Работа над чтением pcap файлов

src/main/java/ru/serega6531/packmate/ApplicationConfiguration.java

@@ -1,20 +1,33 @@
 package ru.serega6531.packmate;
 
+import org.pcap4j.core.PcapNativeException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
+import org.springframework.scheduling.annotation.EnableScheduling;
 import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
 import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
 import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.security.crypto.password.PasswordEncoder;
+import org.springframework.web.socket.config.annotation.EnableWebSocket;
 import org.springframework.web.socket.config.annotation.WebSocketConfigurer;
 import org.springframework.web.socket.config.annotation.WebSocketHandlerRegistry;
+import ru.serega6531.packmate.model.enums.CaptureMode;
+import ru.serega6531.packmate.pcap.FilePcapWorker;
+import ru.serega6531.packmate.pcap.LivePcapWorker;
+import ru.serega6531.packmate.pcap.PcapWorker;
+import ru.serega6531.packmate.service.ServicesService;
+import ru.serega6531.packmate.service.StreamService;
+
+import java.net.UnknownHostException;
 
 @Configuration
 @EnableWebSecurity
+@EnableScheduling
+@EnableWebSocket
 public class ApplicationConfiguration extends WebSecurityConfigurerAdapter implements WebSocketConfigurer {
 
     @Value("${account-login}")
@@ -30,6 +43,21 @@ public class ApplicationConfiguration extends WebSecurityConfigurerAdapter imple
         this.webSocketHandler = webSocketHandler;
     }
 
+    @Bean(destroyMethod = "stop")
+    @Autowired
+    public PcapWorker pcapWorker(ServicesService servicesService,
+                                 StreamService streamService,
+                                 @Value("${local-ip}") String localIpString,
+                                 @Value("${interface-name}") String interfaceName,
+                                 @Value("${pcap-file}") String filename,
+                                 @Value("${capture-mode}") CaptureMode captureMode) throws PcapNativeException, UnknownHostException {
+        if(captureMode == CaptureMode.LIVE) {
+            return new LivePcapWorker(servicesService, streamService, localIpString, interfaceName);
+        } else {
+            return new FilePcapWorker(servicesService, streamService, localIpString, filename);
+        }
+    }
+
     @Autowired
     public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
         auth.inMemoryAuthentication()

src/main/java/ru/serega6531/packmate/PackmateApplication.java

@@ -6,12 +6,9 @@ import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.context.event.EventListener;
-import org.springframework.scheduling.annotation.EnableScheduling;
+import ru.serega6531.packmate.pcap.PcapWorker;
-import org.springframework.web.socket.config.annotation.EnableWebSocket;
 
 @SpringBootApplication
-@EnableScheduling
-@EnableWebSocket
 public class PackmateApplication {
 
     @Value("${enable-capture}")

src/main/java/ru/serega6531/packmate/TimeoutStreamsSaver.java

@@ -6,6 +6,7 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.scheduling.annotation.Scheduled;
 import org.springframework.stereotype.Component;
 import ru.serega6531.packmate.model.enums.Protocol;
+import ru.serega6531.packmate.pcap.PcapWorker;
 
 import java.util.concurrent.TimeUnit;
 

src/main/java/ru/serega6531/packmate/model/enums/CaptureMode.java

@@ -0,0 +1,7 @@
+package ru.serega6531.packmate.model.enums;
+
+public enum CaptureMode {
+
+    LIVE, FILE
+
+}

src/main/java/ru/serega6531/packmate/pcap/AbstractPcapWorker.java

@@ -1,25 +1,22 @@
-package ru.serega6531.packmate;
+package ru.serega6531.packmate.pcap;
 
 import com.google.common.collect.*;
 import lombok.SneakyThrows;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.concurrent.BasicThreadFactory;
 import org.apache.commons.lang3.tuple.ImmutablePair;
-import org.pcap4j.core.*;
+import org.pcap4j.core.PacketListener;
+import org.pcap4j.core.PcapHandle;
 import org.pcap4j.packet.IpV4Packet;
 import org.pcap4j.packet.Packet;
 import org.pcap4j.packet.TcpPacket;
 import org.pcap4j.packet.UdpPacket;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.stereotype.Component;
 import ru.serega6531.packmate.model.CtfService;
 import ru.serega6531.packmate.model.enums.Protocol;
 import ru.serega6531.packmate.model.pojo.UnfinishedStream;
 import ru.serega6531.packmate.service.ServicesService;
 import ru.serega6531.packmate.service.StreamService;
 
-import javax.annotation.PreDestroy;
 import java.net.Inet4Address;
 import java.net.InetAddress;
 import java.net.UnknownHostException;
@@ -29,16 +26,14 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.stream.Collectors;
 
-@Component
 @Slf4j
-public class PcapWorker implements PacketListener {
+public abstract class AbstractPcapWorker implements PcapWorker, PacketListener {
 
     private final ServicesService servicesService;
     private final StreamService streamService;
 
-    private final PcapNetworkInterface device;
+    protected PcapHandle pcap = null;
-    private PcapHandle pcap = null;
+    protected final ExecutorService listenerExecutorService;
-    private final ExecutorService listenerExecutorService;
 
     private final InetAddress localIp;
 
@@ -51,11 +46,9 @@ public class PcapWorker implements PacketListener {
     private final SetMultimap<UnfinishedStream, ImmutablePair<Inet4Address, Integer>> fins = HashMultimap.create();
     private final SetMultimap<UnfinishedStream, ImmutablePair<Inet4Address, Integer>> acks = HashMultimap.create();
 
-    @Autowired
+    public AbstractPcapWorker(ServicesService servicesService,
-    public PcapWorker(ServicesService servicesService,
                               StreamService streamService,
-                      @Value("${interface-name}") String interfaceName,
+                              String localIpString) throws UnknownHostException {
-                      @Value("${local-ip}") String localIpString) throws PcapNativeException, UnknownHostException {
         this.servicesService = servicesService;
         this.streamService = streamService;
 
@@ -67,37 +60,6 @@ public class PcapWorker implements PacketListener {
         BasicThreadFactory factory = new BasicThreadFactory.Builder()
                 .namingPattern("pcap-worker-listener").build();
         listenerExecutorService = Executors.newSingleThreadExecutor(factory);
-        device = Pcaps.getDevByName(interfaceName);
-    }
-
-    void start() throws PcapNativeException {
-        log.info("Using interface " + device.getName());
-        pcap = device.openLive(65536, PcapNetworkInterface.PromiscuousMode.PROMISCUOUS, 100);
-
-        BasicThreadFactory factory = new BasicThreadFactory.Builder()
-                .namingPattern("pcap-worker-loop").build();
-        ExecutorService loopExecutorService = Executors.newSingleThreadExecutor(factory);
-        try {
-            log.info("Intercept started");
-            pcap.loop(-1, this, loopExecutorService);
-        } catch (InterruptedException ignored) {
-            Thread.currentThread().interrupt();
-            // выходим
-        } catch (Exception e) {
-            log.error("Error while capturing packet", e);
-            stop();
-        }
-    }
-
-    @PreDestroy
-    @SneakyThrows
-    private void stop() {
-        if (pcap != null && pcap.isOpen()) {
-            pcap.breakLoop();
-            pcap.close();
-        }
-
-        log.info("Intercept stopped");
     }
 
     public void gotPacket(Packet rawPacket) {
@@ -241,7 +203,7 @@ public class PcapWorker implements PacketListener {
     }
 
     @SneakyThrows
-    int closeTimeoutStreams(Protocol protocol, long timeoutMillis) {
+    public int closeTimeoutStreams(Protocol protocol, long timeoutMillis) {
         return listenerExecutorService.submit(() -> {
             int streamsClosed = 0;
 

