Moved common initialization code to a separate class method.

[stg.git] / projects / stargazer / plugins / capture / nfqueue / nfqueue.cpp

diff --git a/projects/stargazer/plugins/capture/nfqueue/nfqueue.cpp b/projects/stargazer/plugins/capture/nfqueue/nfqueue.cpp
index 245fc64925837f937f4e13664658fbc5027fe37f..68f7270caff0aafe4256c8fb63a9f76390052504 100644 (file)
--- a/projects/stargazer/plugins/capture/nfqueue/nfqueue.cpp
+++ b/projects/stargazer/plugins/capture/nfqueue/nfqueue.cpp
@@ -32,8 +32,12 @@ extern "C" {
 
 }
 
 
 }
 

+#include <cerrno>
+#include <csignal>
+

 #include <arpa/inet.h> // ntohl
 #include <arpa/inet.h> // ntohl

-#include <signal.h>
+
+#include <unistd.h> // read

 
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 //-----------------------------------------------------------------------------


@@ -43,7 +47,7 @@ namespace
 
 PLUGIN_CREATOR<NFQ_CAP> ncc;
 
 
 PLUGIN_CREATOR<NFQ_CAP> ncc;
 

-int callback(struct nfq_q_handle * /*queueHandle*/, struct nfgenmsg * /*msg*/,
+int Callback(struct nfq_q_handle * queueHandle, struct nfgenmsg * /*msg*/,

              struct nfq_data * nfqData, void *data)
 {
 int id = 0;
              struct nfq_data * nfqData, void *data)
 {
 int id = 0;


@@ -56,18 +60,18 @@ id = ntohl(packetHeader->packet_id);
 
 unsigned char * payload = NULL;
 
 
 unsigned char * payload = NULL;
 

-if (nfq_get_payload(nfqData) < 0)
+if (nfq_get_payload(nfqData, &payload) < 0 || payload == NULL)

     return id;
 
 RAW_PACKET packet;
 
     return id;
 
 RAW_PACKET packet;
 

-memcpy(&packet.rawPacket, payload, sizeof(ip.rawPacket));
+memcpy(&packet.rawPacket, payload, sizeof(packet.rawPacket));

 
 NFQ_CAP * cap = static_cast<NFQ_CAP *>(data);
 
 cap->Process(packet);
 
 
 NFQ_CAP * cap = static_cast<NFQ_CAP *>(data);
 
 cap->Process(packet);
 

-return nfq_set_verdict(qh, id, NF_ACCEPT, 0, NULL);
+return nfq_set_verdict(queueHandle, id, NF_ACCEPT, 0, NULL);

 }
 
 }
 }
 
 }


@@ -93,6 +97,9 @@ NFQ_CAP::NFQ_CAP()
       thread(),
       nonstop(false),
       isRunning(false),
       thread(),
       nonstop(false),
       isRunning(false),

+      queueNumber(0),
+      nfqHandle(NULL),
+      queueHandle(NULL),

       traffCnt(NULL),
       logger(GetPluginLogger(GetStgLogger(), "cap_nfqueue"))
 {
       traffCnt(NULL),
       logger(GetPluginLogger(GetStgLogger(), "cap_nfqueue"))
 {


@@ -100,6 +107,14 @@ NFQ_CAP::NFQ_CAP()
 //-----------------------------------------------------------------------------
 int NFQ_CAP::ParseSettings()
 {
 //-----------------------------------------------------------------------------
 int NFQ_CAP::ParseSettings()
 {

+for (size_t i = 0; i < settings.moduleParams.size(); i++)
+    if (settings.moduleParams[i].param == "queueNumber")
+        if (str2x(settings.moduleParams[i].param, queueNumber) < 0)
+            {
+            errorStr = "Queue number should be a number. Got: '" + settings.moduleParams[i].param + "'";
+            logger(errorStr);
+            return -1;
+            }

 return 0;
 }
 //-----------------------------------------------------------------------------
 return 0;
 }
 //-----------------------------------------------------------------------------


@@ -211,7 +226,7 @@ pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
 NFQ_CAP * dc = static_cast<NFQ_CAP *>(d);
 dc->isRunning = true;
 
 NFQ_CAP * dc = static_cast<NFQ_CAP *>(d);
 dc->isRunning = true;
 

-int fd = nfq_fd(nfqHandle);
+int fd = nfq_fd(dc->nfqHandle);

 char buf[4096];
 
 while (dc->nonstop)
 char buf[4096];
 
 while (dc->nonstop)


@@ -219,16 +234,21 @@ while (dc->nonstop)
         if (!WaitPackets(fd))
             continue;
 
         if (!WaitPackets(fd))
             continue;
 

-        int rv = read(fd, buf, sizeof(buf), 0);
+        int rv = read(fd, buf, sizeof(buf));

         if (rv < 0)
             {
         if (rv < 0)
             {

-            errorStr = "Read error: " + strerror(errno);
-            logger(errorStr);
+            dc->errorStr = std::string("Read error: ") + strerror(errno);
+            dc->logger(dc->errorStr);

             break;
             }
             break;
             }

-        nfq_handle_packet(nfqHandle, buf, rv);
+        nfq_handle_packet(dc->nfqHandle, buf, rv);

     }
 
 dc->isRunning = false;
 return NULL;
 }
     }
 
 dc->isRunning = false;
 return NULL;
 }

+//-----------------------------------------------------------------------------
+void NFQ_CAP::Process(const RAW_PACKET & packet)
+{
+traffCnt->Process(packet);
+}