DisableForwarding parameter added to the divert plugin

[stg.git] / 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 5c7ec36432b7a81cf63185bb4143272df12f4b70..5cf5358fafe2f966a8dfb8218af5f9abe56898f7 100644 (file)
--- a/projects/stargazer/plugins/capture/divert_freebsd/divert_cap.cpp
+++ b/projects/stargazer/plugins/capture/divert_freebsd/divert_cap.cpp
@@ -22,26 +22,31 @@
 $Revision: 1.13 $
 $Date: 2010/09/10 06:43:03 $
 */
-#include <stdio.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
-#include <string.h>
 
 #include <sys/uio.h>
 #include <sys/time.h>
 #include <sys/ioctl.h>
 #include <sys/poll.h>
 
-#include <errno.h>
 #include <fcntl.h>
-#include <stdlib.h>
-#include <signal.h>
 #include <unistd.h>
 
-#include "common.h"
+#include <cstdio>
+#include <cstring>
+#include <cerrno>
+#include <cstdlib>
+#include <csignal>
+
+#include <algorithm>
+#include <vector>
+
+#include "stg/common.h"
+#include "stg/traffcounter.h"
+#include "stg/plugin_creator.h"
 #include "divert_cap.h"
-#include "traffcounter.h"
 
 #define BUFF_LEN (16384) /* max mtu -> lo=16436  TODO why?*/
 
@@ -49,42 +54,21 @@ $Date: 2010/09/10 06:43:03 $
 struct DIVERT_DATA {
 int sock;
 short int port;
-unsigned char buffer[BUFF_LEN];
 char iface[10];
 };
 //-----------------------------------------------------------------------------
 pollfd pollddiv;
 DIVERT_DATA cddiv;  //capture data
 //-----------------------------------------------------------------------------
-class DIVERT_CAP_CREATOR {
-private:
-    DIVERT_CAP * divc;
-
-public:
-    DIVERT_CAP_CREATOR()
-        : divc(new DIVERT_CAP())
-        {
-        }
-    ~DIVERT_CAP_CREATOR()
-        {
-        delete divc;
-        }
-
-    DIVERT_CAP * GetCapturer()
-    {
-    return divc;
-    }
-};
-//-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
-DIVERT_CAP_CREATOR dcc;
+PLUGIN_CREATOR<DIVERT_CAP> dcc;
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 PLUGIN * GetPlugin()
 {
-return dcc.GetCapturer();
+return dcc.GetPlugin();
 }
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
@@ -95,7 +79,11 @@ return "Divert_cap v.1.0";
 }
 //-----------------------------------------------------------------------------
 DIVERT_CAP::DIVERT_CAP()
-    : port(0),
+    : settings(),
+      port(0),
+      disableForwarding(false),
+      errorStr(),
+      thread(),
       nonstop(false),
       isRunning(false),
       traffCnt(NULL)
@@ -142,7 +130,8 @@ for (i = 0; i < 25; i++)
     if (!isRunning)
         break;
 
-    usleep(200000);
+    struct timespec ts = {0, 200000000};
+    nanosleep(&ts, NULL);
     }
 
 //after 5 seconds waiting thread still running. now killing it
@@ -161,7 +150,11 @@ return 0;
 //-----------------------------------------------------------------------------
 void * DIVERT_CAP::Run(void * d)
 {
-DIVERT_CAP * dc = (DIVERT_CAP *)d;
+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
+
+DIVERT_CAP * dc = static_cast<DIVERT_CAP *>(d);
 dc->isRunning = true;
 
 char buffer[64];
@@ -173,7 +166,7 @@ while (dc->nonstop)
     if (buffer[12] != 0x8)
         continue;
 
-    memcpy(rp.pckt, &buffer[14], pcktSize);
+    memcpy(rp.rawPacket.pckt, &buffer[14], pcktSize);
 
     dc->traffCnt->Process(rp);
     }
@@ -258,7 +251,8 @@ 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)
+        sendto(cddiv.sock, buf, bytes, 0, (struct sockaddr*)&divertaddr, divertaddrSize);
     }
 
 return 0;
@@ -274,17 +268,15 @@ int DIVERT_CAP::ParseSettings()
 {
 int p;
 PARAM_VALUE pv;
-vector<PARAM_VALUE>::const_iterator pvi;
+std::vector<PARAM_VALUE>::const_iterator pvi;
 
 pv.param = "Port";
-pvi = find(settings.moduleParams.begin(), settings.moduleParams.end(), pv);
+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");
@@ -293,21 +285,22 @@ if (ParseIntInRange(pvi->value[0], 1, 65535, &p))
 
 port = p;
 
-return 0;
-}
-//-----------------------------------------------------------------------------
-int DIVERT_CAP::ParseIntInRange(const std::string & str, int min, int max, int * val)
-{
-if (str2x(str.c_str(), *val))
+bool d = false;
+pv.param = "DisableForwarding";
+pvi = std::find(settings.moduleParams.begin(), settings.moduleParams.end(), pv);
+if (pvi == settings.moduleParams.end())
     {
-    errorStr = "Incorrect value \'" + str + "\'.";
-    return -1;
+    disableForwarding = false;
     }
-if (*val < min || *val > max)
+else if (ParseYesNo(pvi->value[0], &d))
     {
-    errorStr = "Value \'" + str + "\' out of range.";
+    errorStr = "Cannot parse parameter \'DisableForwarding\': " + errorStr;
+    printfd(__FILE__, "Cannot parse parameter 'DisableForwarding'\n");
     return -1;
     }
+
+disableForwarding = d;
+
 return 0;
 }
 //-----------------------------------------------------------------------------