$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"
#define BUFF_LEN (16384) /* max mtu -> lo=16436 TODO why?*/
//-----------------------------------------------------------------------------
-struct DIVERT_DATA
-{
+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;
+namespace
+{
+PLUGIN_CREATOR<DIVERT_CAP> dcc;
+}
+
+extern "C" PLUGIN * GetPlugin();
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
-BASE_PLUGIN * GetPlugin()
+PLUGIN * GetPlugin()
{
-return dcc.GetCapturer();
+return dcc.GetPlugin();
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
-const string DIVERT_CAP::GetVersion() const
+std::string DIVERT_CAP::GetVersion() const
{
return "Divert_cap v.1.0";
}
//-----------------------------------------------------------------------------
DIVERT_CAP::DIVERT_CAP()
+ : settings(),
+ port(0),
+ disableForwarding(false),
+ errorStr(),
+ thread(),
+ nonstop(false),
+ isRunning(false),
+ traffCnt(NULL),
+ logger(GetPluginLogger(GetStgLogger(), "cap_divert"))
{
-isRunning = false;
-nonstop = false;
-}
-//-----------------------------------------------------------------------------
-void DIVERT_CAP::SetTraffcounter(TRAFFCOUNTER * tc)
-{
-traffCnt = tc;
-}
-//-----------------------------------------------------------------------------
-const string & DIVERT_CAP::GetStrError() const
-{
-return errorStr;
}
//-----------------------------------------------------------------------------
int DIVERT_CAP::Start()
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()
if (!isRunning)
break;
- usleep(200000);
+ struct timespec ts = {0, 200000000};
+ nanosleep(&ts, NULL);
}
//after 5 seconds waiting thread still running. now killing it
if (pthread_kill(thread, SIGINT))
{
errorStr = "Cannot kill thread.";
+ logger("Cannot send signal to thread.");
printfd(__FILE__, "Cannot kill thread\n");
return -1;
}
return 0;
}
//-----------------------------------------------------------------------------
-bool DIVERT_CAP::IsRunning()
-{
-return isRunning;
-}
-//-----------------------------------------------------------------------------
void * DIVERT_CAP::Run(void * d)
{
-DIVERT_CAP * dc = (DIVERT_CAP *)d;
-dc->isRunning = true;
+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
-/*struct ETH_IP
-{
-uint16_t ethHdr[8];
-RAW_PACKET rp;
-char padding[4];
-char padding1[8];
-};
-
-ETH_IP * ethIP;
-
-char ethip[sizeof(ETH_IP)];
-
-//memset(ðIP, 0, sizeof(ethIP));
-memset(ðip, 0, sizeof(ETH_IP));
+DIVERT_CAP * dc = static_cast<DIVERT_CAP *>(d);
+dc->isRunning = true;
-ethIP = (ETH_IP *)ðip;
-ethIP->rp.dataLen = -1;
-*/
-//char * iface = NULL;
char buffer[64];
while (dc->nonstop)
{
RAW_PACKET rp;
dc->DivertCapRead(buffer, 64, NULL);
- //printf("%x %x %x %x \n", buffer[0], buffer[4], buffer[8], buffer[12]);
- //printf("%x %x %x %x \n", buffer[16], buffer[20], buffer[24], buffer[28]);
- //printf("%x %x %x %x \n", buffer[32], buffer[36], buffer[40], buffer[44]);
-
if (buffer[12] != 0x8)
continue;
- memcpy(rp.pckt, &buffer[14], pcktSize);
+ memcpy(rp.rawPacket.pckt, &buffer[14], pcktSize);
- //dc->traffCnt->Process(*((RAW_PACKET*)( &buffer[14] ))); // - too dirty!
dc->traffCnt->Process(rp);
}
return NULL;
}
//-----------------------------------------------------------------------------
-uint16_t DIVERT_CAP::GetStartPosition() const
-{
-return 10;
-}
-//-----------------------------------------------------------------------------
-uint16_t DIVERT_CAP::GetStopPosition() const
-{
-return 10;
-}
-//-----------------------------------------------------------------------------
-/*****************************************************************************/
-/*****************************************************************************/
-/*****************************************************************************/
-/*****************************************************************************/
-/*****************************************************************************/
-//-----------------------------------------------------------------------------
int DIVERT_CAP::DivertCapOpen()
{
memset(&pollddiv, 0, sizeof(pollddiv));
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;
}
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;
}
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;
{
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");
port = p;
-return 0;
-}
-//-----------------------------------------------------------------------------
-int DIVERT_CAP::ParseIntInRange(const 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;
}
//-----------------------------------------------------------------------------
-void DIVERT_CAP::SetSettings(const MODULE_SETTINGS & s)
-{
-settings = s;
-}
-//-----------------------------------------------------------------------------
-
git.stg.codes / stg.git / blobdiff