PfpPrefetchDirectoryStream

NTSTATUS __fastcall PfpPrefetchDirectoryStream(
        _PFP_PREFETCH_CONTEXT *PrefetchContext,
        INT64 a2,
        INT64 a3,
        INT64 a4,
        INT64 a5,
        INT64 a6){
  __int64 v6; 
  UINT64 InputBufferLength; 
  __int64 v10; 
  unsigned __int64 v11; 
  unsigned int v12; 
  __int64 v13; 
  NTSTATUS v14; 
  unsigned int v15; 
  unsigned int v16; 
  unsigned int v17; 
  __int64 v18; 
  unsigned __int64 v19; 
  unsigned __int64 v20; 
  unsigned __int64 v21; 
  UINT64 IoControlCode; 
  __int64 v24; 
  UINT64 v25[2]; 
  VOID *Handle; 
  __int128 v27; 
  __int64 v28; 
  unsigned int SublistMax; 

  v6 = *((_QWORD *)PrefetchContext + 5);
  InputBufferLength = *((_QWORD *)PrefetchContext + 3);
  *(_OWORD *)v25 = 0i64;
  v28 = 0x200000000i64;
  v10 = *(_QWORD *)PrefetchContext;
  v11 = 0i64;
  v24 = v6;
  Handle = 0i64;
  v12 = *(unsigned __int16 *)(v10 + 30);
  *(_DWORD *)InputBufferLength = 4;
  v13 = *(_QWORD *)PrefetchContext;
  SublistMax = v12;
  v27 = 0i64;
  *(_QWORD *)(InputBufferLength + 8) = (8 * (v12 & 7)) | (unsigned __int64)(*(_DWORD *)(v13 + 28) & 7);
  v14 = PfpOpenHandleCreate((__int64)&Handle, v6, *(_QWORD *)(a5 + 16), *(_QWORD *)(a5 + 8), 1048577, a6, 0, a2);
  if( v14 >= 0 )
  {
    if( (*(_DWORD *)(*(_QWORD *)PrefetchContext + 80i64) & 4) != 0 )
      MmQueryMemoryListInformation((VOID *)0xFFFFFFFFFFFFFFFFi64, (UINT64)(PrefetchContext + 12), (UINT64 *)0xB0);
    v15 = 0;
    while( v15 < *(_DWORD *)(a3 + 16) )
    {
      *(_DWORD *)(InputBufferLength + 4) = 0;
      if( v15 >= *(_DWORD *)(a3 + 16) )
        break;
      v16 = PrefetchContext[8];
      v17 = 0;
      do
      {
        v18 = *(_QWORD *)(a3 + 24);
        v19 = *(_QWORD *)(v18 + 16i64 * v15);
        v20 = v11;
        v21 = v19 + *(unsigned int *)(v18 + 16i64 * v15 + 8);
        if( v19 >= v11 )
          v20 = *(_QWORD *)(v18 + 16i64 * v15);
        while( v20 < v21 )
        {
          *(_QWORD *)(InputBufferLength + 8i64 * *(unsigned int *)(InputBufferLength + 4) + 16) = v20;
          v20 += 4096i64;
          v17 = *(_DWORD *)(InputBufferLength + 4) + 1;
          *(_DWORD *)(InputBufferLength + 4) = v17;
          v16 = PrefetchContext[8];
          if( v17 >= v16 )
          {
            v11 = v20;
            break;
          }
        }
        if( v17 >= v16 )
          break;
        ++v15;
      }
      while( v15 < *(_DWORD *)(a3 + 16) );
      if( !v17 )
        break;
      if( (unsigned int)PfpCheckPrefetchAbort(PrefetchContext)
        || (*(_DWORD *)(*(_QWORD *)PrefetchContext + 80i64) & 4) != 0
        && *((_QWORD *)PrefetchContext + 6)
         + *((_QWORD *)PrefetchContext + 7)
         + PfpGetPageListCount((UINT64 *)PrefetchContext + 11, 0i64, SublistMax) < 0x80 )
      {
        v14 = -1073741248;
        goto LABEL_24;
      }
      LODWORD(IoControlCode) = 590112;
      v14 = IopXxxControlFile(Handle, 0i64, 0i64, 0i64, v25, IoControlCode, InputBufferLength);
      if( (*(_DWORD *)(*(_QWORD *)PrefetchContext + 80i64) & 4) != 0 )
        PfpUpdateRepurposedByPrefetch((__int64)(PrefetchContext + 12), *(unsigned int *)(InputBufferLength + 4));
      if( v14 < 0 )
      {
        if( v14 == -1073741807 )
          break;
        goto LABEL_24;
      }
      if( v14 == 259 )
        KeBugCheckEx(0x191u, (PVOID)0x14BC, 0i64, 0i64, 0i64);
    }
    v14 = 0;
LABEL_24:
    v6 = v24;
  }
  if( (v28 & 0x400000000i64) != 0 )
    PfpOpenHandleClose(&Handle, v6);
  return v14;
}

Referenced by: