
1256 // print out our warning and see if they press a key\r
1257 //\r
1258 for ( Status = EFI_UNSUPPORTED, Delay = ShellInfoObject.ShellInitSettings.Delay\r
1259 ; Delay != 0 && EFI_ERROR(Status)\r
1260 ; Delay--\r
1261 ){\r
1262 ShellPrintHiiEx(0, gST->ConOut->Mode->CursorRow, NULL, STRING_TOKEN (STR_SHELL_STARTUP_QUESTION), ShellInfoObject.HiiHandle, Delay);\r
1263 gBS->Stall (1000000);\r
1264 if (!ShellInfoObject.ShellInitSettings.BitUnion.Bits.NoConsoleIn) {\r
1265 Status = gST->ConIn->ReadKeyStroke (gST->ConIn, &Key);\r
1266 }\r
1267 }\r
1268 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_CRLF), ShellInfoObject.HiiHandle);\r
1269 gST->ConOut->EnableCursor(gST->ConOut, TRUE);\r
1270\r
1271 //\r
1272 // ESC was pressed\r
1273 //\r
1274 if (Status == EFI_SUCCESS && Key.UnicodeChar == 0 && Key.ScanCode == SCAN_ESC) {\r
1275 return (EFI_SUCCESS);\r
1276 }\r
1277\r
1278 FileStringPath = LocateStartupScript (ImagePath, FilePath);\r
1279 if (FileStringPath != NULL) {\r
1280 Status = RunScriptFile (FileStringPath, NULL, L"", ShellInfoObject.NewShellParametersProtocol);\r
1281 FreePool (FileStringPath);\r
1282 }\r
1283\r
1284 return (Status);\r
1285}\r
1286\r
1287/**\r
1288 Function to perform the shell prompt looping. It will do a single prompt,\r
1289 dispatch the result, and then return. It is expected that the caller will\r
1290 call this function in a loop many times.\r
1291\r
1292 @retval EFI_SUCCESS\r
1293 @retval RETURN_ABORTED\r
1294**/\r
1295EFI_STATUS\r
1296DoShellPrompt (\r
1297 VOID\r
1298 )\r
1299{\r
1300 UINTN Column;\r
1301 UINTN Row;\r
1302 CHAR16 *CmdLine;\r
1303 CONST CHAR16 *CurDir;\r
1304 UINTN BufferSize;\r
1305 EFI_STATUS Status;\r
1306 LIST_ENTRY OldBufferList;\r
1307\r
1308 CurDir = NULL;\r
1309\r
1310 //\r
1311 // Get screen setting to decide size of the command line buffer\r
1312 //\r
1313 gST->ConOut->QueryMode (gST->ConOut, gST->ConOut->Mode->Mode, &Column, &Row);\r
1314 BufferSize = Column * Row * sizeof (CHAR16);\r
1315 CmdLine = AllocateZeroPool (BufferSize);\r
1316 if (CmdLine == NULL) {\r
1317 return EFI_OUT_OF_RESOURCES;\r
1318 }\r
1319\r
1320 SaveBufferList(&OldBufferList);\r
1321 CurDir = ShellInfoObject.NewEfiShellProtocol->GetEnv(L"cwd");\r
1322\r
1323 //\r
1324 // Prompt for input\r
1325 //\r
1326 gST->ConOut->SetCursorPosition (gST->ConOut, 0, gST->ConOut->Mode->CursorRow);\r
1327\r
1328 if (CurDir != NULL && StrLen(CurDir) > 1) {\r
1329 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_CURDIR), ShellInfoObject.HiiHandle, CurDir);\r
1330 } else {\r
1331 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_SHELL), ShellInfoObject.HiiHandle);\r
1332 }\r
1333\r
1334 //\r
1335 // Read a line from the console\r
1336 //\r
1337 Status = ShellInfoObject.NewEfiShellProtocol->ReadFile(ShellInfoObject.NewShellParametersProtocol->StdIn, &BufferSize, CmdLine);\r
1338\r
1339 //\r
1340 // Null terminate the string and parse it\r
1341 //\r
1342 if (!EFI_ERROR (Status)) {\r
1343 CmdLine[BufferSize / sizeof (CHAR16)] = CHAR_NULL;\r
1344 Status = RunCommand(CmdLine);\r
1345 }\r
1346\r
1347 //\r
1348 // Done with this command\r
1349 //\r
1350 RestoreBufferList(&OldBufferList);\r
1351 FreePool (CmdLine);\r
1352 return Status;\r
1353}\r
1354\r
1355/**\r
1356 Add a buffer to the Buffer To Free List for safely returning buffers to other\r
1357 places without risking letting them modify internal shell information.\r
1358\r
1359 @param Buffer Something to pass to FreePool when the shell is exiting.\r
1360**/\r
1361VOID*\r
1362AddBufferToFreeList (\r
1363 VOID *Buffer\r
1364 )\r
1365{\r
1366 BUFFER_LIST *BufferListEntry;\r
1367\r
1368 if (Buffer == NULL) {\r
1369 return (NULL);\r
1370 }\r
1371\r
1372 BufferListEntry = AllocateZeroPool (sizeof (BUFFER_LIST));\r
1373 if (BufferListEntry == NULL) {\r
1374 return NULL;\r
1375 }\r
1376\r
1377 BufferListEntry->Buffer = Buffer;\r
1378 InsertTailList (&ShellInfoObject.BufferToFreeList.Link, &BufferListEntry->Link);\r
1379 return (Buffer);\r
1380}\r
1381\r
1382\r
1383/**\r
1384 Create a new buffer list and stores the old one to OldBufferList \r
1385\r
1386 @param OldBufferList The temporary list head used to store the nodes in BufferToFreeList.\r
1387**/\r
1388VOID\r
1389SaveBufferList (\r
1390 OUT LIST_ENTRY *OldBufferList\r
1391 )\r
1392{\r
1393 CopyMem (OldBufferList, &ShellInfoObject.BufferToFreeList.Link, sizeof (LIST_ENTRY));\r
1394 InitializeListHead (&ShellInfoObject.BufferToFreeList.Link);\r
1395}\r
1396\r
1397/**\r
1398 Restore previous nodes into BufferToFreeList .\r
1399\r
1400 @param OldBufferList The temporary list head used to store the nodes in BufferToFreeList.\r
1401**/\r
1402VOID\r
1403RestoreBufferList (\r
1404 IN OUT LIST_ENTRY *OldBufferList\r
1405 )\r
1406{\r
1407 FreeBufferList (&ShellInfoObject.BufferToFreeList);\r
1408 CopyMem (&ShellInfoObject.BufferToFreeList.Link, OldBufferList, sizeof (LIST_ENTRY));\r
1409}\r
1410\r
1411\r
1412/**\r
1413 Add a buffer to the Line History List\r
1414\r
1415 @param Buffer The line buffer to add.\r
1416**/\r
1417VOID\r
1418AddLineToCommandHistory(\r
1419 IN CONST CHAR16 *Buffer\r
1420 )\r
1421{\r
1422 BUFFER_LIST *Node;\r
1423 BUFFER_LIST *Walker;\r
1424 UINT16 MaxHistoryCmdCount;\r
1425 UINT16 Count;\r
1426\r
1427 Count = 0;\r
1428 MaxHistoryCmdCount = PcdGet16(PcdShellMaxHistoryCommandCount);\r
1429 \r
1430 if (MaxHistoryCmdCount == 0) {\r
1431 return ;\r
1432 }\r
1433\r
1434\r
1435 Node = AllocateZeroPool(sizeof(BUFFER_LIST));\r
1436 if (Node == NULL) {\r
1437 return;\r
1438 }\r
1439\r
1440 Node->Buffer = AllocateCopyPool (StrSize (Buffer), Buffer);\r
1441 if (Node->Buffer == NULL) {\r
1442 FreePool (Node);\r
1443 return;\r
1444 }\r
1445\r
1446 for ( Walker = (BUFFER_LIST*)GetFirstNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link)\r
1447 ; !IsNull(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &Walker->Link)\r
1448 ; Walker = (BUFFER_LIST*)GetNextNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &Walker->Link)\r
1449 ){\r
1450 Count++;\r
1451 }\r
1452 if (Count < MaxHistoryCmdCount){\r
1453 InsertTailList(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &Node->Link);\r
1454 } else {\r
1455 Walker = (BUFFER_LIST*)GetFirstNode(&ShellInfoObject.ViewingSettings.CommandHistory.Link);\r
1456 RemoveEntryList(&Walker->Link);\r
1457 if (Walker->Buffer != NULL) {\r
1458 FreePool(Walker->Buffer);\r
1459 }\r
1460 FreePool(Walker);\r
1461 InsertTailList(&ShellInfoObject.ViewingSettings.CommandHistory.Link, &Node->Link);\r
1462 }\r
1463}\r
1464\r
1465/**\r
1466 Checks if a string is an alias for another command. If yes, then it replaces the alias name\r
1467 with the correct command name.\r
1468\r
1469 @param[in, out] CommandString Upon entry the potential alias. Upon return the\r
1470 command name if it was an alias. If it was not\r
1471 an alias it will be unchanged. This function may\r
1472 change the buffer to fit the command name.\r
1473\r
1474 @retval EFI_SUCCESS The name was changed.\r
1475 @retval EFI_SUCCESS The name was not an alias.\r
1476 @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r
1477**/\r
1478EFI_STATUS\r
1479ShellConvertAlias(\r
1480 IN OUT CHAR16 **CommandString\r
1481 )\r
1482{\r
1483 CONST CHAR16 *NewString;\r
1484\r
1485 NewString = ShellInfoObject.NewEfiShellProtocol->GetAlias(*CommandString, NULL);\r
1486 if (NewString == NULL) {\r
1487 return (EFI_SUCCESS);\r
1488 }\r
1489 FreePool(*CommandString);\r
1490 *CommandString = AllocateCopyPool(StrSize(NewString), NewString);\r
1491 if (*CommandString == NULL) {\r
1492 return (EFI_OUT_OF_RESOURCES);\r
1493 }\r
1494 return (EFI_SUCCESS);\r
1495}\r
1496\r
1497/**\r
1498 This function will eliminate unreplaced (and therefore non-found) environment variables.\r
1499\r
1500 @param[in,out] CmdLine The command line to update.\r
1501**/\r
1502EFI_STATUS\r
1503StripUnreplacedEnvironmentVariables(\r
1504 IN OUT CHAR16 *CmdLine\r
1505 )\r
1506{\r
1507 CHAR16 *FirstPercent;\r
1508 CHAR16 *FirstQuote;\r
1509 CHAR16 *SecondPercent;\r
1510 CHAR16 *SecondQuote;\r
1511 CHAR16 *CurrentLocator;\r
1512\r
1513 for (CurrentLocator = CmdLine ; CurrentLocator != NULL ; ) {\r
1514 FirstQuote = FindNextInstance(CurrentLocator, L"\"", TRUE);\r
1515 FirstPercent = FindNextInstance(CurrentLocator, L"%", TRUE);\r
1516 SecondPercent = FirstPercent!=NULL?FindNextInstance(FirstPercent+1, L"%", TRUE):NULL;\r
1517 if (FirstPercent == NULL || SecondPercent == NULL) {\r
1518 //\r
1519 // If we ever don't have 2 % we are done.\r
1520 //\r
1521 break;\r
1522 }\r
1523\r
1524 if (FirstQuote!= NULL && FirstQuote < FirstPercent) {\r
1525 SecondQuote = FindNextInstance(FirstQuote+1, L"\"", TRUE);\r
1526 //\r
1527 // Quote is first found\r
1528 //\r
1529\r
1530 if (SecondQuote < FirstPercent) {\r
1531 //\r
1532 // restart after the pair of "\r
1533 //\r
1534 CurrentLocator = SecondQuote + 1;\r
1535 } else /* FirstPercent < SecondQuote */{\r
1536 //\r
1537 // Restart on the first percent\r
1538 //\r
1539 CurrentLocator = FirstPercent;\r
1540 }\r
1541 continue;\r
1542 }\r
1543 \r
1544 if (FirstQuote == NULL || SecondPercent < FirstQuote) {\r
1545 if (IsValidEnvironmentVariableName(FirstPercent, SecondPercent)) {\r
1546 //\r
1547 // We need to remove from FirstPercent to SecondPercent\r
1548 //\r
1549 CopyMem(FirstPercent, SecondPercent + 1, StrSize(SecondPercent + 1));\r
1550 //\r
1551 // don't need to update the locator. both % characters are gone.\r
1552 //\r
1553 } else {\r
1554 CurrentLocator = SecondPercent + 1;\r
1555 }\r
1556 continue;\r
1557 }\r
1558 CurrentLocator = FirstQuote;\r
1559 }\r
1560 return (EFI_SUCCESS);\r
1561}\r
1562\r
1563/**\r
1564 Function allocates a new command line and replaces all instances of environment\r
1565 variable names that are correctly preset to their values.\r
1566\r
1567 If the return value is not NULL the memory must be caller freed.\r
1568\r
1569 @param[in] OriginalCommandLine The original command line\r
1570\r
1571 @retval NULL An error occurred.\r
1572 @return The new command line with no environment variables present.\r
1573**/\r
1574CHAR16*\r
1575ShellConvertVariables (\r
1576 IN CONST CHAR16 *OriginalCommandLine\r
1577 )\r
1578{\r
1579 CONST CHAR16 *MasterEnvList;\r
1580 UINTN NewSize;\r
1581 CHAR16 *NewCommandLine1;\r
1582 CHAR16 *NewCommandLine2;\r
1583 CHAR16 *Temp;\r
1584 UINTN ItemSize;\r
1585 CHAR16 *ItemTemp;\r
1586 SCRIPT_FILE *CurrentScriptFile;\r
1587 ALIAS_LIST *AliasListNode;\r
1588\r
1589 ASSERT(OriginalCommandLine != NULL);\r
1590\r
1591 ItemSize = 0;\r
1592 NewSize = StrSize(OriginalCommandLine);\r
1593 CurrentScriptFile = ShellCommandGetCurrentScriptFile();\r
1594 Temp = NULL;\r
1595\r
1596 ///@todo update this to handle the %0 - %9 for scripting only (borrow from line 1256 area) ? ? ?\r
1597\r
1598 //\r
1599 // calculate the size required for the post-conversion string...\r
1600 //\r
1601 if (CurrentScriptFile != NULL) {\r
1602 for (AliasListNode = (ALIAS_LIST*)GetFirstNode(&CurrentScriptFile->SubstList)\r
1603 ; !IsNull(&CurrentScriptFile->SubstList, &AliasListNode->Link)\r
1604 ; AliasListNode = (ALIAS_LIST*)GetNextNode(&CurrentScriptFile->SubstList, &AliasListNode->Link)\r
1605 ){\r
1606 for (Temp = StrStr(OriginalCommandLine, AliasListNode->Alias)\r
1607 ; Temp != NULL\r
1608 ; Temp = StrStr(Temp+1, AliasListNode->Alias)\r
1609 ){\r
1610 //\r
1611 // we need a preceding and if there is space no ^ preceding (if no space ignore)\r
1612 //\r
1613 if ((((Temp-OriginalCommandLine)>2) && *(Temp-2) != L'^') || ((Temp-OriginalCommandLine)<=2)) {\r
1614 NewSize += StrSize(AliasListNode->CommandString);\r
1615 }\r
1616 }\r
1617 }\r
1618 }\r
1619\r
1620 for (MasterEnvList = EfiShellGetEnv(NULL)\r
1621 ; MasterEnvList != NULL && *MasterEnvList != CHAR_NULL //&& *(MasterEnvList+1) != CHAR_NULL\r
1622 ; MasterEnvList += StrLen(MasterEnvList) + 1\r
1623 ){\r
1624 if (StrSize(MasterEnvList) > ItemSize) {\r
1625 ItemSize = StrSize(MasterEnvList);\r
1626 }\r
1627 for (Temp = StrStr(OriginalCommandLine, MasterEnvList)\r
1628 ; Temp != NULL\r
1629 ; Temp = StrStr(Temp+1, MasterEnvList)\r
1630 ){\r
1631 //\r
1632 // we need a preceding and following % and if there is space no ^ preceding (if no space ignore)\r
1633 //\r
1634 if (*(Temp-1) == L'%' && *(Temp+StrLen(MasterEnvList)) == L'%' &&\r
1635 ((((Temp-OriginalCommandLine)>2) && *(Temp-2) != L'^') || ((Temp-OriginalCommandLine)<=2))) {\r
1636 NewSize+=StrSize(EfiShellGetEnv(MasterEnvList));\r
1637 }\r
1638 }\r
1639 }\r
1640\r
1641 //\r
1642 // now do the replacements...\r
1643 //\r
1644 NewCommandLine1 = AllocateCopyPool(NewSize, OriginalCommandLine);\r
1645 NewCommandLine2 = AllocateZeroPool(NewSize);\r
1646 ItemTemp = AllocateZeroPool(ItemSize+(2*sizeof(CHAR16)));\r
1647 if (NewCommandLine1 == NULL || NewCommandLine2 == NULL || ItemTemp == NULL) {\r
1648 SHELL_FREE_NON_NULL(NewCommandLine1);\r
1649 SHELL_FREE_NON_NULL(NewCommandLine2);\r
1650 SHELL_FREE_NON_NULL(ItemTemp);\r
1651 return (NULL);\r
1652 }\r
1653 for (MasterEnvList = EfiShellGetEnv(NULL)\r
1654 ; MasterEnvList != NULL && *MasterEnvList != CHAR_NULL\r
1655 ; MasterEnvList += StrLen(MasterEnvList) + 1\r
1656 ){\r
1657 StrCpyS( ItemTemp, \r
1658 ((ItemSize+(2*sizeof(CHAR16)))/sizeof(CHAR16)), \r
1659 L"%"\r
1660 );\r
1661 StrCatS( ItemTemp, \r
1662 ((ItemSize+(2*sizeof(CHAR16)))/sizeof(CHAR16)), \r
1663 MasterEnvList\r
1664 );\r
1665 StrCatS( ItemTemp, \r
1666 ((ItemSize+(2*sizeof(CHAR16)))/sizeof(CHAR16)), \r
1667 L"%"\r
1668 );\r
1669 ShellCopySearchAndReplace(NewCommandLine1, NewCommandLine2, NewSize, ItemTemp, EfiShellGetEnv(MasterEnvList), TRUE, FALSE);\r
1670 StrCpyS(NewCommandLine1, NewSize/sizeof(CHAR16), NewCommandLine2);\r
1671 }\r
1672 if (CurrentScriptFile != NULL) {\r
1673 for (AliasListNode = (ALIAS_LIST*)GetFirstNode(&CurrentScriptFile->SubstList)\r
1674 ; !IsNull(&CurrentScriptFile->SubstList, &AliasListNode->Link)\r
1675 ; AliasListNode = (ALIAS_LIST*)GetNextNode(&CurrentScriptFile->SubstList, &AliasListNode->Link)\r
1676 ){\r
1677 ShellCopySearchAndReplace(NewCommandLine1, NewCommandLine2, NewSize, AliasListNode->Alias, AliasListNode->CommandString, TRUE, FALSE);\r
1678 StrCpyS(NewCommandLine1, NewSize/sizeof(CHAR16), NewCommandLine2);\r
1679 }\r
1680 }\r
1681\r
1682 //\r
1683 // Remove non-existent environment variables\r
1684 //\r
1685 StripUnreplacedEnvironmentVariables(NewCommandLine1);\r
1686\r
1687 //\r
1688 // Now cleanup any straggler intentionally ignored "%" characters\r
1689 //\r
1690 ShellCopySearchAndReplace(NewCommandLine1, NewCommandLine2, NewSize, L"^%", L"%", TRUE, FALSE);\r
1691 StrCpyS(NewCommandLine1, NewSize/sizeof(CHAR16), NewCommandLine2);\r
1692 \r
1693 FreePool(NewCommandLine2);\r
1694 FreePool(ItemTemp);\r
1695\r
1696 return (NewCommandLine1);\r
1697}\r
1698\r
1699/**\r
1700 Internal function to run a command line with pipe usage.\r
1701\r
1702 @param[in] CmdLine The pointer to the command line.\r
1703 @param[in] StdIn The pointer to the Standard input.\r
1704 @param[in] StdOut The pointer to the Standard output.\r
1705\r
1706 @retval EFI_SUCCESS The split command is executed successfully.\r
1707 @retval other Some error occurs when executing the split command.\r
1708**/\r
1709EFI_STATUS\r
1710RunSplitCommand(\r
1711 IN CONST CHAR16 *CmdLine,\r
1712 IN SHELL_FILE_HANDLE *StdIn,\r
1713 IN SHELL_FILE_HANDLE *StdOut\r
1714 )\r
1715{\r
1716 EFI_STATUS Status;\r
1717 CHAR16 *NextCommandLine;\r
1718 CHAR16 *OurCommandLine;\r
1719 UINTN Size1;\r
1720 UINTN Size2;\r
1721 SPLIT_LIST *Split;\r
1722 SHELL_FILE_HANDLE *TempFileHandle;\r
1723 BOOLEAN Unicode;\r
1724\r
1725 ASSERT(StdOut == NULL);\r
1726\r
1727 ASSERT(StrStr(CmdLine, L"|") != NULL);\r
1728\r
1729 Status = EFI_SUCCESS;\r
1730 NextCommandLine = NULL;\r
1731 OurCommandLine = NULL;\r
1732 Size1 = 0;\r
1733 Size2 = 0;\r
1734\r
1735 NextCommandLine = StrnCatGrow(&NextCommandLine, &Size1, StrStr(CmdLine, L"|")+1, 0);\r
1736 OurCommandLine = StrnCatGrow(&OurCommandLine , &Size2, CmdLine , StrStr(CmdLine, L"|") - CmdLine);\r
1737\r
1738 if (NextCommandLine == NULL || OurCommandLine == NULL) {\r
1739 SHELL_FREE_NON_NULL(OurCommandLine);\r
1740 SHELL_FREE_NON_NULL(NextCommandLine);\r
1741 return (EFI_OUT_OF_RESOURCES);\r
1742 } else if (StrStr(OurCommandLine, L"|") != NULL || Size1 == 0 || Size2 == 0) {\r
1743 SHELL_FREE_NON_NULL(OurCommandLine);\r
1744 SHELL_FREE_NON_NULL(NextCommandLine);\r
1745 return (EFI_INVALID_PARAMETER);\r
1746 } else if (NextCommandLine[0] == L'a' &&\r
1747 (NextCommandLine[1] == L' ' || NextCommandLine[1] == CHAR_NULL)\r
1748 ){\r
1749 CopyMem(NextCommandLine, NextCommandLine+1, StrSize(NextCommandLine) - sizeof(NextCommandLine[0]));\r
1750 while (NextCommandLine[0] == L' ') {\r
1751 CopyMem(NextCommandLine, NextCommandLine+1, StrSize(NextCommandLine) - sizeof(NextCommandLine[0]));\r
1752 }\r
1753 if (NextCommandLine[0] == CHAR_NULL) {\r
1754 SHELL_FREE_NON_NULL(OurCommandLine);\r
1755 SHELL_FREE_NON_NULL(NextCommandLine);\r
1756 return (EFI_INVALID_PARAMETER);\r
1757 }\r
1758 Unicode = FALSE;\r
1759 } else {\r
1760 Unicode = TRUE;\r
1761 }\r
1762\r
1763\r
1764 //\r
1765 // make a SPLIT_LIST item and add to list\r
1766 //\r
1767 Split = AllocateZeroPool(sizeof(SPLIT_LIST));\r
1768 if (Split == NULL) {\r
1769 return EFI_OUT_OF_RESOURCES;\r
1770 }\r
1771 Split->SplitStdIn = StdIn;\r
1772 Split->SplitStdOut = ConvertEfiFileProtocolToShellHandle(CreateFileInterfaceMem(Unicode), NULL);\r
1773 ASSERT(Split->SplitStdOut != NULL);\r
1774 InsertHeadList(&ShellInfoObject.SplitList.Link, &Split->Link);\r
1775\r
1776 Status = RunCommand(OurCommandLine);\r
1777\r
1778 //\r
1779 // move the output from the first to the in to the second.\r
1780 //\r
1781 TempFileHandle = Split->SplitStdOut;\r
1782 if (Split->SplitStdIn == StdIn) {\r
1783 Split->SplitStdOut = NULL;\r
1784 } else {\r
1785 Split->SplitStdOut = Split->SplitStdIn;\r
1786 }\r
1787 Split->SplitStdIn = TempFileHandle;\r
1788 ShellInfoObject.NewEfiShellProtocol->SetFilePosition(ConvertShellHandleToEfiFileProtocol(Split->SplitStdIn), 0);\r
1789\r
1790 if (!EFI_ERROR(Status)) {\r
1791 Status = RunCommand(NextCommandLine);\r
1792 }\r
1793\r
1794 //\r
1795 // remove the top level from the ScriptList\r
1796 //\r
1797 ASSERT((SPLIT_LIST*)GetFirstNode(&ShellInfoObject.SplitList.Link) == Split);\r
1798 RemoveEntryList(&Split->Link);\r
1799\r
1800 //\r
1801 // Note that the original StdIn is now the StdOut...\r
1802 //\r
1803 if (Split->SplitStdOut != NULL) {\r
1804 ShellInfoObject.NewEfiShellProtocol->CloseFile(ConvertShellHandleToEfiFileProtocol(Split->SplitStdOut));\r
1805 }\r
1806 if (Split->SplitStdIn != NULL) {\r
1807 ShellInfoObject.NewEfiShellProtocol->CloseFile(ConvertShellHandleToEfiFileProtocol(Split->SplitStdIn));\r
1808 FreePool (Split->SplitStdIn);\r
1809 }\r
1810\r
1811 FreePool(Split);\r
1812 FreePool(NextCommandLine);\r
1813 FreePool(OurCommandLine);\r
1814\r
1815 return (Status);\r
1816}\r
1817\r
1818/**\r
1819 Take the original command line, substitute any variables, free \r
1820 the original string, return the modified copy.\r
1821\r
1822 @param[in] CmdLine pointer to the command line to update.\r
1823\r
1824 @retval EFI_SUCCESS the function was successful.\r
1825 @retval EFI_OUT_OF_RESOURCES a memory allocation failed.\r
1826**/\r
1827EFI_STATUS\r
1828ShellSubstituteVariables(\r
1829 IN CHAR16 **CmdLine\r
1830 )\r
1831{\r
1832 CHAR16 *NewCmdLine;\r
1833 NewCmdLine = ShellConvertVariables(*CmdLine);\r
1834 SHELL_FREE_NON_NULL(*CmdLine);\r
1835 if (NewCmdLine == NULL) {\r
1836 return (EFI_OUT_OF_RESOURCES);\r
1837 }\r
1838 *CmdLine = NewCmdLine;\r
1839 return (EFI_SUCCESS);\r
1840}\r
1841\r
1842/**\r
1843 Take the original command line, substitute any alias in the first group of space delimited characters, free \r
1844 the original string, return the modified copy.\r
1845\r
1846 @param[in] CmdLine pointer to the command line to update.\r
1847\r
1848 @retval EFI_SUCCESS the function was successful.\r
1849 @retval EFI_OUT_OF_RESOURCES a memory allocation failed.\r
1850**/\r
1851EFI_STATUS\r
1852ShellSubstituteAliases(\r
1853 IN CHAR16 **CmdLine\r
1854 )\r
1855{\r
1856 CHAR16 *NewCmdLine;\r
1857 CHAR16 *CommandName;\r
1858 EFI_STATUS Status;\r
1859 UINTN PostAliasSize;\r
1860 ASSERT(CmdLine != NULL);\r
1861 ASSERT(*CmdLine!= NULL);\r
1862\r
1863\r
1864 CommandName = NULL;\r
1865 if (StrStr((*CmdLine), L" ") == NULL){\r
1866 StrnCatGrow(&CommandName, NULL, (*CmdLine), 0);\r
1867 } else {\r
1868 StrnCatGrow(&CommandName, NULL, (*CmdLine), StrStr((*CmdLine), L" ") - (*CmdLine));\r
1869 }\r
1870\r
1871 //\r
1872 // This cannot happen 'inline' since the CmdLine can need extra space.\r
1873 //\r
1874 NewCmdLine = NULL;\r
1875 if (!ShellCommandIsCommandOnList(CommandName)) {\r
1876 //\r
1877 // Convert via alias\r
1878 //\r
1879 Status = ShellConvertAlias(&CommandName);\r
1880 if (EFI_ERROR(Status)){\r
1881 return (Status);\r
1882 }\r
1883 PostAliasSize = 0;\r
1884 NewCmdLine = StrnCatGrow(&NewCmdLine, &PostAliasSize, CommandName, 0);\r
1885 if (NewCmdLine == NULL) {\r
1886 SHELL_FREE_NON_NULL(CommandName);\r
1887 SHELL_FREE_NON_NULL(*CmdLine);\r
1888 return (EFI_OUT_OF_RESOURCES);\r
1889 }\r
1890 NewCmdLine = StrnCatGrow(&NewCmdLine, &PostAliasSize, StrStr((*CmdLine), L" "), 0);\r
1891 if (NewCmdLine == NULL) {\r
1892 SHELL_FREE_NON_NULL(CommandName);\r
1893 SHELL_FREE_NON_NULL(*CmdLine);\r
1894 return (EFI_OUT_OF_RESOURCES);\r
1895 }\r
1896 } else {\r
1897 NewCmdLine = StrnCatGrow(&NewCmdLine, NULL, (*CmdLine), 0);\r
1898 }\r
1899\r
1900 SHELL_FREE_NON_NULL(*CmdLine);\r
1901 SHELL_FREE_NON_NULL(CommandName);\r
1902 \r
1903 //\r
1904 // re-assign the passed in double pointer to point to our newly allocated buffer\r
1905 //\r
1906 *CmdLine = NewCmdLine;\r
1907\r
1908 return (EFI_SUCCESS);\r
1909}\r
1910\r
1911/**\r
1912 Takes the Argv[0] part of the command line and determine the meaning of it.\r
1913\r
1914 @param[in] CmdName pointer to the command line to update.\r
1915 \r
1916 @retval Internal_Command The name is an internal command.\r
1917 @retval File_Sys_Change the name is a file system change.\r
1918 @retval Script_File_Name the name is a NSH script file.\r
1919 @retval Unknown_Invalid the name is unknown.\r
1920 @retval Efi_Application the name is an application (.EFI).\r
1921**/\r
1922SHELL_OPERATION_TYPES\r
1923GetOperationType(\r
1924 IN CONST CHAR16 *CmdName\r
1925 )\r
1926{\r
1927 CHAR16* FileWithPath;\r
1928 CONST CHAR16* TempLocation;\r
1929 CONST CHAR16* TempLocation2;\r
1930\r
1931 FileWithPath = NULL;\r
1932 //\r
1933 // test for an internal command.\r
1934 //\r
1935 if (ShellCommandIsCommandOnList(CmdName)) {\r
1936 return (Internal_Command);\r
1937 }\r
1938\r
1939 //\r
1940 // Test for file system change request. anything ending with first : and cant have spaces.\r
1941 //\r
1942 if (CmdName[(StrLen(CmdName)-1)] == L':') {\r
1943 if ( StrStr(CmdName, L" ") != NULL \r
1944 || StrLen(StrStr(CmdName, L":")) > 1\r
1945 ) {\r
1946 return (Unknown_Invalid);\r
1947 }\r
1948 return (File_Sys_Change);\r
1949 }\r
1950\r
1951 //\r
1952 // Test for a file\r
1953 //\r
1954 if ((FileWithPath = ShellFindFilePathEx(CmdName, mExecutableExtensions)) != NULL) {\r
1955 //\r
1956 // See if that file has a script file extension\r
1957 //\r
1958 if (StrLen(FileWithPath) > 4) {\r
1959 TempLocation = FileWithPath+StrLen(FileWithPath)-4;\r
1960 TempLocation2 = mScriptExtension;\r
1961 if (StringNoCaseCompare((VOID*)(&TempLocation), (VOID*)(&TempLocation2)) == 0) {\r
1962 SHELL_FREE_NON_NULL(FileWithPath);\r
1963 return (Script_File_Name);\r
1964 }\r
1965 }\r
1966\r
1967 //\r
1968 // Was a file, but not a script. we treat this as an application.\r
1969 //\r
1970 SHELL_FREE_NON_NULL(FileWithPath);\r
1971 return (Efi_Application);\r
1972 }\r
1973 \r
1974 SHELL_FREE_NON_NULL(FileWithPath);\r
1975 //\r
1976 // No clue what this is... return invalid flag...\r
1977 //\r
1978 return (Unknown_Invalid);\r
1979}\r
1980\r
1981/**\r
1982 Determine if the first item in a command line is valid.\r
1983\r
1984 @param[in] CmdLine The command line to parse.\r
1985\r
1986 @retval EFI_SUCCESS The item is valid.\r
1987 @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r
1988 @retval EFI_NOT_FOUND The operation type is unknown or invalid.\r
1989**/\r
1990EFI_STATUS \r
1991IsValidSplit(\r
1992 IN CONST CHAR16 *CmdLine\r
1993 )\r
1994{\r
1995 CHAR16 *Temp;\r
1996 CHAR16 *FirstParameter;\r
1997 CHAR16 *TempWalker;\r
1998 EFI_STATUS Status;\r
1999\r
2000 Temp = NULL;\r
2001\r
2002 Temp = StrnCatGrow(&Temp, NULL, CmdLine, 0);\r
2003 if (Temp == NULL) {\r
2004 return (EFI_OUT_OF_RESOURCES);\r
2005 }\r
2006\r
2007 FirstParameter = StrStr(Temp, L"|");\r
2008 if (FirstParameter != NULL) {\r
2009 *FirstParameter = CHAR_NULL;\r
2010 }\r
2011\r
2012 FirstParameter = NULL;\r
2013\r
2014 //\r
2015 // Process the command line\r
2016 //\r
2017 Status = ProcessCommandLineToFinal(&Temp);\r
2018\r
2019 if (!EFI_ERROR(Status)) {\r
2020 FirstParameter = AllocateZeroPool(StrSize(CmdLine));\r
2021 if (FirstParameter == NULL) {\r
2022 SHELL_FREE_NON_NULL(Temp);\r
2023 return (EFI_OUT_OF_RESOURCES);\r
2024 }\r
2025 TempWalker = (CHAR16*)Temp;\r
2026 if (!EFI_ERROR(GetNextParameter(&TempWalker, &FirstParameter, StrSize(CmdLine), TRUE))) {\r
2027 if (GetOperationType(FirstParameter) == Unknown_Invalid) {\r
2028 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_NOT_FOUND), ShellInfoObject.HiiHandle, FirstParameter);\r
2029 SetLastError(SHELL_NOT_FOUND);\r
2030 Status = EFI_NOT_FOUND;\r
2031 }\r
2032 }\r
2033 }\r
2034\r
2035 SHELL_FREE_NON_NULL(Temp);\r
2036 SHELL_FREE_NON_NULL(FirstParameter);\r
2037 return Status;\r
2038}\r
2039\r
2040/**\r
2041 Determine if a command line contains with a split contains only valid commands.\r
2042\r
2043 @param[in] CmdLine The command line to parse.\r
2044\r
2045 @retval EFI_SUCCESS CmdLine has only valid commands, application, or has no split.\r
2046 @retval EFI_ABORTED CmdLine has at least one invalid command or application.\r
2047**/\r
2048EFI_STATUS\r
2049VerifySplit(\r
2050 IN CONST CHAR16 *CmdLine\r
2051 )\r
2052{\r
2053 CONST CHAR16 *TempSpot;\r
2054 EFI_STATUS Status;\r
2055\r
2056 //\r
2057 // If this was the only item, then get out\r
2058 //\r
2059 if (!ContainsSplit(CmdLine)) {\r
2060 return (EFI_SUCCESS);\r
2061 }\r
2062\r
2063 //\r
2064 // Verify up to the pipe or end character\r
2065 //\r
2066 Status = IsValidSplit(CmdLine);\r
2067 if (EFI_ERROR(Status)) {\r
2068 return (Status);\r
2069 }\r
2070\r
2071 //\r
2072 // recurse to verify the next item\r
2073 //\r
2074 TempSpot = FindFirstCharacter(CmdLine, L"|", L'^') + 1;\r
2075 if (*TempSpot == L'a' && \r
2076 (*(TempSpot + 1) == L' ' || *(TempSpot + 1) == CHAR_NULL)\r
2077 ) {\r
2078 // If it's an ASCII pipe '|a'\r
2079 TempSpot += 1;\r
2080 }\r
2081 \r
2082 return (VerifySplit(TempSpot));\r
2083}\r
2084\r
2085/**\r
2086 Process a split based operation.\r
2087\r
2088 @param[in] CmdLine pointer to the command line to process\r
2089\r
2090 @retval EFI_SUCCESS The operation was successful\r
2091 @return an error occurred.\r
2092**/\r
2093EFI_STATUS\r
2094ProcessNewSplitCommandLine(\r
2095 IN CONST CHAR16 *CmdLine\r
2096 )\r
2097{\r
2098 SPLIT_LIST *Split;\r
2099 EFI_STATUS Status;\r
2100\r
2101 Status = VerifySplit(CmdLine);\r
2102 if (EFI_ERROR(Status)) {\r
2103 return (Status);\r
2104 }\r
2105\r
2106 Split = NULL;\r
2107\r
2108 //\r
2109 // are we in an existing split???\r
2110 //\r
2111 if (!IsListEmpty(&ShellInfoObject.SplitList.Link)) {\r
2112 Split = (SPLIT_LIST*)GetFirstNode(&ShellInfoObject.SplitList.Link);\r
2113 }\r
2114\r
2115 if (Split == NULL) {\r
2116 Status = RunSplitCommand(CmdLine, NULL, NULL);\r
2117 } else {\r
2118 Status = RunSplitCommand(CmdLine, Split->SplitStdIn, Split->SplitStdOut);\r
2119 }\r
2120 if (EFI_ERROR(Status)) {\r
2121 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_INVALID_SPLIT), ShellInfoObject.HiiHandle, CmdLine);\r
2122 }\r
2123 return (Status);\r
2124}\r
2125\r
2126/**\r
2127 Handle a request to change the current file system.\r
2128\r
2129 @param[in] CmdLine The passed in command line.\r
2130\r
2131 @retval EFI_SUCCESS The operation was successful.\r
2132**/\r
2133EFI_STATUS\r
2134ChangeMappedDrive(\r
2135 IN CONST CHAR16 *CmdLine\r
2136 )\r
2137{\r
2138 EFI_STATUS Status;\r
2139 Status = EFI_SUCCESS;\r
2140\r
2141 //\r
2142 // make sure we are the right operation\r
2143 //\r
2144 ASSERT(CmdLine[(StrLen(CmdLine)-1)] == L':' && StrStr(CmdLine, L" ") == NULL);\r
2145 \r
2146 //\r
2147 // Call the protocol API to do the work\r
2148 //\r
2149 Status = ShellInfoObject.NewEfiShellProtocol->SetCurDir(NULL, CmdLine);\r
2150\r
2151 //\r
2152 // Report any errors\r
2153 //\r
2154 if (EFI_ERROR(Status)) {\r
2155 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_INVALID_MAPPING), ShellInfoObject.HiiHandle, CmdLine);\r
2156 }\r
2157\r
2158 return (Status);\r
2159}\r
2160\r
2161/**\r
2162 Reprocess the command line to direct all -? to the help command.\r
2163\r
2164 if found, will add "help" as argv[0], and move the rest later.\r
2165\r
2166 @param[in,out] CmdLine pointer to the command line to update\r
2167**/\r
2168EFI_STATUS\r
2169DoHelpUpdate(\r
2170 IN OUT CHAR16 **CmdLine\r
2171 )\r
2172{\r
2173 CHAR16 *CurrentParameter;\r
2174 CHAR16 *Walker;\r
2175 CHAR16 *NewCommandLine;\r
2176 EFI_STATUS Status;\r
2177 UINTN NewCmdLineSize;\r
2178\r
2179 Status = EFI_SUCCESS;\r
2180\r
2181 CurrentParameter = AllocateZeroPool(StrSize(*CmdLine));\r
2182 if (CurrentParameter == NULL) {\r
2183 return (EFI_OUT_OF_RESOURCES);\r
2184 }\r
2185\r
2186 Walker = *CmdLine;\r
2187 while(Walker != NULL && *Walker != CHAR_NULL) {\r
2188 if (!EFI_ERROR(GetNextParameter(&Walker, &CurrentParameter, StrSize(*CmdLine), TRUE))) {\r
2189 if (StrStr(CurrentParameter, L"-?") == CurrentParameter) {\r
2190 CurrentParameter[0] = L' ';\r
2191 CurrentParameter[1] = L' ';\r
2192 NewCmdLineSize = StrSize(L"help ") + StrSize(*CmdLine);\r
2193 NewCommandLine = AllocateZeroPool(NewCmdLineSize);\r
2194 if (NewCommandLine == NULL) {\r
2195 Status = EFI_OUT_OF_RESOURCES;\r
2196 break;\r
2197 }\r
2198\r
2199 //\r
2200 // We know the space is sufficient since we just calculated it.\r
2201 //\r
2202 StrnCpyS(NewCommandLine, NewCmdLineSize/sizeof(CHAR16), L"help ", 5);\r
2203 StrnCatS(NewCommandLine, NewCmdLineSize/sizeof(CHAR16), *CmdLine, StrLen(*CmdLine));\r
2204 SHELL_FREE_NON_NULL(*CmdLine);\r
2205 *CmdLine = NewCommandLine;\r
2206 break;\r
2207 }\r
2208 }\r
2209 }\r
2210\r
2211 SHELL_FREE_NON_NULL(CurrentParameter);\r
2212\r
2213 return (Status);\r
2214}\r
2215\r
2216/**\r
2217 Function to update the shell variable "lasterror".\r
2218\r
2219 @param[in] ErrorCode the error code to put into lasterror.\r
2220**/\r
2221EFI_STATUS\r
2222SetLastError(\r
2223 IN CONST SHELL_STATUS ErrorCode\r
2224 )\r
2225{\r
2226 CHAR16 LeString[19];\r
2227 if (sizeof(EFI_STATUS) == sizeof(UINT64)) {\r
2228 UnicodeSPrint(LeString, sizeof(LeString), L"0x%Lx", ErrorCode);\r
2229 } else {\r
2230 UnicodeSPrint(LeString, sizeof(LeString), L"0x%x", ErrorCode);\r
2231 }\r
2232 DEBUG_CODE(InternalEfiShellSetEnv(L"debuglasterror", LeString, TRUE););\r
2233 InternalEfiShellSetEnv(L"lasterror", LeString, TRUE);\r
2234\r
2235 return (EFI_SUCCESS);\r
2236}\r
2237\r
2238/**\r
2239 Converts the command line to it's post-processed form. this replaces variables and alias' per UEFI Shell spec.\r
2240\r
