public override void Extract(byte[] arr, uint offset)
{
version = (bit4)BitHelper.ExtractBits(arr, offset * 8, 4);
ihl = (bit4)BitHelper.ExtractBits(arr, offset * 8 + 4, 4);
diffserv = BitHelper.Extract8(arr, offset + 1);
totalLen = BitHelper.Extract16(arr, offset + 2);
identification = BitHelper.Extract16(arr, offset + 4);
flags = (bit3)BitHelper.ExtractBits(arr, offset + 48, 3);
fragOffset = BitHelper.ExtractBits(arr, offset + 51, 13);
ttl = BitHelper.Extract8(arr, offset + 8);
protocol = BitHelper.Extract8(arr, offset + 9);
hdrChecksum = BitHelper.Extract16(arr, offset + 10);
srcAddr = BitHelper.Extract32(arr, offset + 12);
dstAddr = BitHelper.Extract32(arr, offset + 16);
}
public override void Parse(byte[] data, uint offset)
{
offset *= 8;
version = BitHelper.Extract4(data, offset + 0);
ihl = BitHelper.Extract4(data, offset + 4);
diffserv = BitHelper.Extract8(data, offset + 8);
totalLen = BitHelper.Extract16(data, offset + 16);
identification = BitHelper.Extract16(data, offset + 32);
flags = BitHelper.ExtractN(data, offset + 48, 3);
fragOffset = BitHelper.ExtractN(data, offset + 51, 13);
ttl = BitHelper.Extract8(data, offset + 64);
protocol = BitHelper.Extract8(data, offset + 72);
hdrChecksum = BitHelper.Extract16(data, offset + 80);
srcAddr = BitHelper.Extract32(data, offset + 96);
dstAddr = BitHelper.Extract32(data, offset + 128);
length = 160;
setValid();
}