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/** @file
Main file for Dblk shell Debug1 function.
Copyright (c) 2005 - 2011, 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"
#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
EFIAPI
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;
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 (BufferSize > 0) {
Buffer = AllocateZeroPool(BufferSize);
} else {
ShellPrintEx(-1,-1,L" BlockSize: 0x%08x, BlockCount: 0x%08x\r\n", BlockIo->Media->BlockSize, BlockCount);
Buffer = NULL;
}
Status = BlockIo->ReadBlocks(BlockIo, BlockIo->Media->MediaId, Lba, BufferSize, Buffer);
if (!EFI_ERROR(Status) && Buffer != NULL) {
ShellPrintHiiEx(
-1,
-1,
NULL,
STRING_TOKEN (STR_DBLK_HEADER),
gShellDebug1HiiHandle,
Lba,
BufferSize,
BlockIo
);
DumpHex(2,0,BufferSize,Buffer);
} else {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_READ_FAIL), gShellDebug1HiiHandle, L"BlockIo", Status);
ShellStatus = SHELL_DEVICE_ERROR;
}
if (Buffer != NULL) {
FreePool(Buffer);
}
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;
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) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, ProblemParam);
FreePool(ProblemParam);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ASSERT(FALSE);
}
} else {
if (ShellCommandLineGetCount(Package) > 4) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle);
ShellStatus = SHELL_INVALID_PARAMETER;
} else if (ShellCommandLineGetCount(Package) < 2) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle);
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)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, LbaString);
ShellStatus = SHELL_INVALID_PARAMETER;
}
ShellConvertStringToUint64(LbaString, &Lba, TRUE, FALSE);
}
if (BlockCountString == NULL) {
BlockCount = 1;
} else {
if (!ShellIsHexOrDecimalNumber(BlockCountString, TRUE, FALSE)) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, BlockCountString);
ShellStatus = SHELL_INVALID_PARAMETER;
}
ShellConvertStringToUint64(BlockCountString, &BlockCount, TRUE, FALSE);
if (BlockCount > 0x10) {
BlockCount = 0x10;
} else if (BlockCount == 0) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, BlockCountString);
ShellStatus = SHELL_INVALID_PARAMETER;
}
}
if (ShellStatus == SHELL_SUCCESS) {
//
// do the work if we have a valid block identifier
//
if (mEfiShellProtocol->GetDevicePathFromMap(BlockName) == NULL) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, BlockName);
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
DevPath = (EFI_DEVICE_PATH_PROTOCOL*)mEfiShellProtocol->GetDevicePathFromMap(BlockName);
if (gBS->LocateDevicePath(&gEfiBlockIoProtocolGuid, &DevPath, NULL) == EFI_NOT_FOUND) {
ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_MAP_PROTOCOL), gShellDebug1HiiHandle, BlockName, L"BlockIo");
ShellStatus = SHELL_INVALID_PARAMETER;
} else {
ShellStatus = DisplayTheBlocks(mEfiShellProtocol->GetDevicePathFromMap(BlockName), Lba, (UINT8)BlockCount);
}
}
}
}
ShellCommandLineFreeVarList (Package);
}
return (ShellStatus);
}
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