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audk/ShellPkg/Library/UefiShellDebug1CommandsLib/DmpStore.c

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/** @file
Main file for DmpStore shell Debug1 function.
(C) Copyright 2013-2014, Hewlett-Packard Development Company, L.P.
Copyright (c) 2005 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include "UefiShellDebug1CommandsLib.h"
typedef enum {
DmpStoreDisplay,
DmpStoreDelete,
DmpStoreSave,
DmpStoreLoad
} DMP_STORE_TYPE;
typedef struct {
UINT32 Signature;
CHAR16 *Name;
EFI_GUID Guid;
UINT32 Attributes;
UINT32 DataSize;
UINT8 *Data;
LIST_ENTRY Link;
} DMP_STORE_VARIABLE;
#define DMP_STORE_VARIABLE_SIGNATURE SIGNATURE_32 ('_', 'd', 's', 's')
/**
Base on the input attribute value to return the attribute string.
@param[in] Atts The input attribute value
@retval The attribute string info.
**/
CHAR16 *
EFIAPI
GetAttrType (
IN CONST UINT32 Atts
)
{
UINTN BufLen;
CHAR16 *RetString;
BufLen = 0;
RetString = NULL;
if ((Atts & EFI_VARIABLE_NON_VOLATILE) != 0) {
StrnCatGrow (&RetString, &BufLen, L"+NV", 0);
}
if ((Atts & EFI_VARIABLE_RUNTIME_ACCESS) != 0) {
StrnCatGrow (&RetString, &BufLen, L"+RT+BS", 0);
} else if ((Atts & EFI_VARIABLE_BOOTSERVICE_ACCESS) != 0) {
StrnCatGrow (&RetString, &BufLen, L"+BS", 0);
}
if ((Atts & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != 0) {
StrnCatGrow (&RetString, &BufLen, L"+HR", 0);
}
if ((Atts & EFI_VARIABLE_AUTHENTICATED_WRITE_ACCESS) != 0) {
StrnCatGrow (&RetString, &BufLen, L"+AW", 0);
}
if ((Atts & EFI_VARIABLE_TIME_BASED_AUTHENTICATED_WRITE_ACCESS) != 0) {
StrnCatGrow (&RetString, &BufLen, L"+AT", 0);
}
if (RetString == NULL) {
RetString = StrnCatGrow(&RetString, &BufLen, L"Invalid", 0);
}
if ((RetString != NULL) && (RetString[0] == L'+')) {
CopyMem(RetString, RetString + 1, StrSize(RetString + 1));
}
return RetString;
}
/**
Load the variable data from file and set to variable data base.
@param[in] FileHandle The file to be read.
@param[in] Name The name of the variables to be loaded.
@param[in] Guid The guid of the variables to be loaded.
@param[out] Found TRUE when at least one variable was loaded and set.
@retval SHELL_DEVICE_ERROR Cannot access the file.
@retval SHELL_VOLUME_CORRUPTED The file is in bad format.
@retval SHELL_OUT_OF_RESOURCES There is not enough memory to perform the operation.
@retval SHELL_SUCCESS Successfully load and set the variables.
**/
SHELL_STATUS
LoadVariablesFromFile (
IN SHELL_FILE_HANDLE FileHandle,
IN CONST CHAR16 *Name,
IN CONST EFI_GUID *Guid,
OUT BOOLEAN *Found
)
{
EFI_STATUS Status;
SHELL_STATUS ShellStatus;
UINT32 NameSize;
UINT32 DataSize;
UINTN BufferSize;
UINTN RemainingSize;
UINT64 Position;
UINT64 FileSize;
LIST_ENTRY List;
DMP_STORE_VARIABLE *Variable;
LIST_ENTRY *Link;
CHAR16 *Attributes;
UINT8 *Buffer;
UINT32 Crc32;
Status = ShellGetFileSize (FileHandle, &FileSize);
if (EFI_ERROR (Status)) {
return SHELL_DEVICE_ERROR;
}
ShellStatus = SHELL_SUCCESS;
InitializeListHead (&List);
Position = 0;
while (Position < FileSize) {
//
// NameSize
//
BufferSize = sizeof (NameSize);
Status = ShellReadFile (FileHandle, &BufferSize, &NameSize);
if (EFI_ERROR (Status) || (BufferSize != sizeof (NameSize))) {
ShellStatus = SHELL_VOLUME_CORRUPTED;
break;
}
//
// DataSize
//
BufferSize = sizeof (DataSize);
Status = ShellReadFile (FileHandle, &BufferSize, &DataSize);
if (EFI_ERROR (Status) || (BufferSize != sizeof (DataSize))) {
ShellStatus = SHELL_VOLUME_CORRUPTED;
break;
}
//
// Name, Guid, Attributes, Data, Crc32
//
RemainingSize = NameSize + sizeof (EFI_GUID) + sizeof (UINT32) + DataSize + sizeof (Crc32);
BufferSize = sizeof (NameSize) + sizeof (DataSize) + RemainingSize;
Buffer = AllocatePool (BufferSize);
if (Buffer == NULL) {
ShellStatus = SHELL_OUT_OF_RESOURCES;
break;
}
BufferSize = RemainingSize;
Status = ShellReadFile (FileHandle, &BufferSize, (UINT32 *) Buffer + 2);
if (EFI_ERROR (Status) || (BufferSize != RemainingSize)) {
ShellStatus = SHELL_VOLUME_CORRUPTED;
FreePool (Buffer);
break;
}
//
// Check Crc32
//
* (UINT32 *) Buffer = NameSize;
* ((UINT32 *) Buffer + 1) = DataSize;
BufferSize = RemainingSize + sizeof (NameSize) + sizeof (DataSize) - sizeof (Crc32);
gBS->CalculateCrc32 (
Buffer,
BufferSize,
&Crc32
);
if (Crc32 != * (UINT32 *) (Buffer + BufferSize)) {
FreePool (Buffer);
ShellStatus = SHELL_VOLUME_CORRUPTED;
break;
}
Position += BufferSize + sizeof (Crc32);
Variable = AllocateZeroPool (sizeof (*Variable) + NameSize + DataSize);
if (Variable == NULL) {
FreePool (Buffer);
ShellStatus = SHELL_OUT_OF_RESOURCES;
break;
}
Variable->Signature = DMP_STORE_VARIABLE_SIGNATURE;
Variable->Name = (CHAR16 *) (Variable + 1);
Variable->DataSize = DataSize;
Variable->Data = (UINT8 *) Variable->Name + NameSize;
CopyMem (Variable->Name, Buffer + sizeof (NameSize) + sizeof (DataSize), NameSize);
CopyMem (&Variable->Guid, Buffer + sizeof (NameSize) + sizeof (DataSize) + NameSize, sizeof (EFI_GUID));
CopyMem (&Variable->Attributes, Buffer + sizeof (NameSize) + sizeof (DataSize) + NameSize + sizeof (EFI_GUID), sizeof (UINT32));
CopyMem (Variable->Data, Buffer + sizeof (NameSize) + sizeof (DataSize) + NameSize + sizeof (EFI_GUID) + sizeof (UINT32), DataSize);
InsertTailList (&List, &Variable->Link);
FreePool (Buffer);
}
if ((Position != FileSize) || (ShellStatus != SHELL_SUCCESS)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_LOAD_BAD_FILE), gShellDebug1HiiHandle);
if (Position != FileSize) {
ShellStatus = SHELL_VOLUME_CORRUPTED;
}
}
for ( Link = GetFirstNode (&List)
; !IsNull (&List, Link) && (ShellStatus == SHELL_SUCCESS)
; Link = GetNextNode (&List, Link)
) {
Variable = CR (Link, DMP_STORE_VARIABLE, Link, DMP_STORE_VARIABLE_SIGNATURE);
if (((Name == NULL) || gUnicodeCollation->MetaiMatch (gUnicodeCollation, Variable->Name, (CHAR16 *) Name)) &&
((Guid == NULL) || CompareGuid (&Variable->Guid, Guid))
) {
Attributes = GetAttrType (Variable->Attributes);
ShellPrintHiiEx (
-1, -1, NULL, STRING_TOKEN(STR_DMPSTORE_HEADER_LINE), gShellDebug1HiiHandle,
Attributes, &Variable->Guid, Variable->Name, Variable->DataSize
);
SHELL_FREE_NON_NULL(Attributes);
*Found = TRUE;
Status = gRT->SetVariable (
Variable->Name,
&Variable->Guid,
Variable->Attributes,
Variable->DataSize,
Variable->Data
);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_LOAD_GEN_FAIL), gShellDebug1HiiHandle, Variable->Name, Status);
}
}
}
for (Link = GetFirstNode (&List); !IsNull (&List, Link); ) {
Variable = CR (Link, DMP_STORE_VARIABLE, Link, DMP_STORE_VARIABLE_SIGNATURE);
Link = RemoveEntryList (&Variable->Link);
FreePool (Variable);
}
return ShellStatus;
}
/**
Append one variable to file.
