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/** @file
Main file for Dblk shell Debug1 function.
(C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR>
Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "UefiShellDebug1CommandsLib.h"
#include <Protocol/BlockIo.h>
/**
Display blocks to the screen.
@param[in] DevPath The device path to get the blocks from.
@param[in] Lba The Lba number to start from.
@param[in] BlockCount How many blocks to display.
@retval SHELL_SUCCESS The display was successful.
**/
SHELL_STATUS
DisplayTheBlocks (
IN CONST EFI_DEVICE_PATH_PROTOCOL *DevPath,
IN CONST UINT64 Lba,
IN CONST UINT8 BlockCount
)
{
EFI_BLOCK_IO_PROTOCOL *BlockIo;
EFI_HANDLE BlockIoHandle;
EFI_STATUS Status;
SHELL_STATUS ShellStatus;
UINT8 *Buffer;
UINT8 *OriginalBuffer;
UINTN BufferSize;
ShellStatus = SHELL_SUCCESS;
Status = gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, (EFI_DEVICE_PATH_PROTOCOL **)&DevPath, &BlockIoHandle);
if (EFI_ERROR (Status)) {
return (SHELL_NOT_FOUND);
}
Status = gBS->OpenProtocol (BlockIoHandle, &gEfiBlockIoProtocolGuid, (VOID **)&BlockIo, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL);
if (EFI_ERROR (Status)) {
return (SHELL_NOT_FOUND);
}
BufferSize = BlockIo->Media->BlockSize * BlockCount;
if (BlockIo->Media->IoAlign == 0) {
BlockIo->Media->IoAlign = 1;
}
if (BufferSize > 0) {
OriginalBuffer = AllocateZeroPool (BufferSize + BlockIo->Media->IoAlign);
Buffer = ALIGN_POINTER (OriginalBuffer, BlockIo->Media->IoAlign);
} else {
ShellPrintDefaultEx (L" BlockSize: 0x%08x, BlockCount: 0x%08x\r\n", BlockIo->Media->BlockSize, BlockCount);
OriginalBuffer = NULL;
Buffer = NULL;
}
Status = BlockIo->ReadBlocks (BlockIo, BlockIo->Media->MediaId, Lba, BufferSize, Buffer);
if (!EFI_ERROR (Status) && (Buffer != NULL)) {
ShellPrintHiiDefaultEx (
STRING_TOKEN (STR_DBLK_HEADER),
gShellDebug1HiiHandle,
Lba,
BufferSize,
BlockIo
);
DumpHex (2, 0, BufferSize, Buffer);
} else {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_FILE_READ_FAIL), gShellDebug1HiiHandle, L"dblk", L"BlockIo");
ShellStatus = SHELL_DEVICE_ERROR;
}
if (OriginalBuffer != NULL) {
FreePool (OriginalBuffer);
}
gBS->CloseProtocol (BlockIoHandle, &gEfiBlockIoProtocolGuid, gImageHandle, NULL);
return (ShellStatus);
}
/**
Function for 'dblk' 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
ShellCommandRunDblk (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
LIST_ENTRY *Package;
CHAR16 *ProblemParam;
SHELL_STATUS ShellStatus;
CONST CHAR16 *BlockName;
CONST CHAR16 *LbaString;
CONST CHAR16 *BlockCountString;
UINT64 Lba;
UINT64 BlockCount;
EFI_DEVICE_PATH_PROTOCOL *DevPath;
Lba = 0;
BlockCount = 0;
ShellStatus = SHELL_SUCCESS;
Status = EFI_SUCCESS;
//
// initialize the shell lib (we must be in non-auto-init...)
//
Status = ShellInitialize ();
ASSERT_EFI_ERROR (Status);
Status = CommandInit ();
ASSERT_EFI_ERROR (Status);
//
// parse the command line
//
Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE);
if (EFI_ERROR (Status)) {
if ((Status == EFI_VOLUME_CORRUPTED) && (ProblemParam != NULL)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"dblk", ProblemParam);
FreePool (ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT (FALSE);
}
} else {
if (ShellCommandLineGetCount (Package) > 4) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle, L"dblk");
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetCount (Package) < 2) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"dblk");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
//
// Parse the params
//
BlockName = ShellCommandLineGetRawValue (Package, 1);
LbaString = ShellCommandLineGetRawValue (Package, 2);
BlockCountString = ShellCommandLineGetRawValue (Package, 3);
if (LbaString == NULL) {
Lba = 0;
} else {
if (!ShellIsHexOrDecimalNumber (LbaString, TRUE, FALSE)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", LbaString);
ShellStatus = SHELL_INVALID_PARAMETER;
}
if (EFI_ERROR (ShellConvertStringToUint64 (LbaString, &Lba, TRUE, FALSE))) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", LbaString);
ShellStatus = SHELL_INVALID_PARAMETER;
}
}
if (BlockCountString == NULL) {
BlockCount = 1;
} else {
if (!ShellIsHexOrDecimalNumber (BlockCountString, TRUE, FALSE)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", BlockCountString);
ShellStatus = SHELL_INVALID_PARAMETER;
}
if (!EFI_ERROR (ShellConvertStringToUint64 (BlockCountString, &BlockCount, TRUE, FALSE))) {
if (BlockCount > 0x10) {
BlockCount = 0x10;
} else if (BlockCount == 0) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", BlockCountString);
ShellStatus = SHELL_INVALID_PARAMETER;
}
}
}
if (ShellStatus == SHELL_SUCCESS) {
//
// do the work if we have a valid block identifier
//
if ((BlockName == NULL) || (gEfiShellProtocol->GetDevicePathFromMap (BlockName) == NULL)) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", BlockName);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
DevPath = (EFI_DEVICE_PATH_PROTOCOL *)gEfiShellProtocol->GetDevicePathFromMap (BlockName);
if (gBS->LocateDevicePath (&gEfiBlockIoProtocolGuid, &DevPath, NULL) == EFI_NOT_FOUND) {
ShellPrintHiiDefaultEx (STRING_TOKEN (STR_GEN_MAP_PROTOCOL), gShellDebug1HiiHandle, L"dblk", BlockName, L"BlockIo");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ShellStatus = DisplayTheBlocks (gEfiShellProtocol->GetDevicePathFromMap (BlockName), Lba, (UINT8)BlockCount);
}
}
}
}
ShellCommandLineFreeVarList (Package);
}
return (ShellStatus);
}
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