Initial adding of netfilter_queue capturer.

diff --git a/projects/stargazer/plugins/capture/nfqueue/Makefile b/projects/stargazer/plugins/capture/nfqueue/Makefile
new file mode 100644 (file)
index 0000000..a9f4a80
--- /dev/null
+++ b/projects/stargazer/plugins/capture/nfqueue/Makefile
@@ -0,0 +1,13 @@
+include ../../../../../Makefile.conf
+
+PROG = mod_cap_nfqueue.so
+
+SRCS = ./nfqueue.cpp
+
+LIBS += $(NFQ_LIBS) $(LIB_THREAD)
+
+STGLIBS = common \
+          logger
+
+include ../../Makefile.in
+

diff --git a/projects/stargazer/plugins/capture/nfqueue/nfqueue.cpp b/projects/stargazer/plugins/capture/nfqueue/nfqueue.cpp
new file mode 100644 (file)
index 0000000..a007c89
--- /dev/null
+++ b/projects/stargazer/plugins/capture/nfqueue/nfqueue.cpp
@@ -0,0 +1,143 @@
+/*
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+* Author : Maxim Mamontov <faust@stargazer.dp.ua>
+*/
+
+#include "nfqueue.h"
+
+#include "stg/traffcounter.h"
+#include "stg/plugin_creator.h"
+#include "stg/common.h"
+#include "stg/raw_ip_packet.h"
+
+#include <signal.h>
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+namespace
+{
+PLUGIN_CREATOR<NFQ_CAP> ncc;
+}
+
+extern "C" PLUGIN * GetPlugin();
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+PLUGIN * GetPlugin()
+{
+return ncc.GetPlugin();
+}
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+std::string NFQ_CAP::GetVersion() const
+{
+return "cap_nfqueue v.1.0";
+}
+//-----------------------------------------------------------------------------
+NFQ_CAP::NFQ_CAP()
+    : errorStr(),
+      thread(),
+      nonstop(false),
+      isRunning(false),
+      traffCnt(NULL),
+      logger(GetPluginLogger(GetStgLogger(), "cap_nfqueue"))
+{
+}
+//-----------------------------------------------------------------------------
+int NFQ_CAP::ParseSettings()
+{
+return 0;
+}
+//-----------------------------------------------------------------------------
+int NFQ_CAP::Start()
+{
+if (isRunning)
+    return 0;
+
+nonstop = true;
+
+if (pthread_create(&thread, NULL, Run, this))
+    {
+    errorStr = "Cannot create thread.";
+    logger("Cannot create thread.");
+    printfd(__FILE__, "Cannot create thread\n");
+    return -1;
+    }
+
+return 0;
+}
+//-----------------------------------------------------------------------------
+int NFQ_CAP::Stop()
+{
+if (!isRunning)
+    return 0;
+
+nonstop = false;
+
+//5 seconds to thread stops itself
+for (int i = 0; i < 25 && isRunning; i++)
+    {
+    struct timespec ts = {0, 200000000};
+    nanosleep(&ts, NULL);
+    }
+//after 5 seconds waiting thread still running. now killing it
+if (isRunning)
+    {
+    if (pthread_kill(thread, SIGUSR1))
+        {
+        errorStr = "Cannot kill thread.";
+        logger("Cannot send signal to thread.");
+        return -1;
+        }
+    for (int i = 0; i < 25 && isRunning; ++i)
+        {
+        struct timespec ts = {0, 200000000};
+        nanosleep(&ts, NULL);
+        }
+    if (isRunning)
+        {
+        errorStr = "NFQ_CAP not stopped.";
+        logger("Cannot stop thread.");
+        printfd(__FILE__, "Cannot stop thread\n");
+        return -1;
+        }
+    }
+
+pthread_join(thread, NULL);
+
+return 0;
+}
+//-----------------------------------------------------------------------------
+void * NFQ_CAP::Run(void * d)
+{
+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
+
+NFQ_CAP * dc = static_cast<NFQ_CAP *>(d);
+dc->isRunning = true;
+
+while (dc->nonstop)
+    {
+    }
+
+dc->isRunning = false;
+return NULL;
+}

diff --git a/projects/stargazer/plugins/capture/nfqueue/nfqueue.h b/projects/stargazer/plugins/capture/nfqueue/nfqueue.h
new file mode 100644 (file)
index 0000000..02452bb
--- /dev/null
+++ b/projects/stargazer/plugins/capture/nfqueue/nfqueue.h
@@ -0,0 +1,80 @@
+/*
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this program; if not, write to the Free Software
+ *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/*
+* Author : Maxim Mamontov <faust@stargazer.dp.ua>
+*/
+
+#ifndef NFQ_CAP_H
+#define NFQ_CAP_H
+
+#include "stg/plugin.h"
+#include "stg/module_settings.h"
+#include "stg/logger.h"
+
+#include <string>
+#include <vector>
+
+#include <pthread.h>
+
+class USERS;
+class TARIFFS;
+class ADMINS;
+class TRAFFCOUNTER;
+class SETTINGS;
+
+class TRAFFCOUNTER;
+
+class NFQ_CAP : public PLUGIN {
+public:
+    NFQ_CAP();
+    virtual ~NFQ_CAP() {}
+
+    void                SetTraffcounter(TRAFFCOUNTER * tc) { traffCnt = tc; }
+
+    int                 Start();
+    int                 Stop();
+    int                 Reload() { return 0; }
+    bool                IsRunning() { return isRunning; }
+
+    void                SetSettings(const MODULE_SETTINGS & s) { settings = s; }
+    int                 ParseSettings();
+
+    const std::string & GetStrError() const { return errorStr; }
+    std::string         GetVersion() const;
+    uint16_t            GetStartPosition() const { return 40; }
+    uint16_t            GetStopPosition() const { return 40; }
+
+private:
+    NFQ_CAP(const NFQ_CAP & rvalue);
+    NFQ_CAP & operator=(const NFQ_CAP & rvalue);
+
+    static void *       Run(void *);
+
+    mutable std::string errorStr;
+
+    pthread_t           thread;
+    bool                nonstop;
+    bool                isRunning;
+    MODULE_SETTINGS     settings;
+
+    TRAFFCOUNTER *      traffCnt;
+
+    PLUGIN_LOGGER       logger;
+};
+//-----------------------------------------------------------------------------
+
+#endif