X-Git-Url: https://git.stg.codes/stg.git/blobdiff_plain/251f3f94c0813a2b6950e38a854ea980042152f4..1acd024a6ba46ab0d9f9c25c089f79a4cba93f25:/projects/stargazer/plugins/capture/divert_freebsd/divert_cap.cpp

diff --git a/projects/stargazer/plugins/capture/divert_freebsd/divert_cap.cpp b/projects/stargazer/plugins/capture/divert_freebsd/divert_cap.cpp
index a949433e..96476d4e 100644
--- a/projects/stargazer/plugins/capture/divert_freebsd/divert_cap.cpp
+++ b/projects/stargazer/plugins/capture/divert_freebsd/divert_cap.cpp
@@ -62,7 +62,12 @@ DIVERT_DATA cddiv;  //capture data
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
+namespace
+{
 PLUGIN_CREATOR<DIVERT_CAP> dcc;
+}
+
+extern "C" PLUGIN * GetPlugin();
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
@@ -73,7 +78,7 @@ return dcc.GetPlugin();
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
-const std::string DIVERT_CAP::GetVersion() const
+std::string DIVERT_CAP::GetVersion() const
 {
 return "Divert_cap v.1.0";
 }
@@ -81,11 +86,13 @@ return "Divert_cap v.1.0";
 DIVERT_CAP::DIVERT_CAP()
     : settings(),
       port(0),
+      disableForwarding(false),
       errorStr(),
       thread(),
       nonstop(false),
       isRunning(false),
-      traffCnt(NULL)
+      traffCnt(NULL),
+      logger(GetPluginLogger(GetStgLogger(), "cap_divert"))
 {
 }
 //-----------------------------------------------------------------------------
@@ -103,14 +110,15 @@ if (DivertCapOpen() < 0)
 
 nonstop = true;
 
-if (pthread_create(&thread, NULL, Run, this) == 0)
+if (pthread_create(&thread, NULL, Run, this))
     {
-    return 0;
+    errorStr = "Cannot create thread.";
+    logger("Cannot create thread.");
+    printfd(__FILE__, "Cannot create thread\n");
+    return -1;
     }
 
-errorStr = "Cannot create thread.";
-printfd(__FILE__, "Cannot create thread\n");
-return -1;
+return 0;
 }
 //-----------------------------------------------------------------------------
 int DIVERT_CAP::Stop()
@@ -139,6 +147,7 @@ if (isRunning)
     if (pthread_kill(thread, SIGINT))
         {
         errorStr = "Cannot kill thread.";
+	logger("Cannot send signal to thread.");
         printfd(__FILE__, "Cannot kill thread\n");
         return -1;
         }
@@ -196,6 +205,7 @@ cddiv.sock = socket(PF_INET, SOCK_RAW, IPPROTO_DIVERT);
 if (cddiv.sock < 0)
     {
     errorStr = "Create divert socket error.";
+    logger("Cannot create a socket: %s", strerror(errno));
     printfd(__FILE__, "Cannot create divert socket\n");
     return -1;
     }
@@ -213,6 +223,7 @@ ret = bind(cddiv.sock, (struct sockaddr *)&divAddr, sizeof(divAddr));
 if (ret < 0)
     {
     errorStr = "Bind divert socket error.";
+    logger("Cannot bind the scoket: %s", strerror(errno));
     printfd(__FILE__, "Cannot bind divert socket\n");
     return -1;
     }
@@ -250,7 +261,16 @@ if ((bytes = recvfrom (cddiv.sock, buf, BUFF_LEN,
     if (iface)
         *iface = cddiv.iface;
 
-    sendto(cddiv.sock, buf, bytes, 0, (struct sockaddr*)&divertaddr, divertaddrSize);
+    if (!disableForwarding)
+    	{
+        if (sendto(cddiv.sock, buf, bytes, 0, (struct sockaddr*)&divertaddr, divertaddrSize) < 0)
+	    logger("sendto error: %s", strerror(errno));
+	}
+    }
+else
+    {
+    if (bytes < 0)
+        logger("recvfrom error: %s", strerror(errno));
     }
 
 return 0;
@@ -272,11 +292,9 @@ pv.param = "Port";
 pvi = std::find(settings.moduleParams.begin(), settings.moduleParams.end(), pv);
 if (pvi == settings.moduleParams.end())
     {
-    port = 15701;
-    return 0;
+    p = 15701;
     }
-
-if (ParseIntInRange(pvi->value[0], 1, 65535, &p))
+else if (ParseIntInRange(pvi->value[0], 1, 65535, &p))
     {
     errorStr = "Cannot parse parameter \'Port\': " + errorStr;
     printfd(__FILE__, "Cannot parse parameter 'Port'\n");
@@ -285,6 +303,22 @@ if (ParseIntInRange(pvi->value[0], 1, 65535, &p))
 
 port = p;
 
+bool d = false;
+pv.param = "DisableForwarding";
+pvi = std::find(settings.moduleParams.begin(), settings.moduleParams.end(), pv);
+if (pvi == settings.moduleParams.end())
+    {
+    disableForwarding = false;
+    }
+else if (ParseYesNo(pvi->value[0], &d))
+    {
+    errorStr = "Cannot parse parameter \'DisableForwarding\': " + errorStr;
+    printfd(__FILE__, "Cannot parse parameter 'DisableForwarding'\n");
+    return -1;
+    }
+
+disableForwarding = d;
+
 return 0;
 }
 //-----------------------------------------------------------------------------