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
22 * Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
27 $Date: 2009/12/13 13:45:13 $
31 #include <sys/socket.h>
32 #include <arpa/inet.h>
33 #include <netinet/in.h>
34 #include <sys/types.h>
36 #include <linux/if_ether.h>
37 #include <linux/if_packet.h>
38 #include <sys/ioctl.h>
47 #include "stg/common.h"
48 #include "stg/raw_ip_packet.h"
49 #include "stg/traffcounter.h"
50 #include "stg/plugin_creator.h"
52 #include "ether_cap.h"
56 //-----------------------------------------------------------------------------
57 //-----------------------------------------------------------------------------
58 //-----------------------------------------------------------------------------
59 PLUGIN_CREATOR<ETHER_CAP> ecc;
60 //-----------------------------------------------------------------------------
61 //-----------------------------------------------------------------------------
62 //-----------------------------------------------------------------------------
65 return ecc.GetPlugin();
67 //-----------------------------------------------------------------------------
68 //-----------------------------------------------------------------------------
69 //-----------------------------------------------------------------------------
70 const std::string ETHER_CAP::GetVersion() const
72 return "Ether_cap v.1.2";
74 //-----------------------------------------------------------------------------
75 ETHER_CAP::ETHER_CAP()
82 logger(GetPluginLogger(GetStgLogger(), "cap_ether"))
85 //-----------------------------------------------------------------------------
86 int ETHER_CAP::Start()
93 errorStr = "Cannot open socket!";
94 printfd(__FILE__, "Cannot open socket\n");
100 if (pthread_create(&thread, NULL, Run, this))
102 errorStr = "Cannot create thread.";
103 logger("Cannot create thread.");
104 printfd(__FILE__, "Cannot create thread\n");
110 //-----------------------------------------------------------------------------
111 int ETHER_CAP::Stop()
118 //5 seconds to thread stops itself
119 for (int i = 0; i < 25 && isRunning; i++)
121 struct timespec ts = {0, 200000000};
122 nanosleep(&ts, NULL);
124 //after 5 seconds waiting thread still running. now killing it
127 if (pthread_kill(thread, SIGUSR1))
129 errorStr = "Cannot kill thread.";
130 logger("Cannot send signal to thread.");
133 for (int i = 0; i < 25 && isRunning; ++i)
135 struct timespec ts = {0, 200000000};
136 nanosleep(&ts, NULL);
140 errorStr = "ETHER_CAP not stopped.";
141 logger("Cannot stop thread.");
142 printfd(__FILE__, "Cannot stop thread\n");
147 pthread_join(thread, NULL);
154 //-----------------------------------------------------------------------------
155 void * ETHER_CAP::Run(void * d)
158 sigfillset(&signalSet);
159 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
161 ETHER_CAP * dc = static_cast<ETHER_CAP *>(d);
162 dc->isRunning = true;
174 char ethip[sizeof(ETH_IP)];
176 memset(ðip, 0, sizeof(ETH_IP));
178 ethIP = (ETH_IP *)ðip;
179 ethIP->rp.dataLen = -1;
185 if (dc->EthCapRead(ðip, 68 + 14, &iface))
190 if (ethIP->ethHdr[7] != 0x8)
193 dc->traffCnt->Process(ethIP->rp);
196 dc->isRunning = false;
199 //-----------------------------------------------------------------------------
200 int ETHER_CAP::EthCapOpen()
202 capSock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL));
204 logger("Cannot create socket: %s", strerror(errno));
207 //-----------------------------------------------------------------------------
208 int ETHER_CAP::EthCapClose()
213 //-----------------------------------------------------------------------------
214 int ETHER_CAP::EthCapRead(void * buffer, int blen, char **)
216 struct sockaddr_ll addr;
219 if (!WaitPackets(capSock))
224 addrLen = sizeof(addr);
226 res = recvfrom(capSock, ((char*)buffer) + 2, blen, 0, (struct sockaddr *)&addr, (socklen_t*)&addrLen);
230 logger("recvfrom error: %s", strerror(errno));