1 /** @file 2 Main file for Dblk shell Debug1 function. 3 4 (C) Copyright 2015 Hewlett-Packard Development Company, L.P.<BR> 5 Copyright (c) 2005 - 2011, Intel Corporation. All rights reserved.<BR> 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 10 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. 13 14 **/ 15 16 #include "UefiShellDebug1CommandsLib.h" 17 #include <Protocol/BlockIo.h> 18 19 /** 20 Display blocks to the screen. 21 22 @param[in] DevPath The device path to get the blocks from. 23 @param[in] Lba The Lba number to start from. 24 @param[in] BlockCount How many blocks to display. 25 26 @retval SHELL_SUCCESS The display was successful. 27 **/ 28 SHELL_STATUS 29 EFIAPI 30 DisplayTheBlocks( 31 IN CONST EFI_DEVICE_PATH_PROTOCOL *DevPath, 32 IN CONST UINT64 Lba, 33 IN CONST UINT8 BlockCount 34 ) 35 { 36 EFI_BLOCK_IO_PROTOCOL *BlockIo; 37 EFI_HANDLE BlockIoHandle; 38 EFI_STATUS Status; 39 SHELL_STATUS ShellStatus; 40 UINT8 *Buffer; 41 UINTN BufferSize; 42 43 ShellStatus = SHELL_SUCCESS; 44 45 Status = gBS->LocateDevicePath(&gEfiBlockIoProtocolGuid, (EFI_DEVICE_PATH_PROTOCOL **)&DevPath, &BlockIoHandle); 46 if (EFI_ERROR(Status)) { 47 return (SHELL_NOT_FOUND); 48 } 49 50 Status = gBS->OpenProtocol(BlockIoHandle, &gEfiBlockIoProtocolGuid, (VOID**)&BlockIo, gImageHandle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); 51 if (EFI_ERROR(Status)) { 52 return (SHELL_NOT_FOUND); 53 } 54 55 BufferSize = BlockIo->Media->BlockSize * BlockCount; 56 if (BufferSize > 0) { 57 Buffer = AllocateZeroPool(BufferSize); 58 } else { 59 ShellPrintEx(-1,-1,L" BlockSize: 0x%08x, BlockCount: 0x%08x\r\n", BlockIo->Media->BlockSize, BlockCount); 60 Buffer = NULL; 61 } 62 63 Status = BlockIo->ReadBlocks(BlockIo, BlockIo->Media->MediaId, Lba, BufferSize, Buffer); 64 if (!EFI_ERROR(Status) && Buffer != NULL) { 65 ShellPrintHiiEx( 66 -1, 67 -1, 68 NULL, 69 STRING_TOKEN (STR_DBLK_HEADER), 70 gShellDebug1HiiHandle, 71 Lba, 72 BufferSize, 73 BlockIo 74 ); 75 76 DumpHex(2,0,BufferSize,Buffer); 77 } else { 78 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_FILE_READ_FAIL), gShellDebug1HiiHandle, L"dblk", L"BlockIo"); 79 ShellStatus = SHELL_DEVICE_ERROR; 80 } 81 82 if (Buffer != NULL) { 83 FreePool(Buffer); 84 } 85 86 gBS->CloseProtocol(BlockIoHandle, &gEfiBlockIoProtocolGuid, gImageHandle, NULL); 87 return (ShellStatus); 88 } 89 90 /** 91 Function for 'dblk' command. 92 93 @param[in] ImageHandle Handle to the Image (NULL if Internal). 94 @param[in] SystemTable Pointer to the System Table (NULL if Internal). 95 **/ 96 SHELL_STATUS 97 EFIAPI 98 ShellCommandRunDblk ( 99 IN EFI_HANDLE ImageHandle, 100 IN EFI_SYSTEM_TABLE *SystemTable 101 ) 102 { 103 EFI_STATUS Status; 104 LIST_ENTRY *Package; 105 CHAR16 *ProblemParam; 106 SHELL_STATUS ShellStatus; 107 CONST CHAR16 *BlockName; 108 CONST CHAR16 *LbaString; 109 CONST CHAR16 *BlockCountString; 110 UINT64 Lba; 111 UINT64 BlockCount; 112 EFI_DEVICE_PATH_PROTOCOL *DevPath; 113 114 ShellStatus = SHELL_SUCCESS; 115 Status = EFI_SUCCESS; 116 117 // 118 // initialize the shell lib (we must be in non-auto-init...) 119 // 120 Status = ShellInitialize(); 121 ASSERT_EFI_ERROR(Status); 122 123 Status = CommandInit(); 124 ASSERT_EFI_ERROR(Status); 125 126 // 127 // parse the command line 128 // 129 Status = ShellCommandLineParse (EmptyParamList, &Package, &ProblemParam, TRUE); 130 if (EFI_ERROR(Status)) { 131 if (Status == EFI_VOLUME_CORRUPTED && ProblemParam != NULL) { 132 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PROBLEM), gShellDebug1HiiHandle, L"dblk", ProblemParam); 133 FreePool(ProblemParam); 134 ShellStatus = SHELL_INVALID_PARAMETER; 135 } else { 136 ASSERT(FALSE); 137 } 138 } else { 139 if (ShellCommandLineGetCount(Package) > 4) { 140 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_MANY), gShellDebug1HiiHandle, L"dblk"); 141 ShellStatus = SHELL_INVALID_PARAMETER; 142 } else if (ShellCommandLineGetCount(Package) < 2) { 143 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_TOO_FEW), gShellDebug1HiiHandle, L"dblk"); 144 ShellStatus = SHELL_INVALID_PARAMETER; 145 } else { 146 // 147 // Parse the params 148 // 149 BlockName = ShellCommandLineGetRawValue(Package, 1); 150 LbaString = ShellCommandLineGetRawValue(Package, 2); 151 BlockCountString = ShellCommandLineGetRawValue(Package, 3); 152 153 if (LbaString == NULL) { 154 Lba = 0; 155 } else { 156 if (!ShellIsHexOrDecimalNumber(LbaString, TRUE, FALSE)) { 157 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", LbaString); 158 ShellStatus = SHELL_INVALID_PARAMETER; 159 } 160 ShellConvertStringToUint64(LbaString, &Lba, TRUE, FALSE); 161 } 162 163 if (BlockCountString == NULL) { 164 BlockCount = 1; 165 } else { 166 if (!ShellIsHexOrDecimalNumber(BlockCountString, TRUE, FALSE)) { 167 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", BlockCountString); 168 ShellStatus = SHELL_INVALID_PARAMETER; 169 } 170 ShellConvertStringToUint64(BlockCountString, &BlockCount, TRUE, FALSE); 171 if (BlockCount > 0x10) { 172 BlockCount = 0x10; 173 } else if (BlockCount == 0) { 174 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", BlockCountString); 175 ShellStatus = SHELL_INVALID_PARAMETER; 176 } 177 } 178 179 if (ShellStatus == SHELL_SUCCESS) { 180 // 181 // do the work if we have a valid block identifier 182 // 183 if (gEfiShellProtocol->GetDevicePathFromMap(BlockName) == NULL) { 184 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_PARAM_INV), gShellDebug1HiiHandle, L"dblk", BlockName); 185 ShellStatus = SHELL_INVALID_PARAMETER; 186 } else { 187 DevPath = (EFI_DEVICE_PATH_PROTOCOL*)gEfiShellProtocol->GetDevicePathFromMap(BlockName); 188 if (gBS->LocateDevicePath(&gEfiBlockIoProtocolGuid, &DevPath, NULL) == EFI_NOT_FOUND) { 189 ShellPrintHiiEx(-1, -1, NULL, STRING_TOKEN (STR_GEN_MAP_PROTOCOL), gShellDebug1HiiHandle, L"dblk", BlockName, L"BlockIo"); 190 ShellStatus = SHELL_INVALID_PARAMETER; 191 } else { 192 ShellStatus = DisplayTheBlocks(gEfiShellProtocol->GetDevicePathFromMap(BlockName), Lba, (UINT8)BlockCount); 193 } 194 } 195 } 196 } 197 198 ShellCommandLineFreeVarList (Package); 199 } 200 return (ShellStatus); 201 } 202
