PiDevCfgConfigureDeviceInterfaces

NTSTATUS __stdcall PiDevCfgConfigureDeviceInterfaces(
        WCHAR *DeviceInstanceId,
        VOID *ConfigurationKeyHandle,
        PI_DEVCFG_RESOLVE_CONTEXT *ResolveContext){
  INT64 v3; 
  const wchar_t *v4; 
  NTSTATUS v7; 
  INT64 v8; 
  int MatchingFilteredDeviceInterfaceList; 
  NTSTATUS v11; 
  VOID **PoolWithTag; 
  unsigned int v13; 
  NTSTATUS i; 
  INT64 v15; 
  char v16; 
  NTSTATUS v17; 
  int v18; 
  unsigned __int16 v19; 
  __int64 v20; 
  UINT8 *MatchCallbackRoutine; 
  UINT8 *MatchCallbackRoutinea; 
  UINT8 *MatchCallbackRoutineb; 
  UINT8 *MatchCallbackRoutinec; 
  INT64 v25; 
  INT64 v26; 
  INT64 v27; 
  WCHAR *v28; 
  WCHAR *v29; 
  WCHAR *v30; 
  INT64 v31; 
  INT64 v32; 
  INT64 v33; 
  VOID *MatchCallbackContext; 
  VOID *Handle; 
  UINT64 BufferLength; 
  UINT64 *RequiredLength; 
  VOID *KeyHandle; 
  _UNICODE_STRING InterfaceKeyName; 
  UINT64 VariableModifiers; 
  WCHAR *ReferenceString; 
  _OBJECT_ATTRIBUTES ObjectAttributes; 
  _UNICODE_STRING v43; 
  _UNICODE_STRING DestinationString; 
  HPNPCTX v45[4]; 
  __int64 v46; 
  _UNICODE_STRING VariableName; 
  _GUID InterfaceClassGuid; 

  v4 = 0i64;
  ObjectAttributes.RootDirectory = ConfigurationKeyHandle;
  Handle = 0i64;
  *(_QWORD *)&InterfaceKeyName.Length = 1441812i64;
  v46 = 0i64;
  ReferenceString = 0i64;
  InterfaceKeyName.Buffer = L"Interfaces";
  RequiredLength = 0i64;
  ObjectAttributes.ObjectName = &InterfaceKeyName;
  LODWORD(BufferLength) = 0;
  *(_QWORD *)&ObjectAttributes.Length = 48i64;
  *(_QWORD *)&ObjectAttributes.Attributes = 576i64;
  *(_OWORD *)v45 = 0i64;
  KeyHandle = 0i64;
  DestinationString = 0i64;
  VariableName = 0i64;
  InterfaceClassGuid = 0i64;
  *(_OWORD *)&ObjectAttributes.SecurityDescriptor = 0i64;
  v7 = ZwOpenKey(&KeyHandle, 0x20019ui64, &ObjectAttributes, v3, (INT64)MatchCallbackRoutine, v25, (INT64)v28, v31);
  MatchingFilteredDeviceInterfaceList = v7;
  if( v7 == -1073741772 )
  {
    MatchingFilteredDeviceInterfaceList = 0;
    goto LABEL_3;
  }
  if( v7 < 0 )
    goto LABEL_3;
  *(_DWORD *)&InterfaceKeyName.Length = 262146;
  InterfaceKeyName.Buffer = (wchar_t *)L"*";
  ObjectAttributes.RootDirectory = KeyHandle;
  *(_QWORD *)&ObjectAttributes.Length = 48i64;
  ObjectAttributes.ObjectName = &InterfaceKeyName;
  *(_QWORD *)&ObjectAttributes.Attributes = 576i64;
  *(_OWORD *)&ObjectAttributes.SecurityDescriptor = 0i64;
  v11 = ZwOpenKey(&Handle, 0x20019ui64, &ObjectAttributes, v8, (INT64)MatchCallbackRoutinea, v26, (INT64)v29, v32);
  MatchingFilteredDeviceInterfaceList = v11;
  if( v11 == -1073741772 )
    goto LABEL_13;
  if( v11 < 0 )
    goto LABEL_3;
  LODWORD(MatchCallbackContext) = 0;
  *(_QWORD *)v45 = Handle;
  *(_QWORD *)&v45[2] = ResolveContext;
  LODWORD(v46) = 0;
  MatchingFilteredDeviceInterfaceList = CmGetMatchingFilteredDeviceInterfaceList(
                                          *(&stru_140CF2E80 + 607),
                                          0i64,
                                          DeviceInstanceId,
                                          0i64,
                                          (UINT8 *)PiDevCfgConfigureDeviceInterfaceCallback,
                                          v45,
                                          0i64,
                                          CM_OBJECT_TYPE_NONE,
                                          &BufferLength,
                                          MatchCallbackContext,
                                          (WCHAR *)Handle,
                                          BufferLength,
                                          RequiredLength,
                                          (UINT64)KeyHandle);
  ZwClose((_HANDLE)Handle);
  Handle = 0i64;
  if( MatchingFilteredDeviceInterfaceList >= 0 )
  {
    MatchingFilteredDeviceInterfaceList = v46;
    if( (int)v46 >= 0 )
    {
LABEL_13:
      PoolWithTag = ExAllocatePoolWithTag(1ui64, 0x26Eui64, 1667526736i64);
      if( !PoolWithTag )
      {
        MatchingFilteredDeviceInterfaceList = -1073741670;
        goto LABEL_3;
      }
      v13 = 0;
      LODWORD(MatchCallbackRoutineb) = 622;
      for( i = ZwEnumerateKey(
                  KeyHandle,
                  0i64,
                  KeyBasicInformation,
                  PoolWithTag,
                  (UINT64)MatchCallbackRoutineb,
                  &BufferLength);
            ;
            i = ZwEnumerateKey(
                  KeyHandle,
                  v13,
                  KeyBasicInformation,
                  PoolWithTag,
                  (UINT64)MatchCallbackRoutinec,
                  &BufferLength) )
      {
        MatchingFilteredDeviceInterfaceList = i;
        if( i < 0 )
        {
          if( i == -2147483622 )
          {
            MatchingFilteredDeviceInterfaceList = 0;
          }
          else if( i == -2147483643 )
          {
            MatchingFilteredDeviceInterfaceList = -1073741773;
          }
          goto LABEL_51;
        }
        *((_WORD *)PoolWithTag + ((unsigned __int64)*((unsigned int *)PoolWithTag + 3) >> 1) + 8) = 0;
        if( wcsicmp((const wchar_t *)PoolWithTag + 8, L"*") )
          break;
LABEL_45:
        ++v13;
        LODWORD(MatchCallbackRoutinec) = 622;
      }
      MatchingFilteredDeviceInterfaceList = RtlInitUnicodeStringEx(&DestinationString, (WCHAR *)PoolWithTag + 8);
      if( MatchingFilteredDeviceInterfaceList < 0 )
        goto LABEL_51;
      v43 = DestinationString;
      ObjectAttributes.RootDirectory = KeyHandle;
      *(_QWORD *)&ObjectAttributes.Length = 48i64;
      ObjectAttributes.ObjectName = &DestinationString;
      *(_OWORD *)&ObjectAttributes.SecurityDescriptor = 0i64;
      *(_QWORD *)&ObjectAttributes.Attributes = 576i64;
      Handle = 0i64;
      MatchingFilteredDeviceInterfaceList = ZwOpenKey(
                                              &Handle,
                                              0x20019ui64,
                                              &ObjectAttributes,
                                              v15,
                                              (INT64)MatchCallbackRoutinec,
                                              v27,
                                              (INT64)v30,
                                              v33);
      if( MatchingFilteredDeviceInterfaceList < 0 )
        goto LABEL_51;
      LODWORD(VariableModifiers) = 0;
      if( !ResolveContext )
        goto LABEL_39;
      if( !*((_QWORD *)ResolveContext + 2) )
        goto LABEL_39;
      PiDevCfgParseVariableName(DestinationString.Buffer, &VariableName, &VariableModifiers);
      if( !v16 )
        goto LABEL_39;
      VariableModifiers = 0i64;
      v17 = PiDevCfgResolveVariable(
              ResolveContext,
              VariableName.Buffer,
              (_PI_DEVCFG_VARIABLE_ENTRY **)&VariableModifiers);
      MatchingFilteredDeviceInterfaceList = v17;
      if( v17 < 0 )
      {
        if( v17 == -1073741772 )
        {
          v43 = VariableName;
          goto LABEL_39;
        }
      }
      else
      {
        v18 = *(_DWORD *)(VariableModifiers + 32);
        if( (unsigned int)(v18 - 1) <= 1 )
        {
          v19 = *(_WORD *)(VariableModifiers + 36);