@param[in] FileHandle The file to be appended.
@param[in] Name The variable name.
@param[in] Guid The variable GUID.
@param[in] Attributes The variable attributes.
@param[in] DataSize The variable data size.
@param[in] Data The variable data.
@retval EFI_OUT_OF_RESOURCES There is not enough memory to perform the operation.
@retval EFI_SUCCESS The variable is appended to file successfully.
@retval others Failed to append the variable to file.
**/
EFI_STATUS
AppendSingleVariableToFile (
IN SHELL_FILE_HANDLE FileHandle,
IN CONST CHAR16 *Name,
IN CONST EFI_GUID *Guid,
IN UINT32 Attributes,
IN UINT32 DataSize,
IN CONST UINT8 *Data
)
{
UINT32 NameSize;
UINT8 *Buffer;
UINT8 *Ptr;
UINTN BufferSize;
EFI_STATUS Status;
NameSize = (UINT32) StrSize (Name);
BufferSize = sizeof (NameSize) + sizeof (DataSize)
+ sizeof (*Guid)
+ sizeof (Attributes)
+ NameSize + DataSize
+ sizeof (UINT32);
Buffer = AllocatePool (BufferSize);
if (Buffer == NULL) {
return EFI_OUT_OF_RESOURCES;
}
Ptr = Buffer;
//
// NameSize and DataSize
//
* (UINT32 *) Ptr = NameSize;
Ptr += sizeof (NameSize);
*(UINT32 *) Ptr = DataSize;
Ptr += sizeof (DataSize);
//
// Name
//
CopyMem (Ptr, Name, NameSize);
Ptr += NameSize;
//
// Guid
//
CopyMem (Ptr, Guid, sizeof (*Guid));
Ptr += sizeof (*Guid);
//
// Attributes
//
* (UINT32 *) Ptr = Attributes;
Ptr += sizeof (Attributes);
//
// Data
//
CopyMem (Ptr, Data, DataSize);
Ptr += DataSize;
//
// Crc32
//
gBS->CalculateCrc32 (Buffer, (UINTN) (Ptr - Buffer), (UINT32 *) Ptr);
Status = ShellWriteFile (FileHandle, &BufferSize, Buffer);
FreePool (Buffer);
if (!EFI_ERROR (Status) &&
(BufferSize != sizeof (NameSize) + sizeof (DataSize) + sizeof (*Guid) + sizeof (Attributes) + NameSize + DataSize)
) {
Status = EFI_DEVICE_ERROR;
}
return Status;
}
/**
Recursive function to display or delete variables.
This function will call itself to create a stack-based list of allt he variables to process,
then fromt he last to the first, they will do either printing or deleting.
This is necessary since once a delete happens GetNextVariableName() will work.
@param[in] Name The variable name of the EFI variable (or NULL).
@param[in] Guid The GUID of the variable set (or NULL).
@param[in] Type The operation type.
@param[in] FileHandle The file to operate on (or NULL).
@param[in] PrevName The previous variable name from GetNextVariableName. L"" to start.
@param[in] FoundVarGuid The previous GUID from GetNextVariableName. ignored at start.
@param[in] FoundOne If a VariableName or Guid was specified and one was printed or
deleted, then set this to TRUE, otherwise ignored.
@retval SHELL_SUCCESS The operation was successful.
@retval SHELL_OUT_OF_RESOURCES A memorty allocation failed.
@retval SHELL_ABORTED The abort message was received.
@retval SHELL_DEVICE_ERROR UEFI Variable Services returned an error.
@retval SHELL_NOT_FOUND the Name/Guid pair could not be found.
