57 lines
2.0 KiB
C#
57 lines
2.0 KiB
C#
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/*
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This file is part of PacketDotNet
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PacketDotNet is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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PacketDotNet is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with PacketDotNet. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Copyright 2009 Chris Morgan <chmorgan@gmail.com>
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*/
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using System;
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namespace PacketDotNet
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{
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/// <summary>
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/// Ethernet protocol field encoding information.
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/// </summary>
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public class EthernetFields
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{
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/// <summary> Width of the ethernet type code in bytes.</summary>
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public readonly static int TypeLength = 2;
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/// <summary> Position of the destination MAC address within the ethernet header.</summary>
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public readonly static int DestinationMacPosition = 0;
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/// <summary> Position of the source MAC address within the ethernet header.</summary>
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public readonly static int SourceMacPosition;
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/// <summary> Position of the ethernet type field within the ethernet header.</summary>
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public readonly static int TypePosition;
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/// <summary> Total length of an ethernet header in bytes.</summary>
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public readonly static int HeaderLength; // == 14
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static EthernetFields()
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{
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SourceMacPosition = EthernetFields.MacAddressLength;
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TypePosition = EthernetFields.MacAddressLength * 2;
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HeaderLength = EthernetFields.TypePosition + EthernetFields.TypeLength;
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}
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/// <summary>
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/// size of an ethernet mac address in bytes
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/// </summary>
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public readonly static int MacAddressLength = 6;
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}
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}
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