CmGetDeviceInterfaceRegKeyPath

NTSTATUS __stdcall CmGetDeviceInterfaceRegKeyPath(
        HPNPCTX *hPnpCtx,
        const WCHAR *DeviceInterfaceName,
        _CM_KEY_TYPE CmKeyTypeFlags,
        UINT64 HardwareProfileId,
        UINT8 Create,
        WCHAR *BaseKeyPath,
        UINT64 BaseKeyLength,
        UINT64 *RequiredLength){
  int v8; 
  __int16 v9; 
  UINT8 v10; 
  VOID **v11; 
  unsigned int v12; 
  char v13; 
  __int64 v14; 
  __int64 v15; 
  unsigned __int64 v16; 
  VOID **PoolWithTag; 
  WCHAR *v18; 
  WCHAR *v19; 
  int DeviceInterfaceSubkeyPath; 
  WCHAR **v21; 
  int v22; 
  __int64 v23; 
  __int64 v24; 
  unsigned __int64 v25; 
  NTSTATUS v26; 
  __int64 v28; 
  WCHAR **v29; 
  __int64 v30; 
  UINT64 *SubkeyPathLength; 
  UINT64 *SubkeyPathLengtha; 
  UINT64 pszFormat; 
  UINT64 pszFormata; 
  __int16 SubkeyPath[40]; 

  v8 = HardwareProfileId;
  v9 = CmKeyTypeFlags;
  v10 = (unsigned __int8)DeviceInterfaceName;
  v11 = 0i64;
  if( CmKeyTypeFlags == CM_KEY_TYPE_NONE || (CmKeyTypeFlags & 0xFFFFFCCC) != 0 )
    goto LABEL_54;
  v12 = (unsigned __int8)CmKeyTypeFlags;
  if( (((unsigned __int8)CmKeyTypeFlags - 48) & 0xFFFFFFFD) != 0 )
  {
    if( (unsigned __int8)CmKeyTypeFlags != CM_KEY_TYPE_DEVICE_INTERFACE_SYMLINK )
      return -1073741811;
    v13 = 0;
  }
  else
  {
    v13 = 1;
  }
  v14 = -1i64;
  v15 = -1i64;
  do
    ++v15;
  while( DeviceInterfaceName[v15] );
  v16 = 2 * v15 + 6;
  if( v16 > 0xFFFFFFFF )
    return -1073741675;
  PoolWithTag = ExAllocatePoolWithTag(1ui64, (unsigned int)v16, 1380994640i64);
  v11 = PoolWithTag;
  if( !PoolWithTag )
    return -1073741801;
  LODWORD(pszFormat) = (unsigned int)v16 >> 1;
  LOBYTE(v19) = v13;
  DeviceInterfaceSubkeyPath = CmGetDeviceInterfaceSubkeyPath(v18, v10, v19, (WCHAR *)SubkeyPath, (UINT64)PoolWithTag);
  if( DeviceInterfaceSubkeyPath < 0 )
    goto LABEL_27;
  v22 = v9 & 0x200;
  if( !v22 )
  {
    v23 = -1i64;
    do
      ++v23;
    while( SubkeyPath[v23] );
    v24 = v23 + 48;
    goto LABEL_14;
  }
  if( !v8 )
  {
    v28 = -1i64;
    do
      ++v28;
    while( SubkeyPath[v28] );
    v24 = v28 + 99;
    goto LABEL_14;
  }
  if( v8 == -1 )
  {
LABEL_54:
    DeviceInterfaceSubkeyPath = -1073741811;
    goto LABEL_27;
  }
  v30 = -1i64;
  do
    ++v30;
  while( SubkeyPath[v30] );
  v24 = v30 + 96;
  do
LABEL_14:
    ++v14;
  while( *((_WORD *)v11 + v14) );
  v25 = v24 + v14 + 1;
  if( v12 < 0x30 )
    goto LABEL_51;
  if( v12 <= 0x31 )
    goto LABEL_17;
  if( v12 == 50 )
    v25 += 18i64;
  else
LABEL_51:
    DeviceInterfaceSubkeyPath = -1073741811;
LABEL_17:
  if( DeviceInterfaceSubkeyPath >= 0 )
  {
    if( v25 > 0xFFFFFFFF )
    {
      DeviceInterfaceSubkeyPath = -1073741675;
    }
    else
    {
      DeviceInterfaceSubkeyPath = 0;
      if( RequiredLength )
        *(_DWORD *)RequiredLength = v25;
      if( (unsigned int)v25 <= (unsigned int)BaseKeyLength )
      {
        if( v22 )
        {
          if( v8 )
          {
            if( v8 == -1 )
              goto LABEL_25;
            LODWORD(SubkeyPathLength) = 2048;
            v26 = RtlStringCchPrintfExW(
                    BaseKeyPath,
                    (unsigned int)BaseKeyLength,
                    0i64,
                    0i64,
                    (UINT64)SubkeyPathLength,
                    (WCHAR *)L"%s\\%04u\\%s\\%s\\%s");
          }
          else
          {
            LODWORD(SubkeyPathLength) = 2048;
            v26 = RtlStringCchPrintfExW(
                    BaseKeyPath,
                    (unsigned int)BaseKeyLength,
                    0i64,
                    0i64,
                    (UINT64)SubkeyPathLength,
                    (WCHAR *)L"%s\\%s\\%s\\%s");
          }
        }
        else
        {
          LODWORD(SubkeyPathLength) = 2048;
          v26 = RtlStringCchPrintfExW(
                  BaseKeyPath,
                  (unsigned int)BaseKeyLength,
                  0i64,
                  0i64,
                  (UINT64)SubkeyPathLength,
                  (WCHAR *)L"%s\\%s\\%s");
        }
        DeviceInterfaceSubkeyPath = v26;
LABEL_25:
        if( DeviceInterfaceSubkeyPath >= 0 && v12 == 50 )
        {
          DeviceInterfaceSubkeyPath = RtlStringCchCatExW(
                                        BaseKeyPath,
                                        (unsigned int)BaseKeyLength,
                                        (WCHAR *)L"\\",
                                        v21,
                                        SubkeyPathLength,
                                        pszFormat);
          if( DeviceInterfaceSubkeyPath >= 0 )
            DeviceInterfaceSubkeyPath = RtlStringCchCatExW(
                                          BaseKeyPath,
                                          (unsigned int)BaseKeyLength,
                                          (WCHAR *)L"Device Parameters",
                                          v29,
                                          SubkeyPathLengtha,
                                          pszFormata);
        }
        goto LABEL_27;
      }
      DeviceInterfaceSubkeyPath = -1073741789;
    }
  }
LABEL_27:
  if( v11 )
    ExFreePoolWithTag(v11, 0);
  return DeviceInterfaceSubkeyPath;
}

Referenced by: