2 This is THE shell (application)
4 Copyright (c) 2009 - 2014, Intel Corporation. All rights reserved.<BR>
5 (C) Copyright 2013-2014, Hewlett-Packard Development Company, L.P.
6 This program and the accompanying materials
7 are licensed and made available under the terms and conditions of the BSD License
8 which accompanies this distribution. The full text of the license may be found at
9 http://opensource.org/licenses/bsd-license.php
11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
19 // Initialize the global structure
21 SHELL_INFO ShellInfoObject
= {
56 {{NULL
, NULL
}, NULL
, NULL
},
57 {{NULL
, NULL
}, NULL
, NULL
},
69 STATIC CONST CHAR16 mScriptExtension
[] = L
".NSH";
70 STATIC CONST CHAR16 mExecutableExtensions
[] = L
".NSH;.EFI";
71 STATIC CONST CHAR16 mStartupScript
[] = L
"startup.nsh";
74 Cleans off leading and trailing spaces and tabs.
76 @param[in] String pointer to the string to trim them off.
84 ASSERT(String
!= NULL
);
85 ASSERT(*String
!= NULL
);
87 // Remove any spaces and tabs at the beginning of the (*String).
89 while (((*String
)[0] == L
' ') || ((*String
)[0] == L
'\t')) {
90 CopyMem((*String
), (*String
)+1, StrSize((*String
)) - sizeof((*String
)[0]));
94 // Remove any spaces and tabs at the end of the (*String).
96 while ((StrLen (*String
) > 0) && (((*String
)[StrLen((*String
))-1] == L
' ') || ((*String
)[StrLen((*String
))-1] == L
'\t'))) {
97 (*String
)[StrLen((*String
))-1] = CHAR_NULL
;
100 return (EFI_SUCCESS
);
104 Parse for the next instance of one string within another string. Can optionally make sure that
105 the string was not escaped (^ character) per the shell specification.
107 @param[in] SourceString The string to search within
108 @param[in] FindString The string to look for
109 @param[in] CheckForEscapeCharacter TRUE to skip escaped instances of FinfString, otherwise will return even escaped instances
114 IN CONST CHAR16
*SourceString
,
115 IN CONST CHAR16
*FindString
,
116 IN CONST BOOLEAN CheckForEscapeCharacter
120 if (SourceString
== NULL
) {
123 Temp
= StrStr(SourceString
, FindString
);
126 // If nothing found, or we dont care about escape characters
128 if (Temp
== NULL
|| !CheckForEscapeCharacter
) {
133 // If we found an escaped character, try again on the remainder of the string
135 if ((Temp
> (SourceString
)) && *(Temp
-1) == L
'^') {
136 return FindNextInstance(Temp
+1, FindString
, CheckForEscapeCharacter
);
140 // we found the right character
146 Check whether the string between a pair of % is a valid envifronment variable name.
148 @param[in] BeginPercent pointer to the first percent.
149 @param[in] EndPercent pointer to the last percent.
151 @retval TRUE is a valid environment variable name.
152 @retval FALSE is NOT a valid environment variable name.
155 IsValidEnvironmentVariableName(
156 IN CONST CHAR16
*BeginPercent
,
157 IN CONST CHAR16
*EndPercent
160 CONST CHAR16
*Walker
;
164 ASSERT (BeginPercent
!= NULL
);
165 ASSERT (EndPercent
!= NULL
);
166 ASSERT (BeginPercent
< EndPercent
);
168 if ((BeginPercent
+ 1) == EndPercent
) {
172 for (Walker
= BeginPercent
+ 1; Walker
< EndPercent
; Walker
++) {
174 (*Walker
>= L
'0' && *Walker
<= L
'9') ||
175 (*Walker
>= L
'A' && *Walker
<= L
'Z') ||
176 (*Walker
>= L
'a' && *Walker
<= L
'z') ||
179 if (Walker
== BeginPercent
+ 1 && (*Walker
>= L
'0' && *Walker
<= L
'9')) {
193 Find a command line contains a split operation
195 @param[in] CmdLine The command line to parse.
197 @retval A pointer to the | character in CmdLine or NULL if not present.
202 IN CONST CHAR16
*CmdLine
205 CONST CHAR16
*TempSpot
;
207 if (StrStr(CmdLine
, L
"|") != NULL
) {
208 for (TempSpot
= CmdLine
; TempSpot
!= NULL
&& *TempSpot
!= CHAR_NULL
; TempSpot
++) {
209 if (*TempSpot
== L
'^' && *(TempSpot
+1) == L
'|') {
211 } else if (*TempSpot
== L
'|') {
220 Determine if a command line contains a split operation
222 @param[in] CmdLine The command line to parse.
224 @retval TRUE CmdLine has a valid split.
225 @retval FALSE CmdLine does not have a valid split.
230 IN CONST CHAR16
*CmdLine
233 CONST CHAR16
*TempSpot
;
234 CONST CHAR16
*FirstQuote
;
235 CONST CHAR16
*SecondQuote
;
237 FirstQuote
= FindNextInstance (CmdLine
, L
"\"", TRUE
);
239 TempSpot
= FindSplit(CmdLine
);
241 if (FirstQuote
== NULL
||
243 TempSpot
== CHAR_NULL
||
244 FirstQuote
> TempSpot
246 return (BOOLEAN
) ((TempSpot
!= NULL
) && (*TempSpot
!= CHAR_NULL
));
249 while ((TempSpot
!= NULL
) && (*TempSpot
!= CHAR_NULL
)) {
250 if (FirstQuote
== NULL
|| FirstQuote
> TempSpot
) {
253 SecondQuote
= FindNextInstance (FirstQuote
+ 1, L
"\"", TRUE
);
254 if (SecondQuote
== NULL
) {
257 if (SecondQuote
< TempSpot
) {
258 FirstQuote
= FindNextInstance (SecondQuote
+ 1, L
"\"", TRUE
);
261 FirstQuote
= FindNextInstance (SecondQuote
+ 1, L
"\"", TRUE
);
262 TempSpot
= FindSplit(TempSpot
+ 1);
267 return (BOOLEAN
) ((TempSpot
!= NULL
) && (*TempSpot
!= CHAR_NULL
));
271 Function to start monitoring for CTRL-S using SimpleTextInputEx. This
272 feature's enabled state was not known when the shell initially launched.
274 @retval EFI_SUCCESS The feature is enabled.
275 @retval EFI_OUT_OF_RESOURCES There is not enough mnemory available.
279 InternalEfiShellStartCtrlSMonitor(
283 EFI_SIMPLE_TEXT_INPUT_EX_PROTOCOL
*SimpleEx
;
284 EFI_KEY_DATA KeyData
;
287 Status
= gBS
->OpenProtocol(
288 gST
->ConsoleInHandle
,
289 &gEfiSimpleTextInputExProtocolGuid
,
293 EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
294 if (EFI_ERROR(Status
)) {
299 STRING_TOKEN (STR_SHELL_NO_IN_EX
),
300 ShellInfoObject
.HiiHandle
);
301 return (EFI_SUCCESS
);
304 KeyData
.KeyState
.KeyToggleState
= 0;
305 KeyData
.Key
.ScanCode
= 0;
306 KeyData
.KeyState
.KeyShiftState
= EFI_SHIFT_STATE_VALID
|EFI_LEFT_CONTROL_PRESSED
;
307 KeyData
.Key
.UnicodeChar
= L
's';
309 Status
= SimpleEx
->RegisterKeyNotify(
312 NotificationFunction
,
313 &ShellInfoObject
.CtrlSNotifyHandle1
);
315 KeyData
.KeyState
.KeyShiftState
= EFI_SHIFT_STATE_VALID
|EFI_RIGHT_CONTROL_PRESSED
;
316 if (!EFI_ERROR(Status
)) {
317 Status
= SimpleEx
->RegisterKeyNotify(
320 NotificationFunction
,
321 &ShellInfoObject
.CtrlSNotifyHandle2
);
323 KeyData
.KeyState
.KeyShiftState
= EFI_SHIFT_STATE_VALID
|EFI_LEFT_CONTROL_PRESSED
;
324 KeyData
.Key
.UnicodeChar
= 19;
326 if (!EFI_ERROR(Status
)) {
327 Status
= SimpleEx
->RegisterKeyNotify(
330 NotificationFunction
,
331 &ShellInfoObject
.CtrlSNotifyHandle3
);
333 KeyData
.KeyState
.KeyShiftState
= EFI_SHIFT_STATE_VALID
|EFI_RIGHT_CONTROL_PRESSED
;
334 if (!EFI_ERROR(Status
)) {
335 Status
= SimpleEx
->RegisterKeyNotify(
338 NotificationFunction
,
339 &ShellInfoObject
.CtrlSNotifyHandle4
);
347 The entry point for the application.
349 @param[in] ImageHandle The firmware allocated handle for the EFI image.
350 @param[in] SystemTable A pointer to the EFI System Table.
352 @retval EFI_SUCCESS The entry point is executed successfully.
353 @retval other Some error occurs when executing this entry point.
359 IN EFI_HANDLE ImageHandle
,
360 IN EFI_SYSTEM_TABLE
*SystemTable
366 EFI_HANDLE ConInHandle
;
367 EFI_SIMPLE_TEXT_INPUT_PROTOCOL
*OldConIn
;
369 if (PcdGet8(PcdShellSupportLevel
) > 3) {
370 return (EFI_UNSUPPORTED
);
376 Status
= gST
->ConOut
->ClearScreen(gST
->ConOut
);
377 if (EFI_ERROR(Status
)) {
382 // Populate the global structure from PCDs
384 ShellInfoObject
.ImageDevPath
= NULL
;
385 ShellInfoObject
.FileDevPath
= NULL
;
386 ShellInfoObject
.PageBreakEnabled
= PcdGetBool(PcdShellPageBreakDefault
);
387 ShellInfoObject
.ViewingSettings
.InsertMode
= PcdGetBool(PcdShellInsertModeDefault
);
388 ShellInfoObject
.LogScreenCount
= PcdGet8 (PcdShellScreenLogCount
);
391 // verify we dont allow for spec violation
393 ASSERT(ShellInfoObject
.LogScreenCount
>= 3);
396 // Initialize the LIST ENTRY objects...
398 InitializeListHead(&ShellInfoObject
.BufferToFreeList
.Link
);
399 InitializeListHead(&ShellInfoObject
.ViewingSettings
.CommandHistory
.Link
);
400 InitializeListHead(&ShellInfoObject
.SplitList
.Link
);
403 // Check PCDs for optional features that are not implemented yet.
405 if ( PcdGetBool(PcdShellSupportOldProtocols
)
406 || !FeaturePcdGet(PcdShellRequireHiiPlatform
)
407 || FeaturePcdGet(PcdShellSupportFrameworkHii
)
409 return (EFI_UNSUPPORTED
);
413 // turn off the watchdog timer
415 gBS
->SetWatchdogTimer (0, 0, 0, NULL
);
418 // install our console logger. This will keep a log of the output for back-browsing
420 Status
= ConsoleLoggerInstall(ShellInfoObject
.LogScreenCount
, &ShellInfoObject
.ConsoleInfo
);
421 if (!EFI_ERROR(Status
)) {
423 // Enable the cursor to be visible
425 gST
->ConOut
->EnableCursor (gST
->ConOut
, TRUE
);
428 // If supporting EFI 1.1 we need to install HII protocol
429 // only do this if PcdShellRequireHiiPlatform == FALSE
431 // remove EFI_UNSUPPORTED check above when complete.
432 ///@todo add support for Framework HII
435 // install our (solitary) HII package
437 ShellInfoObject
.HiiHandle
= HiiAddPackages (&gEfiCallerIdGuid
, gImageHandle
, ShellStrings
, NULL
);
438 if (ShellInfoObject
.HiiHandle
== NULL
) {
439 if (PcdGetBool(PcdShellSupportFrameworkHii
)) {
440 ///@todo Add our package into Framework HII
442 if (ShellInfoObject
.HiiHandle
== NULL
) {
443 Status
= EFI_NOT_STARTED
;
449 // create and install the EfiShellParametersProtocol
451 Status
= CreatePopulateInstallShellParametersProtocol(&ShellInfoObject
.NewShellParametersProtocol
, &ShellInfoObject
.RootShellInstance
);
452 ASSERT_EFI_ERROR(Status
);
453 ASSERT(ShellInfoObject
.NewShellParametersProtocol
!= NULL
);
456 // create and install the EfiShellProtocol
458 Status
= CreatePopulateInstallShellProtocol(&ShellInfoObject
.NewEfiShellProtocol
);
459 ASSERT_EFI_ERROR(Status
);
460 ASSERT(ShellInfoObject
.NewEfiShellProtocol
!= NULL
);
463 // Now initialize the shell library (it requires Shell Parameters protocol)
465 Status
= ShellInitialize();
466 ASSERT_EFI_ERROR(Status
);
468 Status
= CommandInit();
469 ASSERT_EFI_ERROR(Status
);
472 // Check the command line
474 Status
= ProcessCommandLine ();
475 if (EFI_ERROR (Status
)) {
480 // If shell support level is >= 1 create the mappings and paths
482 if (PcdGet8(PcdShellSupportLevel
) >= 1) {
483 Status
= ShellCommandCreateInitialMappingsAndPaths();
487 // save the device path for the loaded image and the device path for the filepath (under loaded image)
488 // These are where to look for the startup.nsh file
490 Status
= GetDevicePathsForImageAndFile(&ShellInfoObject
.ImageDevPath
, &ShellInfoObject
.FileDevPath
);
491 ASSERT_EFI_ERROR(Status
);
494 // Display the version
496 if (!ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoVersion
) {
499 gST
->ConOut
->Mode
->CursorRow
,
501 STRING_TOKEN (STR_VER_OUTPUT_MAIN_SHELL
),
502 ShellInfoObject
.HiiHandle
,
503 SupportLevel
[PcdGet8(PcdShellSupportLevel
)],
504 gEfiShellProtocol
->MajorVersion
,
505 gEfiShellProtocol
->MinorVersion
512 STRING_TOKEN (STR_VER_OUTPUT_MAIN_SUPPLIER
),
513 ShellInfoObject
.HiiHandle
,
514 (CHAR16
*) PcdGetPtr (PcdShellSupplier
)
521 STRING_TOKEN (STR_VER_OUTPUT_MAIN_UEFI
),
522 ShellInfoObject
.HiiHandle
,
523 (gST
->Hdr
.Revision
&0xffff0000)>>16,
524 (gST
->Hdr
.Revision
&0x0000ffff),
526 gST
->FirmwareRevision
531 // Display the mapping
533 if (PcdGet8(PcdShellSupportLevel
) >= 2 && !ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoMap
) {
534 Status
= RunCommand(L
"map");
535 ASSERT_EFI_ERROR(Status
);
539 // init all the built in alias'
541 Status
= SetBuiltInAlias();
542 ASSERT_EFI_ERROR(Status
);
545 // Initialize environment variables
547 if (ShellCommandGetProfileList() != NULL
) {
548 Status
= InternalEfiShellSetEnv(L
"profiles", ShellCommandGetProfileList(), TRUE
);
549 ASSERT_EFI_ERROR(Status
);
553 TempString
= AllocateZeroPool(Size
);
555 UnicodeSPrint(TempString
, Size
, L
"%d", PcdGet8(PcdShellSupportLevel
));
556 Status
= InternalEfiShellSetEnv(L
"uefishellsupport", TempString
, TRUE
);
557 ASSERT_EFI_ERROR(Status
);
559 UnicodeSPrint(TempString
, Size
, L
"%d.%d", ShellInfoObject
.NewEfiShellProtocol
->MajorVersion
, ShellInfoObject
.NewEfiShellProtocol
->MinorVersion
);
560 Status
= InternalEfiShellSetEnv(L
"uefishellversion", TempString
, TRUE
);
561 ASSERT_EFI_ERROR(Status
);
563 UnicodeSPrint(TempString
, Size
, L
"%d.%d", (gST
->Hdr
.Revision
& 0xFFFF0000) >> 16, gST
->Hdr
.Revision
& 0x0000FFFF);
564 Status
= InternalEfiShellSetEnv(L
"uefiversion", TempString
, TRUE
);
565 ASSERT_EFI_ERROR(Status
);
567 FreePool(TempString
);
569 if (!EFI_ERROR(Status
)) {
570 if (!ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoInterrupt
) {
572 // Set up the event for CTRL-C monitoring...
574 Status
= InernalEfiShellStartMonitor();
577 if (!EFI_ERROR(Status
) && !ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoConsoleIn
) {
579 // Set up the event for CTRL-S monitoring...
581 Status
= InternalEfiShellStartCtrlSMonitor();
584 if (!EFI_ERROR(Status
) && ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoConsoleIn
) {
586 // close off the gST->ConIn
588 OldConIn
= gST
->ConIn
;
589 ConInHandle
= gST
->ConsoleInHandle
;
590 gST
->ConIn
= CreateSimpleTextInOnFile((SHELL_FILE_HANDLE
)&FileInterfaceNulFile
, &gST
->ConsoleInHandle
);
596 if (!EFI_ERROR(Status
) && PcdGet8(PcdShellSupportLevel
) >= 1) {
598 // process the startup script or launch the called app.
600 Status
= DoStartupScript(ShellInfoObject
.ImageDevPath
, ShellInfoObject
.FileDevPath
);
603 if (!ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Exit
&& !ShellCommandGetExit() && (PcdGet8(PcdShellSupportLevel
) >= 3 || PcdGetBool(PcdShellForceConsole
)) && !EFI_ERROR(Status
) && !ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoConsoleIn
) {
605 // begin the UI waiting loop
609 // clean out all the memory allocated for CONST <something> * return values
610 // between each shell prompt presentation
612 if (!IsListEmpty(&ShellInfoObject
.BufferToFreeList
.Link
)){
613 FreeBufferList(&ShellInfoObject
.BufferToFreeList
);
617 // Reset page break back to default.
619 ShellInfoObject
.PageBreakEnabled
= PcdGetBool(PcdShellPageBreakDefault
);
620 ASSERT (ShellInfoObject
.ConsoleInfo
!= NULL
);
621 ShellInfoObject
.ConsoleInfo
->Enabled
= TRUE
;
622 ShellInfoObject
.ConsoleInfo
->RowCounter
= 0;
625 // Reset the CTRL-C event (yes we ignore the return values)
627 Status
= gBS
->CheckEvent (ShellInfoObject
.NewEfiShellProtocol
->ExecutionBreak
);
632 Status
= DoShellPrompt();
633 } while (!ShellCommandGetExit());
635 if (OldConIn
!= NULL
&& ConInHandle
!= NULL
) {
636 CloseSimpleTextInOnFile (gST
->ConIn
);
637 gST
->ConIn
= OldConIn
;
638 gST
->ConsoleInHandle
= ConInHandle
;
645 // uninstall protocols / free memory / etc...
647 if (ShellInfoObject
.UserBreakTimer
!= NULL
) {
648 gBS
->CloseEvent(ShellInfoObject
.UserBreakTimer
);
649 DEBUG_CODE(ShellInfoObject
.UserBreakTimer
= NULL
;);
651 if (ShellInfoObject
.ImageDevPath
!= NULL
) {
652 FreePool(ShellInfoObject
.ImageDevPath
);
653 DEBUG_CODE(ShellInfoObject
.ImageDevPath
= NULL
;);
655 if (ShellInfoObject
.FileDevPath
!= NULL
) {
656 FreePool(ShellInfoObject
.FileDevPath
);
657 DEBUG_CODE(ShellInfoObject
.FileDevPath
= NULL
;);
659 if (ShellInfoObject
.NewShellParametersProtocol
!= NULL
) {
660 CleanUpShellParametersProtocol(ShellInfoObject
.NewShellParametersProtocol
);
661 DEBUG_CODE(ShellInfoObject
.NewShellParametersProtocol
= NULL
;);
663 if (ShellInfoObject
.NewEfiShellProtocol
!= NULL
){
664 if (ShellInfoObject
.NewEfiShellProtocol
->IsRootShell()){
665 InternalEfiShellSetEnv(L
"cwd", NULL
, TRUE
);
667 CleanUpShellProtocol(ShellInfoObject
.NewEfiShellProtocol
);
668 DEBUG_CODE(ShellInfoObject
.NewEfiShellProtocol
= NULL
;);
671 if (!IsListEmpty(&ShellInfoObject
.BufferToFreeList
.Link
)){
672 FreeBufferList(&ShellInfoObject
.BufferToFreeList
);
675 if (!IsListEmpty(&ShellInfoObject
.SplitList
.Link
)){
676 ASSERT(FALSE
); ///@todo finish this de-allocation.
679 if (ShellInfoObject
.ShellInitSettings
.FileName
!= NULL
) {
680 FreePool(ShellInfoObject
.ShellInitSettings
.FileName
);
681 DEBUG_CODE(ShellInfoObject
.ShellInitSettings
.FileName
= NULL
;);
684 if (ShellInfoObject
.ShellInitSettings
.FileOptions
!= NULL
) {
685 FreePool(ShellInfoObject
.ShellInitSettings
.FileOptions
);
686 DEBUG_CODE(ShellInfoObject
.ShellInitSettings
.FileOptions
= NULL
;);
689 if (ShellInfoObject
.HiiHandle
!= NULL
) {
690 HiiRemovePackages(ShellInfoObject
.HiiHandle
);
691 DEBUG_CODE(ShellInfoObject
.HiiHandle
= NULL
;);
694 if (!IsListEmpty(&ShellInfoObject
.ViewingSettings
.CommandHistory
.Link
)){
695 FreeBufferList(&ShellInfoObject
.ViewingSettings
.CommandHistory
);
698 ASSERT(ShellInfoObject
.ConsoleInfo
!= NULL
);
699 if (ShellInfoObject
.ConsoleInfo
!= NULL
) {
700 ConsoleLoggerUninstall(ShellInfoObject
.ConsoleInfo
);
701 FreePool(ShellInfoObject
.ConsoleInfo
);
702 DEBUG_CODE(ShellInfoObject
.ConsoleInfo
= NULL
;);
705 if (ShellCommandGetExit()) {
706 return ((EFI_STATUS
)ShellCommandGetExitCode());
712 Sets all the alias' that were registered with the ShellCommandLib library.
714 @retval EFI_SUCCESS all init commands were run sucessfully.
722 CONST ALIAS_LIST
*List
;
726 // Get all the commands we want to run
728 List
= ShellCommandGetInitAliasList();
731 // for each command in the List
733 for ( Node
= (ALIAS_LIST
*)GetFirstNode(&List
->Link
)
734 ; !IsNull (&List
->Link
, &Node
->Link
)
735 ; Node
= (ALIAS_LIST
*)GetNextNode(&List
->Link
, &Node
->Link
)
738 // install the alias'
740 Status
= InternalSetAlias(Node
->CommandString
, Node
->Alias
, TRUE
);
741 ASSERT_EFI_ERROR(Status
);
743 return (EFI_SUCCESS
);
747 Internal function to determine if 2 command names are really the same.
749 @param[in] Command1 The pointer to the first command name.
750 @param[in] Command2 The pointer to the second command name.
752 @retval TRUE The 2 command names are the same.
753 @retval FALSE The 2 command names are not the same.
758 IN CONST CHAR16
*Command1
,
759 IN CONST CHAR16
*Command2
762 if (StringNoCaseCompare(&Command1
, &Command2
) == 0) {
769 Internal function to determine if a command is a script only command.
771 @param[in] CommandName The pointer to the command name.
773 @retval TRUE The command is a script only command.
774 @retval FALSE The command is not a script only command.
779 IN CONST CHAR16
*CommandName
782 if (IsCommand(CommandName
, L
"for")
783 ||IsCommand(CommandName
, L
"endfor")
784 ||IsCommand(CommandName
, L
"if")
785 ||IsCommand(CommandName
, L
"else")
786 ||IsCommand(CommandName
, L
"endif")
787 ||IsCommand(CommandName
, L
"goto")) {
794 This function will populate the 2 device path protocol parameters based on the
795 global gImageHandle. The DevPath will point to the device path for the handle that has
796 loaded image protocol installed on it. The FilePath will point to the device path
797 for the file that was loaded.
799 @param[in, out] DevPath On a sucessful return the device path to the loaded image.
800 @param[in, out] FilePath On a sucessful return the device path to the file.
802 @retval EFI_SUCCESS The 2 device paths were sucessfully returned.
803 @retval other A error from gBS->HandleProtocol.
809 GetDevicePathsForImageAndFile (
810 IN OUT EFI_DEVICE_PATH_PROTOCOL
**DevPath
,
811 IN OUT EFI_DEVICE_PATH_PROTOCOL
**FilePath
815 EFI_LOADED_IMAGE_PROTOCOL
*LoadedImage
;
816 EFI_DEVICE_PATH_PROTOCOL
*ImageDevicePath
;
818 ASSERT(DevPath
!= NULL
);
819 ASSERT(FilePath
!= NULL
);
821 Status
= gBS
->OpenProtocol (
823 &gEfiLoadedImageProtocolGuid
,
824 (VOID
**)&LoadedImage
,
827 EFI_OPEN_PROTOCOL_GET_PROTOCOL
829 if (!EFI_ERROR (Status
)) {
830 Status
= gBS
->OpenProtocol (
831 LoadedImage
->DeviceHandle
,
832 &gEfiDevicePathProtocolGuid
,
833 (VOID
**)&ImageDevicePath
,
836 EFI_OPEN_PROTOCOL_GET_PROTOCOL
838 if (!EFI_ERROR (Status
)) {
839 *DevPath
= DuplicateDevicePath (ImageDevicePath
);
840 *FilePath
= DuplicateDevicePath (LoadedImage
->FilePath
);
842 LoadedImage
->DeviceHandle
,
843 &gEfiDevicePathProtocolGuid
,
849 &gEfiLoadedImageProtocolGuid
,
857 Process all Uefi Shell 2.0 command line options.
859 see Uefi Shell 2.0 section 3.2 for full details.
861 the command line must resemble the following:
863 shell.efi [ShellOpt-options] [options] [file-name [file-name-options]]
865 ShellOpt-options Options which control the initialization behavior of the shell.
866 These options are read from the EFI global variable "ShellOpt"
867 and are processed before options or file-name.
869 options Options which control the initialization behavior of the shell.
871 file-name The name of a UEFI shell application or script to be executed
872 after initialization is complete. By default, if file-name is
873 specified, then -nostartup is implied. Scripts are not supported
876 file-name-options The command-line options that are passed to file-name when it
879 This will initialize the ShellInfoObject.ShellInitSettings global variable.
881 @retval EFI_SUCCESS The variable is initialized.
892 CHAR16
*DelayValueStr
;
895 EFI_UNICODE_COLLATION_PROTOCOL
*UnicodeCollation
;
897 // `file-name-options` will contain arguments to `file-name` that we don't
898 // know about. This would cause ShellCommandLineParse to error, so we parse
899 // arguments manually, ignoring those after the first thing that doesn't look
900 // like a shell option (which is assumed to be `file-name`).
902 Status
= gBS
->LocateProtocol (
903 &gEfiUnicodeCollationProtocolGuid
,
905 (VOID
**) &UnicodeCollation
907 if (EFI_ERROR (Status
)) {
911 // Set default options
912 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Startup
= FALSE
;
913 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoStartup
= FALSE
;
914 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoConsoleOut
= FALSE
;
915 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoConsoleIn
= FALSE
;
916 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoInterrupt
= FALSE
;
917 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoMap
= FALSE
;
918 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoVersion
= FALSE
;
919 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Delay
= FALSE
;
920 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Exit
= FALSE
;
921 ShellInfoObject
.ShellInitSettings
.Delay
= 5;
924 // Start LoopVar at 0 to parse only optional arguments at Argv[0]
925 // and parse other parameters from Argv[1]. This is for use case that
926 // UEFI Shell boot option is created, and OptionalData is provided
927 // that starts with shell command-line options.
929 for (LoopVar
= 0 ; LoopVar
< gEfiShellParametersProtocol
->Argc
; LoopVar
++) {
930 CurrentArg
= gEfiShellParametersProtocol
->Argv
[LoopVar
];
931 if (UnicodeCollation
->StriColl (
936 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Startup
= TRUE
;
938 else if (UnicodeCollation
->StriColl (
943 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoStartup
= TRUE
;
945 else if (UnicodeCollation
->StriColl (
950 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoConsoleOut
= TRUE
;
952 else if (UnicodeCollation
->StriColl (
957 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoConsoleIn
= TRUE
;
959 else if (UnicodeCollation
->StriColl (
964 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoInterrupt
= TRUE
;
966 else if (UnicodeCollation
->StriColl (
971 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoMap
= TRUE
;
973 else if (UnicodeCollation
->StriColl (
978 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoVersion
= TRUE
;
980 else if (UnicodeCollation
->StriColl (
985 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Delay
= TRUE
;
986 // Check for optional delay value following "-delay"
987 DelayValueStr
= gEfiShellParametersProtocol
->Argv
[LoopVar
+ 1];
988 if (DelayValueStr
!= NULL
){
989 if (*DelayValueStr
== L
':') {
992 if (!EFI_ERROR(ShellConvertStringToUint64 (
998 ShellInfoObject
.ShellInitSettings
.Delay
= (UINTN
)DelayValue
;
1002 } else if (UnicodeCollation
->StriColl (
1007 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Exit
= TRUE
;
1008 } else if (StrnCmp (L
"-", CurrentArg
, 1) == 0) {
1009 // Unrecognised option
1010 ShellPrintHiiEx(-1, -1, NULL
,
1011 STRING_TOKEN (STR_GEN_PROBLEM
),
1012 ShellInfoObject
.HiiHandle
,
1015 return EFI_INVALID_PARAMETER
;
1018 // First argument should be Shell.efi image name
1024 ShellInfoObject
.ShellInitSettings
.FileName
= AllocateCopyPool(StrSize(CurrentArg
), CurrentArg
);
1025 if (ShellInfoObject
.ShellInitSettings
.FileName
== NULL
) {
1026 return (EFI_OUT_OF_RESOURCES
);
1029 // We found `file-name`.
1031 ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoStartup
= 1;
1034 // Add `file-name-options`
1035 for (Size
= 0 ; LoopVar
< gEfiShellParametersProtocol
->Argc
; LoopVar
++) {
1036 ASSERT((ShellInfoObject
.ShellInitSettings
.FileOptions
== NULL
&& Size
== 0) || (ShellInfoObject
.ShellInitSettings
.FileOptions
!= NULL
));
1037 StrnCatGrow(&ShellInfoObject
.ShellInitSettings
.FileOptions
,
1041 if (ShellInfoObject
.ShellInitSettings
.FileOptions
== NULL
) {
1042 SHELL_FREE_NON_NULL(ShellInfoObject
.ShellInitSettings
.FileName
);
1043 return (EFI_OUT_OF_RESOURCES
);
1045 StrnCatGrow(&ShellInfoObject
.ShellInitSettings
.FileOptions
,
1047 gEfiShellParametersProtocol
->Argv
[LoopVar
],
1049 if (ShellInfoObject
.ShellInitSettings
.FileOptions
== NULL
) {
1050 SHELL_FREE_NON_NULL(ShellInfoObject
.ShellInitSettings
.FileName
);
1051 return (EFI_OUT_OF_RESOURCES
);
1057 // "-nointerrupt" overrides "-delay"
1058 if (ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoInterrupt
) {
1059 ShellInfoObject
.ShellInitSettings
.Delay
= 0;
1066 Handles all interaction with the default startup script.
1068 this will check that the correct command line parameters were passed, handle the delay, and then start running the script.
1070 @param ImagePath the path to the image for shell. first place to look for the startup script
1071 @param FilePath the path to the file for shell. second place to look for the startup script.
1073 @retval EFI_SUCCESS the variable is initialized.
1078 IN EFI_DEVICE_PATH_PROTOCOL
*ImagePath
,
1079 IN EFI_DEVICE_PATH_PROTOCOL
*FilePath
1085 SHELL_FILE_HANDLE FileHandle
;
1086 EFI_DEVICE_PATH_PROTOCOL
*NewPath
;
1087 EFI_DEVICE_PATH_PROTOCOL
*NamePath
;
1088 CHAR16
*FileStringPath
;
1091 CONST CHAR16
*MapName
;
1093 Key
.UnicodeChar
= CHAR_NULL
;
1097 if (!ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Startup
&& ShellInfoObject
.ShellInitSettings
.FileName
!= NULL
) {
1099 // launch something else instead
1101 NewSize
= StrSize(ShellInfoObject
.ShellInitSettings
.FileName
);
1102 if (ShellInfoObject
.ShellInitSettings
.FileOptions
!= NULL
) {
1103 NewSize
+= StrSize(ShellInfoObject
.ShellInitSettings
.FileOptions
) + sizeof(CHAR16
);
1105 FileStringPath
= AllocateZeroPool(NewSize
);
1106 if (FileStringPath
== NULL
) {
1107 return (EFI_OUT_OF_RESOURCES
);
1109 StrnCpy(FileStringPath
, ShellInfoObject
.ShellInitSettings
.FileName
, NewSize
/sizeof(CHAR16
) -1);
1110 if (ShellInfoObject
.ShellInitSettings
.FileOptions
!= NULL
) {
1111 StrnCat(FileStringPath
, L
" ", NewSize
/sizeof(CHAR16
) - StrLen(FileStringPath
) -1);
1112 StrnCat(FileStringPath
, ShellInfoObject
.ShellInitSettings
.FileOptions
, NewSize
/sizeof(CHAR16
) - StrLen(FileStringPath
) -1);
1114 Status
= RunCommand(FileStringPath
);
1115 FreePool(FileStringPath
);
1121 // for shell level 0 we do no scripts
1122 // Without the Startup bit overriding we allow for nostartup to prevent scripts
1124 if ( (PcdGet8(PcdShellSupportLevel
) < 1)
1125 || (ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoStartup
&& !ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.Startup
)
1127 return (EFI_SUCCESS
);
1130 gST
->ConOut
->EnableCursor(gST
->ConOut
, FALSE
);
1132 // print out our warning and see if they press a key
1134 for ( Status
= EFI_UNSUPPORTED
, Delay
= ShellInfoObject
.ShellInitSettings
.Delay
1135 ; Delay
!= 0 && EFI_ERROR(Status
)
1138 ShellPrintHiiEx(0, gST
->ConOut
->Mode
->CursorRow
, NULL
, STRING_TOKEN (STR_SHELL_STARTUP_QUESTION
), ShellInfoObject
.HiiHandle
, Delay
);
1139 gBS
->Stall (1000000);
1140 if (!ShellInfoObject
.ShellInitSettings
.BitUnion
.Bits
.NoConsoleIn
) {
1141 Status
= gST
->ConIn
->ReadKeyStroke (gST
->ConIn
, &Key
);
1144 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_CRLF
), ShellInfoObject
.HiiHandle
);
1145 gST
->ConOut
->EnableCursor(gST
->ConOut
, TRUE
);
1150 if (Status
== EFI_SUCCESS
&& Key
.UnicodeChar
== 0 && Key
.ScanCode
== SCAN_ESC
) {
1151 return (EFI_SUCCESS
);
1155 // Try the first location (must be file system)
1157 MapName
= ShellInfoObject
.NewEfiShellProtocol
->GetMapFromDevicePath(&ImagePath
);
1158 if (MapName
!= NULL
) {
1159 FileStringPath
= NULL
;
1161 FileStringPath
= StrnCatGrow(&FileStringPath
, &NewSize
, MapName
, 0);
1162 if (FileStringPath
== NULL
) {
1163 Status
= EFI_OUT_OF_RESOURCES
;
1165 TempSpot
= StrStr(FileStringPath
, L
";");
1166 if (TempSpot
!= NULL
) {
1167 *TempSpot
= CHAR_NULL
;
1169 FileStringPath
= StrnCatGrow(&FileStringPath
, &NewSize
, ((FILEPATH_DEVICE_PATH
*)FilePath
)->PathName
, 0);
1170 PathRemoveLastItem(FileStringPath
);
1171 FileStringPath
= StrnCatGrow(&FileStringPath
, &NewSize
, mStartupScript
, 0);
1172 Status
= ShellInfoObject
.NewEfiShellProtocol
->OpenFileByName(FileStringPath
, &FileHandle
, EFI_FILE_MODE_READ
);
1173 FreePool(FileStringPath
);
1176 if (EFI_ERROR(Status
)) {
1177 NamePath
= FileDevicePath (NULL
, mStartupScript
);
1178 NewPath
= AppendDevicePathNode (ImagePath
, NamePath
);
1184 Status
= InternalOpenFileDevicePath(NewPath
, &FileHandle
, EFI_FILE_MODE_READ
, 0);
1188 // If we got a file, run it
1190 if (!EFI_ERROR(Status
) && FileHandle
!= NULL
) {
1191 Status
= RunScriptFile (mStartupScript
, FileHandle
, L
"", ShellInfoObject
.NewShellParametersProtocol
);
1192 ShellInfoObject
.NewEfiShellProtocol
->CloseFile(FileHandle
);
1194 FileStringPath
= ShellFindFilePath(mStartupScript
);
1195 if (FileStringPath
== NULL
) {
1197 // we return success since we dont need to have a startup script
1199 Status
= EFI_SUCCESS
;
1200 ASSERT(FileHandle
== NULL
);
1202 Status
= RunScriptFile(FileStringPath
, NULL
, L
"", ShellInfoObject
.NewShellParametersProtocol
);
1203 FreePool(FileStringPath
);
1212 Function to perform the shell prompt looping. It will do a single prompt,
1213 dispatch the result, and then return. It is expected that the caller will
1214 call this function in a loop many times.
