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>
19 * Author : Maxim Mamontov <faust@stargazer.dp.ua>
31 #include "stg/common.h"
32 #include "stg/locker.h"
33 #include "stg/users.h"
34 #include "stg/user_property.h"
35 #include "stg/plugin_creator.h"
36 #include "stg/logger.h"
38 #include "ur_functor.h"
39 #include "send_functor.h"
41 extern volatile time_t stgTime;
43 using RS::REMOTE_SCRIPT;
50 USER_IS(USER_PTR u) : user(u) {}
51 bool operator()(const T & notifier) { return notifier.GetUser() == user; }
56 PLUGIN_CREATOR<REMOTE_SCRIPT> rsc;
58 } // namespace anonymous
60 extern "C" PLUGIN * GetPlugin();
61 //-----------------------------------------------------------------------------
62 //-----------------------------------------------------------------------------
63 //-----------------------------------------------------------------------------
64 //-----------------------------------------------------------------------------
65 //-----------------------------------------------------------------------------
66 //-----------------------------------------------------------------------------
69 return rsc.GetPlugin();
71 //-----------------------------------------------------------------------------
72 //-----------------------------------------------------------------------------
73 //-----------------------------------------------------------------------------
74 RS::SETTINGS::SETTINGS()
84 //-----------------------------------------------------------------------------
85 int RS::SETTINGS::ParseSettings(const MODULE_SETTINGS & s)
89 std::vector<PARAM_VALUE>::const_iterator pvi;
91 ///////////////////////////
93 pvi = find(s.moduleParams.begin(), s.moduleParams.end(), pv);
94 if (pvi == s.moduleParams.end())
96 errorStr = "Parameter \'Port\' not found.";
97 printfd(__FILE__, "Parameter 'Port' not found\n");
100 if (ParseIntInRange(pvi->value[0], 2, 65535, &p))
102 errorStr = "Cannot parse parameter \'Port\': " + errorStr;
103 printfd(__FILE__, "Cannot parse parameter 'Port'\n");
106 port = static_cast<uint16_t>(p);
107 ///////////////////////////
108 pv.param = "SendPeriod";
109 pvi = find(s.moduleParams.begin(), s.moduleParams.end(), pv);
110 if (pvi == s.moduleParams.end())
112 errorStr = "Parameter \'SendPeriod\' not found.";
113 printfd(__FILE__, "Parameter 'SendPeriod' not found\n");
117 if (ParseIntInRange(pvi->value[0], 5, 600, &sendPeriod))
119 errorStr = "Cannot parse parameter \'SendPeriod\': " + errorStr;
120 printfd(__FILE__, "Cannot parse parameter 'SendPeriod'\n");
123 ///////////////////////////
124 pv.param = "UserParams";
125 pvi = find(s.moduleParams.begin(), s.moduleParams.end(), pv);
126 if (pvi == s.moduleParams.end())
128 errorStr = "Parameter \'UserParams\' not found.";
129 printfd(__FILE__, "Parameter 'UserParams' not found\n");
132 userParams = pvi->value;
133 ///////////////////////////
134 pv.param = "Password";
135 pvi = find(s.moduleParams.begin(), s.moduleParams.end(), pv);
136 if (pvi == s.moduleParams.end())
138 errorStr = "Parameter \'Password\' not found.";
139 printfd(__FILE__, "Parameter 'Password' not found\n");
142 password = pvi->value[0];
143 ///////////////////////////
144 pv.param = "SubnetFile";
145 pvi = find(s.moduleParams.begin(), s.moduleParams.end(), pv);
146 if (pvi == s.moduleParams.end())
148 errorStr = "Parameter \'SubnetFile\' not found.";
149 printfd(__FILE__, "Parameter 'SubnetFile' not found\n");
152 subnetFile = pvi->value[0];
154 NRMapParser nrMapParser;
156 if (!nrMapParser.ReadFile(subnetFile))
158 netRouters = nrMapParser.GetMap();
162 GetStgLogger()("mod_rscript: error opening subnets file '%s'", subnetFile.c_str());
167 //-----------------------------------------------------------------------------
168 //-----------------------------------------------------------------------------
169 //-----------------------------------------------------------------------------
170 REMOTE_SCRIPT::REMOTE_SCRIPT()
187 onAddUserNotifier(*this),
188 onDelUserNotifier(*this),
189 logger(GetPluginLogger(GetStgLogger(), "rscript"))
191 pthread_mutex_init(&mutex, NULL);
193 //-----------------------------------------------------------------------------
194 REMOTE_SCRIPT::~REMOTE_SCRIPT()
196 pthread_mutex_destroy(&mutex);
198 //-----------------------------------------------------------------------------
199 void * REMOTE_SCRIPT::Run(void * d)
202 sigfillset(&signalSet);
203 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
205 REMOTE_SCRIPT * rs = static_cast<REMOTE_SCRIPT *>(d);
207 rs->isRunning = true;
215 rs->isRunning = false;
218 //-----------------------------------------------------------------------------
219 int REMOTE_SCRIPT::ParseSettings()
221 int ret = rsSettings.ParseSettings(settings);
223 errorStr = rsSettings.GetStrError();
225 sendPeriod = rsSettings.GetSendPeriod();
226 halfPeriod = sendPeriod / 2;
230 //-----------------------------------------------------------------------------
231 int REMOTE_SCRIPT::Start()
233 netRouters = rsSettings.GetSubnetsMap();
235 InitEncrypt(&ctx, rsSettings.GetPassword());
237 users->AddNotifierUserAdd(&onAddUserNotifier);
238 users->AddNotifierUserDel(&onDelUserNotifier);
254 if (pthread_create(&thread, NULL, Run, this))
256 errorStr = "Cannot create thread.";
257 logger("Cannot create thread.");
258 printfd(__FILE__, "Cannot create thread\n");
266 //-----------------------------------------------------------------------------
267 int REMOTE_SCRIPT::Stop()
275 authorizedUsers.begin(),
276 authorizedUsers.end(),
277 DisconnectUser(*this)
284 //5 seconds to thread stops itself
285 for (int i = 0; i < 25 && isRunning; i++)
287 struct timespec ts = {0, 200000000};
288 nanosleep(&ts, NULL);
292 users->DelNotifierUserDel(&onDelUserNotifier);
293 users->DelNotifierUserAdd(&onAddUserNotifier);
297 logger("Cannot stop thread.");
303 //-----------------------------------------------------------------------------
304 int REMOTE_SCRIPT::Reload(const MODULE_SETTINGS & ms)
306 NRMapParser nrMapParser;
308 if (nrMapParser.ReadFile(rsSettings.GetMapFileName()))
310 errorStr = nrMapParser.GetErrorStr();
311 logger("Map file reading error: %s", errorStr.c_str());
316 STG_LOCKER lock(&mutex);
318 printfd(__FILE__, "REMOTE_SCRIPT::Reload()\n");
320 netRouters = nrMapParser.GetMap();
323 std::for_each(authorizedUsers.begin(),
324 authorizedUsers.end(),
325 UpdateRouter(*this));
327 logger("%s reloaded successfully.", rsSettings.GetMapFileName().c_str());
328 printfd(__FILE__, "REMOTE_SCRIPT::Reload() %s reloaded successfully.\n");
332 //-----------------------------------------------------------------------------
333 bool REMOTE_SCRIPT::PrepareNet()
335 sock = socket(AF_INET, SOCK_DGRAM, 0);
339 errorStr = "Cannot create socket.";
340 logger("Canot create a socket: %s", strerror(errno));
341 printfd(__FILE__, "Cannot create socket\n");
347 //-----------------------------------------------------------------------------
348 bool REMOTE_SCRIPT::FinalizeNet()
353 //-----------------------------------------------------------------------------
354 void REMOTE_SCRIPT::PeriodicSend()
356 STG_LOCKER lock(&mutex);
358 std::map<uint32_t, RS::USER>::iterator it(authorizedUsers.begin());
359 while (it != authorizedUsers.end())
361 if (difftime(stgTime, it->second.lastSentTime) - (rand() % halfPeriod) > sendPeriod)
368 //-----------------------------------------------------------------------------
370 bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t, RS::USER & rsu, bool forceDisconnect) const
372 bool REMOTE_SCRIPT::PreparePacket(char * buf, size_t bufSize, RS::USER & rsu, bool forceDisconnect) const
375 RS::PACKET_HEADER packetHead;
377 memset(packetHead.padding, 0, sizeof(packetHead.padding));
378 strcpy((char*)packetHead.magic, RS_ID);
379 packetHead.protoVer[0] = '0';
380 packetHead.protoVer[1] = '2';
383 packetHead.packetType = RS_DISCONNECT_PACKET;
384 printfd(__FILE__, "RSCRIPT: force disconnect for '%s'\n", rsu.user->GetLogin().c_str());
388 if (rsu.shortPacketsCount % MAX_SHORT_PCKT == 0)
391 packetHead.packetType = rsu.user->IsInetable() ? RS_CONNECT_PACKET : RS_DISCONNECT_PACKET;
392 if (rsu.user->IsInetable())
393 printfd(__FILE__, "RSCRIPT: connect for '%s'\n", rsu.user->GetLogin().c_str());
395 printfd(__FILE__, "RSCRIPT: disconnect for '%s'\n", rsu.user->GetLogin().c_str());
400 packetHead.packetType = rsu.user->IsInetable() ? RS_ALIVE_PACKET : RS_DISCONNECT_PACKET;
401 if (rsu.user->IsInetable())
402 printfd(__FILE__, "RSCRIPT: alive for '%s'\n", rsu.user->GetLogin().c_str());
404 printfd(__FILE__, "RSCRIPT: disconnect for '%s'\n", rsu.user->GetLogin().c_str());
407 rsu.shortPacketsCount++;
408 rsu.lastSentTime = stgTime;
410 packetHead.ip = htonl(rsu.ip);
411 packetHead.id = htonl(rsu.user->GetID());
412 strncpy((char*)packetHead.login, rsu.user->GetLogin().c_str(), RS_LOGIN_LEN);
413 packetHead.login[RS_LOGIN_LEN - 1] = 0;
415 memcpy(buf, &packetHead, sizeof(packetHead));
417 if (packetHead.packetType == RS_ALIVE_PACKET)
422 RS::PACKET_TAIL packetTail;
424 memset(packetTail.padding, 0, sizeof(packetTail.padding));
425 strcpy((char*)packetTail.magic, RS_ID);
426 std::vector<std::string>::const_iterator it;
428 for(it = rsSettings.GetUserParams().begin();
429 it != rsSettings.GetUserParams().end();
432 std::string parameter(rsu.user->GetParamValue(it->c_str()));
433 if (params.length() + parameter.length() > RS_PARAMS_LEN - 1)
435 logger("Script params string length %d exceeds the limit of %d symbols.", params.length() + parameter.length(), RS_PARAMS_LEN);
438 params += parameter + " ";
440 strncpy((char *)packetTail.params, params.c_str(), RS_PARAMS_LEN);
441 packetTail.params[RS_PARAMS_LEN - 1] = 0;
443 assert(sizeof(packetHead) + sizeof(packetTail) <= bufSize && "Insufficient buffer space");
445 Encrypt(&ctx, buf + sizeof(packetHead), (char *)&packetTail, sizeof(packetTail) / 8);
449 //-----------------------------------------------------------------------------
450 bool REMOTE_SCRIPT::Send(RS::USER & rsu, bool forceDisconnect) const
452 char buffer[RS_MAX_PACKET_LEN];
454 memset(buffer, 0, sizeof(buffer));
456 if (PreparePacket(buffer, sizeof(buffer), rsu, forceDisconnect))
458 printfd(__FILE__, "REMOTE_SCRIPT::Send() - Invalid packet length!\n");
465 PacketSender(sock, buffer, sizeof(buffer), static_cast<uint16_t>(htons(rsSettings.GetPort())))
470 //-----------------------------------------------------------------------------
471 bool REMOTE_SCRIPT::SendDirect(RS::USER & rsu, uint32_t routerIP, bool forceDisconnect) const
473 char buffer[RS_MAX_PACKET_LEN];
475 if (PreparePacket(buffer, sizeof(buffer), rsu, forceDisconnect))
477 printfd(__FILE__, "REMOTE_SCRIPT::SendDirect() - Invalid packet length!\n");
481 struct sockaddr_in sendAddr;
483 sendAddr.sin_family = AF_INET;
484 sendAddr.sin_port = static_cast<uint16_t>(htons(rsSettings.GetPort()));