src/main/java/ru/serega6531/packmate/pcap/FilePcapWorker.java

@@ -0,0 +1,59 @@
+package ru.serega6531.packmate.pcap;
+
+import lombok.SneakyThrows;
+import lombok.extern.slf4j.Slf4j;
+import org.pcap4j.core.PcapNativeException;
+import org.pcap4j.core.Pcaps;
+import org.pcap4j.packet.Packet;
+import ru.serega6531.packmate.service.ServicesService;
+import ru.serega6531.packmate.service.StreamService;
+
+import java.io.EOFException;
+import java.io.File;
+import java.net.UnknownHostException;
+
+@Slf4j
+public class FilePcapWorker extends AbstractPcapWorker {
+
+    private final File file;
+
+    public FilePcapWorker(ServicesService servicesService,
+                          StreamService streamService,
+                          String localIpString,
+                          String filename) throws UnknownHostException {
+        super(servicesService, streamService, localIpString);
+
+        file = new File(filename);
+        if(!file.exists()) {
+            throw new IllegalArgumentException("File " + file.getAbsolutePath() + " does not exist");
+        }
+    }
+
+    @SneakyThrows
+    @Override
+    public void start() {
+        pcap = Pcaps.openOffline(file.getAbsolutePath());
+
+        while (pcap.isOpen()) {
+            try {
+                final Packet packet = pcap.getNextPacketEx();
+                gotPacket(packet);
+            } catch (PcapNativeException e) {
+                log.error("Pcap read", e);
+                Thread.sleep(100);
+            } catch (EOFException e) {
+                stop();
+                break;
+            }
+        }
+    }
+
+    @SneakyThrows
+    public void stop() {
+        if (pcap != null && pcap.isOpen()) {
+            pcap.close();
+        }
+
+        log.info("Intercept stopped");
+    }
+}

src/main/java/ru/serega6531/packmate/pcap/LivePcapWorker.java

@@ -0,0 +1,62 @@
+package ru.serega6531.packmate.pcap;
+
+import lombok.SneakyThrows;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.concurrent.BasicThreadFactory;
+import org.pcap4j.core.PcapNativeException;
+import org.pcap4j.core.PcapNetworkInterface;
+import org.pcap4j.core.Pcaps;
+import ru.serega6531.packmate.service.ServicesService;
+import ru.serega6531.packmate.service.StreamService;
+
+import java.net.UnknownHostException;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+@Slf4j
+public class LivePcapWorker extends AbstractPcapWorker {
+
+    private final PcapNetworkInterface device;
+
+    public LivePcapWorker(ServicesService servicesService,
+                          StreamService streamService,
+                          String localIpString,
+                          String interfaceName) throws PcapNativeException, UnknownHostException {
+        super(servicesService, streamService, localIpString);
+        device = Pcaps.getDevByName(interfaceName);
+
+        if(device == null) {
+            throw new IllegalArgumentException("Device " + interfaceName + " does not exist");
+        }
+    }
+
+    public void start() throws PcapNativeException {
+        log.info("Using interface " + device.getName());
+        pcap = device.openLive(65536, PcapNetworkInterface.PromiscuousMode.PROMISCUOUS, 100);
+
+        BasicThreadFactory factory = new BasicThreadFactory.Builder()
+                .namingPattern("pcap-worker-loop").build();
+        ExecutorService loopExecutorService = Executors.newSingleThreadExecutor(factory);
+        try {
+            log.info("Intercept started");
+            pcap.loop(-1, this, loopExecutorService);
+        } catch (InterruptedException ignored) {
+            Thread.currentThread().interrupt();
+            // выходим
+        } catch (Exception e) {
+            log.error("Error while capturing packet", e);
+            stop();
+        }
+    }
+
+    @SneakyThrows
+    public void stop() {
+        if (pcap != null && pcap.isOpen()) {
+            pcap.breakLoop();
+            pcap.close();
+        }
+
+        log.info("Intercept stopped");
+    }
+
+}

src/main/java/ru/serega6531/packmate/pcap/PcapWorker.java

@@ -0,0 +1,12 @@
+package ru.serega6531.packmate.pcap;
+
+import org.pcap4j.core.PcapNativeException;
+import ru.serega6531.packmate.model.enums.Protocol;
+
+public interface PcapWorker {
+
+    void start() throws PcapNativeException;
+    void stop();
+    int closeTimeoutStreams(Protocol protocol, long timeoutMillis);
+
+}

src/main/resources/application.yml

@@ -15,6 +15,7 @@ spring:
 
 
 enable-capture: true
+capture-mode: LIVE  # LIVE, FILE
 interface-name: enp0s31f6
 local-ip: "192.168.0.125"
 account-login: BinaryBears