1217 @retval RETURN_ABORTED
1228 CONST CHAR16
*CurDir
;
1235 // Get screen setting to decide size of the command line buffer
1237 gST
->ConOut
->QueryMode (gST
->ConOut
, gST
->ConOut
->Mode
->Mode
, &Column
, &Row
);
1238 BufferSize
= Column
* Row
* sizeof (CHAR16
);
1239 CmdLine
= AllocateZeroPool (BufferSize
);
1240 if (CmdLine
== NULL
) {
1241 return EFI_OUT_OF_RESOURCES
;
1244 CurDir
= ShellInfoObject
.NewEfiShellProtocol
->GetEnv(L
"cwd");
1249 gST
->ConOut
->SetCursorPosition (gST
->ConOut
, 0, gST
->ConOut
->Mode
->CursorRow
);
1251 if (CurDir
!= NULL
&& StrLen(CurDir
) > 1) {
1252 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_CURDIR
), ShellInfoObject
.HiiHandle
, CurDir
);
1254 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_SHELL
), ShellInfoObject
.HiiHandle
);
1258 // Read a line from the console
1260 Status
= ShellInfoObject
.NewEfiShellProtocol
->ReadFile(ShellInfoObject
.NewShellParametersProtocol
->StdIn
, &BufferSize
, CmdLine
);
1263 // Null terminate the string and parse it
1265 if (!EFI_ERROR (Status
)) {
1266 CmdLine
[BufferSize
/ sizeof (CHAR16
)] = CHAR_NULL
;
1267 Status
= RunCommand(CmdLine
);
1271 // Done with this command
1278 Add a buffer to the Buffer To Free List for safely returning buffers to other
1279 places without risking letting them modify internal shell information.
1281 @param Buffer Something to pass to FreePool when the shell is exiting.
1285 AddBufferToFreeList(
1289 BUFFER_LIST
*BufferListEntry
;
1291 if (Buffer
== NULL
) {
1295 BufferListEntry
= AllocateZeroPool(sizeof(BUFFER_LIST
));
1296 ASSERT(BufferListEntry
!= NULL
);
1297 BufferListEntry
->Buffer
= Buffer
;
1298 InsertTailList(&ShellInfoObject
.BufferToFreeList
.Link
, &BufferListEntry
->Link
);
1303 Add a buffer to the Line History List
1305 @param Buffer The line buffer to add.
1309 AddLineToCommandHistory(
1310 IN CONST CHAR16
*Buffer
1315 Node
= AllocateZeroPool(sizeof(BUFFER_LIST
));
1316 ASSERT(Node
!= NULL
);
1317 Node
->Buffer
= AllocateCopyPool(StrSize(Buffer
), Buffer
);
1318 ASSERT(Node
->Buffer
!= NULL
);
1320 InsertTailList(&ShellInfoObject
.ViewingSettings
.CommandHistory
.Link
, &Node
->Link
);
1324 Checks if a string is an alias for another command. If yes, then it replaces the alias name
1325 with the correct command name.
1327 @param[in, out] CommandString Upon entry the potential alias. Upon return the
1328 command name if it was an alias. If it was not
1329 an alias it will be unchanged. This function may
1330 change the buffer to fit the command name.
1332 @retval EFI_SUCCESS The name was changed.
1333 @retval EFI_SUCCESS The name was not an alias.
1334 @retval EFI_OUT_OF_RESOURCES A memory allocation failed.
1339 IN OUT CHAR16
**CommandString
1342 CONST CHAR16
*NewString
;
1344 NewString
= ShellInfoObject
.NewEfiShellProtocol
->GetAlias(*CommandString
, NULL
);
1345 if (NewString
== NULL
) {
1346 return (EFI_SUCCESS
);
1348 FreePool(*CommandString
);
1349 *CommandString
= AllocateCopyPool(StrSize(NewString
), NewString
);
1350 if (*CommandString
== NULL
) {
1351 return (EFI_OUT_OF_RESOURCES
);
1353 return (EFI_SUCCESS
);
1357 This function will eliminate unreplaced (and therefore non-found) environment variables.
1359 @param[in,out] CmdLine The command line to update.
1363 StripUnreplacedEnvironmentVariables(
1364 IN OUT CHAR16
*CmdLine
1367 CHAR16
*FirstPercent
;
1369 CHAR16
*SecondPercent
;
1370 CHAR16
*SecondQuote
;
1371 CHAR16
*CurrentLocator
;
1373 for (CurrentLocator
= CmdLine
; CurrentLocator
!= NULL
; ) {
1374 FirstQuote
= FindNextInstance(CurrentLocator
, L
"\"", TRUE
);
1375 FirstPercent
= FindNextInstance(CurrentLocator
, L
"%", TRUE
);
1376 SecondPercent
= FirstPercent
!=NULL
?FindNextInstance(FirstPercent
+1, L
"%", TRUE
):NULL
;
1377 if (FirstPercent
== NULL
|| SecondPercent
== NULL
) {
1379 // If we ever dont have 2 % we are done.
1384 if (FirstQuote
< FirstPercent
) {
1385 SecondQuote
= FirstQuote
!= NULL
?FindNextInstance(FirstQuote
+1, L
"\"", TRUE
):NULL
;
1387 // Quote is first found
1390 if (SecondQuote
< FirstPercent
) {
1392 // restart after the pair of "
1394 CurrentLocator
= SecondQuote
+ 1;
1395 } else /* FirstPercent < SecondQuote */{
1397 // Restart on the first percent
1399 CurrentLocator
= FirstPercent
;
1403 ASSERT(FirstPercent
< FirstQuote
);
1404 if (SecondPercent
< FirstQuote
) {
1405 if (IsValidEnvironmentVariableName(FirstPercent
, SecondPercent
)) {
1407 // We need to remove from FirstPercent to SecondPercent
1409 CopyMem(FirstPercent
, SecondPercent
+ 1, StrSize(SecondPercent
+ 1));
1411 // dont need to update the locator. both % characters are gone.
1414 CurrentLocator
= SecondPercent
+ 1;
1418 ASSERT(FirstQuote
< SecondPercent
);
1419 CurrentLocator
= FirstQuote
;
1421 return (EFI_SUCCESS
);
1425 Function allocates a new command line and replaces all instances of environment
1426 variable names that are correctly preset to their values.
1428 If the return value is not NULL the memory must be caller freed.
1430 @param[in] OriginalCommandLine The original command line
1432 @retval NULL An error ocurred.
1433 @return The new command line with no environment variables present.
1437 ShellConvertVariables (
1438 IN CONST CHAR16
*OriginalCommandLine
1441 CONST CHAR16
*MasterEnvList
;
1443 CHAR16
*NewCommandLine1
;
1444 CHAR16
*NewCommandLine2
;
1448 SCRIPT_FILE
*CurrentScriptFile
;
1449 ALIAS_LIST
*AliasListNode
;
1451 ASSERT(OriginalCommandLine
!= NULL
);
1454 NewSize
= StrSize(OriginalCommandLine
);
1455 CurrentScriptFile
= ShellCommandGetCurrentScriptFile();
1458 ///@todo update this to handle the %0 - %9 for scripting only (borrow from line 1256 area) ? ? ?
1461 // calculate the size required for the post-conversion string...
1463 if (CurrentScriptFile
!= NULL
) {
1464 for (AliasListNode
= (ALIAS_LIST
*)GetFirstNode(&CurrentScriptFile
->SubstList
)
1465 ; !IsNull(&CurrentScriptFile
->SubstList
, &AliasListNode
->Link
)
1466 ; AliasListNode
= (ALIAS_LIST
*)GetNextNode(&CurrentScriptFile
->SubstList
, &AliasListNode
->Link
)
1468 for (Temp
= StrStr(OriginalCommandLine
, AliasListNode
->Alias
)
1470 ; Temp
= StrStr(Temp
+1, AliasListNode
->Alias
)
1473 // we need a preceeding and if there is space no ^ preceeding (if no space ignore)
1475 if ((((Temp
-OriginalCommandLine
)>2) && *(Temp
-2) != L
'^') || ((Temp
-OriginalCommandLine
)<=2)) {
1476 NewSize
+= StrSize(AliasListNode
->CommandString
);
1482 for (MasterEnvList
= EfiShellGetEnv(NULL
)
1483 ; MasterEnvList
!= NULL
&& *MasterEnvList
!= CHAR_NULL
//&& *(MasterEnvList+1) != CHAR_NULL
1484 ; MasterEnvList
+= StrLen(MasterEnvList
) + 1
1486 if (StrSize(MasterEnvList
) > ItemSize
) {
1487 ItemSize
= StrSize(MasterEnvList
);
1489 for (Temp
= StrStr(OriginalCommandLine
, MasterEnvList
)
1491 ; Temp
= StrStr(Temp
+1, MasterEnvList
)
1494 // we need a preceeding and following % and if there is space no ^ preceeding (if no space ignore)
1496 if (*(Temp
-1) == L
'%' && *(Temp
+StrLen(MasterEnvList
)) == L
'%' &&
1497 ((((Temp
-OriginalCommandLine
)>2) && *(Temp
-2) != L
'^') || ((Temp
-OriginalCommandLine
)<=2))) {
1498 NewSize
+=StrSize(EfiShellGetEnv(MasterEnvList
));
1504 // now do the replacements...
1506 NewCommandLine1
= AllocateCopyPool(NewSize
, OriginalCommandLine
);
1507 NewCommandLine2
= AllocateZeroPool(NewSize
);
1508 ItemTemp
= AllocateZeroPool(ItemSize
+(2*sizeof(CHAR16
)));
1509 if (NewCommandLine1
== NULL
|| NewCommandLine2
== NULL
|| ItemTemp
== NULL
) {
1510 SHELL_FREE_NON_NULL(NewCommandLine1
);
1511 SHELL_FREE_NON_NULL(NewCommandLine2
);
1512 SHELL_FREE_NON_NULL(ItemTemp
);
1515 for (MasterEnvList
= EfiShellGetEnv(NULL
)
1516 ; MasterEnvList
!= NULL
&& *MasterEnvList
!= CHAR_NULL
1517 ; MasterEnvList
+= StrLen(MasterEnvList
) + 1
1519 StrnCpy(ItemTemp
, L
"%", ((ItemSize
+(2*sizeof(CHAR16
)))/sizeof(CHAR16
))-1);
1520 StrnCat(ItemTemp
, MasterEnvList
, ((ItemSize
+(2*sizeof(CHAR16
)))/sizeof(CHAR16
))-1 - StrLen(ItemTemp
));
1521 StrnCat(ItemTemp
, L
"%", ((ItemSize
+(2*sizeof(CHAR16
)))/sizeof(CHAR16
))-1 - StrLen(ItemTemp
));
1522 ShellCopySearchAndReplace(NewCommandLine1
, NewCommandLine2
, NewSize
, ItemTemp
, EfiShellGetEnv(MasterEnvList
), TRUE
, FALSE
);
1523 StrnCpy(NewCommandLine1
, NewCommandLine2
, NewSize
/sizeof(CHAR16
)-1);
1525 if (CurrentScriptFile
!= NULL
) {
1526 for (AliasListNode
= (ALIAS_LIST
*)GetFirstNode(&CurrentScriptFile
->SubstList
)
1527 ; !IsNull(&CurrentScriptFile
->SubstList
, &AliasListNode
->Link
)
1528 ; AliasListNode
= (ALIAS_LIST
*)GetNextNode(&CurrentScriptFile
->SubstList
, &AliasListNode
->Link
)
1530 ShellCopySearchAndReplace(NewCommandLine1
, NewCommandLine2
, NewSize
, AliasListNode
->Alias
, AliasListNode
->CommandString
, TRUE
, FALSE
);
1531 StrnCpy(NewCommandLine1
, NewCommandLine2
, NewSize
/sizeof(CHAR16
)-1);
1535 // Remove non-existant environment variables in scripts only
1537 StripUnreplacedEnvironmentVariables(NewCommandLine1
);
1541 // Now cleanup any straggler intentionally ignored "%" characters
1543 ShellCopySearchAndReplace(NewCommandLine1
, NewCommandLine2
, NewSize
, L
"^%", L
"%", TRUE
, FALSE
);
1544 StrnCpy(NewCommandLine1
, NewCommandLine2
, NewSize
/sizeof(CHAR16
)-1);
1546 FreePool(NewCommandLine2
);
1549 return (NewCommandLine1
);
1553 Internal function to run a command line with pipe usage.
1555 @param[in] CmdLine The pointer to the command line.
1556 @param[in] StdIn The pointer to the Standard input.
1557 @param[in] StdOut The pointer to the Standard output.
1559 @retval EFI_SUCCESS The split command is executed successfully.
1560 @retval other Some error occurs when executing the split command.
1565 IN CONST CHAR16
*CmdLine
,
1566 IN SHELL_FILE_HANDLE
*StdIn
,
1567 IN SHELL_FILE_HANDLE
*StdOut
1571 CHAR16
*NextCommandLine
;
1572 CHAR16
*OurCommandLine
;
1576 SHELL_FILE_HANDLE
*TempFileHandle
;
1579 ASSERT(StdOut
== NULL
);
1581 ASSERT(StrStr(CmdLine
, L
"|") != NULL
);
1583 Status
= EFI_SUCCESS
;
1584 NextCommandLine
= NULL
;
1585 OurCommandLine
= NULL
;
1589 NextCommandLine
= StrnCatGrow(&NextCommandLine
, &Size1
, StrStr(CmdLine
, L
"|")+1, 0);
1590 OurCommandLine
= StrnCatGrow(&OurCommandLine
, &Size2
, CmdLine
, StrStr(CmdLine
, L
"|") - CmdLine
);
1592 if (NextCommandLine
== NULL
|| OurCommandLine
== NULL
) {
1593 SHELL_FREE_NON_NULL(OurCommandLine
);
1594 SHELL_FREE_NON_NULL(NextCommandLine
);
1595 return (EFI_OUT_OF_RESOURCES
);
1596 } else if (StrStr(OurCommandLine
, L
"|") != NULL
|| Size1
== 0 || Size2
== 0) {
1597 SHELL_FREE_NON_NULL(OurCommandLine
);
1598 SHELL_FREE_NON_NULL(NextCommandLine
);
1599 return (EFI_INVALID_PARAMETER
);
1600 } else if (NextCommandLine
[0] != CHAR_NULL
&&
1601 NextCommandLine
[0] == L
'a' &&
1602 NextCommandLine
[1] == L
' '
1604 CopyMem(NextCommandLine
, NextCommandLine
+1, StrSize(NextCommandLine
) - sizeof(NextCommandLine
[0]));
1612 // make a SPLIT_LIST item and add to list
1614 Split
= AllocateZeroPool(sizeof(SPLIT_LIST
));
1615 ASSERT(Split
!= NULL
);
1616 Split
->SplitStdIn
= StdIn
;
1617 Split
->SplitStdOut
= ConvertEfiFileProtocolToShellHandle(CreateFileInterfaceMem(Unicode
), NULL
);
1618 ASSERT(Split
->SplitStdOut
!= NULL
);
1619 InsertHeadList(&ShellInfoObject
.SplitList
.Link
, &Split
->Link
);
1621 Status
= RunCommand(OurCommandLine
);
1624 // move the output from the first to the in to the second.
1626 TempFileHandle
= Split
->SplitStdOut
;
1627 if (Split
->SplitStdIn
== StdIn
) {
1628 Split
->SplitStdOut
= NULL
;
1630 Split
->SplitStdOut
= Split
->SplitStdIn
;
1632 Split
->SplitStdIn
= TempFileHandle
;
1633 ShellInfoObject
.NewEfiShellProtocol
->SetFilePosition(ConvertShellHandleToEfiFileProtocol(Split
->SplitStdIn
), 0);
1635 if (!EFI_ERROR(Status
)) {
1636 Status
= RunCommand(NextCommandLine
);
1640 // remove the top level from the ScriptList
1642 ASSERT((SPLIT_LIST
*)GetFirstNode(&ShellInfoObject
.SplitList
.Link
) == Split
);
1643 RemoveEntryList(&Split
->Link
);
1646 // Note that the original StdIn is now the StdOut...
1648 if (Split
->SplitStdOut
!= NULL
&& Split
->SplitStdOut
!= StdIn
) {
1649 ShellInfoObject
.NewEfiShellProtocol
->CloseFile(ConvertShellHandleToEfiFileProtocol(Split
->SplitStdOut
));
1651 if (Split
->SplitStdIn
!= NULL
) {
1652 ShellInfoObject
.NewEfiShellProtocol
->CloseFile(ConvertShellHandleToEfiFileProtocol(Split
->SplitStdIn
));
1656 FreePool(NextCommandLine
);
1657 FreePool(OurCommandLine
);
1663 Take the original command line, substitute any variables, free
1664 the original string, return the modified copy.
1666 @param[in] CmdLine pointer to the command line to update.
1668 @retval EFI_SUCCESS the function was successful.
1669 @retval EFI_OUT_OF_RESOURCES a memory allocation failed.
1673 ShellSubstituteVariables(
1678 NewCmdLine
= ShellConvertVariables(*CmdLine
);
1679 SHELL_FREE_NON_NULL(*CmdLine
);
1680 if (NewCmdLine
== NULL
) {
1681 return (EFI_OUT_OF_RESOURCES
);
1683 *CmdLine
= NewCmdLine
;
1684 return (EFI_SUCCESS
);
1688 Take the original command line, substitute any alias in the first group of space delimited characters, free
1689 the original string, return the modified copy.
1691 @param[in] CmdLine pointer to the command line to update.
1693 @retval EFI_SUCCESS the function was successful.
1694 @retval EFI_OUT_OF_RESOURCES a memory allocation failed.
1698 ShellSubstituteAliases(
1703 CHAR16
*CommandName
;
1705 UINTN PostAliasSize
;
1706 ASSERT(CmdLine
!= NULL
);
1707 ASSERT(*CmdLine
!= NULL
);
1711 if (StrStr((*CmdLine
), L
" ") == NULL
){
1712 StrnCatGrow(&CommandName
, NULL
, (*CmdLine
), 0);
1714 StrnCatGrow(&CommandName
, NULL
, (*CmdLine
), StrStr((*CmdLine
), L
" ") - (*CmdLine
));
1718 // This cannot happen 'inline' since the CmdLine can need extra space.
1721 if (!ShellCommandIsCommandOnList(CommandName
)) {
1723 // Convert via alias
1725 Status
= ShellConvertAlias(&CommandName
);
1726 if (EFI_ERROR(Status
)){
1730 NewCmdLine
= StrnCatGrow(&NewCmdLine
, &PostAliasSize
, CommandName
, 0);
1731 if (NewCmdLine
== NULL
) {
1732 SHELL_FREE_NON_NULL(CommandName
);
1733 SHELL_FREE_NON_NULL(*CmdLine
);
1734 return (EFI_OUT_OF_RESOURCES
);
1736 NewCmdLine
= StrnCatGrow(&NewCmdLine
, &PostAliasSize
, StrStr((*CmdLine
), L
" "), 0);
1737 if (NewCmdLine
== NULL
) {
1738 SHELL_FREE_NON_NULL(CommandName
);
1739 SHELL_FREE_NON_NULL(*CmdLine
);
1740 return (EFI_OUT_OF_RESOURCES
);
1743 NewCmdLine
= StrnCatGrow(&NewCmdLine
, NULL
, (*CmdLine
), 0);
1746 SHELL_FREE_NON_NULL(*CmdLine
);
1747 SHELL_FREE_NON_NULL(CommandName
);
1750 // re-assign the passed in double pointer to point to our newly allocated buffer
1752 *CmdLine
= NewCmdLine
;
1754 return (EFI_SUCCESS
);
1758 Takes the Argv[0] part of the command line and determine the meaning of it.
1760 @param[in] CmdName pointer to the command line to update.
1762 @retval Internal_Command The name is an internal command.
1763 @retval File_Sys_Change the name is a file system change.
1764 @retval Script_File_Name the name is a NSH script file.
1765 @retval Unknown_Invalid the name is unknown.
1766 @retval Efi_Application the name is an application (.EFI).
1768 SHELL_OPERATION_TYPES
1771 IN CONST CHAR16
*CmdName
1774 CHAR16
* FileWithPath
;
1775 CONST CHAR16
* TempLocation
;
1776 CONST CHAR16
* TempLocation2
;
1778 FileWithPath
= NULL
;
1780 // test for an internal command.
1782 if (ShellCommandIsCommandOnList(CmdName
)) {
1783 return (Internal_Command
);
1787 // Test for file system change request. anything ending with first : and cant have spaces.
1789 if (CmdName
[(StrLen(CmdName
)-1)] == L
':') {
1790 if ( StrStr(CmdName
, L
" ") != NULL
1791 || StrLen(StrStr(CmdName
, L
":")) > 1
1793 return (Unknown_Invalid
);
1795 return (File_Sys_Change
);
1801 if ((FileWithPath
= ShellFindFilePathEx(CmdName
, mExecutableExtensions
)) != NULL
) {
1803 // See if that file has a script file extension
1805 if (StrLen(FileWithPath
) > 4) {
1806 TempLocation
= FileWithPath
+StrLen(FileWithPath
)-4;
1807 TempLocation2
= mScriptExtension
;
1808 if (StringNoCaseCompare((VOID
*)(&TempLocation
), (VOID
*)(&TempLocation2
)) == 0) {
1809 SHELL_FREE_NON_NULL(FileWithPath
);
1810 return (Script_File_Name
);
1815 // Was a file, but not a script. we treat this as an application.
1817 SHELL_FREE_NON_NULL(FileWithPath
);
1818 return (Efi_Application
);
1821 SHELL_FREE_NON_NULL(FileWithPath
);
1823 // No clue what this is... return invalid flag...
1825 return (Unknown_Invalid
);
1829 Determine if the first item in a command line is valid.
1831 @param[in] CmdLine The command line to parse.
1833 @retval EFI_SUCCESS The item is valid.
1834 @retval EFI_OUT_OF_RESOURCES A memory allocation failed.
1835 @retval EFI_NOT_FOUND The operation type is unknown or invalid.
1840 IN CONST CHAR16
*CmdLine
1844 CHAR16
*FirstParameter
;
1850 Temp
= StrnCatGrow(&Temp
, NULL
, CmdLine
, 0);
1852 return (EFI_OUT_OF_RESOURCES
);
1855 FirstParameter
= StrStr(Temp
, L
"|");
1856 if (FirstParameter
!= NULL
) {
1857 *FirstParameter
= CHAR_NULL
;
1860 FirstParameter
= NULL
;
1863 // Process the command line
1865 Status
= ProcessCommandLineToFinal(&Temp
);
1867 if (!EFI_ERROR(Status
)) {
1868 FirstParameter
= AllocateZeroPool(StrSize(CmdLine
));
1869 if (FirstParameter
== NULL
) {
1870 SHELL_FREE_NON_NULL(Temp
);
1871 return (EFI_OUT_OF_RESOURCES
);
1873 TempWalker
= (CHAR16
*)Temp
;
1874 GetNextParameter(&TempWalker
, &FirstParameter
, StrSize(CmdLine
));
1876 if (GetOperationType(FirstParameter
) == Unknown_Invalid
) {
1877 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_NOT_FOUND
), ShellInfoObject
.HiiHandle
, FirstParameter
);
1878 SetLastError(SHELL_NOT_FOUND
);
1879 Status
= EFI_NOT_FOUND
;
1883 SHELL_FREE_NON_NULL(Temp
);
1884 SHELL_FREE_NON_NULL(FirstParameter
);
1889 Determine if a command line contains with a split contains only valid commands.
1891 @param[in] CmdLine The command line to parse.
1893 @retval EFI_SUCCESS CmdLine has only valid commands, application, or has no split.
1894 @retval EFI_ABORTED CmdLine has at least one invalid command or application.
1899 IN CONST CHAR16
*CmdLine
1902 CONST CHAR16
*TempSpot
;
1906 // Verify up to the pipe or end character
1908 Status
= IsValidSplit(CmdLine
);
1909 if (EFI_ERROR(Status
)) {
1914 // If this was the only item, then get out
1916 if (!ContainsSplit(CmdLine
)) {
1917 return (EFI_SUCCESS
);
1921 // recurse to verify the next item
1923 TempSpot
= FindSplit(CmdLine
)+1;
1924 return (VerifySplit(TempSpot
));
1928 Process a split based operation.
1930 @param[in] CmdLine pointer to the command line to process
1932 @retval EFI_SUCCESS The operation was successful
1933 @return an error occured.
1937 ProcessNewSplitCommandLine(
1938 IN CONST CHAR16
*CmdLine
1944 Status
= VerifySplit(CmdLine
);
1945 if (EFI_ERROR(Status
)) {
1952 // are we in an existing split???
1954 if (!IsListEmpty(&ShellInfoObject
.SplitList
.Link
)) {
1955 Split
= (SPLIT_LIST
*)GetFirstNode(&ShellInfoObject
.SplitList
.Link
);
1958 if (Split
== NULL
) {
1959 Status
= RunSplitCommand(CmdLine
, NULL
, NULL
);
1961 Status
= RunSplitCommand(CmdLine
, Split
->SplitStdIn
, Split
->SplitStdOut
);
1963 if (EFI_ERROR(Status
)) {
1964 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_INVALID_SPLIT
), ShellInfoObject
.HiiHandle
, CmdLine
);
1970 Handle a request to change the current file system.
1972 @param[in] CmdLine The passed in command line.
1974 @retval EFI_SUCCESS The operation was successful.
1979 IN CONST CHAR16
*CmdLine
1983 Status
= EFI_SUCCESS
;
1986 // make sure we are the right operation
1988 ASSERT(CmdLine
[(StrLen(CmdLine
)-1)] == L
':' && StrStr(CmdLine
, L
" ") == NULL
);
1991 // Call the protocol API to do the work
1993 Status
= ShellInfoObject
.NewEfiShellProtocol
->SetCurDir(NULL
, CmdLine
);
1996 // Report any errors
1998 if (EFI_ERROR(Status
)) {
1999 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_INVALID_MAPPING
), ShellInfoObject
.HiiHandle
, CmdLine
);
2006 Reprocess the command line to direct all -? to the help command.
2008 if found, will add "help" as argv[0], and move the rest later.
2010 @param[in,out] CmdLine pointer to the command line to update
2015 IN OUT CHAR16
**CmdLine
2018 CHAR16
*CurrentParameter
;
2021 CHAR16
*NewCommandLine
;
2024 Status
= EFI_SUCCESS
;
2026 CurrentParameter
= AllocateZeroPool(StrSize(*CmdLine
));
2027 if (CurrentParameter
== NULL
) {
2028 return (EFI_OUT_OF_RESOURCES
);
2032 while(Walker
!= NULL
&& *Walker
!= CHAR_NULL
) {
2033 LastWalker
= Walker
;
2034 GetNextParameter(&Walker
, &CurrentParameter
, StrSize(*CmdLine
));
2035 if (StrStr(CurrentParameter
, L
"-?") == CurrentParameter
) {
2036 LastWalker
[0] = L
' ';
2037 LastWalker
[1] = L
' ';
2038 NewCommandLine
= AllocateZeroPool(StrSize(L
"help ") + StrSize(*CmdLine
));
2039 if (NewCommandLine
== NULL
) {
2040 Status
= EFI_OUT_OF_RESOURCES
;
2045 // We know the space is sufficient since we just calculated it.
2047 StrnCpy(NewCommandLine
, L
"help ", 5);
2048 StrnCat(NewCommandLine
, *CmdLine
, StrLen(*CmdLine
));
2049 SHELL_FREE_NON_NULL(*CmdLine
);
2050 *CmdLine
= NewCommandLine
;
2055 SHELL_FREE_NON_NULL(CurrentParameter
);
2061 Function to update the shell variable "lasterror".
2063 @param[in] ErrorCode the error code to put into lasterror.
2068 IN CONST SHELL_STATUS ErrorCode
2071 CHAR16 LeString
[19];
2072 if (sizeof(EFI_STATUS
) == sizeof(UINT64
)) {
2073 UnicodeSPrint(LeString
, sizeof(LeString
), L
"0x%Lx", ErrorCode
);
2075 UnicodeSPrint(LeString
, sizeof(LeString
), L
"0x%x", ErrorCode
);
2077 DEBUG_CODE(InternalEfiShellSetEnv(L
"debuglasterror", LeString
, TRUE
););
2078 InternalEfiShellSetEnv(L
"lasterror", LeString
, TRUE
);
2080 return (EFI_SUCCESS
);
2084 Converts the command line to it's post-processed form. this replaces variables and alias' per UEFI Shell spec.
2086 @param[in,out] CmdLine pointer to the command line to update
2088 @retval EFI_SUCCESS The operation was successful
2089 @retval EFI_OUT_OF_RESOURCES A memory allocation failed.
2090 @return some other error occured
2094 ProcessCommandLineToFinal(
2095 IN OUT CHAR16
**CmdLine
2099 TrimSpaces(CmdLine
);
2101 Status
= ShellSubstituteAliases(CmdLine
);
2102 if (EFI_ERROR(Status
)) {
2106 TrimSpaces(CmdLine
);
2108 Status
= ShellSubstituteVariables(CmdLine
);
2109 if (EFI_ERROR(Status
)) {
2112 ASSERT (*CmdLine
!= NULL
);
2114 TrimSpaces(CmdLine
);
2117 // update for help parsing
2119 if (StrStr(*CmdLine
, L
"?") != NULL
) {
2121 // This may do nothing if the ? does not indicate help.
2122 // Save all the details for in the API below.
2124 Status
= DoHelpUpdate(CmdLine
);
2127 TrimSpaces(CmdLine
);
2129 return (EFI_SUCCESS
);
2133 Run an internal shell command.
2135 This API will upadate the shell's environment since these commands are libraries.
2137 @param[in] CmdLine the command line to run.
2138 @param[in] FirstParameter the first parameter on the command line
2139 @param[in] ParamProtocol the shell parameters protocol pointer
2141 @retval EFI_SUCCESS The command was completed.
2142 @retval EFI_ABORTED The command's operation was aborted.
2147 IN CONST CHAR16
*CmdLine
,
2148 IN CHAR16
*FirstParameter
,
2149 IN EFI_SHELL_PARAMETERS_PROTOCOL
*ParamProtocol
2155 SHELL_STATUS CommandReturnedStatus
;
2160 NewCmdLine
= AllocateCopyPool (StrSize (CmdLine
), CmdLine
);
2161 if (NewCmdLine
== NULL
) {
2162 return EFI_OUT_OF_RESOURCES
;
2165 for (Walker
= NewCmdLine
; Walker
!= NULL
&& *Walker
!= CHAR_NULL
; Walker
++) {
2166 if (*Walker
== L
'^' && *(Walker
+1) == L
'#') {
2167 CopyMem(Walker
, Walker
+1, StrSize(Walker
) - sizeof(Walker
[0]));
2172 // get the argc and argv updated for internal commands
2174 Status
= UpdateArgcArgv(ParamProtocol
, NewCmdLine
, &Argv
, &Argc
);
2175 if (!EFI_ERROR(Status
)) {
2177 // Run the internal command.
2179 Status
= ShellCommandRunCommandHandler(FirstParameter
, &CommandReturnedStatus
, &LastError
);
2181 if (!EFI_ERROR(Status
)) {
2183 // Update last error status.
2184 // some commands do not update last error.
2187 SetLastError(CommandReturnedStatus
);
2191 // Pass thru the exitcode from the app.
2193 if (ShellCommandGetExit()) {
2195 // An Exit was requested ("exit" command), pass its value up.
2197 Status
= CommandReturnedStatus
;
2198 } else if (CommandReturnedStatus
!= SHELL_SUCCESS
&& IsScriptOnlyCommand(FirstParameter
)) {
2200 // Always abort when a script only command fails for any reason
2202 Status
= EFI_ABORTED
;
2203 } else if (ShellCommandGetCurrentScriptFile() != NULL
&& CommandReturnedStatus
== SHELL_ABORTED
) {
2205 // Abort when in a script and a command aborted
2207 Status
= EFI_ABORTED
;
2213 // This is guarenteed to be called after UpdateArgcArgv no matter what else happened.
2214 // This is safe even if the update API failed. In this case, it may be a no-op.
2216 RestoreArgcArgv(ParamProtocol
, &Argv
, &Argc
);
2219 // If a script is running and the command is not a scipt only command, then
2220 // change return value to success so the script won't halt (unless aborted).
2222 // Script only commands have to be able halt the script since the script will
2223 // not operate if they are failing.
2225 if ( ShellCommandGetCurrentScriptFile() != NULL
2226 && !IsScriptOnlyCommand(FirstParameter
)
2227 && Status
!= EFI_ABORTED
2229 Status
= EFI_SUCCESS
;
2232 FreePool (NewCmdLine
);
2237 Function to run the command or file.
2239 @param[in] Type the type of operation being run.
2240 @param[in] CmdLine the command line to run.
2241 @param[in] FirstParameter the first parameter on the command line
2242 @param[in] ParamProtocol the shell parameters protocol pointer
2244 @retval EFI_SUCCESS The command was completed.
2245 @retval EFI_ABORTED The command's operation was aborted.
2250 IN SHELL_OPERATION_TYPES Type
,
2251 IN CONST CHAR16
*CmdLine
,
2252 IN CHAR16
*FirstParameter
,
2253 IN EFI_SHELL_PARAMETERS_PROTOCOL
*ParamProtocol
2257 EFI_STATUS StartStatus
;
2258 CHAR16
*CommandWithPath
;
2259 EFI_DEVICE_PATH_PROTOCOL
*DevPath
;
2260 SHELL_STATUS CalleeExitStatus
;
2262 Status
= EFI_SUCCESS
;
2263 CommandWithPath
= NULL
;
2265 CalleeExitStatus
= SHELL_INVALID_PARAMETER
;
2268 case Internal_Command
:
2269 Status
= RunInternalCommand(CmdLine
, FirstParameter
, ParamProtocol
);
2271 case Script_File_Name
:
2272 case Efi_Application
:
2274 // Process a fully qualified path
2276 if (StrStr(FirstParameter
, L
":") != NULL
) {
2277 ASSERT (CommandWithPath
== NULL
);
2278 if (ShellIsFile(FirstParameter
) == EFI_SUCCESS
) {
2279 CommandWithPath
= StrnCatGrow(&CommandWithPath
, NULL
, FirstParameter
, 0);
2284 // Process a relative path and also check in the path environment variable
2286 if (CommandWithPath
== NULL
) {
2287 CommandWithPath
= ShellFindFilePathEx(FirstParameter
, mExecutableExtensions
);
2291 // This should be impossible now.
2293 ASSERT(CommandWithPath
!= NULL
);
2296 // Make sure that path is not just a directory (or not found)
2298 if (!EFI_ERROR(ShellIsDirectory(CommandWithPath
))) {
2299 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_NOT_FOUND
), ShellInfoObject
.HiiHandle
, FirstParameter
);
2300 SetLastError(SHELL_NOT_FOUND
);
2303 case Script_File_Name
:
2304 Status
= RunScriptFile (CommandWithPath
, NULL
, CmdLine
, ParamProtocol
);
2306 case Efi_Application
:
2308 // Get the device path of the application image
2310 DevPath
= ShellInfoObject
.NewEfiShellProtocol
->GetDevicePathFromFilePath(CommandWithPath
);
2311 if (DevPath
== NULL
){
2312 Status
= EFI_OUT_OF_RESOURCES
;
2317 // Execute the device path
2319 Status
= InternalShellExecuteDevicePath(
2327 SHELL_FREE_NON_NULL(DevPath
);
2329 if(EFI_ERROR (Status
)) {
2330 CalleeExitStatus
= (SHELL_STATUS
) (Status
& (~MAX_BIT
));
2332 CalleeExitStatus
= (SHELL_STATUS
) StartStatus
;
2336 // Update last error status.
2338 // Status is an EFI_STATUS. Clear top bit to convert to SHELL_STATUS
2339 SetLastError(CalleeExitStatus
);
2355 SHELL_FREE_NON_NULL(CommandWithPath
);
2361 Function to setup StdIn, StdErr, StdOut, and then run the command or file.
2363 @param[in] Type the type of operation being run.
2364 @param[in] CmdLine the command line to run.
2365 @param[in] FirstParameter the first parameter on the command line.
2366 @param[in] ParamProtocol the shell parameters protocol pointer
2368 @retval EFI_SUCCESS The command was completed.
2369 @retval EFI_ABORTED The command's operation was aborted.
2373 SetupAndRunCommandOrFile(
2374 IN SHELL_OPERATION_TYPES Type
,
2376 IN CHAR16
*FirstParameter
,
2377 IN EFI_SHELL_PARAMETERS_PROTOCOL
*ParamProtocol
2381 SHELL_FILE_HANDLE OriginalStdIn
;
2382 SHELL_FILE_HANDLE OriginalStdOut
;
2383 SHELL_FILE_HANDLE OriginalStdErr
;
2384 SYSTEM_TABLE_INFO OriginalSystemTableInfo
;
2387 // Update the StdIn, StdOut, and StdErr for redirection to environment variables, files, etc... unicode and ASCII
2389 Status
= UpdateStdInStdOutStdErr(ParamProtocol
, CmdLine
, &OriginalStdIn
, &OriginalStdOut
, &OriginalStdErr
, &OriginalSystemTableInfo
);
2392 // The StdIn, StdOut, and StdErr are set up.
2393 // Now run the command, script, or application
2395 if (!EFI_ERROR(Status
)) {
2396 TrimSpaces(&CmdLine
);
2397 Status
= RunCommandOrFile(Type
, CmdLine
, FirstParameter
, ParamProtocol
);
2403 if (EFI_ERROR(Status
)) {
2404 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_ERROR
), ShellInfoObject
.HiiHandle
, (VOID
*)(Status
));
2408 // put back the original StdIn, StdOut, and StdErr
2410 RestoreStdInStdOutStdErr(ParamProtocol
, &OriginalStdIn
, &OriginalStdOut
, &OriginalStdErr
, &OriginalSystemTableInfo
);
2416 Function will process and run a command line.
2418 This will determine if the command line represents an internal shell
2419 command or dispatch an external application.
2421 @param[in] CmdLine The command line to parse.
2423 @retval EFI_SUCCESS The command was completed.
2424 @retval EFI_ABORTED The command's operation was aborted.
2429 IN CONST CHAR16
*CmdLine
2433 CHAR16
*CleanOriginal
;
2434 CHAR16
*FirstParameter
;
2436 SHELL_OPERATION_TYPES Type
;
2438 ASSERT(CmdLine
!= NULL
);
2439 if (StrLen(CmdLine
) == 0) {
2440 return (EFI_SUCCESS
);
2443 Status
= EFI_SUCCESS
;
2444 CleanOriginal
= NULL
;
2446 CleanOriginal
= StrnCatGrow(&CleanOriginal
, NULL
, CmdLine
, 0);
2447 if (CleanOriginal
== NULL
) {
2448 return (EFI_OUT_OF_RESOURCES
);
2451 TrimSpaces(&CleanOriginal
);
2454 // NULL out comments (leveraged from RunScriptFileHandle() ).
2455 // The # character on a line is used to denote that all characters on the same line
2456 // and to the right of the # are to be ignored by the shell.
2457 // Afterward, again remove spaces, in case any were between the last command-parameter and '#'.
2459 for (TempWalker
= CleanOriginal
; TempWalker
!= NULL
&& *TempWalker
!= CHAR_NULL
; TempWalker
++) {
2460 if (*TempWalker
== L
'^') {
2461 if (*(TempWalker
+ 1) == L
'#') {
2464 } else if (*TempWalker
== L
'#') {
2465 *TempWalker
= CHAR_NULL
;
2469 TrimSpaces(&CleanOriginal
);
2472 // Handle case that passed in command line is just 1 or more " " characters.
2474 if (StrLen (CleanOriginal
) == 0) {
2475 SHELL_FREE_NON_NULL(CleanOriginal
);
2476 return (EFI_SUCCESS
);
2479 Status
= ProcessCommandLineToFinal(&CleanOriginal
);
2480 if (EFI_ERROR(Status
)) {
2481 SHELL_FREE_NON_NULL(CleanOriginal
);
2486 // We dont do normal processing with a split command line (output from one command input to another)
2488 if (ContainsSplit(CleanOriginal
)) {
2489 Status
= ProcessNewSplitCommandLine(CleanOriginal
);
2490 SHELL_FREE_NON_NULL(CleanOriginal
);
2495 // We need the first parameter information so we can determine the operation type
2497 FirstParameter
= AllocateZeroPool(StrSize(CleanOriginal
));
2498 if (FirstParameter
== NULL
) {
2499 SHELL_FREE_NON_NULL(CleanOriginal
);
2500 return (EFI_OUT_OF_RESOURCES
);
2502 TempWalker
= CleanOriginal
;
2503 GetNextParameter(&TempWalker
, &FirstParameter
, StrSize(CleanOriginal
));
2506 // Depending on the first parameter we change the behavior
2508 switch (Type
= GetOperationType(FirstParameter
)) {
2509 case File_Sys_Change
:
2510 Status
= ChangeMappedDrive (FirstParameter
);
2512 case Internal_Command
:
2513 case Script_File_Name
:
2514 case Efi_Application
:
2515 Status
= SetupAndRunCommandOrFile(Type
, CleanOriginal
, FirstParameter
, ShellInfoObject
.NewShellParametersProtocol
);
2519 // Whatever was typed, it was invalid.
2521 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_NOT_FOUND
), ShellInfoObject
.HiiHandle
, FirstParameter
);
2522 SetLastError(SHELL_NOT_FOUND
);
2526 SHELL_FREE_NON_NULL(CleanOriginal
);
2527 SHELL_FREE_NON_NULL(FirstParameter
);
2532 STATIC CONST UINT16 InvalidChars
[] = {L
'*', L
'?', L
'<', L
'>', L
'\\', L
'/', L
'\"', 0x0001, 0x0002};
2534 Function determins if the CommandName COULD be a valid command. It does not determine whether
2535 this is a valid command. It only checks for invalid characters.
2537 @param[in] CommandName The name to check
2539 @retval TRUE CommandName could be a command name
2540 @retval FALSE CommandName could not be a valid command name
2545 IN CONST CHAR16
*CommandName
2549 if (CommandName
== NULL
) {
2554 ; Count
< sizeof(InvalidChars
) / sizeof(InvalidChars
[0])
2557 if (ScanMem16(CommandName
, StrSize(CommandName
), InvalidChars
[Count
]) != NULL
) {
2565 Function to process a NSH script file via SHELL_FILE_HANDLE.
2567 @param[in] Handle The handle to the already opened file.
2568 @param[in] Name The name of the script file.
2570 @retval EFI_SUCCESS the script completed sucessfully
2574 RunScriptFileHandle (
2575 IN SHELL_FILE_HANDLE Handle
,
2576 IN CONST CHAR16
*Name
2580 SCRIPT_FILE
*NewScriptFile
;
2582 CHAR16
*CommandLine
;
2583 CHAR16
*CommandLine2
;
2584 CHAR16
*CommandLine3
;
2585 SCRIPT_COMMAND_LIST
*LastCommand
;
2587 BOOLEAN PreScriptEchoState
;
2588 BOOLEAN PreCommandEchoState
;
2589 CONST CHAR16
*CurDir
;
2591 CHAR16 LeString
[50];
2593 ASSERT(!ShellCommandGetScriptExit());
2595 PreScriptEchoState
= ShellCommandGetEchoState();
2597 NewScriptFile
= (SCRIPT_FILE
*)AllocateZeroPool(sizeof(SCRIPT_FILE
));
2598 if (NewScriptFile
== NULL
) {
2599 return (EFI_OUT_OF_RESOURCES
);
2605 ASSERT(NewScriptFile
->ScriptName
== NULL
);
2606 NewScriptFile
->ScriptName
= StrnCatGrow(&NewScriptFile
->ScriptName
, NULL
, Name
, 0);
2607 if (NewScriptFile
->ScriptName
== NULL
) {
2608 DeleteScriptFileStruct(NewScriptFile
);
2609 return (EFI_OUT_OF_RESOURCES
);
2613 // Save the parameters (used to replace %0 to %9 later on)
2615 NewScriptFile
->Argc
= ShellInfoObject
.NewShellParametersProtocol
->Argc
;
2616 if (NewScriptFile
->Argc
!= 0) {
2617 NewScriptFile
->Argv
= (CHAR16
**)AllocateZeroPool(NewScriptFile
->Argc
* sizeof(CHAR16
*));
2618 if (NewScriptFile
->Argv
== NULL
) {
2619 DeleteScriptFileStruct(NewScriptFile
);
2620 return (EFI_OUT_OF_RESOURCES
);
2622 for (LoopVar
= 0 ; LoopVar
< 10 && LoopVar
< NewScriptFile
->Argc
; LoopVar
++) {
2623 ASSERT(NewScriptFile
->Argv
[LoopVar
] == NULL
);
2624 NewScriptFile
->Argv
[LoopVar
] = StrnCatGrow(&NewScriptFile
->Argv
[LoopVar
], NULL
, ShellInfoObject
.NewShellParametersProtocol
->Argv
[LoopVar
], 0);
2625 if (NewScriptFile
->Argv
[LoopVar
] == NULL
) {
2626 DeleteScriptFileStruct(NewScriptFile
);
2627 return (EFI_OUT_OF_RESOURCES
);
2631 NewScriptFile
->Argv
= NULL
;
2634 InitializeListHead(&NewScriptFile
->CommandList
);
2635 InitializeListHead(&NewScriptFile
->SubstList
);
2638 // Now build the list of all script commands.
2641 while(!ShellFileHandleEof(Handle
)) {
2642 CommandLine
= ShellFileHandleReturnLine(Handle
, &Ascii
);
2644 if (CommandLine
== NULL
|| StrLen(CommandLine
) == 0 || CommandLine
[0] == '#') {
2645 SHELL_FREE_NON_NULL(CommandLine
);
2648 NewScriptFile
->CurrentCommand
= AllocateZeroPool(sizeof(SCRIPT_COMMAND_LIST
));
2649 if (NewScriptFile
->CurrentCommand
== NULL
) {
2650 SHELL_FREE_NON_NULL(CommandLine
);
2651 DeleteScriptFileStruct(NewScriptFile
);
2652 return (EFI_OUT_OF_RESOURCES
);
2655 NewScriptFile
->CurrentCommand
->Cl
= CommandLine
;
2656 NewScriptFile
->CurrentCommand
->Data
= NULL
;
2657 NewScriptFile
->CurrentCommand
->Line
= LineCount
;
2659 InsertTailList(&NewScriptFile
->CommandList
, &NewScriptFile
->CurrentCommand
->Link
);
2663 // Add this as the topmost script file
2665 ShellCommandSetNewScript (NewScriptFile
);
2668 // Now enumerate through the commands and run each one.
2670 CommandLine
= AllocateZeroPool(PcdGet16(PcdShellPrintBufferSize
));
2671 if (CommandLine
== NULL
) {
2672 DeleteScriptFileStruct(NewScriptFile
);
2673 return (EFI_OUT_OF_RESOURCES
);
2675 CommandLine2
= AllocateZeroPool(PcdGet16(PcdShellPrintBufferSize
));
2676 if (CommandLine2
== NULL
) {
2677 FreePool(CommandLine
);
2678 DeleteScriptFileStruct(NewScriptFile
);
2679 return (EFI_OUT_OF_RESOURCES
);
2682 for ( NewScriptFile
->CurrentCommand
= (SCRIPT_COMMAND_LIST
*)GetFirstNode(&NewScriptFile
->CommandList
)
2683 ; !IsNull(&NewScriptFile
->CommandList
, &NewScriptFile
->CurrentCommand
->Link
)
2684 ; // conditional increment in the body of the loop
2686 ASSERT(CommandLine2
!= NULL
);
2687 StrnCpy(CommandLine2
, NewScriptFile
->CurrentCommand
->Cl
, PcdGet16(PcdShellPrintBufferSize
)/sizeof(CHAR16
)-1);
2690 // NULL out comments
2692 for (CommandLine3
= CommandLine2
; CommandLine3
!= NULL
&& *CommandLine3
!= CHAR_NULL
; CommandLine3
++) {
2693 if (*CommandLine3
== L
'^') {
2694 if ( *(CommandLine3
+1) == L
':') {
2695 CopyMem(CommandLine3
, CommandLine3
+1, StrSize(CommandLine3
) - sizeof(CommandLine3
[0]));
2696 } else if (*(CommandLine3
+1) == L
'#') {
2699 } else if (*CommandLine3
== L
'#') {
2700 *CommandLine3
= CHAR_NULL
;
2704 if (CommandLine2
!= NULL
&& StrLen(CommandLine2
) >= 1) {
2706 // Due to variability in starting the find and replace action we need to have both buffers the same.
2708 StrnCpy(CommandLine
, CommandLine2
, PcdGet16(PcdShellPrintBufferSize
)/sizeof(CHAR16
)-1);
2711 // Remove the %0 to %9 from the command line (if we have some arguments)
2713 if (NewScriptFile
->Argv
!= NULL
) {
2714 switch (NewScriptFile
->Argc
) {
2716 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%9", NewScriptFile
->Argv
[9], FALSE
, FALSE
);
2717 ASSERT_EFI_ERROR(Status
);
2719 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%8", NewScriptFile
->Argv
[8], FALSE
, FALSE
);
2720 ASSERT_EFI_ERROR(Status
);
2722 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%7", NewScriptFile
->Argv
[7], FALSE
, FALSE
);
2723 ASSERT_EFI_ERROR(Status
);
2725 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%6", NewScriptFile
->Argv
[6], FALSE
, FALSE
);
2726 ASSERT_EFI_ERROR(Status
);
2728 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%5", NewScriptFile
->Argv
[5], FALSE
, FALSE
);
2729 ASSERT_EFI_ERROR(Status
);
2731 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%4", NewScriptFile
->Argv
[4], FALSE
, FALSE
);
2732 ASSERT_EFI_ERROR(Status
);
2734 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%3", NewScriptFile
->Argv
[3], FALSE
, FALSE
);
2735 ASSERT_EFI_ERROR(Status
);
2737 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%2", NewScriptFile
->Argv
[2], FALSE
, FALSE
);
2738 ASSERT_EFI_ERROR(Status
);
2740 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%1", NewScriptFile
->Argv
[1], FALSE
, FALSE
);
2741 ASSERT_EFI_ERROR(Status
);
2743 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%0", NewScriptFile
->Argv
[0], FALSE
, FALSE
);
2744 ASSERT_EFI_ERROR(Status
);
2750 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%1", L
"\"\"", FALSE
, FALSE
);
2751 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%2", L
"\"\"", FALSE
, FALSE
);
2752 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%3", L
"\"\"", FALSE
, FALSE
);
2753 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%4", L
"\"\"", FALSE
, FALSE
);
2754 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%5", L
"\"\"", FALSE
, FALSE
);
2755 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%6", L
"\"\"", FALSE
, FALSE
);
2756 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%7", L
"\"\"", FALSE
, FALSE
);
2757 Status
= ShellCopySearchAndReplace(CommandLine
, CommandLine2
, PcdGet16 (PcdShellPrintBufferSize
), L
"%8", L
"\"\"", FALSE
, FALSE
);
2758 Status
= ShellCopySearchAndReplace(CommandLine2
, CommandLine
, PcdGet16 (PcdShellPrintBufferSize
), L
"%9", L
"\"\"", FALSE
, FALSE
);
2760 StrnCpy(CommandLine2
, CommandLine
, PcdGet16(PcdShellPrintBufferSize
)/sizeof(CHAR16
)-1);
2762 LastCommand
= NewScriptFile
->CurrentCommand
;
2764 for (CommandLine3
= CommandLine2
; CommandLine3
[0] == L
' ' ; CommandLine3
++);
2766 if (CommandLine3
!= NULL
&& CommandLine3
[0] == L
':' ) {
2768 // This line is a goto target / label
2771 if (CommandLine3
!= NULL
&& StrLen(CommandLine3
) > 0) {
2772 if (CommandLine3
[0] == L
'@') {
2774 // We need to save the current echo state
2775 // and disable echo for just this command.
2777 PreCommandEchoState
= ShellCommandGetEchoState();
2778 ShellCommandSetEchoState(FALSE
);
2779 Status
= RunCommand(CommandLine3
+1);
2782 // If command was "@echo -off" or "@echo -on" then don't restore echo state
2784 if (StrCmp (L
"@echo -off", CommandLine3
) != 0 &&
2785 StrCmp (L
"@echo -on", CommandLine3
) != 0) {
2787 // Now restore the pre-'@' echo state.
2789 ShellCommandSetEchoState(PreCommandEchoState
);
2792 if (ShellCommandGetEchoState()) {
2793 CurDir
= ShellInfoObject
.NewEfiShellProtocol
->GetEnv(L
"cwd");
2794 if (CurDir
!= NULL
&& StrLen(CurDir
) > 1) {
2795 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_CURDIR
), ShellInfoObject
.HiiHandle
, CurDir
);
2797 ShellPrintHiiEx(-1, -1, NULL
, STRING_TOKEN (STR_SHELL_SHELL
), ShellInfoObject
.HiiHandle
);
2799 ShellPrintEx(-1, -1, L
"%s\r\n", CommandLine2
);
2801 Status
= RunCommand(CommandLine3
);
2805 if (ShellCommandGetScriptExit()) {
2807 // ShellCommandGetExitCode() always returns a UINT64
2809 UnicodeSPrint(LeString
, sizeof(LeString
), L
"0x%Lx", ShellCommandGetExitCode());
2810 DEBUG_CODE(InternalEfiShellSetEnv(L
"debuglasterror", LeString
, TRUE
););
2811 InternalEfiShellSetEnv(L
"lasterror", LeString
, TRUE
);
2813 ShellCommandRegisterExit(FALSE
, 0);
2814 Status
= EFI_SUCCESS
;
2817 if (ShellGetExecutionBreakFlag()) {
2820 if (EFI_ERROR(Status
)) {
2823 if (ShellCommandGetExit()) {
2828 // If that commend did not update the CurrentCommand then we need to advance it...
2830 if (LastCommand
== NewScriptFile
->CurrentCommand
) {
2831 NewScriptFile
->CurrentCommand
= (SCRIPT_COMMAND_LIST
*)GetNextNode(&NewScriptFile
->CommandList
, &NewScriptFile
->CurrentCommand
->Link
);
2832 if (!IsNull(&NewScriptFile
->CommandList
, &NewScriptFile
->CurrentCommand
->Link
)) {
2833 NewScriptFile
->CurrentCommand
->Reset
= TRUE
;
2837 NewScriptFile
->CurrentCommand
= (SCRIPT_COMMAND_LIST
*)GetNextNode(&NewScriptFile
->CommandList
, &NewScriptFile
->CurrentCommand
->Link
);
2838 if (!IsNull(&NewScriptFile
->CommandList
, &NewScriptFile
->CurrentCommand
->Link
)) {
2839 NewScriptFile
->CurrentCommand
->Reset
= TRUE
;
2845 FreePool(CommandLine
);
2846 FreePool(CommandLine2
);
2847 ShellCommandSetNewScript (NULL
);
2850 // Only if this was the last script reset the state.
2852 if (ShellCommandGetCurrentScriptFile()==NULL
) {
2853 ShellCommandSetEchoState(PreScriptEchoState
);
2855 return (EFI_SUCCESS
);
2859 Function to process a NSH script file.
2861 @param[in] ScriptPath Pointer to the script file name (including file system path).
2862 @param[in] Handle the handle of the script file already opened.
2863 @param[in] CmdLine the command line to run.
2864 @param[in] ParamProtocol the shell parameters protocol pointer
2866 @retval EFI_SUCCESS the script completed sucessfully
2871 IN CONST CHAR16
*ScriptPath
,
2872 IN SHELL_FILE_HANDLE Handle OPTIONAL
,
2873 IN CONST CHAR16
*CmdLine
,
2874 IN EFI_SHELL_PARAMETERS_PROTOCOL
*ParamProtocol
2878 SHELL_FILE_HANDLE FileHandle
;
2882 if (ShellIsFile(ScriptPath
) != EFI_SUCCESS
) {
2883 return (EFI_INVALID_PARAMETER
);
2887 // get the argc and argv updated for scripts
2889 Status
= UpdateArgcArgv(ParamProtocol
, CmdLine
, &Argv
, &Argc
);
2890 if (!EFI_ERROR(Status
)) {
2892 if (Handle
== NULL
) {
2896 Status
= ShellOpenFileByName(ScriptPath
, &FileHandle
, EFI_FILE_MODE_READ
, 0);
2897 if (!EFI_ERROR(Status
)) {
2901 Status
= RunScriptFileHandle(FileHandle
, ScriptPath
);
2904 // now close the file
2906 ShellCloseFile(&FileHandle
);
2909 Status
= RunScriptFileHandle(Handle
, ScriptPath
);
2914 // This is guarenteed to be called after UpdateArgcArgv no matter what else happened.
2915 // This is safe even if the update API failed. In this case, it may be a no-op.
2917 RestoreArgcArgv(ParamProtocol
, &Argv
, &Argc
);