485 sendAddr.sin_addr.s_addr = routerIP;
487 ssize_t res = sendto(sock, buffer, sizeof(buffer), 0, (struct sockaddr *)&sendAddr, sizeof(sendAddr));
490 logger("sendto error: %s", strerror(errno));
492 return (res != sizeof(buffer));
494 //-----------------------------------------------------------------------------
495 bool REMOTE_SCRIPT::GetUsers()
499 int h = users->OpenSearch();
500 assert(h && "USERS::OpenSearch is always correct");
502 while (!users->SearchNext(h, &u))
507 users->CloseSearch(h);
510 //-----------------------------------------------------------------------------
511 std::vector<uint32_t> REMOTE_SCRIPT::IP2Routers(uint32_t ip)
513 STG_LOCKER lock(&mutex);
514 for (size_t i = 0; i < netRouters.size(); ++i)
516 if ((ip & netRouters[i].subnetMask) == (netRouters[i].subnetIP & netRouters[i].subnetMask))
518 return netRouters[i].routers;
521 return std::vector<uint32_t>();
523 //-----------------------------------------------------------------------------
524 void REMOTE_SCRIPT::SetUserNotifiers(USER_PTR u)
526 ipNotifierList.push_front(RS::IP_NOTIFIER(*this, u));
527 connNotifierList.push_front(RS::CONNECTED_NOTIFIER(*this, u));
529 //-----------------------------------------------------------------------------
530 void REMOTE_SCRIPT::UnSetUserNotifiers(USER_PTR u)
532 ipNotifierList.erase(std::remove_if(ipNotifierList.begin(),
533 ipNotifierList.end(),
534 USER_IS<IP_NOTIFIER>(u)),
535 ipNotifierList.end());
536 connNotifierList.erase(std::remove_if(connNotifierList.begin(),
537 connNotifierList.end(),
538 USER_IS<CONNECTED_NOTIFIER>(u)),
539 connNotifierList.end());
542 //-----------------------------------------------------------------------------
543 void REMOTE_SCRIPT::AddRSU(USER_PTR user)
545 RS::USER rsu(IP2Routers(user->GetCurrIP()), user);
548 STG_LOCKER lock(&mutex);
549 authorizedUsers.insert(std::make_pair(user->GetCurrIP(), rsu));
551 //-----------------------------------------------------------------------------
552 void REMOTE_SCRIPT::DelRSU(USER_PTR user)
554 STG_LOCKER lock(&mutex);
555 std::map<uint32_t, RS::USER>::iterator it(authorizedUsers.begin());
556 while (it != authorizedUsers.end())
558 if (it->second.user == user)
560 Send(it->second, true);
561 authorizedUsers.erase(it);
566 /*const std::map<uint32_t, RS::USER>::iterator it(
567 authorizedUsers.find(user->GetCurrIP())
569 if (it != authorizedUsers.end())
571 Send(it->second, true);
572 authorizedUsers.erase(it);
575 //-----------------------------------------------------------------------------
576 void RS::IP_NOTIFIER::Notify(const uint32_t & /*oldValue*/, const uint32_t & newValue)
583 //-----------------------------------------------------------------------------
584 void RS::CONNECTED_NOTIFIER::Notify(const bool & /*oldValue*/, const bool & newValue)
591 //-----------------------------------------------------------------------------
592 void REMOTE_SCRIPT::InitEncrypt(BLOWFISH_CTX * ctx, const std::string & password) const
594 unsigned char keyL[PASSWD_LEN]; // Пароль для шифровки
595 memset(keyL, 0, PASSWD_LEN);
596 strncpy((char *)keyL, password.c_str(), PASSWD_LEN);
597 Blowfish_Init(ctx, keyL, PASSWD_LEN);
599 //-----------------------------------------------------------------------------
600 void REMOTE_SCRIPT::Encrypt(BLOWFISH_CTX * ctx, void * dst, const void * src, size_t len8) const
603 memcpy(dst, src, len8 * 8);
604 for (size_t i = 0; i < len8; ++i)
605 Blowfish_Encrypt(ctx, static_cast<uint32_t *>(dst) + i * 2, static_cast<uint32_t *>(dst) + i * 2 + 1);
607 //-----------------------------------------------------------------------------