public byte[] encode()
{
int option_size = 0;
if (this.options_and_padding != null)
{
option_size = this.options_and_padding.Length;
}
int data_size = 0;
if (this.data != null)
{
data_size = this.data.Length;
}
if (this.b_comput_internet_header_length)
{
this.internet_header_length = (byte)(5 + option_size / 4);
}
ushort real_total_length = (UInt16)(20 + option_size + data_size);
if (this.b_comput_total_length)
{
this.total_length = real_total_length;
}
byte[] ret = new byte[this.total_length];
ret[0] = (byte)((this.version << 4) + this.internet_header_length);
ret[1] = this.type_of_service;
System.Array.Copy(System.BitConverter.GetBytes(this.total_length), 0, ret, 2, 2);
System.Array.Copy(System.BitConverter.GetBytes(this.identification), 0, ret, 4, 2);
ret[6] = (byte)((this.flags << 5) + ((this.fragment_offset >> 8) & 0x1f));
ret[7] = (byte)(this.fragment_offset & 0xff);
ret[8] = this.time_to_live;
ret[9] = this.protocol;
if (this.b_comput_header_checksum)
{
this.header_checksum = 0;
}
System.Array.Copy(System.BitConverter.GetBytes(this.header_checksum), 0, ret, 10, 2);
System.Array.Copy(System.BitConverter.GetBytes(this.source_address), 0, ret, 12, 4);
System.Array.Copy(System.BitConverter.GetBytes(this.destination_address), 0, ret, 16, 4);
// adding options
if (option_size > 0)
{
System.Array.Copy(this.options_and_padding, 0, ret, 20, option_size);
}
if (this.b_comput_header_checksum)
{
// comput checksum
this.header_checksum = Cchecksum.checksum(ret, true);
System.Array.Copy(System.BitConverter.GetBytes(this.header_checksum), 0, ret, 10, 2);
}
// adding data
if (data_size > 0)
{
System.Array.Copy(this.data, 0, ret, 20 + option_size, data_size);
}
return(ret);
}
public override byte[] encode()
{
byte[] ret = new byte[20];
ret[0] = this.type;
ret[1] = this.code;
if (!this.b_comput_checksum)
{
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
}
else
{
// checksum to 0
ret[2] = 0;
ret[3] = 0;
}
System.Array.Copy(System.BitConverter.GetBytes(this.identifier), 0, ret, 4, 2);
System.Array.Copy(System.BitConverter.GetBytes(this.sequence_number), 0, ret, 6, 2);
System.Array.Copy(System.BitConverter.GetBytes(this.originate_timestamp), 0, ret, 8, 4);
System.Array.Copy(System.BitConverter.GetBytes(this.receive_timestamp), 0, ret, 12, 4);
System.Array.Copy(System.BitConverter.GetBytes(this.transmit_timestamp), 0, ret, 16, 4);
if (this.b_comput_checksum)
{
// comput checksum
this.checksum = Cchecksum.checksum(ret, true);
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
}
return(ret);
}
public override byte[] encode()
{
byte[] ret = new byte[8];
ret[0] = this.type;
ret[1] = this.code;
if (!this.b_comput_checksum)
{
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
}
else
{
// checksum to 0
ret[2] = 0;
ret[3] = 0;
}
System.Array.Copy(System.BitConverter.GetBytes(this.identifier), 0, ret, 4, 2);
System.Array.Copy(System.BitConverter.GetBytes(this.sequence_number), 0, ret, 6, 2);
if (this.b_comput_checksum)
{
// comput checksum
this.checksum = Cchecksum.checksum(ret, true);
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
}
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
return(ret);
}
public override byte[] encode()
{
int ih_and_original_dd_size = 0;
if (this.ih_and_original_dd != null)
{
ih_and_original_dd_size = this.ih_and_original_dd.Length;
}
byte[] ret = new byte[8 + ih_and_original_dd_size];
ret[0] = this.type;
ret[1] = this.code;
if (!this.b_comput_checksum)
{
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
}
else
{
// checksum to 0
ret[2] = 0;
ret[3] = 0;
}
ret[4] = this.pointer;
// unused
System.Array.Copy(System.BitConverter.GetBytes(this.unused), 1, ret, 5, 3);
if (ih_and_original_dd_size > 0)
{
System.Array.Copy(this.ih_and_original_dd, 0, ret, 8, ih_and_original_dd_size);
}
if (this.b_comput_checksum)
{
// comput checksum
this.checksum = Cchecksum.checksum(ret, true);
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
}
return(ret);
}
public override byte[] encode()
{
int data_size = 0;
if (this.data != null)
{
data_size = this.data.Length;
}
byte[] ret = new byte[8 + data_size];
ret[0] = this.type;
ret[1] = this.code;
if (!this.b_comput_checksum)
{
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
}
else
{
// checksum to 0
ret[2] = 0;
ret[3] = 0;
}
System.Array.Copy(System.BitConverter.GetBytes(this.identifier), 0, ret, 4, 2);
System.Array.Copy(System.BitConverter.GetBytes(this.sequence_number), 0, ret, 6, 2);
if (data_size > 0)
{
System.Array.Copy(this.data, 0, ret, 8, data_size);
}
if (this.b_comput_checksum)
{
// comput checksum
this.checksum = Cchecksum.checksum(ret, true);
System.Array.Copy(System.BitConverter.GetBytes(this.checksum), 0, ret, 2, 2);
}
return(ret);
}