2241 @param[in,out] CmdLine pointer to the command line to update\r
2242\r
2243 @retval EFI_SUCCESS The operation was successful\r
2244 @retval EFI_OUT_OF_RESOURCES A memory allocation failed.\r
2245 @return some other error occurred\r
2246**/\r
2247EFI_STATUS\r
2248ProcessCommandLineToFinal(\r
2249 IN OUT CHAR16 **CmdLine\r
2250 )\r
2251{\r
2252 EFI_STATUS Status;\r
2253 TrimSpaces(CmdLine);\r
2254\r
2255 Status = ShellSubstituteAliases(CmdLine);\r
2256 if (EFI_ERROR(Status)) {\r
2257 return (Status);\r
2258 }\r
2259\r
2260 TrimSpaces(CmdLine);\r
2261\r
2262 Status = ShellSubstituteVariables(CmdLine);\r
2263 if (EFI_ERROR(Status)) {\r
2264 return (Status);\r
2265 }\r
2266 ASSERT (*CmdLine != NULL);\r
2267\r
2268 TrimSpaces(CmdLine);\r
2269\r
2270 //\r
2271 // update for help parsing\r
2272 //\r
2273 if (StrStr(*CmdLine, L"?") != NULL) {\r
2274 //\r
2275 // This may do nothing if the ? does not indicate help.\r
2276 // Save all the details for in the API below.\r
2277 //\r
2278 Status = DoHelpUpdate(CmdLine);\r
2279 }\r
2280\r
2281 TrimSpaces(CmdLine);\r
2282\r
2283 return (EFI_SUCCESS);\r
2284}\r
2285\r
2286/**\r
2287 Run an internal shell command.\r
2288\r
2289 This API will update the shell's environment since these commands are libraries.\r
2290 \r
2291 @param[in] CmdLine the command line to run.\r
2292 @param[in] FirstParameter the first parameter on the command line\r
2293 @param[in] ParamProtocol the shell parameters protocol pointer\r
2294 @param[out] CommandStatus the status from the command line.\r
2295\r
2296 @retval EFI_SUCCESS The command was completed.\r
2297 @retval EFI_ABORTED The command's operation was aborted.\r
2298**/\r
2299EFI_STATUS\r
2300RunInternalCommand(\r
2301 IN CONST CHAR16 *CmdLine,\r
2302 IN CHAR16 *FirstParameter,\r
2303 IN EFI_SHELL_PARAMETERS_PROTOCOL *ParamProtocol,\r
2304 OUT EFI_STATUS *CommandStatus\r
2305)\r
2306{\r
2307 EFI_STATUS Status;\r
2308 UINTN Argc;\r
2309 CHAR16 **Argv;\r
2310 SHELL_STATUS CommandReturnedStatus;\r
2311 BOOLEAN LastError;\r
2312 CHAR16 *Walker;\r
2313 CHAR16 *NewCmdLine; \r
2314\r
2315 NewCmdLine = AllocateCopyPool (StrSize (CmdLine), CmdLine);\r
2316 if (NewCmdLine == NULL) {\r
2317 return EFI_OUT_OF_RESOURCES;\r
2318 }\r
2319\r
2320 for (Walker = NewCmdLine; Walker != NULL && *Walker != CHAR_NULL ; Walker++) {\r
2321 if (*Walker == L'^' && *(Walker+1) == L'#') {\r
2322 CopyMem(Walker, Walker+1, StrSize(Walker) - sizeof(Walker[0]));\r
2323 }\r
2324 }\r
2325\r
2326 //\r
2327 // get the argc and argv updated for internal commands\r
2328 //\r
2329 Status = UpdateArgcArgv(ParamProtocol, NewCmdLine, Internal_Command, &Argv, &Argc);\r
2330 if (!EFI_ERROR(Status)) {\r
2331 //\r
2332 // Run the internal command.\r
2333 //\r
2334 Status = ShellCommandRunCommandHandler(FirstParameter, &CommandReturnedStatus, &LastError);\r
2335\r
2336 if (!EFI_ERROR(Status)) {\r
2337 if (CommandStatus != NULL) {\r
2338 if (CommandReturnedStatus != SHELL_SUCCESS) {\r
2339 *CommandStatus = (EFI_STATUS)(CommandReturnedStatus | MAX_BIT);\r
2340 } else {\r
2341 *CommandStatus = EFI_SUCCESS;\r
2342 }\r
2343 }\r
2344\r
2345 //\r
2346 // Update last error status.\r
2347 // some commands do not update last error.\r
2348 //\r
2349 if (LastError) {\r
2350 SetLastError(CommandReturnedStatus);\r
2351 }\r
2352\r
2353 //\r
2354 // Pass thru the exitcode from the app.\r
2355 //\r
2356 if (ShellCommandGetExit()) {\r
2357 //\r
2358 // An Exit was requested ("exit" command), pass its value up.\r
2359 //\r
2360 Status = CommandReturnedStatus;\r
2361 } else if (CommandReturnedStatus != SHELL_SUCCESS && IsScriptOnlyCommand(FirstParameter)) {\r
2362 //\r
2363 // Always abort when a script only command fails for any reason\r
2364 //\r
2365 Status = EFI_ABORTED;\r
2366 } else if (ShellCommandGetCurrentScriptFile() != NULL && CommandReturnedStatus == SHELL_ABORTED) {\r
2367 //\r
2368 // Abort when in a script and a command aborted\r
2369 //\r
2370 Status = EFI_ABORTED;\r
2371 }\r
2372 }\r
2373 }\r
2374\r
2375 //\r
2376 // This is guaranteed to be called after UpdateArgcArgv no matter what else happened.\r
2377 // This is safe even if the update API failed. In this case, it may be a no-op.\r
2378 //\r
2379 RestoreArgcArgv(ParamProtocol, &Argv, &Argc);\r
2380\r
2381 //\r
2382 // If a script is running and the command is not a script only command, then\r
2383 // change return value to success so the script won't halt (unless aborted).\r
2384 //\r
2385 // Script only commands have to be able halt the script since the script will\r
2386 // not operate if they are failing.\r
2387 //\r
2388 if ( ShellCommandGetCurrentScriptFile() != NULL\r
2389 && !IsScriptOnlyCommand(FirstParameter)\r
2390 && Status != EFI_ABORTED\r
2391 ) {\r
2392 Status = EFI_SUCCESS;\r
2393 }\r
2394\r
2395 FreePool (NewCmdLine);\r
2396 return (Status);\r
2397}\r
2398\r
2399/**\r
2400 Function to run the command or file.\r
2401\r
2402 @param[in] Type the type of operation being run.\r
2403 @param[in] CmdLine the command line to run.\r
2404 @param[in] FirstParameter the first parameter on the command line\r
2405 @param[in] ParamProtocol the shell parameters protocol pointer\r
2406 @param[out] CommandStatus the status from the command line.\r
2407\r
2408 @retval EFI_SUCCESS The command was completed.\r
2409 @retval EFI_ABORTED The command's operation was aborted.\r
2410**/\r
2411EFI_STATUS\r
2412RunCommandOrFile(\r
2413 IN SHELL_OPERATION_TYPES Type,\r
2414 IN CONST CHAR16 *CmdLine,\r
2415 IN CHAR16 *FirstParameter,\r
2416 IN EFI_SHELL_PARAMETERS_PROTOCOL *ParamProtocol,\r
2417 OUT EFI_STATUS *CommandStatus\r
2418)\r
2419{\r
2420 EFI_STATUS Status;\r
2421 EFI_STATUS StartStatus;\r
2422 CHAR16 *CommandWithPath;\r
2423 EFI_DEVICE_PATH_PROTOCOL *DevPath;\r
2424 SHELL_STATUS CalleeExitStatus;\r
2425\r
2426 Status = EFI_SUCCESS;\r
2427 CommandWithPath = NULL;\r
2428 DevPath = NULL;\r
2429 CalleeExitStatus = SHELL_INVALID_PARAMETER;\r
2430\r
2431 switch (Type) {\r
2432 case Internal_Command:\r
2433 Status = RunInternalCommand(CmdLine, FirstParameter, ParamProtocol, CommandStatus);\r
2434 break;\r
2435 case Script_File_Name:\r
2436 case Efi_Application:\r
2437 //\r
2438 // Process a fully qualified path\r
2439 //\r
2440 if (StrStr(FirstParameter, L":") != NULL) {\r
2441 ASSERT (CommandWithPath == NULL);\r
2442 if (ShellIsFile(FirstParameter) == EFI_SUCCESS) {\r
2443 CommandWithPath = StrnCatGrow(&CommandWithPath, NULL, FirstParameter, 0);\r
2444 }\r
2445 }\r
2446\r
2447 //\r
2448 // Process a relative path and also check in the path environment variable\r
2449 //\r
2450 if (CommandWithPath == NULL) {\r
2451 CommandWithPath = ShellFindFilePathEx(FirstParameter, mExecutableExtensions);\r
2452 }\r
2453\r
2454 //\r
2455 // This should be impossible now.\r
2456 //\r
2457 ASSERT(CommandWithPath != NULL);\r
2458\r
2459 //\r
2460 // Make sure that path is not just a directory (or not found)\r
2461 //\r
2462 if (!EFI_ERROR(ShellIsDirectory(CommandWithPath))) {\r
2463 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_NOT_FOUND), ShellInfoObject.HiiHandle, FirstParameter);\r
2464 SetLastError(SHELL_NOT_FOUND);\r
2465 }\r
2466 switch (Type) {\r
2467 case Script_File_Name:\r
2468 Status = RunScriptFile (CommandWithPath, NULL, CmdLine, ParamProtocol);\r
2469 break;\r
2470 case Efi_Application:\r
2471 //\r
2472 // Get the device path of the application image\r
2473 //\r
2474 DevPath = ShellInfoObject.NewEfiShellProtocol->GetDevicePathFromFilePath(CommandWithPath);\r
2475 if (DevPath == NULL){\r
2476 Status = EFI_OUT_OF_RESOURCES;\r
2477 break;\r
2478 }\r
2479\r
2480 //\r
2481 // Execute the device path\r
2482 //\r
2483 Status = InternalShellExecuteDevicePath(\r
2484 &gImageHandle,\r
2485 DevPath,\r
2486 CmdLine,\r
2487 NULL,\r
2488 &StartStatus\r
2489 );\r
2490\r
2491 SHELL_FREE_NON_NULL(DevPath);\r
2492\r
2493 if(EFI_ERROR (Status)) {\r
2494 CalleeExitStatus = (SHELL_STATUS) (Status & (~MAX_BIT));\r
2495 } else {\r
2496 CalleeExitStatus = (SHELL_STATUS) StartStatus;\r
2497 }\r
2498\r
2499 if (CommandStatus != NULL) {\r
2500 *CommandStatus = CalleeExitStatus;\r
2501 }\r
2502\r
2503 //\r
2504 // Update last error status.\r
2505 //\r
2506 // Status is an EFI_STATUS. Clear top bit to convert to SHELL_STATUS\r
2507 SetLastError(CalleeExitStatus);\r
2508 break;\r
2509 default:\r
2510 //\r
2511 // Do nothing.\r
2512 //\r
2513 break;\r
2514 }\r
2515 break;\r
2516 default:\r
2517 //\r
2518 // Do nothing.\r
2519 //\r
2520 break;\r
2521 }\r
2522\r
2523 SHELL_FREE_NON_NULL(CommandWithPath);\r
2524\r
2525 return (Status);\r
2526}\r
2527\r
2528/**\r
2529 Function to setup StdIn, StdErr, StdOut, and then run the command or file.\r
2530\r
2531 @param[in] Type the type of operation being run.\r
2532 @param[in] CmdLine the command line to run.\r
2533 @param[in] FirstParameter the first parameter on the command line.\r
2534 @param[in] ParamProtocol the shell parameters protocol pointer\r
2535 @param[out] CommandStatus the status from the command line.\r
2536\r
2537 @retval EFI_SUCCESS The command was completed.\r
2538 @retval EFI_ABORTED The command's operation was aborted.\r
2539**/\r
2540EFI_STATUS\r
2541SetupAndRunCommandOrFile(\r
2542 IN SHELL_OPERATION_TYPES Type,\r
2543 IN CHAR16 *CmdLine,\r
2544 IN CHAR16 *FirstParameter,\r
2545 IN EFI_SHELL_PARAMETERS_PROTOCOL *ParamProtocol,\r
2546 OUT EFI_STATUS *CommandStatus\r
2547)\r
2548{\r
2549 EFI_STATUS Status;\r
2550 SHELL_FILE_HANDLE OriginalStdIn;\r
2551 SHELL_FILE_HANDLE OriginalStdOut;\r
2552 SHELL_FILE_HANDLE OriginalStdErr;\r
2553 SYSTEM_TABLE_INFO OriginalSystemTableInfo;\r
2554 CONST SCRIPT_FILE *ConstScriptFile;\r
2555\r
2556 //\r
2557 // Update the StdIn, StdOut, and StdErr for redirection to environment variables, files, etc... unicode and ASCII\r
2558 //\r
2559 Status = UpdateStdInStdOutStdErr(ParamProtocol, CmdLine, &OriginalStdIn, &OriginalStdOut, &OriginalStdErr, &OriginalSystemTableInfo);\r
2560\r
2561 //\r
2562 // The StdIn, StdOut, and StdErr are set up.\r
2563 // Now run the command, script, or application\r
2564 //\r
2565 if (!EFI_ERROR(Status)) {\r
2566 TrimSpaces(&CmdLine);\r
2567 Status = RunCommandOrFile(Type, CmdLine, FirstParameter, ParamProtocol, CommandStatus);\r
2568 }\r
2569\r
2570 //\r
2571 // Now print errors\r
2572 //\r
2573 if (EFI_ERROR(Status)) {\r
2574 ConstScriptFile = ShellCommandGetCurrentScriptFile();\r
2575 if (ConstScriptFile == NULL || ConstScriptFile->CurrentCommand == NULL) {\r
2576 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_ERROR), ShellInfoObject.HiiHandle, (VOID*)(Status));\r
2577 } else {\r
2578 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_ERROR_SCRIPT), ShellInfoObject.HiiHandle, (VOID*)(Status), ConstScriptFile->CurrentCommand->Line);\r
2579 }\r
2580 }\r
2581\r
2582 //\r
2583 // put back the original StdIn, StdOut, and StdErr\r
2584 //\r
2585 RestoreStdInStdOutStdErr(ParamProtocol, &OriginalStdIn, &OriginalStdOut, &OriginalStdErr, &OriginalSystemTableInfo);\r
2586\r
2587 return (Status);\r
2588}\r
2589\r
2590/**\r
2591 Function will process and run a command line.\r
2592\r
2593 This will determine if the command line represents an internal shell \r
2594 command or dispatch an external application.\r
2595\r
2596 @param[in] CmdLine The command line to parse.\r
2597 @param[out] CommandStatus The status from the command line.\r
2598\r
2599 @retval EFI_SUCCESS The command was completed.\r
2600 @retval EFI_ABORTED The command's operation was aborted.\r
2601**/\r
2602EFI_STATUS\r
2603RunShellCommand(\r
2604 IN CONST CHAR16 *CmdLine,\r
2605 OUT EFI_STATUS *CommandStatus\r
2606 )\r
2607{\r
2608 EFI_STATUS Status;\r
2609 CHAR16 *CleanOriginal;\r
2610 CHAR16 *FirstParameter;\r
2611 CHAR16 *TempWalker;\r
2612 SHELL_OPERATION_TYPES Type;\r
2613\r
2614 ASSERT(CmdLine != NULL);\r
2615 if (StrLen(CmdLine) == 0) {\r
2616 return (EFI_SUCCESS);\r
2617 }\r
2618\r
2619 Status = EFI_SUCCESS;\r
2620 CleanOriginal = NULL;\r
2621\r
2622 CleanOriginal = StrnCatGrow(&CleanOriginal, NULL, CmdLine, 0);\r
2623 if (CleanOriginal == NULL) {\r
2624 return (EFI_OUT_OF_RESOURCES);\r
2625 }\r
2626\r
2627 TrimSpaces(&CleanOriginal);\r
2628\r
2629 //\r
2630 // NULL out comments (leveraged from RunScriptFileHandle() ).\r
2631 // The # character on a line is used to denote that all characters on the same line\r
2632 // and to the right of the # are to be ignored by the shell.\r
2633 // Afterwards, again remove spaces, in case any were between the last command-parameter and '#'.\r
2634 //\r
2635 for (TempWalker = CleanOriginal; TempWalker != NULL && *TempWalker != CHAR_NULL; TempWalker++) {\r
2636 if (*TempWalker == L'^') {\r
2637 if (*(TempWalker + 1) == L'#') {\r
2638 TempWalker++;\r
2639 }\r
2640 } else if (*TempWalker == L'#') {\r
2641 *TempWalker = CHAR_NULL;\r
2642 }\r
2643 }\r
2644\r
2645 TrimSpaces(&CleanOriginal);\r
2646\r
2647 //\r
2648 // Handle case that passed in command line is just 1 or more " " characters.\r
2649 //\r
2650 if (StrLen (CleanOriginal) == 0) {\r
2651 SHELL_FREE_NON_NULL(CleanOriginal);\r
2652 return (EFI_SUCCESS);\r
2653 }\r
2654\r
2655 Status = ProcessCommandLineToFinal(&CleanOriginal);\r
2656 if (EFI_ERROR(Status)) {\r
2657 SHELL_FREE_NON_NULL(CleanOriginal);\r
2658 return (Status);\r
2659 }\r
2660\r
2661 //\r
2662 // We don't do normal processing with a split command line (output from one command input to another)\r
2663 //\r
2664 if (ContainsSplit(CleanOriginal)) {\r
2665 Status = ProcessNewSplitCommandLine(CleanOriginal);\r
2666 SHELL_FREE_NON_NULL(CleanOriginal);\r
2667 return (Status);\r
2668 } \r
2669\r
2670 //\r
2671 // We need the first parameter information so we can determine the operation type\r
2672 //\r
2673 FirstParameter = AllocateZeroPool(StrSize(CleanOriginal));\r
2674 if (FirstParameter == NULL) {\r
2675 SHELL_FREE_NON_NULL(CleanOriginal);\r
2676 return (EFI_OUT_OF_RESOURCES);\r
2677 }\r
2678 TempWalker = CleanOriginal;\r
2679 if (!EFI_ERROR(GetNextParameter(&TempWalker, &FirstParameter, StrSize(CleanOriginal), TRUE))) {\r
2680 //\r
2681 // Depending on the first parameter we change the behavior\r
2682 //\r
2683 switch (Type = GetOperationType(FirstParameter)) {\r
2684 case File_Sys_Change:\r
2685 Status = ChangeMappedDrive (FirstParameter);\r
2686 break;\r
2687 case Internal_Command:\r
2688 case Script_File_Name:\r
2689 case Efi_Application:\r
2690 Status = SetupAndRunCommandOrFile(Type, CleanOriginal, FirstParameter, ShellInfoObject.NewShellParametersProtocol, CommandStatus);\r
2691 break;\r
2692 default:\r
2693 //\r
2694 // Whatever was typed, it was invalid.\r
2695 //\r
2696 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_NOT_FOUND), ShellInfoObject.HiiHandle, FirstParameter);\r
2697 SetLastError(SHELL_NOT_FOUND);\r
2698 break;\r
2699 }\r
2700 } else {\r
2701 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_NOT_FOUND), ShellInfoObject.HiiHandle, FirstParameter);\r
2702 SetLastError(SHELL_NOT_FOUND);\r
2703 }\r
2704 \r
2705 SHELL_FREE_NON_NULL(CleanOriginal);\r
2706 SHELL_FREE_NON_NULL(FirstParameter);\r
2707\r
2708 return (Status);\r
2709}\r
2710\r
2711/**\r
2712 Function will process and run a command line.\r
2713\r
2714 This will determine if the command line represents an internal shell \r
2715 command or dispatch an external application.\r
2716\r
2717 @param[in] CmdLine The command line to parse.\r
2718\r
2719 @retval EFI_SUCCESS The command was completed.\r
2720 @retval EFI_ABORTED The command's operation was aborted.\r
2721**/\r
2722EFI_STATUS\r
2723RunCommand(\r
2724 IN CONST CHAR16 *CmdLine\r
2725 )\r
2726{\r
2727 return (RunShellCommand(CmdLine, NULL));\r
2728}\r
2729\r
2730\r
2731STATIC CONST UINT16 InvalidChars[] = {L'*', L'?', L'<', L'>', L'\\', L'/', L'\"', 0x0001, 0x0002};\r
2732/**\r
2733 Function determines if the CommandName COULD be a valid command. It does not determine whether\r
2734 this is a valid command. It only checks for invalid characters.\r
2735\r
2736 @param[in] CommandName The name to check\r
2737\r
2738 @retval TRUE CommandName could be a command name\r
2739 @retval FALSE CommandName could not be a valid command name\r
2740**/\r
2741BOOLEAN\r
2742IsValidCommandName(\r
2743 IN CONST CHAR16 *CommandName\r
2744 )\r
2745{\r
2746 UINTN Count;\r
2747 if (CommandName == NULL) {\r
2748 ASSERT(FALSE);\r
2749 return (FALSE);\r
2750 }\r
2751 for ( Count = 0\r
2752 ; Count < sizeof(InvalidChars) / sizeof(InvalidChars[0])\r
2753 ; Count++\r
2754 ){\r
2755 if (ScanMem16(CommandName, StrSize(CommandName), InvalidChars[Count]) != NULL) {\r
2756 return (FALSE);\r
2757 }\r
2758 }\r
2759 return (TRUE);\r
2760}\r
2761\r
2762/**\r
2763 Function to process a NSH script file via SHELL_FILE_HANDLE.\r
2764\r
2765 @param[in] Handle The handle to the already opened file.\r
2766 @param[in] Name The name of the script file.\r
2767\r
2768 @retval EFI_SUCCESS the script completed successfully\r
2769**/\r
2770EFI_STATUS\r
2771RunScriptFileHandle (\r
2772 IN SHELL_FILE_HANDLE Handle,\r
2773 IN CONST CHAR16 *Name\r
2774 )\r
2775{\r
2776 EFI_STATUS Status;\r
2777 SCRIPT_FILE *NewScriptFile;\r
2778 UINTN LoopVar;\r
2779 UINTN PrintBuffSize;\r
2780 CHAR16 *CommandLine;\r
2781 CHAR16 *CommandLine2;\r
2782 CHAR16 *CommandLine3;\r
2783 SCRIPT_COMMAND_LIST *LastCommand;\r
2784 BOOLEAN Ascii;\r
2785 BOOLEAN PreScriptEchoState;\r
2786 BOOLEAN PreCommandEchoState;\r
2787 CONST CHAR16 *CurDir;\r
2788 UINTN LineCount;\r
2789 CHAR16 LeString[50];\r
2790 LIST_ENTRY OldBufferList;\r
2791\r
2792 ASSERT(!ShellCommandGetScriptExit());\r
2793\r
2794 PreScriptEchoState = ShellCommandGetEchoState();\r
2795 PrintBuffSize = PcdGet16(PcdShellPrintBufferSize);\r
2796\r
2797 NewScriptFile = (SCRIPT_FILE*)AllocateZeroPool(sizeof(SCRIPT_FILE));\r
2798 if (NewScriptFile == NULL) {\r
2799 return (EFI_OUT_OF_RESOURCES);\r
2800 }\r
2801\r
2802 //\r
2803 // Set up the name\r
2804 //\r
2805 ASSERT(NewScriptFile->ScriptName == NULL);\r
2806 NewScriptFile->ScriptName = StrnCatGrow(&NewScriptFile->ScriptName, NULL, Name, 0);\r
2807 if (NewScriptFile->ScriptName == NULL) {\r
2808 DeleteScriptFileStruct(NewScriptFile);\r
2809 return (EFI_OUT_OF_RESOURCES);\r
2810 }\r
2811\r
2812 //\r
2813 // Save the parameters (used to replace %0 to %9 later on)\r
2814 //\r
2815 NewScriptFile->Argc = ShellInfoObject.NewShellParametersProtocol->Argc;\r
2816 if (NewScriptFile->Argc != 0) {\r
2817 NewScriptFile->Argv = (CHAR16**)AllocateZeroPool(NewScriptFile->Argc * sizeof(CHAR16*));\r
2818 if (NewScriptFile->Argv == NULL) {\r
2819 DeleteScriptFileStruct(NewScriptFile);\r
2820 return (EFI_OUT_OF_RESOURCES);\r
2821 }\r
2822 for (LoopVar = 0 ; LoopVar < 10 && LoopVar < NewScriptFile->Argc; LoopVar++) {\r
2823 ASSERT(NewScriptFile->Argv[LoopVar] == NULL);\r
2824 NewScriptFile->Argv[LoopVar] = StrnCatGrow(&NewScriptFile->Argv[LoopVar], NULL, ShellInfoObject.NewShellParametersProtocol->Argv[LoopVar], 0);\r
2825 if (NewScriptFile->Argv[LoopVar] == NULL) {\r
2826 DeleteScriptFileStruct(NewScriptFile);\r
2827 return (EFI_OUT_OF_RESOURCES);\r
2828 }\r
2829 }\r
2830 } else {\r
2831 NewScriptFile->Argv = NULL;\r
2832 }\r
2833\r
2834 InitializeListHead(&NewScriptFile->CommandList);\r
2835 InitializeListHead(&NewScriptFile->SubstList);\r
2836\r
2837 //\r
2838 // Now build the list of all script commands.\r
2839 //\r
2840 LineCount = 0;\r
2841 while(!ShellFileHandleEof(Handle)) {\r
2842 CommandLine = ShellFileHandleReturnLine(Handle, &Ascii);\r
2843 LineCount++;\r
2844 if (CommandLine == NULL || StrLen(CommandLine) == 0 || CommandLine[0] == '#') {\r
2845 SHELL_FREE_NON_NULL(CommandLine);\r
2846 continue;\r
2847 }\r
2848 NewScriptFile->CurrentCommand = AllocateZeroPool(sizeof(SCRIPT_COMMAND_LIST));\r
2849 if (NewScriptFile->CurrentCommand == NULL) {\r
2850 SHELL_FREE_NON_NULL(CommandLine);\r
2851 DeleteScriptFileStruct(NewScriptFile);\r
2852 return (EFI_OUT_OF_RESOURCES);\r
2853 }\r
2854\r
2855 NewScriptFile->CurrentCommand->Cl = CommandLine;\r
2856 NewScriptFile->CurrentCommand->Data = NULL;\r
2857 NewScriptFile->CurrentCommand->Line = LineCount;\r
2858\r
2859 InsertTailList(&NewScriptFile->CommandList, &NewScriptFile->CurrentCommand->Link);\r
2860 }\r
2861\r
2862 //\r
2863 // Add this as the topmost script file\r
2864 //\r
2865 ShellCommandSetNewScript (NewScriptFile);\r
2866\r
2867 //\r
2868 // Now enumerate through the commands and run each one.\r
2869 //\r
2870 CommandLine = AllocateZeroPool(PrintBuffSize);\r
2871 if (CommandLine == NULL) {\r
2872 DeleteScriptFileStruct(NewScriptFile);\r
2873 return (EFI_OUT_OF_RESOURCES);\r
2874 }\r
2875 CommandLine2 = AllocateZeroPool(PrintBuffSize);\r
2876 if (CommandLine2 == NULL) {\r
2877 FreePool(CommandLine);\r
2878 DeleteScriptFileStruct(NewScriptFile);\r
2879 return (EFI_OUT_OF_RESOURCES);\r
2880 }\r
2881\r
2882 for ( NewScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)GetFirstNode(&NewScriptFile->CommandList)\r
2883 ; !IsNull(&NewScriptFile->CommandList, &NewScriptFile->CurrentCommand->Link)\r
2884 ; // conditional increment in the body of the loop\r
2885 ){\r
2886 ASSERT(CommandLine2 != NULL);\r
2887 StrnCpyS( CommandLine2, \r
2888 PrintBuffSize/sizeof(CHAR16), \r
2889 NewScriptFile->CurrentCommand->Cl,\r
2890 PrintBuffSize/sizeof(CHAR16) - 1\r
2891 );\r
2892\r
2893 SaveBufferList(&OldBufferList);\r
2894\r
2895 //\r
2896 // NULL out comments\r
2897 //\r
2898 for (CommandLine3 = CommandLine2 ; CommandLine3 != NULL && *CommandLine3 != CHAR_NULL ; CommandLine3++) {\r
2899 if (*CommandLine3 == L'^') {\r
2900 if ( *(CommandLine3+1) == L':') {\r
2901 CopyMem(CommandLine3, CommandLine3+1, StrSize(CommandLine3) - sizeof(CommandLine3[0]));\r
2902 } else if (*(CommandLine3+1) == L'#') {\r
2903 CommandLine3++;\r
2904 }\r
2905 } else if (*CommandLine3 == L'#') {\r
2906 *CommandLine3 = CHAR_NULL;\r
2907 }\r
2908 }\r
2909\r
2910 if (CommandLine2 != NULL && StrLen(CommandLine2) >= 1) {\r
2911 //\r
2912 // Due to variability in starting the find and replace action we need to have both buffers the same.\r
2913 //\r
2914 StrnCpyS( CommandLine, \r
2915 PrintBuffSize/sizeof(CHAR16), \r
2916 CommandLine2,\r
2917 PrintBuffSize/sizeof(CHAR16) - 1\r
2918 );\r
2919\r
2920 //\r
2921 // Remove the %0 to %9 from the command line (if we have some arguments)\r
2922 //\r
2923 if (NewScriptFile->Argv != NULL) {\r
2924 switch (NewScriptFile->Argc) {\r
2925 default:\r
2926 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%9", NewScriptFile->Argv[9], FALSE, FALSE);\r
2927 ASSERT_EFI_ERROR(Status);\r
2928 case 9:\r
2929 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%8", NewScriptFile->Argv[8], FALSE, FALSE);\r
2930 ASSERT_EFI_ERROR(Status);\r
2931 case 8:\r
2932 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%7", NewScriptFile->Argv[7], FALSE, FALSE);\r
2933 ASSERT_EFI_ERROR(Status);\r
2934 case 7:\r
2935 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%6", NewScriptFile->Argv[6], FALSE, FALSE);\r
2936 ASSERT_EFI_ERROR(Status);\r
2937 case 6:\r
2938 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%5", NewScriptFile->Argv[5], FALSE, FALSE);\r
2939 ASSERT_EFI_ERROR(Status);\r
2940 case 5:\r
2941 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%4", NewScriptFile->Argv[4], FALSE, FALSE);\r
2942 ASSERT_EFI_ERROR(Status);\r
2943 case 4:\r
2944 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%3", NewScriptFile->Argv[3], FALSE, FALSE);\r
2945 ASSERT_EFI_ERROR(Status);\r
2946 case 3:\r
2947 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%2", NewScriptFile->Argv[2], FALSE, FALSE);\r
2948 ASSERT_EFI_ERROR(Status);\r
2949 case 2:\r
2950 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%1", NewScriptFile->Argv[1], FALSE, FALSE);\r
