public IpV6OptionQuickStart(IpV4OptionQuickStartFunction function, byte rate, byte ttl, uint nonce)
: base(IpV6OptionType.QuickStart)
{
IpOptionQuickStartCommon.AssertValidParameters(function, rate, ttl, nonce);
Function = function;
Rate = rate;
Ttl = ttl;
Nonce = nonce;
}
internal override IpV6Option CreateInstance(DataSegment data)
{
if (data.Length != OptionDataLength)
{
return(null);
}
IpV4OptionQuickStartFunction function;
byte rate;
byte ttl;
uint nonce;
IpOptionQuickStartCommon.ReadData(data, out function, out rate, out ttl, out nonce);
return(new IpV6OptionQuickStart(function, rate, ttl, nonce));
}
/// <summary>
/// Tries to read the option from a buffer starting from the option value (after the type and length).
/// </summary>
/// <param name="buffer">The buffer to read the option from.</param>
/// <param name="offset">The offset to the first byte to read the buffer. Will be incremented by the number of bytes read.</param>
/// <param name="valueLength">The number of bytes the option value should take according to the length field that was already read.</param>
/// <returns>On success - the complex option read. On failure - null.</returns>
Option IOptionComplexFactory.CreateInstance(byte[] buffer, ref int offset, byte valueLength)
{
if (valueLength != OptionValueLength)
{
return(null);
}
IpV4OptionQuickStartFunction function;
byte rate;
byte ttl;
uint nonce;
IpOptionQuickStartCommon.ReadData(new DataSegment(buffer, offset, valueLength), out function, out rate, out ttl, out nonce);
offset += OptionValueLength;
return(new IpV4OptionQuickStart(function, rate, ttl, nonce));
}
/// <summary>
/// Parses an option from the given data.
/// </summary>
/// <param name="data">The data to parse.</param>
/// <returns>The option if parsing was successful, null otherwise.</returns>
public IpV6Option CreateInstance(DataSegment data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
if (data.Length != OptionDataLength)
{
return(null);
}
IpV4OptionQuickStartFunction function;
byte rate;
byte ttl;
uint nonce;
IpOptionQuickStartCommon.ReadData(data, out function, out rate, out ttl, out nonce);
return(new IpV6OptionQuickStart(function, rate, ttl, nonce));
}
internal override void WriteData(byte[] buffer, ref int offset)
{
IpOptionQuickStartCommon.WriteData(buffer, ref offset, Function, Rate, Ttl, Nonce);
}
