BgpFwAllocateMemory

NTSTATUS __stdcall BgpFwAllocateMemory(UINT64 Size){
  int v1; 
  char *v2; 
  MDL *v3; 
  unsigned int v4; 
  __int64 v5; 
  unsigned __int64 v6; 
  char *PoolWithTag; 
  __int64 v8; 
  char *v9; 
  PMDL PagesForMdl; 
  if( !Size )
    return 0;
  if( (dword_140C13310 & 0x800) == 0 )
  {
    v1 = dword_140C13310 & 0x8000;
    LODWORD(v2) = 0;
    v3 = 0i64;
    v4 = v1 != 0 ? 1262634818 : 1263093570;
    v5 = v1 != 0 ? 48i64 : 32i64;
    v6 = v5 + Size;
    if( v5 + Size >= Size && v6 < 0xFFFFEFFF )
    {
      if( v6 < 0x1000 )
      {
        PoolWithTag = (char *)ExAllocatePoolWithTag(NonPagedPoolNx, v5 + Size, v4);
LABEL_7:
        if( !PoolWithTag )
          goto LABEL_20;
        v2 = &PoolWithTag[v5];
        if( v1 )
        {
          v8 = qword_140C133E0;
          v9 = v2 - 40;
          if( *(__int64 **)(qword_140C133E0 + 8) != &qword_140C133E0 )
            __fastfail(3u);
          *(_QWORD *)v9 = qword_140C133E0;
          *((_QWORD *)v9 + 1) = &qword_140C133E0;
          *(_QWORD *)(v8 + 8) = v9;
          qword_140C133E0 = (__int64)(v2 - 40);
        }
        *((_DWORD *)v2 - 6) = v4;
        *((_QWORD *)v2 - 2) = v6;
        *((_QWORD *)v2 - 1) = v3;
        if( !v2 )
        {
LABEL_20:
          if( v3 )
          {
            MiFreePagesFromMdl(v3, 0i64);
            ExFreeHeapPool(v3);
          }
        }
        return(int)v2;
      }
      v6 = (v6 + 4095) & 0xFFFFFFFFFFFFF000ui64;
      PagesForMdl = MmAllocatePagesForMdlEx(0i64, MmNotMapped, 0);
      v3 = PagesForMdl;
      if( PagesForMdl )
      {
        if( (PagesForMdl->MdlFlags & 5) != 0 )
          PoolWithTag = (char *)PagesForMdl->MappedSystemVa;
        else
          PoolWithTag = (char *)MmMapLockedPagesSpecifyCache(PagesForMdl, 0, MmCached, 0i64, 0, 0x40000010u);
        goto LABEL_7;
      }
    }
    return(int)v2;
  }
  return BgpFwReserveAllocate(Size);
}

Referenced by: