HvValidateOrInvalidatePrimaryFileHeader

INT64 __fastcall HvValidateOrInvalidatePrimaryFileHeader(INT64 a1, CHAR a2, CHAR a3, CHAR a4){
  int v7; 
  _DWORD *v8; 
  int v9; 
  int v10; 
  __int64(__fastcall *v11)(INT64, _QWORD, int *, __int64, int); 
  int v12; 
  _DWORD *PoolWithTag; 
  _OWORD *v15; 
  __int64 v16; 
  _OWORD *v17; 
  __int128 v18; 
  int v19[2]; 
  _DWORD *v20; 
  int v21; 
  int v22; 
  v19[1] = 0;
  v22 = 0;
  if( *(_QWORD *)(a1 + 1536) )
  {
    v7 = a4 & 1;
    if( a3 )
    {
      v8 = *(_DWORD **)(a1 + 1768);
    }
    else
    {
      PoolWithTag = ExAllocatePoolWithTag(PagedPool, 0x1000ui64, 0x6F494D43ui64);
      v8 = PoolWithTag;
      if( !PoolWithTag )
        return(unsigned int)-1073741801;
      memset((INT64)PoolWithTag, 0i64);
      v15 = *(_OWORD **)(a1 + 64);
      v16 = 4i64;
      v17 = v8;
      do
      {
        *v17 = *v15;
        v17[1] = v15[1];
        v17[2] = v15[2];
        v17[3] = v15[3];
        v17[4] = v15[4];
        v17[5] = v15[5];
        v17[6] = v15[6];
        v17 += 8;
        v18 = v15[7];
        v15 += 8;
        *(v17 - 1) = v18;
        --v16;
      }
      while( v16 );
    }
    v9 = *(_DWORD *)(a1 + 168);
    v10 = v9 - 1;
    if( a2 )
      v10 = *(_DWORD *)(a1 + 168);
    v8[2] = v10;
    v8[1] = v9;
    v8[127] = HvpHeaderCheckSum(v8);
    v11 = *(__int64(__fastcall **)(INT64, _QWORD, int *, __int64, int))(a1 + 40);
    v19[0] = 0;
    v20 = v8;
    v21 = 4096;
    v12 = v11(a1, 0i64, v19, 1i64, v7);
    if( v12 >= 0 )
    {
      v12 = CmpFileFlushAndPurge(a1, 0i64);
      if( v12 >= 0 )
      {
        *(_BYTE *)(a1 + 190) = a2;
        v12 = 0;
        *(_DWORD *)(a1 + 180) = v8[2];
      }
    }
    if( !a3 )
      ExFreePoolWithTag(v8, 0);
  }
  else
  {
    return 0;
  }
  return(unsigned int)v12;
}

Referenced by: