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 //-----------------------------------------------------------------------------
43 PLUGIN_CREATOR<IPQ_CAP> icc;
44 //-----------------------------------------------------------------------------
45 //-----------------------------------------------------------------------------
46 //-----------------------------------------------------------------------------
49 return icc.GetPlugin();
51 //-----------------------------------------------------------------------------
52 //-----------------------------------------------------------------------------
53 //-----------------------------------------------------------------------------
54 const std::string IPQ_CAP::GetVersion() const
56 return "ipq_cap v.1.2";
58 //-----------------------------------------------------------------------------
68 logger(GetPluginLogger(GetStgLogger(), "cap_ipq"))
70 memset(buf, 0, BUFSIZE);
72 //-----------------------------------------------------------------------------
79 errorStr = "Cannot open socket!";
80 printfd(__FILE__, "Cannot open socket\n");
84 if (pthread_create(&thread, NULL, Run, this) == 0)
88 errorStr = "Cannot create thread.";
89 printfd(__FILE__, "Cannot create thread\n");
92 //-----------------------------------------------------------------------------
98 //5 seconds to thread stops itself
99 for (int i = 0; i < 25; i++)
103 struct timespec ts = {0, 200000000};
104 nanosleep(&ts, NULL);
106 //after 5 seconds waiting thread still running. now killing it
109 if (pthread_kill(thread, SIGINT))
111 errorStr = "Cannot kill thread.";
114 for (int i = 0; i < 25 && isRunning; ++i)
116 struct timespec ts = {0, 200000000};
117 nanosleep(&ts, NULL);
121 printfd(__FILE__, "Thread not stopped\n");
125 pthread_join(thread, NULL);
131 //-----------------------------------------------------------------------------
132 void * IPQ_CAP::Run(void * d)
135 sigfillset(&signalSet);
136 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
138 RAW_PACKET raw_packet;
140 IPQ_CAP * dc = static_cast<IPQ_CAP *>(d);
141 dc->isRunning = true;
142 memset(&raw_packet, 0, sizeof(raw_packet));
143 raw_packet.dataLen = -1;
146 int status = dc->IPQCapRead(&raw_packet, 68);
152 dc->traffCnt->Process(raw_packet);
154 dc->isRunning = false;
157 //-----------------------------------------------------------------------------
158 int IPQ_CAP::IPQCapOpen()
160 ipq_h = ipq_create_handle(0, PF_INET);
163 ipq_destroy_handle(ipq_h);
164 logger("Cannot create IPQ handle. Error: '%s', '%s'", ipq_errstr(), strerror(errno));
165 errorStr = "Cannot create ipq handle!";
168 int status = ipq_set_mode(ipq_h, IPQ_COPY_PACKET, PAYLOAD_LEN);
171 ipq_destroy_handle(ipq_h);
172 logger("Cannot set IPQ_COPY_PACKET mode.");
173 errorStr = "Cannot set IPQ_COPY_PACKET mode!";
178 //-----------------------------------------------------------------------------
179 int IPQ_CAP::IPQCapClose()
181 ipq_destroy_handle(ipq_h);
184 //-----------------------------------------------------------------------------
185 int IPQ_CAP::IPQCapRead(void * buffer, int blen)
187 memset(buf, 0, BUFSIZE);
188 int status = ipq_read(ipq_h, buf, BUFSIZE, 1);
195 if (ipq_message_type(buf) != IPQM_PACKET)
197 static ipq_packet_msg_t * m = ipq_get_packet(buf);
198 memcpy(buffer, m->payload, blen);
199 ipq_set_verdict(ipq_h, m->packet_id, NF_ACCEPT, 0, NULL);
202 //-----------------------------------------------------------------------------