CmGetDeviceInterfaceMappedPropertyFromRegValue

NTSTATUS __stdcall CmGetDeviceInterfaceMappedPropertyFromRegValue(
        HPNPCTX *hPnpCtx,
        const WCHAR *DeviceInterfaceName,
        VOID *ObjectBaseKey,
        const _DEVPROPKEY *PropertyKey,
        UINT64 *PropertyType,
        UINT8 *PropertyBuffer,
        INT64 BufferSize,
        UINT64 *PropertySize){
  UINT64 *v8; 
  UINT64 *v10; 
  UINT64 *Disposition; 
  unsigned __int64 v12; 
  int IsDeviceInterfaceEnabled; 
  int v16; 
  unsigned int pid; 
  unsigned int v18; 
  DEVPROPKEY **v19; 
  DEVPROPKEY *v20; 
  DEVPROPKEY **v21; 
  NTSTATUS v22; 
  unsigned int v23; 
  __int64 v24; 
  int Value; 
  __int64 v27; 
  __int64 v28; 
  VOID *v29; 
  NTSTATUS v30; 
  UINT64 *v31; 
  INT64 DesiredAccess; 
  INT64 Create; 
  char Enabled[4]; 
  UINT64 DataSize; 
  INT64 v36; 
  VOID *Handle; 
  UINT64 DeviceInterfaceKey; 
  UINT8 Indirected; 

  v8 = PropertyType;
  v10 = PropertySize;
  Disposition = 0i64;
  v12 = (unsigned __int64)PropertyBuffer;
  DeviceInterfaceKey = 0i64;
  *(_DWORD *)PropertyType = 0;
  IsDeviceInterfaceEnabled = 0;
  *(_DWORD *)v10 = 0;
  Handle = 0i64;
  v36 = 0i64;
  DataSize = 0i64;
  Indirected = 0;
  Enabled[0] = 0;
  if( v12 )
  {
    v16 = BufferSize;
    v12 &= -(__int64)((_DWORD)BufferSize != 0);
    Disposition = 0i64;
  }
  else
  {
    v16 = 0;
  }
  pid = PropertyKey->pid;
  if( pid < 2 )
    return -1073741264;
  v18 = 0;
  v19 = &off_140983A68;
  while( 1 )
  {
    v20 = *v19;
    v21 = v19;
    if( pid == (*v19)->pid )
      break;
LABEL_6:
    ++v18;
    v19 += 2;
    v21 = 0i64;
    if( v18 >= 3 )
      goto LABEL_11;
  }
  Disposition = (UINT64 *)(*(_QWORD *)&PropertyKey->fmtid.Data1 - *(_QWORD *)&v20->fmtid.Data1);
  if( *(_QWORD *)&PropertyKey->fmtid.Data1 == *(_QWORD *)&v20->fmtid.Data1 )
    Disposition = (UINT64 *)(*(_QWORD *)PropertyKey->fmtid.Data4 - *(_QWORD *)v20->fmtid.Data4);
  if( Disposition )
  {
    Disposition = 0i64;
    goto LABEL_6;
  }
LABEL_11:
  if( !v21 )
    return -1073741264;
  if( ObjectBaseKey )
    goto LABEL_15;
  LOBYTE(Create) = (_BYTE)Disposition;
  LODWORD(DesiredAccess) = 1;
  v22 = CmOpenDeviceInterfaceRegKey(
          hPnpCtx,
          DeviceInterfaceName,
          48i64,
          (UINT64)v20,
          DesiredAccess,
          Create,
          (VOID **)&DeviceInterfaceKey,
          Disposition);
  Disposition = 0i64;
  IsDeviceInterfaceEnabled = v22;
  if( v22 >= 0 )
  {
    v8 = PropertyType;
LABEL_15:
    v23 = PropertyKey->pid;
    if( v23 == 2 )
    {
      v28 = *(_QWORD *)&PropertyKey->fmtid.Data1 - *(_QWORD *)&DEVPKEY_DeviceInterface_FriendlyName.fmtid.Data1;
      if( *(_QWORD *)&PropertyKey->fmtid.Data1 == *(_QWORD *)&DEVPKEY_DeviceInterface_FriendlyName.fmtid.Data1 )
        v28 = *(_QWORD *)PropertyKey->fmtid.Data4 - *(_QWORD *)DEVPKEY_DeviceInterface_FriendlyName.fmtid.Data4;
      if( v28 )
        goto LABEL_66;
      v29 = (VOID *)DeviceInterfaceKey;
      if( ObjectBaseKey )
        v29 = ObjectBaseKey;
      if( hPnpCtx )
        Disposition = (UINT64 *)*((_QWORD *)hPnpCtx + 28);
      v30 = SysCtxRegOpenKey((__int64)Disposition, v29, (const WCHAR *)L"Device Parameters", 0, 1u, (VOID **)&v36);
      if( v30 == -1073741772 || v30 == -1073741444 )
        goto LABEL_53;
      if( v30 < 0 )
      {
        IsDeviceInterfaceEnabled = v30;
        goto LABEL_27;
      }
      LODWORD(DataSize) = v16;
      Value = PnpCtxRegQueryValueIndirect(
                hPnpCtx,
                (VOID *)v36,
                (WCHAR *)L"FriendlyName",
                (UINT64 *)((char *)&DataSize + 4),
                (VOID *)v12,
                &DataSize,
                &Indirected);
      ZwClose(v36);
      if( Value == -1073741772 || Value == -1073741444 )
        goto LABEL_53;
      if( Value && Value != -1073741789 )
        goto LABEL_61;
      *(_DWORD *)PropertySize = DataSize;
      v31 = PropertyType;
      *(_DWORD *)PropertyType = 18;
      if( Value || !v16 )
        IsDeviceInterfaceEnabled = -1073741789;
      if( Indirected )
        *(_DWORD *)v31 = 25;
    }
    else
    {
      if( v23 != 3 )
      {
        if( v23 == 256 )
        {
          v24 = *(_QWORD *)&PropertyKey->fmtid.Data1 - *(_QWORD *)&DEVPKEY_Device_InstanceId.fmtid.Data1;
          if( *(_QWORD *)&PropertyKey->fmtid.Data1 == *(_QWORD *)&DEVPKEY_Device_InstanceId.fmtid.Data1 )
            v24 = *(_QWORD *)PropertyKey->fmtid.Data4 - *(_QWORD *)DEVPKEY_Device_InstanceId.fmtid.Data4;
          if( !v24 )
          {
            LOBYTE(Create) = (_BYTE)Disposition;
            LODWORD(DesiredAccess) = 1;
            IsDeviceInterfaceEnabled = CmOpenDeviceInterfaceRegKey(
                                         hPnpCtx,
                                         DeviceInterfaceName,
                                         49i64,
                                         (UINT64)v20,
                                         DesiredAccess,
                                         Create,
                                         &Handle,
                                         Disposition);
            if( IsDeviceInterfaceEnabled < 0 )
              goto LABEL_27;
            LODWORD(DataSize) = v16;
            Value = RegRtlQueryValue(
                      Handle,
                      L"DeviceInstance",
                      (_DWORD *)&DataSize + 1,
                      (VOID *)v12,
                      (__int64)&DataSize);
            ZwClose((_HANDLE)Handle);
            if( Value != -1073741772 && Value != -1073741444 )
            {
              if( !Value || Value == -1073741789 )
              {
                *(_DWORD *)PropertySize = DataSize;
                *(_DWORD *)PropertyType = 18;
                if( Value || !v16 )
                  IsDeviceInterfaceEnabled = -1073741789;
                goto LABEL_27;
              }
LABEL_61:
              IsDeviceInterfaceEnabled = Value;
              goto LABEL_27;
            }
LABEL_53:
            IsDeviceInterfaceEnabled = -1073741275;
            goto LABEL_27;
          }
        }
LABEL_66:
        IsDeviceInterfaceEnabled = -1073741264;
        goto LABEL_27;
      }
      v27 = *(_QWORD *)&PropertyKey->fmtid.Data1 - *(_QWORD *)&DEVPKEY_DeviceInterface_Enabled.fmtid.Data1;
      if( *(_QWORD *)&PropertyKey->fmtid.Data1 == *(_QWORD *)&DEVPKEY_DeviceInterface_Enabled.fmtid.Data1 )
        v27 = *(_QWORD *)PropertyKey->fmtid.Data4 - *(_QWORD *)DEVPKEY_DeviceInterface_Enabled.fmtid.Data4;
      if( v27 )
        goto LABEL_66;
      *(_DWORD *)PropertySize = 1;
      *(_DWORD *)v8 = 17;
      if( v16 )
      {
        IsDeviceInterfaceEnabled = CmIsDeviceInterfaceEnabled(hPnpCtx, DeviceInterfaceName, v19, (UINT8 *)Enabled);
        if( IsDeviceInterfaceEnabled >= 0 )
          *(_BYTE *)v12 = -(Enabled[0] != 0);
      }
      else
      {
        IsDeviceInterfaceEnabled = -1073741789;
      }
    }
  }
LABEL_27:
  if( DeviceInterfaceKey )
    ZwClose(DeviceInterfaceKey);
  return IsDeviceInterfaceEnabled;
}

Referenced by: