74 lines
2.6 KiB
C#
74 lines
2.6 KiB
C#
/*
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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 2010 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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namespace Ieee80211
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{
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/// <summary>
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/// As defined by Airpcap.h
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///
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/// NOTE: PresentPosition may not be the only position present
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/// as this the field can be extended if the high bit is set
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/// </summary>
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public class RadioFields
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{
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/// <summary>Length of the version field</summary>
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public readonly static int VersionLength = 1;
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/// <summary>Length of the pad field</summary>
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public readonly static int PadLength = 1;
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/// <summary>Length of the length field</summary>
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public readonly static int LengthLength = 2;
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/// <summary>Length of the first present field (others may follow)</summary>
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public readonly static int PresentLength = 4;
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/// <summary>Position of the version field</summary>
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public readonly static int VersionPosition = 0;
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/// <summary>Position of the padding field</summary>
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public readonly static int PadPosition;
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/// <summary>Position of the length field</summary>
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public readonly static int LengthPosition;
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/// <summary>Position of the first present field</summary>
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public readonly static int PresentPosition;
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/// <summary>Default header length, assuming one present field entry</summary>
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public readonly static int DefaultHeaderLength;
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static RadioFields()
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{
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PadPosition = VersionPosition + VersionLength;
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LengthPosition = PadPosition + PadLength;
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PresentPosition = LengthPosition + LengthLength;
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// default to the normal header size until the header length can be read
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DefaultHeaderLength = PresentPosition + PresentLength;
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}
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}
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}
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};
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