-#include <signal.h>
-#include <cerrno>
+/*
+ * 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 : Boris Mikhailenko <stg34@stargazer.dp.ua>
+*/
+
#include <netinet/in.h>
#include <linux/netfilter.h>
+#include <csignal>
+#include <cerrno>
+#include <cstring>
+
+#include "stg/raw_ip_packet.h"
+#include "stg/traffcounter.h"
+#include "stg/plugin_creator.h"
+#include "stg/common.h"
+
#include "ipq_cap.h"
-#include "raw_ip_packet.h"
extern "C"
- {
- #include "libipq.h"
- }
-
-class IPQ_CAP_CREATOR
{
-private:
- IPQ_CAP * ic;
-
-public:
- IPQ_CAP_CREATOR()
- : ic(new IPQ_CAP())
- {
- };
- ~IPQ_CAP_CREATOR()
- {
- delete ic;
- };
+#include "libipq.h"
+}
- IPQ_CAP * GetCapturer()
- {
- return ic;
- };
-};
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
-IPQ_CAP_CREATOR icc;
+namespace
+{
+PLUGIN_CREATOR<IPQ_CAP> icc;
+}
+
+extern "C" PLUGIN * GetPlugin();
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
-BASE_PLUGIN * GetPlugin()
+PLUGIN * GetPlugin()
{
-return icc.GetCapturer();
+return icc.GetPlugin();
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
-const string IPQ_CAP::GetVersion() const
+std::string IPQ_CAP::GetVersion() const
{
-return "ipq_cap v.1.2";
+return "cap_ipq v.1.2";
}
//-----------------------------------------------------------------------------
IPQ_CAP::IPQ_CAP()
: ipq_h(NULL),
+ errorStr(),
+ thread(),
nonstop(false),
isRunning(false),
capSock(-1),
- traffCnt(NULL)
+ traffCnt(NULL),
+ buf(),
+ logger(GetPluginLogger(GetStgLogger(), "cap_ipq"))
{
memset(buf, 0, BUFSIZE);
}
//-----------------------------------------------------------------------------
-void IPQ_CAP::SetTraffcounter(TRAFFCOUNTER * tc)
-{
-traffCnt = tc;
-}
-//-----------------------------------------------------------------------------
-const string & IPQ_CAP::GetStrError() const
-{
-return errorStr;
-}
-//-----------------------------------------------------------------------------
int IPQ_CAP::Start()
{
if (isRunning)
{
if (!isRunning)
break;
- usleep(200000);
+ struct timespec ts = {0, 200000000};
+ nanosleep(&ts, NULL);
}
//after 5 seconds waiting thread still running. now killing it
if (isRunning)
}
for (int i = 0; i < 25 && isRunning; ++i)
{
- usleep(200000);
+ struct timespec ts = {0, 200000000};
+ nanosleep(&ts, NULL);
}
if (isRunning)
{
return 0;
}
//-----------------------------------------------------------------------------
-bool IPQ_CAP::IsRunning()
-{
-return isRunning;
-}
-//-----------------------------------------------------------------------------
void * IPQ_CAP::Run(void * d)
{
+sigset_t signalSet;
+sigfillset(&signalSet);
+pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
+
RAW_PACKET raw_packet;
-int status;
-IPQ_CAP * dc = (IPQ_CAP *)d;
+IPQ_CAP * dc = static_cast<IPQ_CAP *>(d);
dc->isRunning = true;
memset(&raw_packet, 0, sizeof(raw_packet));
raw_packet.dataLen = -1;
while (dc->nonstop)
{
- status = dc->IPQCapRead(&raw_packet, 68);
+ int status = dc->IPQCapRead(&raw_packet, 68);
if (status == -1 ||
status == -2 ||
status == -3 ||
return NULL;
}
//-----------------------------------------------------------------------------
-uint16_t IPQ_CAP::GetStartPosition() const
-{
-return 0;
-}
-//-----------------------------------------------------------------------------
-uint16_t IPQ_CAP::GetStopPosition() const
-{
-return 0;
-}
-//-----------------------------------------------------------------------------
int IPQ_CAP::IPQCapOpen()
{
-int status;
-
ipq_h = ipq_create_handle(0, PF_INET);
if (ipq_h == NULL)
{
ipq_destroy_handle(ipq_h);
+ logger("Cannot create IPQ handle. Error: '%s', '%s'", ipq_errstr(), strerror(errno));
errorStr = "Cannot create ipq handle!";
return -1;
}
-status = ipq_set_mode(ipq_h, IPQ_COPY_PACKET, PAYLOAD_LEN);
+int status = ipq_set_mode(ipq_h, IPQ_COPY_PACKET, PAYLOAD_LEN);
if (status < 0)
{
ipq_destroy_handle(ipq_h);
+ logger("Cannot set IPQ_COPY_PACKET mode.");
errorStr = "Cannot set IPQ_COPY_PACKET mode!";
return -1;
}
//-----------------------------------------------------------------------------
int IPQ_CAP::IPQCapRead(void * buffer, int blen)
{
-int status;
-static ipq_packet_msg_t *m;
-
memset(buf, 0, BUFSIZE);
-status = ipq_read(ipq_h, buf, BUFSIZE, 1);
+int status = ipq_read(ipq_h, buf, BUFSIZE, 1);
if (status == 0)
return -4;
if (errno == EINTR)
return -1;
if (ipq_message_type(buf) != IPQM_PACKET)
return -2;
-m = ipq_get_packet(buf);
+static ipq_packet_msg_t * m = ipq_get_packet(buf);
memcpy(buffer, m->payload, blen);
ipq_set_verdict(ipq_h, m->packet_id, NF_ACCEPT, 0, NULL);
return 0;
git.stg.codes / stg.git / blobdiff