2  *    This program is free software; you can redistribute it and/or modify
 
   3  *    it under the terms of the GNU General Public License as published by
 
   4  *    the Free Software Foundation; either version 2 of the License, or
 
   5  *    (at your option) any later version.
 
   7  *    This program is distributed in the hope that it will be useful,
 
   8  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 
   9  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
  10  *    GNU General Public License for more details.
 
  12  *    You should have received a copy of the GNU General Public License
 
  13  *    along with this program; if not, write to the Free Software
 
  14  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
  18 * Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
 
  21 #include <netinet/in.h>
 
  22 #include <linux/netfilter.h>
 
  27 #include "stg/raw_ip_packet.h"
 
  28 #include "stg/traffcounter.h"
 
  29 #include "stg/plugin_creator.h"
 
  30 #include "stg/common.h"
 
  39 //-----------------------------------------------------------------------------
 
  40 //-----------------------------------------------------------------------------
 
  41 //-----------------------------------------------------------------------------
 
  42 PLUGIN_CREATOR<IPQ_CAP> icc;
 
  43 //-----------------------------------------------------------------------------
 
  44 //-----------------------------------------------------------------------------
 
  45 //-----------------------------------------------------------------------------
 
  48 return icc.GetPlugin();
 
  50 //-----------------------------------------------------------------------------
 
  51 //-----------------------------------------------------------------------------
 
  52 //-----------------------------------------------------------------------------
 
  53 const std::string IPQ_CAP::GetVersion() const
 
  55 return "ipq_cap v.1.2";
 
  57 //-----------------------------------------------------------------------------
 
  67       logger(GetPluginLogger(GetStgLogger(), "cap_ipq"))
 
  69 memset(buf, 0, BUFSIZE);
 
  71 //-----------------------------------------------------------------------------
 
  78     errorStr = "Cannot open socket!";
 
  79     printfd(__FILE__, "Cannot open socket\n");
 
  83 if (pthread_create(&thread, NULL, Run, this) == 0)
 
  87 errorStr = "Cannot create thread.";
 
  88 printfd(__FILE__, "Cannot create thread\n");
 
  91 //-----------------------------------------------------------------------------
 
  97 //5 seconds to thread stops itself
 
  98 for (int i = 0; i < 25; i++)
 
 102     struct timespec ts = {0, 200000000};
 
 103     nanosleep(&ts, NULL);
 
 105 //after 5 seconds waiting thread still running. now killing it
 
 108     if (pthread_kill(thread, SIGINT))
 
 110         errorStr = "Cannot kill thread.";
 
 113     for (int i = 0; i < 25 && isRunning; ++i)
 
 115         struct timespec ts = {0, 200000000};
 
 116         nanosleep(&ts, NULL);
 
 120         printfd(__FILE__, "Thread not stopped\n");
 
 124         pthread_join(thread, NULL);
 
 130 //-----------------------------------------------------------------------------
 
 131 void * IPQ_CAP::Run(void * d)
 
 134 sigfillset(&signalSet);
 
 135 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
 
 137 RAW_PACKET raw_packet;
 
 139 IPQ_CAP * dc = static_cast<IPQ_CAP *>(d);
 
 140 dc->isRunning = true;
 
 141 memset(&raw_packet, 0, sizeof(raw_packet));
 
 142 raw_packet.dataLen = -1;
 
 145     int status = dc->IPQCapRead(&raw_packet, 68);
 
 151     dc->traffCnt->Process(raw_packet);
 
 153 dc->isRunning = false;
 
 156 //-----------------------------------------------------------------------------
 
 157 int IPQ_CAP::IPQCapOpen()
 
 159 ipq_h = ipq_create_handle(0, PF_INET);
 
 162     ipq_destroy_handle(ipq_h);
 
 163     logger("Cannot create IPQ handle.");
 
 164     errorStr = "Cannot create ipq handle!";
 
 167 int status = ipq_set_mode(ipq_h, IPQ_COPY_PACKET, PAYLOAD_LEN);
 
 170     ipq_destroy_handle(ipq_h);
 
 171     logger("Cannot set IPQ_COPY_PACKET mode.");
 
 172     errorStr = "Cannot set IPQ_COPY_PACKET mode!";
 
 177 //-----------------------------------------------------------------------------
 
 178 int IPQ_CAP::IPQCapClose()
 
 180 ipq_destroy_handle(ipq_h);
 
 183 //-----------------------------------------------------------------------------
 
 184 int IPQ_CAP::IPQCapRead(void * buffer, int blen)
 
 186 memset(buf, 0, BUFSIZE);
 
 187 int status = ipq_read(ipq_h, buf, BUFSIZE, 1);
 
 194 if (ipq_message_type(buf) != IPQM_PACKET)
 
 196 static ipq_packet_msg_t * m = ipq_get_packet(buf);
 
 197 memcpy(buffer, m->payload, blen);
 
 198 ipq_set_verdict(ipq_h, m->packet_id, NF_ACCEPT, 0, NULL);
 
 201 //-----------------------------------------------------------------------------