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374 lines
8.9 KiB
374 lines
8.9 KiB
4 years ago
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/** @file
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API for SMBIOS table.
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Copyright (c) 2005 - 2018, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "UefiShellDebug1CommandsLib.h"
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#include <Guid/SmBios.h>
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#include "LibSmbiosView.h"
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#include "SmbiosView.h"
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STATIC UINT8 mInit = 0;
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STATIC UINT8 m64Init = 0;
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STATIC SMBIOS_TABLE_ENTRY_POINT *mSmbiosTable = NULL;
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STATIC SMBIOS_TABLE_3_0_ENTRY_POINT *mSmbios64BitTable = NULL;
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STATIC SMBIOS_STRUCTURE_POINTER m_SmbiosStruct;
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STATIC SMBIOS_STRUCTURE_POINTER *mSmbiosStruct = &m_SmbiosStruct;
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STATIC SMBIOS_STRUCTURE_POINTER m_Smbios64BitStruct;
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STATIC SMBIOS_STRUCTURE_POINTER *mSmbios64BitStruct = &m_Smbios64BitStruct;
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/**
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Init the SMBIOS VIEW API's environment.
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@retval EFI_SUCCESS Successful to init the SMBIOS VIEW Lib.
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**/
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EFI_STATUS
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LibSmbiosInit (
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VOID
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)
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{
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EFI_STATUS Status;
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//
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// Init only once
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//
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if (mInit == 1) {
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return EFI_SUCCESS;
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}
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//
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// Get SMBIOS table from System Configure table
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//
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Status = GetSystemConfigurationTable (&gEfiSmbiosTableGuid, (VOID**)&mSmbiosTable);
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if (mSmbiosTable == NULL) {
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return EFI_NOT_FOUND;
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}
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if (EFI_ERROR (Status)) {
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ShellPrintHiiEx(-1,-1,NULL,STRING_TOKEN (STR_SMBIOSVIEW_LIBSMBIOSVIEW_GET_TABLE_ERROR), gShellDebug1HiiHandle, Status);
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return Status;
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}
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//
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// Init SMBIOS structure table address
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//
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mSmbiosStruct->Raw = (UINT8 *) (UINTN) (mSmbiosTable->TableAddress);
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mInit = 1;
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return EFI_SUCCESS;
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}
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/**
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Init the SMBIOS VIEW API's environment.
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@retval EFI_SUCCESS Successful to init the SMBIOS VIEW Lib.
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**/
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EFI_STATUS
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LibSmbios64BitInit (
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VOID
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)
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{
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EFI_STATUS Status;
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//
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// Init only once
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//
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if (m64Init == 1) {
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return EFI_SUCCESS;
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}
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//
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// Get SMBIOS table from System Configure table
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//
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Status = GetSystemConfigurationTable (&gEfiSmbios3TableGuid, (VOID**)&mSmbios64BitTable);
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if (mSmbios64BitTable == NULL) {
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return EFI_NOT_FOUND;
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}
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if (EFI_ERROR (Status)) {
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ShellPrintHiiEx(-1,-1,NULL,STRING_TOKEN (STR_SMBIOSVIEW_LIBSMBIOSVIEW_GET_TABLE_ERROR), gShellDebug1HiiHandle, Status);
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return Status;
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}
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//
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// Init SMBIOS structure table address
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//
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mSmbios64BitStruct->Raw = (UINT8 *) (UINTN) (mSmbios64BitTable->TableAddress);
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m64Init = 1;
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return EFI_SUCCESS;
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}
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/**
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Cleanup the Smbios information.
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**/
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VOID
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LibSmbiosCleanup (
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VOID
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)
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{
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//
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// Release resources
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//
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if (mSmbiosTable != NULL) {
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mSmbiosTable = NULL;
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}
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mInit = 0;
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}
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/**
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Cleanup the Smbios information.
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**/
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VOID
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LibSmbios64BitCleanup (
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VOID
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)
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{
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//
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// Release resources
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//
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if (mSmbios64BitTable != NULL) {
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mSmbios64BitTable = NULL;
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}
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m64Init = 0;
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}
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/**
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Get the entry point structure for the table.
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@param[out] EntryPointStructure The pointer to populate.
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**/
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VOID
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LibSmbiosGetEPS (
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OUT SMBIOS_TABLE_ENTRY_POINT **EntryPointStructure
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)
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{
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//
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// return SMBIOS Table address
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//
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*EntryPointStructure = mSmbiosTable;
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}
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/**
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Get the entry point structure for the table.
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@param[out] EntryPointStructure The pointer to populate.
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**/
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VOID
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LibSmbios64BitGetEPS (
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OUT SMBIOS_TABLE_3_0_ENTRY_POINT **EntryPointStructure
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)
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{
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//
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// return SMBIOS Table address
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//
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*EntryPointStructure = mSmbios64BitTable;
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}
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/**
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Return SMBIOS string for the given string number.
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@param[in] Smbios Pointer to SMBIOS structure.
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@param[in] StringNumber String number to return. -1 is used to skip all strings and
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point to the next SMBIOS structure.
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@return Pointer to string, or pointer to next SMBIOS strcuture if StringNumber == -1
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**/
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CHAR8*
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LibGetSmbiosString (
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IN SMBIOS_STRUCTURE_POINTER *Smbios,
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IN UINT16 StringNumber
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)
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{
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UINT16 Index;
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CHAR8 *String;
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ASSERT (Smbios != NULL);
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//
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// Skip over formatted section
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//
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String = (CHAR8 *) (Smbios->Raw + Smbios->Hdr->Length);
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//
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// Look through unformated section
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//
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for (Index = 1; Index <= StringNumber; Index++) {
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if (StringNumber == Index) {
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return String;
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}
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//
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// Skip string
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//
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for (; *String != 0; String++);
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String++;
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if (*String == 0) {
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//
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// If double NULL then we are done.
