// 应用层
private void parseApp(byte[] payloadData, ushort srcPort, ushort dstPort)
{
if (payloadData.Length == 0)
{
return;
}
AppSrcPort = srcPort;
AppDstPort = dstPort;
if (isAnalysProtocol(80))
{
protocol = "HTTP";
flowProtocol += "&" + "http";
HttpPacket http = new HttpPacket(payloadData);
HTTP(http);
}
else if (isAnalysProtocol(21))
{
protocol = "FTP";
flowProtocol += "&" + "ftp";
FtpPacket ftp = new FtpPacket(payloadData);
FTP(ftp);
}
}
/// <summary>
/// 添加应用层协议
/// </summary>
/// <param name="payloadData">载荷数据</param>
/// <param name="SourcePort">源端口</param>
/// <param name="DestinationPort">目的端口</param>
private void AppNode(byte[] payloadData, ushort SourcePort, ushort DestinationPort)
{
if (payloadData.Length == 0)
{
return;
}
AppsrcPort = SourcePort;
AppdstPort = DestinationPort;
//HTTP 80
if (isAnalysProtocol(80))
{
HttpPacket http = new HttpPacket(payloadData);
Http(http);
}
//smtp 25
else if (isAnalysProtocol(25))
{
SmtpPacket smtp = new SmtpPacket(payloadData);
SMTP(smtp);
}
//pop3 110
else if (isAnalysProtocol(110))
{
Pop3Packet pop3 = new Pop3Packet(payloadData);
POP3(pop3);
}
//DNS 53
else if (isAnalysProtocol(53))
{
DnsPacket dns = new DnsPacket(payloadData);
DNS(dns);
}
//ftp 21
else if (isAnalysProtocol(21))
{
FtpPacket ftp = new FtpPacket(payloadData);
FTP(ftp);
}
//DHCP 67 68
else if (isAnalysProtocol(67) || isAnalysProtocol(68))
{
DhcpPackets dp = new DhcpPackets(payloadData);
DHCP(dp);
}
else if (isAnalysProtocol(520))
{
RipPacket rp = new RipPacket(payloadData);
RIP(rp);
}
//ssdp 1900
else if (isAnalysProtocol(1900))
{
SSDPPacket ssdp = new SSDPPacket(payloadData);
SSDP(ssdp);
}
}
private void FTP(FtpPacket ftp)
{
if (ftp == null)
return;
List<CommandTypeHead> ftplist = ftp.CreatHeadList();
if (ftplist.Count == 0)
return;
setInfo(ftplist);
}
private void appNext(byte[] payloadData, ushort srcPort, ushort dstPort)
{
if (payloadData.Length == 0)
{
return;
}
AppSrcPort = srcPort;
AppDstPort = dstPort;
if (isAnalysProtocol(80))
{
HttpPacket http = new HttpPacket(payloadData);
HTTP(http);
}
else if (isAnalysProtocol(21))
{
FtpPacket ftp = new FtpPacket(payloadData);
FTP(ftp);
}
}
private void FTP(FtpPacket ftpPacket)
{
if (ftpPacket == null)
{
return;
}
if (FTPNode == null)
{
FTPNode = CreatNode("FTP", 7);
}
FTPNode.Nodes.Clear();
List <CommandTypeHead> ftpList = ftpPacket.CreatHeadList();
if (ftpList.Count == 0)
{
return;
}
//显示数据
setAppTreeNode(ftpList, FTPNode);
//加入选定模式
}
private void FTP(FtpPacket ftp)
{
if (ftp == null)
{
return;
}
if (FTPNode == null)
{
FTPNode = new TreeNode();
}
FTPNode.Nodes.Clear();
FTPNode.Text = string.Format("File Transfer Protocol (FTP)");
List <CommandTypeHead> ftplist = ftp.CreatHeadList();
if (ftplist.Count == 0)
{
return;
}
setAppTreeNode(ftplist, HTTPNode);
}
public void ParseProtocol(Packet packet, StatisticsRecord statisticsRecord)
{
FtpPacket ftpPacket = (FtpPacket)packet;
statisticsRecord.ApplicationLayer = ftpPacket.GetType().Name.Replace("Packet", "");
}
