ValidatePlatformInfo.c

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#include "ocvalidate.h"
#include "OcValidateLib.h"
 
#include <Library/OcMacInfoLib.h>
#include <IndustryStandard/AppleSmBios.h>
 
STATIC
BOOLEAN
ValidateProcessorType (
  IN  UINT16  ProcessorType
  )
{
  UINTN               Index;
  STATIC CONST UINT8  AllowedProcessorType[] = {
    AppleProcessorMajorCore,
    AppleProcessorMajorCore2,
    AppleProcessorMajorXeonPenryn,
    AppleProcessorMajorXeonNehalem,
    AppleProcessorMajorI5,
    AppleProcessorMajorI7,
    AppleProcessorMajorI3,
    AppleProcessorMajorI9,
    AppleProcessorMajorXeonE5,
    AppleProcessorMajorM,
    AppleProcessorMajorM3,
    AppleProcessorMajorM5,
    AppleProcessorMajorM7,
    AppleProcessorMajorXeonW
  };
 
  //
  // 0 is allowed.
  //
  if (ProcessorType == 0U) {
    return TRUE;
  }
 
  for (Index = 0; Index < ARRAY_SIZE (AllowedProcessorType); ++Index) {
    if ((ProcessorType >> 8U) == AllowedProcessorType[Index]) {
      return TRUE;
    }
  }
 
  return FALSE;
}
 
//
// NOTE: Only PlatformInfo->Generic is checked here. The rest is ignored.
//
 
STATIC
UINT32
CheckPlatformInfoGeneric (
  IN  OC_GLOBAL_CONFIG  *Config
  )
{
  UINT32       ErrorCount;
  CONST CHAR8  *SystemProductName;
  CONST CHAR8  *SystemMemoryStatus;
  CONST CHAR8  *AsciiSystemUUID;
  UINT16       ProcessorType;
 
  ErrorCount = 0;
 
  SystemProductName = OC_BLOB_GET (&Config->PlatformInfo.Generic.SystemProductName);
  if (!HasMacInfo (SystemProductName)) {
    DEBUG ((DEBUG_WARN, "PlatformInfo->Generic->SystemProductName has unknown model set!\n"));
    ++ErrorCount;
  }
 
  SystemMemoryStatus = OC_BLOB_GET (&Config->PlatformInfo.Generic.SystemMemoryStatus);
  if (  (AsciiStrCmp (SystemMemoryStatus, "Auto") != 0)
     && (AsciiStrCmp (SystemMemoryStatus, "Upgradable") != 0)
     && (AsciiStrCmp (SystemMemoryStatus, "Soldered") != 0))
  {
    DEBUG ((DEBUG_WARN, "PlatformInfo->Generic->SystemMemoryStatus is borked (Can only be Auto, Upgradable, or Soldered)!\n"));
    ++ErrorCount;
  }
 
  AsciiSystemUUID = OC_BLOB_GET (&Config->PlatformInfo.Generic.SystemUuid);
  if (  (AsciiSystemUUID[0] != '\0')
     && (AsciiStrCmp (AsciiSystemUUID, "OEM") != 0)
     && !AsciiGuidIsLegal (AsciiSystemUUID))
  {
    DEBUG ((DEBUG_WARN, "PlatformInfo->Generic->SystemUUID is borked (Can only be empty, special string OEM or valid UUID)!\n"));
    ++ErrorCount;
  }
 
  ProcessorType = Config->PlatformInfo.Generic.ProcessorType;
  if (!ValidateProcessorType (ProcessorType)) {
    DEBUG ((DEBUG_WARN, "PlatformInfo->Generic->ProcessorType is borked!\n"));
    ++ErrorCount;
  }
 
  //
  // TODO: Sanitise MLB, ProcessorType, and SystemSerialNumber if possible...
  //
 
  return ErrorCount;
}
 
UINT32
CheckPlatformInfo (
  IN  OC_GLOBAL_CONFIG  *Config
  )
{
  UINT32               ErrorCount;
  BOOLEAN              IsAutomaticEnabled;
  CONST CHAR8          *UpdateSMBIOSMode;
  UINTN                Index;
  STATIC CONFIG_CHECK  PlatformInfoCheckers[] = {
    &CheckPlatformInfoGeneric
  };
 
  DEBUG ((DEBUG_VERBOSE, "config loaded into %a!\n", __func__));
 
  ErrorCount = 0;
 
  UpdateSMBIOSMode = OC_BLOB_GET (&Config->PlatformInfo.UpdateSmbiosMode);
  if (  (AsciiStrCmp (UpdateSMBIOSMode, "TryOverwrite") != 0)
     && (AsciiStrCmp (UpdateSMBIOSMode, "Create") != 0)
     && (AsciiStrCmp (UpdateSMBIOSMode, "Overwrite") != 0)
     && (AsciiStrCmp (UpdateSMBIOSMode, "Custom") != 0))
  {
    DEBUG ((DEBUG_WARN, "PlatformInfo->UpdateSMBIOSMode is borked (Can only be TryOverwrite, Create, Overwrite, or Custom)!\n"));
    ++ErrorCount;
  }
 
  IsAutomaticEnabled = Config->PlatformInfo.Automatic;
  if (!IsAutomaticEnabled) {
    //
    // This is not an error, but we need to stop checking further.
    //
    return ReportError (__func__, ErrorCount);
  }
 
  for (Index = 0; Index < ARRAY_SIZE (PlatformInfoCheckers); ++Index) {
    ErrorCount += PlatformInfoCheckers[Index](Config);
  }
 
  return ReportError (__func__, ErrorCount);
}