#include <arpa/inet.h>
#include <netinet/in.h>
#include <sys/types.h>
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <stdlib.h>
#include <unistd.h>
#include <linux/if_ether.h>
#include <linux/if_packet.h>
-#include <signal.h>
-
#include <sys/ioctl.h>
#include <net/if.h>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <cerrno>
+#include <csignal>
+
#include "stg/common.h"
#include "stg/raw_ip_packet.h"
#include "stg/traffcounter.h"
#include "stg/plugin_creator.h"
+
#include "ether_cap.h"
//#define CAP_DEBUG 1
}
//-----------------------------------------------------------------------------
ETHER_CAP::ETHER_CAP()
- : nonstop(false),
+ : errorStr(),
+ thread(),
+ nonstop(false),
isRunning(false),
capSock(-1),
- traffCnt(NULL)
+ traffCnt(NULL),
+ logger(GetPluginLogger(GetStgLogger(), "cap_ether"))
{
}
//-----------------------------------------------------------------------------
if (pthread_create(&thread, NULL, Run, this) == 0)
{
- 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 ETHER_CAP::Stop()
//5 seconds to thread stops itself
for (int i = 0; i < 25 && isRunning; i++)
{
- usleep(200000);
+ 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)
- usleep(200000);
+ {
+ struct timespec ts = {0, 200000000};
+ nanosleep(&ts, NULL);
+ }
if (isRunning)
{
errorStr = "ETHER_CAP not stopped.";
+ logger("Cannot stop thread.");
printfd(__FILE__, "Cannot stop thread\n");
return -1;
}
//-----------------------------------------------------------------------------
void * ETHER_CAP::Run(void * d)
{
-ETHER_CAP * dc = (ETHER_CAP *)d;
+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
+
+ETHER_CAP * dc = static_cast<ETHER_CAP *>(d);
dc->isRunning = true;
struct ETH_IP
int ETHER_CAP::EthCapOpen()
{
capSock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
+if (capSock < 0)
+ logger("Cannot create socket: %s", strerror(errno));
return capSock;
}
//-----------------------------------------------------------------------------
res = recvfrom(capSock, ((char*)buffer) + 2, blen, 0, (struct sockaddr *)&addr, (socklen_t*)&addrLen);
-if (-1 == res)
+if (res < 0)
{
- if (errno != EINTR)
- {
- printfd(__FILE__, "Error on recvfrom: '%s'\n", strerror(errno));
- }
+ logger("recvfrom error: %s", strerror(errno));
return ENODATA;
}
return 0;
}
-//-----------------------------------------------------------------------------
-bool ETHER_CAP::WaitPackets(int sd) const
-{
-fd_set rfds;
-FD_ZERO(&rfds);
-FD_SET(sd, &rfds);
-
-struct timeval tv;
-tv.tv_sec = 0;
-tv.tv_usec = 500000;
-
-int res = select(sd + 1, &rfds, NULL, NULL, &tv);
-if (res == -1) // Error
- {
- if (errno != EINTR)
- {
- printfd(__FILE__, "Error on select: '%s'\n", strerror(errno));
- }
- return false;
- }
-
-if (res == 0) // Timeout
- {
- return false;
- }
-
-return true;
-}