2951 ASSERT_EFI_ERROR(Status);\r
2952 case 1:\r
2953 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%0", NewScriptFile->Argv[0], FALSE, FALSE);\r
2954 ASSERT_EFI_ERROR(Status);\r
2955 break;\r
2956 case 0:\r
2957 break;\r
2958 }\r
2959 }\r
2960 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%1", L"\"\"", FALSE, FALSE);\r
2961 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%2", L"\"\"", FALSE, FALSE);\r
2962 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%3", L"\"\"", FALSE, FALSE);\r
2963 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%4", L"\"\"", FALSE, FALSE);\r
2964 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%5", L"\"\"", FALSE, FALSE);\r
2965 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%6", L"\"\"", FALSE, FALSE);\r
2966 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%7", L"\"\"", FALSE, FALSE);\r
2967 Status = ShellCopySearchAndReplace(CommandLine, CommandLine2, PrintBuffSize, L"%8", L"\"\"", FALSE, FALSE);\r
2968 Status = ShellCopySearchAndReplace(CommandLine2, CommandLine, PrintBuffSize, L"%9", L"\"\"", FALSE, FALSE);\r
2969\r
2970 StrnCpyS( CommandLine2, \r
2971 PrintBuffSize/sizeof(CHAR16), \r
2972 CommandLine,\r
2973 PrintBuffSize/sizeof(CHAR16) - 1\r
2974 );\r
2975\r
2976 LastCommand = NewScriptFile->CurrentCommand;\r
2977\r
2978 for (CommandLine3 = CommandLine2 ; CommandLine3[0] == L' ' ; CommandLine3++);\r
2979\r
2980 if (CommandLine3 != NULL && CommandLine3[0] == L':' ) {\r
2981 //\r
2982 // This line is a goto target / label\r
2983 //\r
2984 } else {\r
2985 if (CommandLine3 != NULL && StrLen(CommandLine3) > 0) {\r
2986 if (CommandLine3[0] == L'@') {\r
2987 //\r
2988 // We need to save the current echo state\r
2989 // and disable echo for just this command.\r
2990 //\r
2991 PreCommandEchoState = ShellCommandGetEchoState();\r
2992 ShellCommandSetEchoState(FALSE);\r
2993 Status = RunCommand(CommandLine3+1);\r
2994\r
2995 //\r
2996 // If command was "@echo -off" or "@echo -on" then don't restore echo state\r
2997 //\r
2998 if (StrCmp (L"@echo -off", CommandLine3) != 0 &&\r
2999 StrCmp (L"@echo -on", CommandLine3) != 0) {\r
3000 //\r
3001 // Now restore the pre-'@' echo state.\r
3002 //\r
3003 ShellCommandSetEchoState(PreCommandEchoState);\r
3004 }\r
3005 } else {\r
3006 if (ShellCommandGetEchoState()) {\r
3007 CurDir = ShellInfoObject.NewEfiShellProtocol->GetEnv(L"cwd");\r
3008 if (CurDir != NULL && StrLen(CurDir) > 1) {\r
3009 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_CURDIR), ShellInfoObject.HiiHandle, CurDir);\r
3010 } else {\r
3011 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_SHELL_SHELL), ShellInfoObject.HiiHandle);\r
3012 }\r
3013 ShellPrintEx(-1, -1, L"%s\r\n", CommandLine2);\r
3014 }\r
3015 Status = RunCommand(CommandLine3);\r
3016 }\r
3017 }\r
3018\r
3019 if (ShellCommandGetScriptExit()) {\r
3020 //\r
3021 // ShellCommandGetExitCode() always returns a UINT64\r
3022 //\r
3023 UnicodeSPrint(LeString, sizeof(LeString), L"0x%Lx", ShellCommandGetExitCode());\r
3024 DEBUG_CODE(InternalEfiShellSetEnv(L"debuglasterror", LeString, TRUE););\r
3025 InternalEfiShellSetEnv(L"lasterror", LeString, TRUE);\r
3026\r
3027 ShellCommandRegisterExit(FALSE, 0);\r
3028 Status = EFI_SUCCESS;\r
3029 RestoreBufferList(&OldBufferList);\r
3030 break;\r
3031 }\r
3032 if (ShellGetExecutionBreakFlag()) {\r
3033 RestoreBufferList(&OldBufferList);\r
3034 break;\r
3035 }\r
3036 if (EFI_ERROR(Status)) {\r
3037 RestoreBufferList(&OldBufferList);\r
3038 break;\r
3039 }\r
3040 if (ShellCommandGetExit()) {\r
3041 RestoreBufferList(&OldBufferList);\r
3042 break;\r
3043 }\r
3044 }\r
3045 //\r
3046 // If that commend did not update the CurrentCommand then we need to advance it...\r
3047 //\r
3048 if (LastCommand == NewScriptFile->CurrentCommand) {\r
3049 NewScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)GetNextNode(&NewScriptFile->CommandList, &NewScriptFile->CurrentCommand->Link);\r
3050 if (!IsNull(&NewScriptFile->CommandList, &NewScriptFile->CurrentCommand->Link)) {\r
3051 NewScriptFile->CurrentCommand->Reset = TRUE;\r
3052 }\r
3053 }\r
3054 } else {\r
3055 NewScriptFile->CurrentCommand = (SCRIPT_COMMAND_LIST *)GetNextNode(&NewScriptFile->CommandList, &NewScriptFile->CurrentCommand->Link);\r
3056 if (!IsNull(&NewScriptFile->CommandList, &NewScriptFile->CurrentCommand->Link)) {\r
3057 NewScriptFile->CurrentCommand->Reset = TRUE;\r
3058 }\r
3059 }\r
3060 RestoreBufferList(&OldBufferList);\r
3061 }\r
3062\r
3063\r
3064 FreePool(CommandLine);\r
3065 FreePool(CommandLine2);\r
3066 ShellCommandSetNewScript (NULL);\r
3067\r
3068 //\r
3069 // Only if this was the last script reset the state.\r
3070 //\r
3071 if (ShellCommandGetCurrentScriptFile()==NULL) {\r
3072 ShellCommandSetEchoState(PreScriptEchoState);\r
3073 }\r
3074 return (EFI_SUCCESS);\r
3075}\r
3076\r
3077/**\r
3078 Function to process a NSH script file.\r
3079\r
3080 @param[in] ScriptPath Pointer to the script file name (including file system path).\r
3081 @param[in] Handle the handle of the script file already opened.\r
3082 @param[in] CmdLine the command line to run.\r
3083 @param[in] ParamProtocol the shell parameters protocol pointer\r
3084\r
3085 @retval EFI_SUCCESS the script completed successfully\r
3086**/\r
3087EFI_STATUS\r
3088RunScriptFile (\r
3089 IN CONST CHAR16 *ScriptPath,\r
3090 IN SHELL_FILE_HANDLE Handle OPTIONAL,\r
3091 IN CONST CHAR16 *CmdLine,\r
3092 IN EFI_SHELL_PARAMETERS_PROTOCOL *ParamProtocol\r
3093 )\r
3094{\r
3095 EFI_STATUS Status;\r
3096 SHELL_FILE_HANDLE FileHandle;\r
3097 UINTN Argc;\r
3098 CHAR16 **Argv;\r
3099\r
3100 if (ShellIsFile(ScriptPath) != EFI_SUCCESS) {\r
3101 return (EFI_INVALID_PARAMETER);\r
3102 }\r
3103\r
3104 //\r
3105 // get the argc and argv updated for scripts\r
3106 //\r
3107 Status = UpdateArgcArgv(ParamProtocol, CmdLine, Script_File_Name, &Argv, &Argc);\r
3108 if (!EFI_ERROR(Status)) {\r
3109\r
3110 if (Handle == NULL) {\r
3111 //\r
3112 // open the file\r
3113 //\r
3114 Status = ShellOpenFileByName(ScriptPath, &FileHandle, EFI_FILE_MODE_READ, 0);\r
3115 if (!EFI_ERROR(Status)) {\r
3116 //\r
3117 // run it\r
3118 //\r
3119 Status = RunScriptFileHandle(FileHandle, ScriptPath);\r
3120\r
3121 //\r
3122 // now close the file\r
3123 //\r
3124 ShellCloseFile(&FileHandle);\r
3125 }\r
3126 } else {\r
3127 Status = RunScriptFileHandle(Handle, ScriptPath);\r
3128 }\r
3129 }\r
3130\r
3131 //\r
3132 // This is guaranteed to be called after UpdateArgcArgv no matter what else happened.\r
3133 // This is safe even if the update API failed. In this case, it may be a no-op.\r
3134 //\r
3135 RestoreArgcArgv(ParamProtocol, &Argv, &Argc);\r
3136\r
3137 return (Status);\r
3138}\r
3139\r
3140/**\r
3141 Return the pointer to the first occurrence of any character from a list of characters.\r
3142\r
3143 @param[in] String the string to parse\r
3144 @param[in] CharacterList the list of character to look for\r
3145 @param[in] EscapeCharacter An escape character to skip\r
3146\r
3147 @return the location of the first character in the string\r
3148 @retval CHAR_NULL no instance of any character in CharacterList was found in String\r
3149**/\r
3150CONST CHAR16*\r
3151FindFirstCharacter(\r
3152 IN CONST CHAR16 *String,\r
3153 IN CONST CHAR16 *CharacterList,\r
3154 IN CONST CHAR16 EscapeCharacter\r
3155 )\r
3156{\r
3157 UINT32 WalkChar;\r
3158 UINT32 WalkStr;\r
3159\r
3160 for (WalkStr = 0; WalkStr < StrLen(String); WalkStr++) {\r
3161 if (String[WalkStr] == EscapeCharacter) {\r
3162 WalkStr++;\r
3163 continue;\r
3164 }\r
3165 for (WalkChar = 0; WalkChar < StrLen(CharacterList); WalkChar++) {\r
3166 if (String[WalkStr] == CharacterList[WalkChar]) {\r
3167 return (&String[WalkStr]);\r
3168 }\r
3169 }\r
3170 }\r
3171 return (String + StrLen(String));\r
3172}\r
EFI Development Kit II mirror for PVE