58 lines
2.3 KiB
C#
58 lines
2.3 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 2009 Chris Morgan <chmorgan@gmail.com>
|
||
|
|
*/
|
||
|
|
namespace PacketDotNet
|
||
|
|
{
|
||
|
|
/// <summary>
|
||
|
|
/// ICMP protocol field encoding information.
|
||
|
|
/// See http://en.wikipedia.org/wiki/ICMPv6
|
||
|
|
/// </summary>
|
||
|
|
public class ICMPv4Fields
|
||
|
|
{
|
||
|
|
/// <summary> Length of the ICMP message type code in bytes.</summary>
|
||
|
|
public readonly static int TypeCodeLength = 2;
|
||
|
|
/// <summary> Length of the ICMP header checksum in bytes.</summary>
|
||
|
|
public readonly static int ChecksumLength = 2;
|
||
|
|
/// <summary> Length of the ICMP ID field in bytes.</summary>
|
||
|
|
public readonly static int IDLength = 2;
|
||
|
|
/// <summary> Length of the ICMP Sequence field in bytes </summary>
|
||
|
|
public readonly static int SequenceLength = 2;
|
||
|
|
|
||
|
|
/// <summary> Position of the ICMP message type/code.</summary>
|
||
|
|
public readonly static int TypeCodePosition = 0;
|
||
|
|
/// <summary> Position of the ICMP header checksum.</summary>
|
||
|
|
public readonly static int ChecksumPosition;
|
||
|
|
/// <summary> Position of the ICMP ID field </summary>
|
||
|
|
public readonly static int IDPosition;
|
||
|
|
/// <summary> Position of the Sequence field </summary>
|
||
|
|
public readonly static int SequencePosition;
|
||
|
|
/// <summary> Length in bytes of an ICMP header.</summary>
|
||
|
|
public readonly static int HeaderLength;
|
||
|
|
|
||
|
|
static ICMPv4Fields()
|
||
|
|
{
|
||
|
|
TypeCodePosition = 0;
|
||
|
|
ChecksumPosition = TypeCodePosition + TypeCodeLength;
|
||
|
|
IDPosition = ChecksumPosition + ChecksumLength;
|
||
|
|
SequencePosition = IDPosition + IDLength;
|
||
|
|
HeaderLength = SequencePosition + SequenceLength;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|