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>
28 #include "stg/raw_ip_packet.h"
29 #include "stg/traffcounter.h"
30 #include "stg/plugin_creator.h"
31 #include "stg/common.h"
40 //-----------------------------------------------------------------------------
41 //-----------------------------------------------------------------------------
42 //-----------------------------------------------------------------------------
45 PLUGIN_CREATOR<IPQ_CAP> icc;
48 extern "C" PLUGIN * GetPlugin();
49 //-----------------------------------------------------------------------------
50 //-----------------------------------------------------------------------------
51 //-----------------------------------------------------------------------------
54 return icc.GetPlugin();
56 //-----------------------------------------------------------------------------
57 //-----------------------------------------------------------------------------
58 //-----------------------------------------------------------------------------
59 std::string IPQ_CAP::GetVersion() const
61 return "cap_ipq v.1.2";
63 //-----------------------------------------------------------------------------
70 logger(GetPluginLogger(GetStgLogger(), "cap_ipq"))
72 memset(buf, 0, BUFSIZE);
74 //-----------------------------------------------------------------------------
81 errorStr = "Cannot open socket!";
82 printfd(__FILE__, "Cannot open socket\n");
86 if (pthread_create(&thread, NULL, Run, this) == 0)
90 errorStr = "Cannot create thread.";
91 printfd(__FILE__, "Cannot create thread\n");
94 //-----------------------------------------------------------------------------
100 //5 seconds to thread stops itself
101 for (int i = 0; i < 25; i++)
105 struct timespec ts = {0, 200000000};
106 nanosleep(&ts, NULL);
108 //after 5 seconds waiting thread still running. now killing it
111 if (pthread_kill(thread, SIGINT))
113 errorStr = "Cannot kill thread.";
116 for (int i = 0; i < 25 && isRunning; ++i)
118 struct timespec ts = {0, 200000000};
119 nanosleep(&ts, NULL);
123 printfd(__FILE__, "Thread not stopped\n");
127 pthread_join(thread, NULL);
133 //-----------------------------------------------------------------------------
134 void * IPQ_CAP::Run(void * d)
137 sigfillset(&signalSet);
138 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
140 RAW_PACKET raw_packet;
142 IPQ_CAP * dc = static_cast<IPQ_CAP *>(d);
143 dc->isRunning = true;
144 memset(&raw_packet, 0, sizeof(raw_packet));
145 raw_packet.dataLen = -1;
148 int status = dc->IPQCapRead(&raw_packet, 68);
154 dc->traffCnt->Process(raw_packet);
156 dc->isRunning = false;
159 //-----------------------------------------------------------------------------
160 int IPQ_CAP::IPQCapOpen()
162 ipq_h = ipq_create_handle(0, PF_INET);
165 ipq_destroy_handle(ipq_h);
166 logger("Cannot create IPQ handle. Error: '%s', '%s'", ipq_errstr(), strerror(errno));
167 errorStr = "Cannot create ipq handle!";
170 int status = ipq_set_mode(ipq_h, IPQ_COPY_PACKET, PAYLOAD_LEN);
173 ipq_destroy_handle(ipq_h);
174 logger("Cannot set IPQ_COPY_PACKET mode.");
175 errorStr = "Cannot set IPQ_COPY_PACKET mode!";
180 //-----------------------------------------------------------------------------
181 int IPQ_CAP::IPQCapClose()
183 ipq_destroy_handle(ipq_h);
186 //-----------------------------------------------------------------------------
187 int IPQ_CAP::IPQCapRead(void * buffer, int blen)
189 memset(buf, 0, BUFSIZE);
190 int status = ipq_read(ipq_h, buf, BUFSIZE, 1);
197 if (ipq_message_type(buf) != IPQM_PACKET)
199 static ipq_packet_msg_t * m = ipq_get_packet(buf);
200 memcpy(buffer, m->payload, blen);
201 ipq_set_verdict(ipq_h, m->packet_id, NF_ACCEPT, 0, NULL);
204 //-----------------------------------------------------------------------------