70 lines
2.4 KiB
C#
70 lines
2.4 KiB
C#
/*
|
|
This file is part of PacketDotNet
|
|
|
|
PacketDotNet is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
PacketDotNet is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with PacketDotNet. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
/*
|
|
* Copyright 2010 Chris Morgan <chmorgan@gmail.com>
|
|
*/
|
|
using System;
|
|
|
|
namespace PacketDotNet
|
|
{
|
|
/// <summary>
|
|
/// Point to Point Protocol
|
|
/// See http://tools.ietf.org/html/rfc2516
|
|
/// </summary>
|
|
public class PPPoEFields
|
|
{
|
|
/// <summary> Size in bytes of the version/type field </summary>
|
|
public readonly static int VersionTypeLength = 1;
|
|
|
|
/// <summary> Size in bytes of the code field </summary>
|
|
public readonly static int CodeLength = 1;
|
|
|
|
/// <summary> Size in bytes of the SessionId field </summary>
|
|
public readonly static int SessionIdLength = 2;
|
|
|
|
/// <summary> Size in bytes of the Length field </summary>
|
|
public readonly static int LengthLength = 2;
|
|
|
|
/// <summary> Offset from the start of the header to the version/type field </summary>
|
|
public readonly static int VersionTypePosition = 0;
|
|
|
|
/// <summary> Offset from the start of the header to the Code field </summary>
|
|
public readonly static int CodePosition;
|
|
|
|
/// <summary> Offset from the start of the header to the SessionId field </summary>
|
|
public readonly static int SessionIdPosition;
|
|
|
|
/// <summary> Offset from the start of the header to the Length field </summary>
|
|
public readonly static int LengthPosition;
|
|
|
|
/// <summary>
|
|
/// Length of the overall PPPoe header
|
|
/// </summary>
|
|
public readonly static int HeaderLength;
|
|
|
|
static PPPoEFields()
|
|
{
|
|
CodePosition = VersionTypePosition + VersionTypeLength;
|
|
SessionIdPosition = CodePosition + CodeLength;
|
|
LengthPosition = SessionIdPosition + SessionIdLength;
|
|
|
|
HeaderLength = LengthPosition + LengthLength;
|
|
}
|
|
}
|
|
}
|
|
|