**/
SHELL_STATUS
EFIAPI
CascadeProcessVariables (
IN CONST CHAR16 *Name OPTIONAL,
IN CONST EFI_GUID *Guid OPTIONAL,
IN DMP_STORE_TYPE Type,
IN EFI_FILE_PROTOCOL *FileHandle OPTIONAL,
IN CONST CHAR16 * CONST PrevName,
IN EFI_GUID FoundVarGuid,
IN BOOLEAN *FoundOne
)
{
EFI_STATUS Status;
CHAR16 *FoundVarName;
UINT8 *DataBuffer;
UINTN DataSize;
UINT32 Atts;
SHELL_STATUS ShellStatus;
UINTN NameSize;
CHAR16 *RetString;
if (ShellGetExecutionBreakFlag()) {
return (SHELL_ABORTED);
}
NameSize = 0;
FoundVarName = NULL;
if (PrevName!=NULL) {
StrnCatGrow(&FoundVarName, &NameSize, PrevName, 0);
} else {
FoundVarName = AllocateZeroPool(sizeof(CHAR16));
}
Status = gRT->GetNextVariableName (&NameSize, FoundVarName, &FoundVarGuid);
if (Status == EFI_BUFFER_TOO_SMALL) {
SHELL_FREE_NON_NULL(FoundVarName);
FoundVarName = AllocateZeroPool (NameSize);
if (FoundVarName != NULL) {
if (PrevName != NULL) {
StrnCpy(FoundVarName, PrevName, NameSize/sizeof(CHAR16)-1);
}
Status = gRT->GetNextVariableName (&NameSize, FoundVarName, &FoundVarGuid);
} else {
Status = EFI_OUT_OF_RESOURCES;
}
}
//
// No more is fine.
//
if (Status == EFI_NOT_FOUND) {
SHELL_FREE_NON_NULL(FoundVarName);
return (SHELL_SUCCESS);
} else if (EFI_ERROR(Status)) {
SHELL_FREE_NON_NULL(FoundVarName);
return (SHELL_DEVICE_ERROR);
}
//
// Recurse to the next iteration. We know "our" variable's name.
//
ShellStatus = CascadeProcessVariables(Name, Guid, Type, FileHandle, FoundVarName, FoundVarGuid, FoundOne);
if (ShellGetExecutionBreakFlag() || (ShellStatus == SHELL_ABORTED)) {
SHELL_FREE_NON_NULL(FoundVarName);
return (SHELL_ABORTED);
}
//
// No matter what happened we process our own variable
// Only continue if Guid and VariableName are each either NULL or a match
//
if ( ( Name == NULL
|| gUnicodeCollation->MetaiMatch(gUnicodeCollation, FoundVarName, (CHAR16*) Name) )
&& ( Guid == NULL
|| CompareGuid(&FoundVarGuid, Guid) )
) {
DataSize = 0;
DataBuffer = NULL;
//
// do the print or delete
//
*FoundOne = TRUE;
Status = gRT->GetVariable (FoundVarName, &FoundVarGuid, &Atts, &DataSize, DataBuffer);
if (Status == EFI_BUFFER_TOO_SMALL) {
SHELL_FREE_NON_NULL (DataBuffer);
DataBuffer = AllocatePool (DataSize);
if (DataBuffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
} else {
Status = gRT->GetVariable (FoundVarName, &FoundVarGuid, &Atts, &DataSize, DataBuffer);
}
}
if ((Type == DmpStoreDisplay) || (Type == DmpStoreSave)) {
//
// Last error check then print this variable out.
//
if (!EFI_ERROR(Status) && (DataBuffer != NULL) && (FoundVarName != NULL)) {
RetString = GetAttrType(Atts);
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN(STR_DMPSTORE_HEADER_LINE),
gShellDebug1HiiHandle,
RetString,
&FoundVarGuid,
FoundVarName,
DataSize);
if (Type == DmpStoreDisplay) {
DumpHex(2, 0, DataSize, DataBuffer);
} else {
Status = AppendSingleVariableToFile (
FileHandle,
FoundVarName,
&FoundVarGuid,
Atts,
(UINT32) DataSize,
DataBuffer
);
}
SHELL_FREE_NON_NULL(RetString);
}
} else if (Type == DmpStoreDelete) {
//
// We only need name to delete it...
//
ShellPrintHiiEx (
-1,
-1,
NULL,
STRING_TOKEN(STR_DMPSTORE_DELETE_LINE),
gShellDebug1HiiHandle,
&FoundVarGuid,
FoundVarName,
gRT->SetVariable (FoundVarName, &FoundVarGuid, Atts, 0, NULL)
);
}
SHELL_FREE_NON_NULL(DataBuffer);
}
SHELL_FREE_NON_NULL(FoundVarName);
if (Status == EFI_DEVICE_ERROR) {
ShellStatus = SHELL_DEVICE_ERROR;
} else if (Status == EFI_SECURITY_VIOLATION) {
ShellStatus = SHELL_SECURITY_VIOLATION;
} else if (EFI_ERROR(Status)) {
ShellStatus = SHELL_NOT_READY;
}
return (ShellStatus);
}
/**
Function to display or delete variables. This will set up and call into the recursive function.
@param[in] Name The variable name of the EFI variable (or NULL).
@param[in] Guid The GUID of the variable set (or NULL).
@param[in] Type The operation type.
@param[in] FileHandle The file to save or load variables.
@retval SHELL_SUCCESS The operation was successful.
@retval SHELL_OUT_OF_RESOURCES A memorty allocation failed.
@retval SHELL_ABORTED The abort message was received.
@retval SHELL_DEVICE_ERROR UEFI Variable Services returned an error.
@retval SHELL_NOT_FOUND the Name/Guid pair could not be found.
**/
SHELL_STATUS
EFIAPI
ProcessVariables (
IN CONST CHAR16 *Name OPTIONAL,
IN CONST EFI_GUID *Guid OPTIONAL,
IN DMP_STORE_TYPE Type,
IN SHELL_FILE_HANDLE FileHandle OPTIONAL
)
{
SHELL_STATUS ShellStatus;
BOOLEAN Found;
EFI_GUID FoundVarGuid;
Found = FALSE;
ShellStatus = SHELL_SUCCESS;
ZeroMem (&FoundVarGuid, sizeof(EFI_GUID));
if (Type == DmpStoreLoad) {
ShellStatus = LoadVariablesFromFile (FileHandle, Name, Guid, &Found);
} else {
ShellStatus = CascadeProcessVariables(Name, Guid, Type, FileHandle, NULL, FoundVarGuid, &Found);
}
if (!Found) {
if (ShellStatus == SHELL_OUT_OF_RESOURCES) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellDebug1HiiHandle);
return (ShellStatus);
} else if (Name != NULL && Guid == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_NO_VAR_FOUND_N), gShellDebug1HiiHandle, Name);
} else if (Name != NULL && Guid != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_NO_VAR_FOUND_GN), gShellDebug1HiiHandle, Guid, Name);
} else if (Name == NULL && Guid == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_NO_VAR_FOUND), gShellDebug1HiiHandle);
} else if (Name == NULL && Guid != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_NO_VAR_FOUND_G), gShellDebug1HiiHandle, Guid);
}
return (SHELL_NOT_FOUND);
}
return (ShellStatus);
}
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{L"-d", TypeFlag},
{L"-l", TypeValue},
{L"-s", TypeValue},
{L"-all", TypeFlag},
{L"-guid", TypeValue},
{NULL, TypeMax}
};
/**
Function for 'dmpstore' command.
@param[in] ImageHandle Handle to the Image (NULL if Internal).
@param[in] SystemTable Pointer to the System Table (NULL if Internal).
**/
SHELL_STATUS
EFIAPI
ShellCommandRunDmpStore (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
CONST CHAR16 *GuidStr;
CONST CHAR16 *File;
EFI_GUID *Guid;
EFI_GUID GuidData;
CONST CHAR16 *Name;
DMP_STORE_TYPE Type;
SHELL_FILE_HANDLE FileHandle;
EFI_FILE_INFO *FileInfo;
ShellStatus = SHELL_SUCCESS;
Package = NULL;
FileHandle = NULL;
File = NULL;
Type = DmpStoreDisplay;
Status = ShellCommandLineParse (ParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR(Status)) {
if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, ProblemParam);
FreePool(ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT(FALSE);
}
} else {
if (ShellCommandLineGetCount(Package) > 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetFlag(Package, L"-all") && ShellCommandLineGetFlag(Package, L"-guid")) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_CONFLICT), gShellDebug1HiiHandle, L"-all", L"-guid");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetFlag(Package, L"-s") && ShellCommandLineGetFlag(Package, L"-l")) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_CONFLICT), gShellDebug1HiiHandle, L"-l", L"-s");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if ((ShellCommandLineGetFlag(Package, L"-s") || ShellCommandLineGetFlag(Package, L"-l")) && ShellCommandLineGetFlag(Package, L"-d")) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_CONFLICT), gShellDebug1HiiHandle, L"-l or -s", L"-d");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
//
// Determine the GUID to search for based on -all and -guid parameters
//
if (!ShellCommandLineGetFlag(Package, L"-all")) {
GuidStr = ShellCommandLineGetValue(Package, L"-guid");
if (GuidStr != NULL) {
Status = ConvertStringToGuid(GuidStr, &GuidData);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, GuidStr);
ShellStatus = SHELL_INVALID_PARAMETER;
}
Guid = &GuidData;
} else {
Guid = &gEfiGlobalVariableGuid;
}
} else {
Guid = NULL;
}
//
// Get the Name of the variable to find
//
Name = ShellCommandLineGetRawValue(Package, 1);
if (ShellStatus == SHELL_SUCCESS) {
if (ShellCommandLineGetFlag(Package, L"-s")) {
Type = DmpStoreSave;
File = ShellCommandLineGetValue(Package, L"-s");
if (File == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellDebug1HiiHandle, L"-s");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Status = ShellOpenFileByName (File, &FileHandle, EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, 0);
if (!EFI_ERROR (Status)) {
//
// Delete existing file, but do not delete existing directory
//
FileInfo = ShellGetFileInfo (FileHandle);
if (FileInfo == NULL) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellDebug1HiiHandle, File);
Status = EFI_DEVICE_ERROR;
} else {
if ((FileInfo->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_IS_DIRECTORY), gShellDebug1HiiHandle, File);
Status = EFI_INVALID_PARAMETER;
} else {
Status = ShellDeleteFile (&FileHandle);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_DELETE_FAIL), gShellDebug1HiiHandle, File);
}
}
FreePool (FileInfo);
}
} else if (Status == EFI_NOT_FOUND) {
//
// Good when file doesn't exist
//
Status = EFI_SUCCESS;
} else {
//
// Otherwise it's bad.
//
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellDebug1HiiHandle, File);
}
if (!EFI_ERROR (Status)) {
Status = ShellOpenFileByName (File, &FileHandle, EFI_FILE_MODE_CREATE | EFI_FILE_MODE_WRITE | EFI_FILE_MODE_READ, 0);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellDebug1HiiHandle, File);
}
}
if (EFI_ERROR (Status)) {
ShellStatus = SHELL_INVALID_PARAMETER;
}
}
} else if (ShellCommandLineGetFlag(Package, L"-l")) {
Type = DmpStoreLoad;
File = ShellCommandLineGetValue(Package, L"-l");
if (File == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_NO_VALUE), gShellDebug1HiiHandle, L"-l");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
Status = ShellOpenFileByName (File, &FileHandle, EFI_FILE_MODE_READ, 0);
if (EFI_ERROR (Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellDebug1HiiHandle, File);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
FileInfo = ShellGetFileInfo (FileHandle);
if (FileInfo == NULL) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_OPEN_FAIL), gShellDebug1HiiHandle, File);
ShellStatus = SHELL_DEVICE_ERROR;
} else {
if ((FileInfo->Attribute & EFI_FILE_DIRECTORY) == EFI_FILE_DIRECTORY) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_GEN_FILE_IS_DIRECTORY), gShellDebug1HiiHandle, File);
ShellStatus = SHELL_INVALID_PARAMETER;
}
FreePool (FileInfo);
}
}
}
} else if (ShellCommandLineGetFlag(Package, L"-d")) {
Type = DmpStoreDelete;
}
}
if (ShellStatus == SHELL_SUCCESS) {
if (Type == DmpStoreSave) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_SAVE), gShellDebug1HiiHandle, File);
} else if (Type == DmpStoreLoad) {
ShellPrintHiiEx (-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_LOAD), gShellDebug1HiiHandle, File);
}
ShellStatus = ProcessVariables (Name, Guid, Type, FileHandle);
if ((Type == DmpStoreLoad) || (Type == DmpStoreSave)) {
ShellCloseFile (&FileHandle);
}
}
}
}
if (Package != NULL) {
ShellCommandLineFreeVarList (Package);
}
return ShellStatus;
}
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