//메인 스레드에서 동작하는 코루틴.
IEnumerator recvPacket()
{
Debug.Log("start recvPacket()");
WaitForSecondsRealtime recvRate = new WaitForSecondsRealtime(0.005f); //5ms 단위로 Queue 확인하여 메인스레드로 데이터를 가져옴.
Packet_Data recvData = null;
while (true)
{
//서로 다른 스레드가 Queue를 공유하고 있으므로, 동기화 제어.
lock (locking)
{
//데이터가 있다면 가져옴.
if (packet_Queue.Count > 0)
{
recvData = packet_Queue.Dequeue();
}
}
//가져온 데이터가 있다면 수신처리.
if (recvData != null)
{
//패킷이 도착함.
byte[] data = recvData.packet_data;
//do Something. 이부분에, 다른 메소드 등을 넣어서, 패킷 수신시 처리등을 하면 된다.
recvData = null;
}
yield return(recvRate); //지정된 시간만큼 대기.
}
}
public Form1(ArrayList list)
{
InitializeComponent();
packet = new ArrayList();
packet = list;
struct_packet = new Packet_Data();
jObject = new JObject();
addObject = new JObject();
rnd = new Random();
}
static void Main(string[] args)
{
System.Text.Encoding utf8 = System.Text.Encoding.UTF8;
string line = File.ReadAllText(Application.StartupPath + "/TESTTEXT.txt", Encoding.UTF8);
string str = "";
int r_index = 0;
int data_index = 0;
ArrayList list = new ArrayList();
String Data = "";
Packet_Data temp = new Packet_Data();
int numOfPacket = 0;
for (int i = 0; i < line.Length; i++)
{
if (!line[i].Equals('\r') && (!line[i].Equals('\n')) && (!line[i].Equals(' ')))
{
str += line[i];
r_index++;
}
else
{
if (!str.Equals(""))
{
temp.Original_sign += str + " ";
data_index++;
int value = Convert.ToInt32(str, 16);
if (0 < data_index && data_index <= 6)
{
temp.destination_mac += (str + " "); // 1
}
else if (6 < data_index && data_index <= 12)
{
temp.source_mac += (str + " "); // 2
}
else if (12 < data_index && data_index <= 14)
{
temp.type += (str + "");
}
else if (data_index == 15)
{
if (str[0] == '4')
{
temp.ip_v = "ip_4";
}
else
{
temp.ip_v = "ip_6";
}
if (value % 16 == 5)
{
temp.ip_header_Status = "normal";
}
else if (value % 16 < 5)
{
temp.ip_header_Status = "Error";
}
else
{
temp.ip_header_Status = "hasOption";
}
}
else if (data_index == 16)
{
} //무시 TOS
else if (16 < data_index && data_index <= 18)
{
temp.total_length += value;
}
else if (18 < data_index && data_index <= 20)
{
temp.identification += str;
}
else if (20 < data_index && data_index <= 21)
{
if (value / 16 >= 4)
{
temp.dont_frag = true;
}
else
{
temp.dont_frag = false;
}
if ((value / 16) % 4 >= 2)
{
temp.more_frag = true;
}
else
{
temp.more_frag = false;
}
if ((value / 16) % 2 == 1)
{
temp.offset += 256 * 16;
}
temp.offset += (value % 16) * 256;
}
else if (data_index == 22)
{
temp.offset += value;
}
else if (data_index == 23)
{
temp.TTL = value;
}
else if (data_index == 24)
{
if (value == 1)
{
temp.protocol = "ICMP";
}
else if (value == 6)
{
temp.protocol = "TCP";
}
else if (value == 8)
{
temp.protocol = "EGP";
}
else if (value == 17)
{
temp.protocol = "UDP";
}
else if (value == 89)
{
temp.protocol = "OSPF";
}
else if (value == 88)
{
temp.protocol = "IGRP";
}
else
{
temp.protocol = "UnknownProtocol";
}
}
else if (24 < data_index && data_index <= 26)
{
temp.header_check_sum += str;
}
else if (26 < data_index && data_index <= 30)
{
temp.source_ip += (value + ".");
}
else if (30 < data_index && data_index <= 34)
{
temp.destination_ip += (value + ".");
}
else if (34 < data_index && data_index <= 36)
{
if (data_index == 35)
{
temp.source_port = value * 256;
}
else
{
temp.source_port += value;
}
}
else if (36 < data_index && data_index <= 38)
{
if (data_index == 37)
{
temp.destination_port = value * 256;
}
else
{
temp.destination_port += value;
}
}
else if (38 < data_index && data_index <= 42)
{
temp.Sequence_number += str;
}
else if (42 < data_index && data_index <= 46)
{
temp.Ack_number += str;
}
else if (data_index == 47)
{
temp.headerLength = value / 16 * 4;
}
else if (data_index == 48)
{
int t_N = value;
int index = 0;
int binary = 128;
while (t_N > 0)
{
if (t_N / binary == 1)
{
if (index == 0)
{
temp.CWR = true;
}
else if (index == 1)
{
temp.ECN_Echo = true;
}
else if (index == 2)
{
temp.Urgent = true;
}
else if (index == 3)
{
temp.ACK = true;
}
else if (index == 4)
{
temp.Push = true;
}
else if (index == 5)
{
temp.Reset = true;
}
else if (index == 6)
{
temp.Syn = true;
}
else if (index == 7)
{
temp.Fin = true;
}
}
t_N %= binary;
binary /= 2;
index++;
}
temp.check_flags = Convert.ToString(value, 2);
}
else if (data_index == 49)
{
temp.windowSize += value * 256;
}
else if (data_index == 50)
{
temp.windowSize += value;
}
else if (50 < data_index && data_index <= 52)
{
temp.checksum += str;
}
else if (53 == data_index)
{
temp.urgent_pointer = 256 * value;
}
else if (54 == data_index)
{
temp.urgent_pointer = value;
}
else
{
if (temp.Push && temp.ACK)
{
Data += str;
}
else if (temp.Syn == true)
{
if (data_index == 55)
{
if (value == 2)
{
temp.MSS = true;
temp.MSS_kind = value + " : Maximum Segment Size";
}
else
{
temp.MSS = false;
}
}
else if (temp.MSS == true)
{
if (data_index == 56)
{
temp.MSS_Length = value;
}
else if (data_index == 57)
{
temp.MSS_Value = value * 256;
}
else if (data_index == 58)
{
temp.MSS_Value += value;
}
}
}
if (data_index == 60)
{
if (value == 3)
{
temp.Window_Kind = value + ": window scale";
}
}
else if (data_index == 61)
{
temp.Window_Length = value;
}
else if (data_index == 62)
{
temp.Window_ShiftCnt = value;
}
else if (data_index == 65)
{
temp.SACK_Kind = value + " : SACK permitted";
}
else if (data_index == 66)
{
temp.SACK_Length = value;
}
}
str = "";
}
if (line[i].Equals('\n'))
{
if (r_index != 0)
{
temp.Original_sign += "\n";
}
else
{
data_index = 0;
byte[] arr_byteStr = StringToByteArray(Data);
String resultHex2 = String.Empty;
resultHex2 += Encoding.Default.GetString(arr_byteStr);
Data = "";
temp.TextData = resultHex2;
if (temp.Syn)
{
if (temp.ACK)
{
temp.TextData = "SYN, ACK";
}
else
{
temp.TextData = "SYN";
}
}
else if (temp.ACK)
{
if (temp.Reset)
{
temp.TextData = "RST, ACK";
}
else if (!temp.Push)
{
temp.TextData = "ACK";
}
}
temp.NumOfPacket = numOfPacket;
numOfPacket++;
list.Add(temp);
temp = new Packet_Data();
}
r_index = 0;
}
}
}
Console.WriteLine();
foreach (Packet_Data a in list)
{
Console.WriteLine("source IP : " + a.source_ip + ",Destination IP : " + a.destination_ip + ", source Port : " + a.source_port + ", destination Port : " + a.destination_port + ", DATA : " + a.TextData);
if (a.Syn)
{
Console.WriteLine("TCP Options => " + "Kind : " + a.MSS_kind + " , Length : " + a.MSS_Length + " , MSS Value : " + a.MSS_Value + " , " + "Kind : " + a.Window_Kind + " , Length : " + a.Window_Length + " , Shift Count : " + a.Window_ShiftCnt + "Kind : " + a.SACK_Kind + " , Length : " + a.SACK_Length);
}
}
ConsoleApp2.Form1 mainForm = new ConsoleApp2.Form1(list);
mainForm.ShowDialog();
//mainForm.Show();
}