          v43.Buffer = *(wchar_t **)(VariableModifiers + 40);
          v43.MaximumLength = v19;
          v43.Length = v19 - 2;
LABEL_28:
          if( v4 )
          {
            if( *v4 )
            {
              while( 1 )
              {
                RtlInitUnicodeString(&InterfaceKeyName, v4);
                if( PiDevCfgParseInterfaceKeyName(&InterfaceKeyName, &InterfaceClassGuid, &ReferenceString) )
                {
                  MatchingFilteredDeviceInterfaceList = IopRegisterDeviceInterface(
                                                          DeviceInstanceId,
                                                          &InterfaceClassGuid,
                                                          ReferenceString,
                                                          1u,
                                                          (WCHAR **)&RequiredLength,
                                                          0i64);
                  if( MatchingFilteredDeviceInterfaceList < 0 )
                    break;
                  MatchingFilteredDeviceInterfaceList = PiDevCfgConfigureDeviceInterface(
                                                          (WCHAR *)RequiredLength,
                                                          Handle,
                                                          ResolveContext);
                  ExFreePoolWithTag(RequiredLength, 0);
                  if( MatchingFilteredDeviceInterfaceList < 0 )
                    break;
                }
                v20 = -1i64;
                do
                  ++v20;
                while( v4[v20] );
                v4 += v20 + 1;
                if( !*v4 )
                  goto LABEL_36;
              }
LABEL_51:
              ExFreePoolWithTag(PoolWithTag, 0);
LABEL_3:
              if( Handle )
                ZwClose((_HANDLE)Handle);
              goto LABEL_5;
            }
LABEL_36:
            v4 = 0i64;
            goto LABEL_42;
          }
LABEL_39:
          v4 = 0i64;
          if( !PiDevCfgParseInterfaceKeyName(&v43, &InterfaceClassGuid, &ReferenceString) )
          {
LABEL_43:
            ZwClose((_HANDLE)Handle);
            goto LABEL_44;
          }
          MatchingFilteredDeviceInterfaceList = IopRegisterDeviceInterface(
                                                  DeviceInstanceId,
                                                  &InterfaceClassGuid,
                                                  ReferenceString,
                                                  1u,
                                                  (WCHAR **)&RequiredLength,
                                                  0i64);
          if( MatchingFilteredDeviceInterfaceList < 0 )
            goto LABEL_51;
          MatchingFilteredDeviceInterfaceList = PiDevCfgConfigureDeviceInterface(
                                                  (WCHAR *)RequiredLength,
                                                  Handle,
                                                  ResolveContext);
          ExFreePoolWithTag(RequiredLength, 0);
LABEL_42:
          if( MatchingFilteredDeviceInterfaceList < 0 )
            goto LABEL_51;
          goto LABEL_43;
        }
        if( v18 == 7 )
        {
          v4 = *(const wchar_t **)(VariableModifiers + 40);
          goto LABEL_28;
        }
      }
      ZwClose((_HANDLE)Handle);
      v4 = 0i64;
LABEL_44:
      Handle = 0i64;
      goto LABEL_45;
    }
  }
LABEL_5:
  if( KeyHandle )
    ZwClose((_HANDLE)KeyHandle);
  return MatchingFilteredDeviceInterfaceList;
}

Referenced by: