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废话不多说 直接code
#include#include //#include #include #include #include #include #include #include #include #include #include "EfiKey.h"#include #include #include //#include //#include extern EFI_BOOT_SERVICES *gBS;extern EFI_HANDLE gImageHandle;#if 1//*************************************************************************// //// Name: Sprintf//// Description:// UINTN Sprintf(OUT CHAR8 *Buffer, IN CHAR8 *Format, IN ...) produces a// null-terminated ASCII string in the output Buffer. The ASCII string is// produced by parsing the format string specified by Format. Arguments are // pulled from the variable argument list based on the contents of the format// string. The number of ASCII characters in the produced output buffer is// returned, not including the null-terminator. See notes for format string // information.//// Input:// OUT CHAR8 *Buffer// Pointer to a null-terminated output ASCII string buffer. User is// responsible for allocating the necessary memory resources!//// IN CHAR8 *Format// Pointer to a null-terminated format ASCII string.//// IN ...// Variable argument list which provides the data/variables used within the// format string.//// Output:// UINTN number of ASCII characters in the produced output buffer, not// including the null-terminator.//// Modified://// Referrals:// va_start// Sprintf_va_list// va_end// // Notes:// Objects inside the format string have the following syntax.// %[flags][width]type//// *** [flags] ***// // . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . // . Flag . Description// . . // . - . The field is left justified. If flag is not specified, then // . . the field is right justified.// . . // . space . Prefix a space character to a number. Only valid for types X, // . . x, and d.// . . // . + . Prefix a plus character to a number. Only valid for types X,// . . x, and d. If both space and `+' are specified, then space is// . . ignored.// . .// . 0 . Pad with `0' characters to the left of a number. Only valid// . . for types X, x, and d.// . .// . L, l . The number being printed is a UINT64. Only valid for types X,// . . x, and d. If this flag is not specified, then the number being// . . printed is an int.// . .// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . // // NOTE// All invalid [flags] are ignored.//// *** [width] ***//// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . // . Width . Description// . .// . * . The width of the field is specified by a UINTN argument in the// . . argument list.// . .// . Number . The number specified as a decimal value represents the width of// . . the field.// . .// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . //// NOTE// If [width] is not specified, then a field width of 0 is assumed.//// *** type ***// // . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . // . Type . Description// . .// . % . Print a `%'.// . .// . c . The argument is an ASCII character. // . .// . x . The argument is a hexadecimal number. The characters used are // . . 0..9 and a..f. If the flag `l' is not specified, then the// . . argument is assumed to be an int.// . .// . X . The argument is a hexadecimal number. The characters used are // . . 0..9 and A..F. If the flag `l' is not specified, then the// . . argument is assumed to be an int.// . .// . d . The argument is a decimal number. If the flag `l' is not// . . specified, then the argument is assumed to be an int.// . .// . i . The same as `d'.// . .// . s . The argument is a pointer to null-terminated ASCII string.// . .// . a . The same as `s'.// . .// . S . The argument is a pointer to a null-terminated Unicode string.// . .// . g . The argument is a pointer to a GUID structure. The GUID is// . . printed in the format xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx.// . .// . G . The argument is a pointer to a GUID structure. The GUID is// . . printed in the format XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX.// . .// . r . The argument is an EFI_STATUS value. This value is converted// . . to a string.// . .// . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . //// NOTE// All invalid type characters are copied into the result string.//// //*************************************************************************int macdbg_dmphex_kernel(const char* buff_in, int len){ int retval = 0; int x, y, tot, lineoff; const char* curr; CHAR16 buff[1024]; UINTN index; DEBUG( (EFI_D_INFO, "dump addr -> 0x%x: \n", buff_in) ); //DEBUG((EFI_D_INFO, "len = 0x%x.\n", len )); lineoff = 0; curr = buff_in; tot = 0; for( x = 0; x+16 < len; ){ index = 0x00; memset( buff, 0x00, sizeof(buff) ); Swprintf( &buff[index], L"0x%04x: ", lineoff ); index = Wcslen(buff); //DEBUG((EFI_D_INFO, "index = %d\n", index )); //DEBUG((EFI_D_INFO, "debug.0 = %s\n", buff )); //DEBUG((EFI_D_INFO, "debug.1 = %S\n", buff )); for( y = 0; y < 16; y++ ){ Swprintf( &buff[index], L"%02x ", (unsigned char)*(curr + y) ); index = Wcslen(buff); } //DEBUG((EFI_D_INFO, "debug.2 = %s\n", buff )); Swprintf( &buff[index], L"%s", L" " ); index = Wcslen(buff); for( y = 0; y < 16; y++ ){ char c; c = *(curr + y); if( c > 31 && c < 127 ){ Swprintf( &buff[index], L"%c", c ); }else{ Swprintf( &buff[index], L"%c", L'.' ); } index = Wcslen(buff); tot++; } curr += 16; x += 16; lineoff+=16; Swprintf( &buff[index], L"%s", L"\n" ); //printk("%s", buff); //DEBUG((EFI_D_INFO, "debug.2 = %s\n", buff )); DEBUG((EFI_D_INFO, "%s", buff)); //DEBUG((EFI_D_INFO, "debug.3 = %S\n", buff )); } //do last line //Ser_Printf("tot %d.\r\n", tot ); //Ser_Printf("len %d.\r\n", len ); index = 0x00; memset( buff, 0x00, sizeof(buff) ); if( tot < len ){ curr = (buff_in + tot); Swprintf( &buff[index], L"0x%04x: ", lineoff ); index = Wcslen(buff); for( y = 0; y < (len - tot); y++ ){ Swprintf( &buff[index], L"%02x ", (unsigned char)*(curr + y) ); index = Wcslen(buff); } //padding with spaces //printk("(len - tot) %d.\r\n", (len - tot) ); if( (len - tot) < 16 ){ for( y = 0; y<(16-(len-tot)); y++ ){ Swprintf( &buff[index], L"%s", L" " ); index = index + 3; } } Swprintf( &buff[index], L"%s", L" " ); index = Wcslen(buff); //Ser_Printf("(len - tot) %d.\r\n", (len - tot) ); for( y = 0; y < (len - tot); y++ ){ char c; c = *(curr + y); if( c > 31 && c < 127 ){ Swprintf( &buff[index], L"%c", c ); }else{ Swprintf( &buff[index], L"%c", L'.' ); } index = Wcslen(buff); } } Swprintf( &buff[index], L"%s", L"\n" ); //printk("%s", buff); DEBUG((EFI_D_INFO, "%s\n", buff)); return retval;}#endif /** Return SMBIOS string for the given string number. @param[in] Smbios Pointer to SMBIOS structure. @param[in] StringNumber String number to return. -1 is used to skip all strings and point to the next SMBIOS structure. @return Pointer to string, or pointer to next SMBIOS strcuture if StringNumber == -1**/CHAR8*LibGetSmbiosString ( IN SMBIOS_STRUCTURE_POINTER *Smbios, IN UINT16 StringNumber ){ UINT16 Index; CHAR8 *String; ASSERT (Smbios != NULL); // // Skip over formatted section // String = (CHAR8 *) (Smbios->Raw + Smbios->Hdr->Length); // // Look through unformated section // for (Index = 1; Index <= StringNumber; Index++) { if (StringNumber == Index) { return String; } // // Skip string // for (; *String != 0; String++); String++; if (*String == 0) { // // If double NULL then we are done. // Return pointer to next structure in Smbios. // if you pass in a -1 you will always get here // Smbios->Raw = (UINT8 *)++String; return NULL; } } return NULL;}//**********************************************************************// //// Procedure: EfiLibGetSystemConfigurationTable//// Description: Get table from configuration table by name//// Input: IN EFI_GUID *TableGuid,// IN OUT VOID **Table//// Output: EFI_STATUS//// Modified://// Referrals://// Notes:// //**********************************************************************EFI_STATUS EfiLibGetSystemConfigurationTable( IN EFI_GUID *TableGuid, IN OUT VOID **Table ){ UINTN Index; *Table = NULL; for ( Index = 0; Index < gST->NumberOfTableEntries; Index++ ) { if ( !CompareMem( TableGuid, &(gST->ConfigurationTable[Index].VendorGuid), sizeof(EFI_GUID))) { *Table = gST->ConfigurationTable[Index].VendorTable; return EFI_SUCCESS; } } return EFI_NOT_FOUND;}void test_fuck(void){ CHAR16 debug_buff[128]; UINTN index; int len; memset( debug_buff, 0x00, sizeof(debug_buff) ); index = 0x00; Swprintf( &debug_buff[index], L"0x%04x: ", 0x1234 ); index = Wcslen(debug_buff); len = sizeof(debug_buff); macdbg_dmphex_kernel((const char *)debug_buff, len ); DEBUG( (EFI_D_INFO, "index = %d\n", index) ); DEBUG( (EFI_D_INFO, "in test_fuck 4 = %s\n", debug_buff) ); }EFI_STATUS test_smbios_table(){ EFI_STATUS Status; SMBIOS_TABLE_ENTRY_POINT *mSmbiosTable = NULL; SMBIOS_STRUCTURE_POINTER m_SmbiosStruct; SMBIOS_STRUCTURE_POINTER *mSmbiosStruct = &m_SmbiosStruct; SMBIOS_STRUCTURE_POINTER Smbios; SMBIOS_STRUCTURE_POINTER SmbiosEnd; UINT8 *Raw; UINT16 Handle1 = 0; UINT8 *Buffer1; UINT16 Length1; UINT16 *Handle; UINT8 **Buffer; UINT16 *Length; UINT8 Type; mSmbiosTable = NULL; //Get SMBIOS table from System Configure table Status = EfiLibGetSystemConfigurationTable(&gEfiSmbiosTableGuid,(VOID**)&mSmbiosTable); if (mSmbiosTable == NULL){ Print(L"%r.\n",Status); } //Init SMBIOS structure table address mSmbiosStruct->Raw = (UINT8 *)(UINTN)(mSmbiosTable->TableAddress); //Find the structure Handle = &Handle1; Length = &Length1; Buffer = &Buffer1; *Length = 0; Smbios.Hdr = mSmbiosStruct->Hdr; SmbiosEnd.Raw = Smbios.Raw + mSmbiosTable->TableLength; Print(L"TableLenth:%02d\n",mSmbiosTable->TableLength); while (Smbios.Raw < SmbiosEnd.Raw){ if (Smbios.Hdr->Handle == *Handle){ Raw = Smbios.Raw; Type = Smbios.Hdr->Type; //Walk to next structure LibGetSmbiosString(&Smbios,(UINT16)(-1)); //Length = Next structure head - this structure head *Length = (UINT16)(Smbios.Raw - Raw); *Buffer = Raw; //update with the next structure handle. if (Smbios.Raw < SmbiosEnd.Raw){ *Handle = Smbios.Hdr->Handle; } else{ *Handle = (UINT16)(-1); } DEBUG( (EFI_D_INFO, "Handle:0x%04x Type:0x%02x Address:%08x Length:%04x.\n", *Handle - 1, Type, *Buffer, *Length) ); macdbg_dmphex_kernel(*Buffer, *Length ); } } *Handle = (UINT16)(-1); return EFI_SUCCESS;}EFI_STATUS UefiMain ( IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable ){ EFI_STATUS Status; EFI_SMBIOS_HANDLE SmbiosHandle = 0; EFI_SMBIOS_TABLE_HEADER *Record; EFI_SMBIOS_PROTOCOL *Smbios; UINTN OrigStringNumber = 5; CHAR8 *AsciiData = "smbios_test_str = 12345"; DEBUG( (EFI_D_WARN, "start UefiMain...\n") ); Status = gBS->LocateProtocol(&gEfiSmbiosProtocolGuid, NULL, (VOID**)&Smbios); Status = Smbios->GetNext (Smbios, &SmbiosHandle, NULL, &Record, NULL); DEBUG( (EFI_D_INFO, "Type : %x\n", Record->Type) ); DEBUG( (EFI_D_INFO, "Length : %x\n", Record->Length) ); DEBUG( (EFI_D_INFO, "Handle : %x\n", Record->Handle) ); macdbg_dmphex_kernel( (const char *)Record, 256 ); Status = Smbios->UpdateString (Smbios, &SmbiosHandle, &OrigStringNumber, AsciiData); macdbg_dmphex_kernel((const char *)Record, 256 ); test_smbios_table(); return EFI_SUCCESS;}
inf文件内容：
## @file# Component description file for EFI Shell module.## This is a binary module containing multiple binary shell applications.# All .efi file tagged with "ToolCode="DUMMY"" in following file list are raw EFI application# file, and they are can be run in shell environment.# Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.## 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.####[Defines]INF_VERSION = 0x00010006BASE_NAME = FullShell## FILE_GUID = c57ad6b7-0515-40a8-9d21-551652854e37FILE_GUID = 7C04A583-9E3E-4f1c-AD65-E05268D0B4D2MODULE_TYPE = UEFI_APPLICATIONVERSION_STRING = 1.0ENTRY_POINT = UefiMain## VALID_ARCHITECTURES = IA32 X64 IPF#[Sources]kbLEDTest.c[Packages]MdePkg/MdePkg.decServerCommonPkg/ServerCommonPkg.decIntelFrameworkPkg/IntelFrameworkPkg.decAmiCompatibilityPkg/AmiCompatibilityPkg.dec#ShellPkg/ShellPkg.decMdeModulePkg/MdeModulePkg.decAmiPkg/AmiPkg.decMdeModulePkg/MdeModulePkg.decIntelFrameworkModulePkg/IntelFrameworkModulePkg.dec[LibraryClasses]# UefiDriverEntryPointMemoryAllocationLibUefiBootServicesTableLibDebugLibUefiLibWheaPlatformHooksLibUefiApplicationEntryPointAmiDxeLibUefiUsbLibUefiLibIoLib# ShellCEntryLib# UefiShellDebug1CommandsLib[Protocols]gEfiSmbiosProtocolGuid[Guids]gEfiSmbiosTableGuid
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