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// Return pointer to next structure in Smbios.
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// if you pass in a -1 you will always get here
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//
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Smbios->Raw = (UINT8 *)++String;
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return NULL;
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}
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}
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return NULL;
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}
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/**
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Get SMBIOS structure for the given Handle,
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Handle is changed to the next handle or 0xFFFF when the end is
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reached or the handle is not found.
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@param[in, out] Handle 0xFFFF: get the first structure
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Others: get a structure according to this value.
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@param[out] Buffer The pointer to the pointer to the structure.
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@param[out] Length Length of the structure.
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@retval DMI_SUCCESS Handle is updated with next structure handle or
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0xFFFF(end-of-list).
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@retval DMI_INVALID_HANDLE Handle is updated with first structure handle or
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0xFFFF(end-of-list).
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**/
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EFI_STATUS
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LibGetSmbiosStructure (
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IN OUT UINT16 *Handle,
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OUT UINT8 **Buffer,
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OUT UINT16 *Length
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)
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{
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SMBIOS_STRUCTURE_POINTER Smbios;
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SMBIOS_STRUCTURE_POINTER SmbiosEnd;
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UINT8 *Raw;
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if (*Handle == INVALID_HANDLE) {
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*Handle = mSmbiosStruct->Hdr->Handle;
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return DMI_INVALID_HANDLE;
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}
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if ((Buffer == NULL) || (Length == NULL)) {
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ShellPrintHiiEx(-1,-1,NULL,STRING_TOKEN (STR_SMBIOSVIEW_LIBSMBIOSVIEW_NO_BUFF_LEN_SPEC), gShellDebug1HiiHandle);
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return DMI_INVALID_HANDLE;
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}
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*Length = 0;
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Smbios.Hdr = mSmbiosStruct->Hdr;
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SmbiosEnd.Raw = Smbios.Raw + mSmbiosTable->TableLength;
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while (Smbios.Raw < SmbiosEnd.Raw) {
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if (Smbios.Hdr->Handle == *Handle) {
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Raw = Smbios.Raw;
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//
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// Walk to next structure
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//
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LibGetSmbiosString (&Smbios, (UINT16) (-1));
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//
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// Length = Next structure head - this structure head
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//
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*Length = (UINT16) (Smbios.Raw - Raw);
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*Buffer = Raw;
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//
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// update with the next structure handle.
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//
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if (Smbios.Raw < SmbiosEnd.Raw) {
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*Handle = Smbios.Hdr->Handle;
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} else {
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*Handle = INVALID_HANDLE;
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}
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return DMI_SUCCESS;
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}
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//
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// Walk to next structure
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//
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LibGetSmbiosString (&Smbios, (UINT16) (-1));
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}
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*Handle = INVALID_HANDLE;
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return DMI_INVALID_HANDLE;
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}
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/**
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Get SMBIOS structure for the given Handle,
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Handle is changed to the next handle or 0xFFFF when the end is
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reached or the handle is not found.
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@param[in, out] Handle 0xFFFF: get the first structure
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Others: get a structure according to this value.
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@param[out] Buffer The pointer to the pointer to the structure.
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@param[out] Length Length of the structure.
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@retval DMI_SUCCESS Handle is updated with next structure handle or
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0xFFFF(end-of-list).
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@retval DMI_INVALID_HANDLE Handle is updated with first structure handle or
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0xFFFF(end-of-list).
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**/
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EFI_STATUS
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LibGetSmbios64BitStructure (
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IN OUT UINT16 *Handle,
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OUT UINT8 **Buffer,
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OUT UINT16 *Length
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)
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{
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SMBIOS_STRUCTURE_POINTER Smbios;
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SMBIOS_STRUCTURE_POINTER SmbiosEnd;
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UINT8 *Raw;
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if (*Handle == INVALID_HANDLE) {
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*Handle = mSmbios64BitStruct->Hdr->Handle;
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return DMI_INVALID_HANDLE;
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}
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if ((Buffer == NULL) || (Length == NULL)) {
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ShellPrintHiiEx(-1,-1,NULL,STRING_TOKEN (STR_SMBIOSVIEW_LIBSMBIOSVIEW_NO_BUFF_LEN_SPEC), gShellDebug1HiiHandle);
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return DMI_INVALID_HANDLE;
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}
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*Length = 0;
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Smbios.Hdr = mSmbios64BitStruct->Hdr;
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SmbiosEnd.Raw = Smbios.Raw + mSmbios64BitTableLength;
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while (Smbios.Raw < SmbiosEnd.Raw) {
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if (Smbios.Hdr->Handle == *Handle) {
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Raw = Smbios.Raw;
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//
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// Walk to next structure
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//
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LibGetSmbiosString (&Smbios, (UINT16) (-1));
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//
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// Length = Next structure head - this structure head
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//
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*Length = (UINT16) (Smbios.Raw - Raw);
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*Buffer = Raw;
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//
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// update with the next structure handle.
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//
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if (Smbios.Raw < SmbiosEnd.Raw) {
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*Handle = Smbios.Hdr->Handle;
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} else {
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*Handle = INVALID_HANDLE;
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}
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return DMI_SUCCESS;
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}
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//
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// Walk to next structure
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//
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LibGetSmbiosString (&Smbios, (UINT16) (-1));
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}
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*Handle = INVALID_HANDLE;
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return DMI_INVALID_HANDLE;
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}
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