$Author: faust $
*/
+#include "ether_cap.h"
+
+#include "stg/common.h"
+#include "stg/raw_ip_packet.h"
+#include "stg/traffcounter.h"
+
+#include <cerrno>
+#include <cstdio>
+#include <cstring>
+#include <cstdlib>
+#include <csignal>
+
#include <sys/types.h>
#include <sys/uio.h>
#include <sys/socket.h>
#include <sys/time.h>
#include <sys/ioctl.h>
-#include <sys/poll.h>
#include <net/bpf.h>
#include <net/if.h>
#include <fcntl.h>
#include <unistd.h>
-#include <cerrno>
-#include <cstdio>
-#include <cstring>
-#include <cstdlib>
-#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
-//-----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
-namespace
+extern "C" STG::Plugin* GetPlugin()
{
-PLUGIN_CREATOR<BPF_CAP> bcc;
+ static BPF_CAP plugin;
+ return &plugin;
}
-
-extern "C" PLUGIN * GetPlugin();
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
-PLUGIN * GetPlugin()
-{
-return bcc.GetPlugin();
-}
-//-----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
-//-----------------------------------------------------------------------------
-int BPF_CAP_SETTINGS::ParseSettings(const MODULE_SETTINGS & s)
+int BPF_CAP_SETTINGS::ParseSettings(const STG::ModuleSettings & s)
{
iface.erase(iface.begin(), iface.end());
//-----------------------------------------------------------------------------
std::string BPF_CAP::GetVersion() const
{
-return "bpf_cap v.1.0";
+return "cap_bpf v.1.0";
}
//-----------------------------------------------------------------------------
BPF_CAP::BPF_CAP()
- : capSettings(),
- errorStr(),
- bpfData(),
- polld(),
- thread(),
- nonstop(false),
- isRunning(false),
+ : isRunning(false),
capSock(-1),
- settings(),
traffCnt(NULL),
- logger(GetPluginLogger(GetStgLogger(), "cap_ether"))
+ logger(STG::PluginLogger::get("cap_bpf"))
{
}
//-----------------------------------------------------------------------------
return -1;
}
-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;
- }
+m_thread = std::jthread([this](auto token){ Run(std::move(token)); });
return 0;
}
BPFCapClose();
-nonstop = false;
+m_thread.request_stop();
//5 seconds to thread stops itself
int i;
//after 5 seconds waiting thread still running. now killing it
if (isRunning)
- {
- //TODO pthread_cancel()
- if (pthread_kill(thread, SIGINT))
- {
- errorStr = "Cannot kill thread.";
- logger("Cannot send signal to thread.");
- printfd(__FILE__, "Cannot kill thread\n");
- return -1;
- }
- }
+ m_thread.detach();
+else
+ m_thread.join();
return 0;
}
//-----------------------------------------------------------------------------
-void * BPF_CAP::Run(void * d)
+void BPF_CAP::Run(std::stop_token token)
{
sigset_t signalSet;
sigfillset(&signalSet);
pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
-BPF_CAP * dc = static_cast<BPF_CAP *>(d);
-dc->isRunning = true;
+isRunning = true;
uint8_t hdr[96]; //68 + 14 + 4(size) + 9(SYS_IFACE) + 1(align to 4) = 96
-RAW_PACKET * rpp = (RAW_PACKET *)&hdr[14];
+STG::RawPacket * rpp = (STG::RawPacket *)&hdr[14];
memset(hdr, 0, sizeof(hdr));
rpp->dataLen = -1;
char * iface;
-while (dc->nonstop)
+while (!token.stop_requested())
{
- if (dc->BPFCapRead((char*)&hdr, 68 + 14, &iface))
+ if (BPFCapRead((char*)&hdr, 68 + 14, &iface))
continue;
if (!(hdr[12] == 0x8 && hdr[13] == 0x0))
continue;
- dc->traffCnt->Process(*rpp);
+ traffCnt->process(*rpp);
}
-dc->isRunning = false;
-return NULL;
+isRunning = false;
}
//-----------------------------------------------------------------------------
int BPF_CAP::BPFCapOpen()
if (bd->fd < 0)
{
errorStr = "Can't capture packets. Open bpf device for " + bd->iface + " error.";
- logger("Cannot open device for interface '%s': %s", bd->iface, strerror(errno));
+ logger("Cannot open device for interface '%s': %s", bd->iface.c_str(), strerror(errno));
printfd(__FILE__, "Cannot open BPF device\n");
return -1;
}
if (ioctl(bd->fd, BIOCSBLEN, (caddr_t)&l) < 0)
{
errorStr = bd->iface + " BIOCSBLEN " + std::string(strerror(errno));
- logger("ioctl (BIOCSBLEN) error for interface '%s': %s", db->iface, strerror(errno));
+ logger("ioctl (BIOCSBLEN) error for interface '%s': %s", bd->iface.c_str(), strerror(errno));
printfd(__FILE__, "ioctl failed: '%s'\n", errorStr.c_str());
return -1;
}
if (ioctl(bd->fd, BIOCSETIF, (caddr_t)&ifr) < 0)
{
errorStr = bd->iface + " BIOCSETIF " + std::string(strerror(errno));
- logger("ioctl (BIOCSETIF) error for interface '%s': %s", db->iface, strerror(errno));
+ logger("ioctl (BIOCSETIF) error for interface '%s': %s", bd->iface.c_str(), strerror(errno));
printfd(__FILE__, "ioctl failed: '%s'\n", errorStr.c_str());
return -1;
}
if (ioctl(bd->fd, BIOCIMMEDIATE, &im) < 0)
{
errorStr = bd->iface + " BIOCIMMEDIATE " + std::string(strerror(errno));
- logger("ioctl (BIOCIMMEDIATE) error for interface '%s': %s", db->iface, strerror(errno));
+ logger("ioctl (BIOCIMMEDIATE) error for interface '%s': %s", bd->iface.c_str(), strerror(errno));
printfd(__FILE__, "ioctl failed: '%s'\n", errorStr.c_str());
return -1;
}
bd->r = read(bd->fd, bd->buffer, BUFF_LEN);
if (bd->r < 0)
{
- logger("read error: %s", strerror(errno));
+ logger("read error: %s", strerror(errno));
struct timespec ts = {0, 20000000};
nanosleep(&ts, NULL);
return -1;