/// <summary>
/// True iff the options values is equal.
/// </summary>
protected override bool EqualValues(IpV4OptionTimestamp other)
{
return TimedRoute.SequenceEqual(((IpV4OptionTimestampAndAddress)other).TimedRoute);
}
/// <summary>
/// Compares the values of the options.
/// </summary>
protected override bool EqualValues(IpV4OptionTimestamp other)
{
return Timestamps.SequenceEqual(((IpV4OptionTimestampOnly)other).Timestamps);
}
public static IEnumerable <string> GetWiresharkSubfieldStrings(this IpV4Option option)
{
switch (option.OptionType)
{
case IpV4OptionType.EndOfOptionList:
case IpV4OptionType.NoOperation:
case IpV4OptionType.StreamIdentifier:
case IpV4OptionType.RouterAlert:
case IpV4OptionType.QuickStart:
break;
case IpV4OptionType.LooseSourceRouting:
case IpV4OptionType.StrictSourceRouting:
case IpV4OptionType.RecordRoute:
IpV4OptionRoute routeOption = (IpV4OptionRoute)option;
yield return("Pointer: " + (routeOption.PointedAddressIndex * 4 + 4));
for (int i = 0; i != routeOption.Route.Count; ++i)
{
yield return(routeOption.Route[i] + (routeOption.PointedAddressIndex == i ? " <- (current)" : string.Empty));
}
break;
case IpV4OptionType.InternetTimestamp:
IpV4OptionTimestamp timestampOption = (IpV4OptionTimestamp)option;
if (timestampOption.CountTimestamps == 0)
{
break;
}
yield return("Pointer: " + (timestampOption.PointedIndex * 4 + 5));
yield return("Overflow: " + timestampOption.Overflow);
switch (timestampOption.TimestampType)
{
case IpV4OptionTimestampType.TimestampOnly:
yield return("Flag: Time stamps only");
IpV4OptionTimestampOnly timestampOnlyOption = (IpV4OptionTimestampOnly)option;
foreach (IpV4TimeOfDay timeOfDay in timestampOnlyOption.Timestamps)
{
yield return("Time stamp = " + timeOfDay.MillisecondsSinceMidnightUniversalTime);
}
break;
case IpV4OptionTimestampType.AddressAndTimestamp:
yield return("Flag: Time stamp and address");
IpV4OptionTimestampAndAddress timestampAndAddressOption = (IpV4OptionTimestampAndAddress)option;
foreach (IpV4OptionTimedAddress timedAddress in timestampAndAddressOption.TimedRoute)
{
yield return("Address = " + timedAddress.Address + ", " +
"time stamp = " + timedAddress.TimeOfDay.MillisecondsSinceMidnightUniversalTime);
}
break;
case IpV4OptionTimestampType.AddressPrespecified:
yield return("Flag: Time stamps for prespecified addresses");
IpV4OptionTimestampAndAddress timestampPrespecifiedOption = (IpV4OptionTimestampAndAddress)option;
foreach (IpV4OptionTimedAddress timedAddress in timestampPrespecifiedOption.TimedRoute)
{
yield return(string.Format("Address = {0}, time stamp = {1}",
timedAddress.Address,
timedAddress.TimeOfDay.MillisecondsSinceMidnightUniversalTime));
}
break;
default:
throw new InvalidOperationException("Illegal timestamp type " + timestampOption.TimestampType);
}
break;
// ReSharper disable RedundantCaseLabel
case IpV4OptionType.BasicSecurity:
// ReSharper restore RedundantCaseLabel
default:
if (typeof(IpV4OptionType).GetEnumValues <IpV4OptionType>().Contains(option.OptionType))
{
throw new InvalidOperationException("Invalid option type " + option.OptionType);
}
break;
}
}