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audk/ShellPkg/Library/UefiShellDebug1CommandsLib/DmpStore.c

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/** @file
Main file for DmpStore shell Debug1 function.
Copyright (c) 2005 - 2012, 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"
#define INIT_NAME_BUFFER_SIZE 128
#define INIT_DATA_BUFFER_SIZE 1024
/**
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"+RS+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;
}
/**
Function to display or delete variables.
@param[in] VariableName The variable name of the EFI variable (or NULL).
@param[in] Guid The GUID of the variable set (or NULL).
@param[in] Delete TRUE to delete, FALSE otherwise.
@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 *VariableName OPTIONAL,
IN CONST EFI_GUID *Guid OPTIONAL,
IN BOOLEAN Delete
)
{
EFI_STATUS Status;
CHAR16 *FoundVarName;
EFI_GUID FoundVarGuid;
UINT8 *DataBuffer;
UINTN DataSize;
UINT32 Atts;
SHELL_STATUS ShellStatus;
BOOLEAN Found;
UINTN NameBufferSize; // Allocated Name buffer size
UINTN NameSize;
CHAR16 *OldName;
UINTN OldNameBufferSize;
UINTN DataBufferSize; // Allocated data buffer size
CHAR16 *RetString;
Found = FALSE;
ShellStatus = SHELL_SUCCESS;
Status = EFI_SUCCESS;
NameBufferSize = INIT_NAME_BUFFER_SIZE;
DataBufferSize = INIT_DATA_BUFFER_SIZE;
FoundVarName = AllocateZeroPool (NameBufferSize);
if (FoundVarName == NULL) {
return (SHELL_OUT_OF_RESOURCES);
}
DataBuffer = AllocatePool (DataBufferSize);
if (DataBuffer == NULL) {
FreePool (FoundVarName);
return (SHELL_OUT_OF_RESOURCES);
}
for (;;){
if (ShellGetExecutionBreakFlag()) {
ShellStatus = SHELL_ABORTED;
break;
}
NameSize = NameBufferSize;
Status = gRT->GetNextVariableName (&NameSize, FoundVarName, &FoundVarGuid);
if (Status == EFI_BUFFER_TOO_SMALL) {
OldName = FoundVarName;
OldNameBufferSize = NameBufferSize;
//
// Expand at least twice to avoid reallocate many times
//
NameBufferSize = NameSize > NameBufferSize * 2 ? NameSize : NameBufferSize * 2;
FoundVarName = AllocateZeroPool (NameBufferSize);
if (FoundVarName == NULL) {
Status = EFI_OUT_OF_RESOURCES;
FreePool (OldName);
break;
}
//
// Preserve the original content to get correct iteration for GetNextVariableName() call
//
CopyMem (FoundVarName, OldName, OldNameBufferSize);
FreePool (OldName);
NameSize = NameBufferSize;
Status = gRT->GetNextVariableName (&NameSize, FoundVarName, &FoundVarGuid);
}
if (Status == EFI_NOT_FOUND) {
break;
}
ASSERT_EFI_ERROR(Status);
//
// Check if it matches
//
if (VariableName != NULL) {
if (!gUnicodeCollation->MetaiMatch(gUnicodeCollation, FoundVarName, (CHAR16*)VariableName)) {
continue;
}
}
if (Guid != NULL) {
if (!CompareGuid(&FoundVarGuid, Guid)) {
continue;
}
}
DataSize = DataBufferSize;
Status = gRT->GetVariable (FoundVarName, &FoundVarGuid, &Atts, &DataSize, DataBuffer);
if (Status == EFI_BUFFER_TOO_SMALL) {
//
// Expand at least twice to avoid reallocate many times
//
FreePool (DataBuffer);
DataBufferSize = DataSize > DataBufferSize * 2 ? DataSize : DataBufferSize * 2;
DataBuffer = AllocatePool (DataBufferSize);
if (DataBuffer == NULL) {
Status = EFI_OUT_OF_RESOURCES;
break;
}
DataSize = DataBufferSize;
Status = gRT->GetVariable (FoundVarName, &FoundVarGuid, &Atts, &DataSize, DataBuffer);
}
ASSERT_EFI_ERROR(Status);
//
// do the print or delete
//
Found = TRUE;
RetString = GetAttrType(Atts);
if (!Delete) {
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN(STR_DMPSTORE_HEADER_LINE),
gShellDebug1HiiHandle,
RetString,
&FoundVarGuid,
FoundVarName,
DataSize);
DumpHex(2, 0, DataSize, DataBuffer);
} else {
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN(STR_DMPSTORE_DELETE_LINE),
gShellDebug1HiiHandle,
&FoundVarGuid,
FoundVarName);
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN(STR_DMPSTORE_DELETE_DONE),
gShellDebug1HiiHandle,
gRT->SetVariable(FoundVarName, &FoundVarGuid, Atts, 0, NULL));
FoundVarName[0] = CHAR_NULL;
}
if (RetString != NULL) {
FreePool (RetString);
}
}
if (FoundVarName != NULL) {
FreePool(FoundVarName);
}
if (DataBuffer != NULL) {
FreePool(DataBuffer);
}
if (!Found) {
if (Status == EFI_OUT_OF_RESOURCES) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_OUT_MEM), gShellDebug1HiiHandle);
return SHELL_OUT_OF_RESOURCES;
}
if (VariableName != NULL && Guid == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_NO_VAR_FOUND_N), gShellDebug1HiiHandle, VariableName);
} else if (VariableName != NULL && Guid != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_NO_VAR_FOUND_GN), gShellDebug1HiiHandle, Guid, VariableName);
} else if (VariableName == NULL && Guid == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_NO_VAR_FOUND), gShellDebug1HiiHandle);
} else if (VariableName == NULL && Guid != NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_DMPSTORE_NO_VAR_FOUND_G), gShellDebug1HiiHandle, Guid);
}
return (SHELL_NOT_FOUND);
}
return (SHELL_SUCCESS);
}
STATIC CONST SHELL_PARAM_ITEM ParamList[] = {
{L"-d", TypeFlag},
{L"-l", TypeFlag},
{L"-s", TypeFlag},
{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 *Temp;
EFI_GUID *Guid;
EFI_GUID GuidData;
CONST CHAR16 *VariableName;
ShellStatus = SHELL_SUCCESS;
Package = NULL;
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")) && 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 {
if (!ShellCommandLineGetFlag(Package, L"-all")) {
Temp = ShellCommandLineGetValue(Package, L"-guid");
if (Temp != NULL) {
Status = ConvertStringToGuid(Temp, &GuidData);
if (EFI_ERROR(Status)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, Temp);
ShellStatus = SHELL_INVALID_PARAMETER;
}
Guid = &GuidData;
} else {
Guid = &gEfiGlobalVariableGuid;
}
VariableName = ShellCommandLineGetRawValue(Package, 1);
} else {
VariableName = NULL;
Guid = NULL;
}
if (ShellStatus == SHELL_SUCCESS) {
if (ShellCommandLineGetFlag(Package, L"-s") || ShellCommandLineGetFlag(Package, L"-l")) {
///@todo fix this after lib ready...
ShellPrintEx(-1, -1, L"Not implemeneted yet.\r\n");
ShellStatus = SHELL_UNSUPPORTED;
} else {
ShellStatus = ProcessVariables (VariableName, Guid, ShellCommandLineGetFlag(Package, L"-d"));
}
}
}
}
if (Package != NULL) {
ShellCommandLineFreeVarList (Package);
}
return ShellStatus;
}
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