/// <summary>
/// Resolve ARP cache.
/// </summary>
/// <param name="ipAddress">IP address.</param>
/// <returns>MAC address.</returns>
internal static MACAddress Resolve(IPv4.Address ipAddress)
{
ensureCacheExists();
if (cache.ContainsKey(ipAddress.Hash) == false)
{
return(null);
}
return(cache[ipAddress.Hash]);
}
/// <summary>
/// Update ARP cache.
/// </summary>
/// <param name="ipAddress">IP address.</param>
/// <param name="macAddress">MAC address.</param>
/// <exception cref="ArgumentOutOfRangeException">Thrown on fatal error (contact support).</exception>
/// <exception cref="sysIO.IOException">Thrown on IO error.</exception>
/// <exception cref="ArgumentException">Thrown on fatal error (contact support).</exception>
internal static void Update(IPv4.Address ipAddress, MACAddress macAddress)
{
ensureCacheExists();
uint ip_hash = ipAddress.Hash;
if (ip_hash == 0)
{
return;
}
if (cache.ContainsKey(ip_hash) == false)
{
cache.Add(ip_hash, macAddress);
}
else
{
cache[ip_hash] = macAddress;
}
}
/// <summary>
/// Update ARP cache.
/// </summary>
/// <param name="ipAddress">IP address.</param>
/// <param name="macAddress">MAC address.</param>
/// <exception cref="ArgumentOutOfRangeException">Thrown on fatal error (contact support).</exception>
/// <exception cref="sysIO.IOException">Thrown on IO error.</exception>
/// <exception cref="ArgumentException">Thrown on fatal error (contact support).</exception>
internal static void Update(IPv4.Address ipAddress, MACAddress macAddress)
{
ensureCacheExists();
if (ipAddress == null)
{
global::System.Console.Write("");
}
UInt32 ip_hash = ipAddress.Hash;
if (ip_hash == 0)
{
return;
}
if (cache.ContainsKey(ip_hash) == false)
{
cache.Add(ip_hash, macAddress);
}
else
{
cache[ip_hash] = macAddress;
}
}
/// <summary>
/// Check if ARP cache contains the given IP.
/// </summary>
/// <param name="ipAddress">IP address to check.</param>
/// <returns>bool value.</returns>
internal static bool Contains(IPv4.Address ipAddress)
{
ensureCacheExists();
return(cache.ContainsKey(ipAddress.Hash));
}
