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>
23 $Date: 2010/10/04 20:19:12 $
28 #include <sys/types.h>
29 #include <sys/socket.h>
30 #include <netinet/in.h>
31 #include <arpa/inet.h>
51 #include "traffcounter.h"
52 #include "base_plugin.h"
53 #include "stg_logger.h"
54 #include "stg_timer.h"
55 #include "plugin_runner.h"
56 #include "script_executer.h"
57 #include "conffiles.h"
59 #include "store_loader.h"
61 #include "eventloop.h"
67 #define MAIN_DEBUG (1)
71 #define START_FILE "/._ST_ART_ED_"
73 static bool needRulesReloading = false;
74 static bool childExited = false;
75 //static pid_t executerPid;
76 set<pid_t> executersPid;
77 static pid_t stgChildPid;
81 //-----------------------------------------------------------------------------
82 bool StartModCmp(const PLUGIN_RUNNER & lhs, const PLUGIN_RUNNER & rhs)
84 return lhs.GetStartPosition() < rhs.GetStartPosition();
86 //-----------------------------------------------------------------------------
87 bool StopModCmp(const PLUGIN_RUNNER & lhs, const PLUGIN_RUNNER & rhs)
89 return lhs.GetStopPosition() > rhs.GetStopPosition();
91 //-----------------------------------------------------------------------------
95 STG_STOPPER() { nonstop = true; }
96 bool GetStatus() const { return nonstop; };
98 void Stop(const char * __file__, int __line__)
100 void Stop(const char *, int)
104 printfd(__FILE__, "Stg stopped at %s:%d\n", __file__, __line__);
111 //-----------------------------------------------------------------------------
113 //-----------------------------------------------------------------------------
114 static void StartTimer()
116 STG_LOGGER & WriteServLog = GetStgLogger();
120 WriteServLog("Cannot start timer. Fatal.");
121 //printfd(__FILE__, "Cannot start timer. Fatal.\n");
126 WriteServLog("Timer thread started successfully.");
127 //printfd(__FILE__, "Timer thread started successfully.\n");
130 //-----------------------------------------------------------------------------
135 //-----------------------------------------------------------------------------
136 void CatchTERM(int sig)
139 *Function Name:CatchINT
140 *Parameters: sig_num - ÎÏÍÅÒ ÓÉÇÎÁÌÁ
141 *Description: ïÂÒÁÂÏÔÞÉË ÓÉÇÎÁÌÁ INT
144 STG_LOGGER & WriteServLog = GetStgLogger();
145 WriteServLog("Shutting down... %d", sig);
148 nonstop.Stop(__FILE__, __LINE__);
150 struct sigaction newsa, oldsa;
153 sigemptyset(&sigmask);
154 sigaddset(&sigmask, SIGTERM);
155 newsa.sa_handler = SIG_IGN;
156 newsa.sa_mask = sigmask;
158 sigaction(SIGTERM, &newsa, &oldsa);
160 sigemptyset(&sigmask);
161 sigaddset(&sigmask, SIGINT);
162 newsa.sa_handler = SIG_IGN;
163 newsa.sa_mask = sigmask;
165 sigaction(SIGINT, &newsa, &oldsa);
167 //-----------------------------------------------------------------------------
170 STG_LOGGER & WriteServLog = GetStgLogger();
171 WriteServLog("Broken pipe!");
173 //-----------------------------------------------------------------------------
176 needRulesReloading = true;
178 //-----------------------------------------------------------------------------
183 childPid = waitpid(-1, &status, WNOHANG);
185 set<pid_t>::iterator pid;
186 pid = executersPid.find(childPid);
187 if (pid != executersPid.end())
189 executersPid.erase(pid);
190 if (executersPid.empty() && nonstop.GetStatus())
192 nonstop.Stop(__FILE__, __LINE__);
195 if (childPid == stgChildPid)
200 /*//-----------------------------------------------------------------------------
201 void CatchSEGV(int, siginfo_t *, void *)
204 sprintf(fileName, "/tmp/stg_segv.%d", getpid());
205 FILE * f = fopen(fileName, "wt");
208 fprintf(f, "\nSignal info:\n~~~~~~~~~~~~\n");
209 fprintf(f, "numb:\t %d (%d)\n", sinfo->si_signo, sig);
210 fprintf(f, "errn:\t %d\n", sinfo->si_errno);
211 fprintf(f, "code:\t %d ", sinfo->si_code);
213 switch (sinfo->si_code)
216 fprintf(f, "(SEGV_MAPERR - address not mapped to object)\n");
220 fprintf(f, "(SEGV_ACCERR - invalid permissions for mapped object)\n");
227 fprintf(f, "addr:\t 0x%.8X\n",
228 (unsigned int)sinfo->si_addr);
231 //asm("movl %eip, eip");
232 if (dladdr((void*)CatchCHLD, &dlinfo))
234 fprintf(f, "SEGV point: %s %s\n", dlinfo.dli_fname, dlinfo.dli_sname);
238 fprintf(f, "Cannot find SEGV point\n");
244 struct sigaction segv_action, segv_action_old;
246 segv_action.sa_handler = SIG_DFL;
247 segv_action.sa_sigaction = NULL;
248 segv_action.sa_flags = SA_SIGINFO;
249 segv_action.sa_restorer = NULL;
251 sigaction(SIGSEGV, &segv_action, &segv_action_old);
253 //-----------------------------------------------------------------------------
254 static void SetSignalHandlers()
256 struct sigaction newsa, oldsa;
259 sigemptyset(&sigmask);
260 sigaddset(&sigmask, SIGTERM);
261 newsa.sa_handler = CatchTERM;
262 newsa.sa_mask = sigmask;
264 sigaction(SIGTERM, &newsa, &oldsa);
266 sigemptyset(&sigmask);
267 sigaddset(&sigmask, SIGUSR1);
268 newsa.sa_handler = CatchUSR1;
269 newsa.sa_mask = sigmask;
271 sigaction(SIGUSR1, &newsa, &oldsa);
273 sigemptyset(&sigmask);
274 sigaddset(&sigmask, SIGINT);
275 newsa.sa_handler = CatchTERM;
276 newsa.sa_mask = sigmask;
278 sigaction(SIGINT, &newsa, &oldsa);
280 sigemptyset(&sigmask);
281 sigaddset(&sigmask, SIGPIPE);
282 newsa.sa_handler = CatchPIPE;
283 newsa.sa_mask = sigmask;
285 sigaction(SIGPIPE, &newsa, &oldsa);
287 sigemptyset(&sigmask);
288 sigaddset(&sigmask, SIGHUP);
289 newsa.sa_handler = CatchHUP;
290 newsa.sa_mask = sigmask;
292 sigaction(SIGHUP, &newsa, &oldsa);
294 sigemptyset(&sigmask);
295 sigaddset(&sigmask, SIGCHLD);
296 newsa.sa_handler = CatchCHLD;
297 newsa.sa_mask = sigmask;
299 sigaction(SIGCHLD, &newsa, &oldsa);
301 /*newsa.sa_handler = NULL;
302 newsa.sa_sigaction = CatchSEGV;
303 newsa.sa_flags = SA_SIGINFO;
304 newsa.sa_restorer = NULL;
305 sigaction(SIGSEGV, &newsa, &oldsa);*/
309 //-----------------------------------------------------------------------------
310 int StartScriptExecuter(char * procName, int msgKey, int * msgID, SETTINGS * settings)
312 STG_LOGGER & WriteServLog = GetStgLogger();
314 if (*msgID == -11) // If msgID == -11 - first call. Create queue
316 for (int i = 0; i < 2; i++)
318 //WriteServLog("Creating queue with key=%d ...", msgKey);
319 *msgID = msgget(msgKey, IPC_CREAT | IPC_EXCL | 0600);
323 *msgID = msgget(msgKey, 0);
326 WriteServLog("Message queue not created.");
331 msgctl(*msgID, IPC_RMID, NULL);
332 //printfd(__FILE__, "Queue removed!");
337 WriteServLog("Message queue created successfully. msgKey=%d msgID=%d", msgKey, *msgID);
343 pid_t executerPid = fork();
348 WriteServLog("Fork error!");
357 Executer(msgKey, *msgID, executerPid, procName);
360 default: // ïÓÎÏ×ÎÏÊ ÐÒÏÃÅÓÓ
361 if (executersPid.empty()) {
362 Executer(msgKey, *msgID, executerPid, NULL);
364 executersPid.insert(executerPid);
368 //-----------------------------------------------------------------------------
370 int ForkAndWait(const string & confDir)
372 int ForkAndWait(const string &)
376 stgChildPid = fork();
377 string startFile = confDir + START_FILE;
378 unlink(startFile.c_str());
393 default: // ïÓÎÏ×ÎÏÊ ÐÒÏÃÅÓÓ
394 for (int i = 0; i < 120 * 5; i++)
396 if (access(startFile.c_str(), F_OK) == 0)
398 //printf("Fork successfull. Exit.\n");
399 unlink(startFile.c_str());
405 unlink(startFile.c_str());
410 unlink(startFile.c_str());
417 //-----------------------------------------------------------------------------
420 set<pid_t>::iterator pid;
421 pid = executersPid.begin();
422 while (pid != executersPid.end())
424 printfd(__FILE__, "KillExecuters pid=%d\n", *pid);
429 //-----------------------------------------------------------------------------
430 int main(int argc, char * argv[])
434 Initialization order:
447 - Set signal nandlers
451 SETTINGS * settings = NULL;
452 BASE_STORE * dataStore = NULL;
453 TARIFFS * tariffs = NULL;
454 ADMINS * admins = NULL;
455 USERS * users = NULL;
456 TRAFFCOUNTER * traffCnt = NULL;
460 STG_LOGGER & WriteServLog = GetStgLogger();
461 WriteServLog.SetLogFileName("/var/log/stargazer.log");
464 vector<MODULE_SETTINGS> modSettings;
465 list<PLUGIN_RUNNER> modules;
467 list<PLUGIN_RUNNER>::iterator modIter;
471 printf("You must be root. Exit.\n");
476 settings = new SETTINGS(argv[1]);
478 settings = new SETTINGS();
480 if (settings->ReadSettings())
482 //printfd(__FILE__, "ReadSettings error.\n");
483 STG_LOGGER & WriteServLog = GetStgLogger();
485 if (settings->GetLogFileName() != "")
486 WriteServLog.SetLogFileName(settings->GetLogFileName());
488 WriteServLog("ReadSettings error. %s", settings->GetStrError().c_str());
493 string startFile(settings->GetConfDir() + START_FILE);
496 //SetSignalHandlers();
497 if (ForkAndWait(settings->GetConfDir()) < 0)
499 STG_LOGGER & WriteServLog = GetStgLogger();
500 WriteServLog("Fork error!");
504 STG_LOGGER & WriteServLog = GetStgLogger();
505 WriteServLog.SetLogFileName(settings->GetLogFileName());
506 WriteServLog("Stg v. %s", SERVER_VERSION);
508 for (int i = 0; i < settings->GetExecutersNum(); i++)
510 int ret = StartScriptExecuter(argv[0], settings->GetExecMsgKey(), &msgID, settings);
513 STG_LOGGER & WriteServLog = GetStgLogger();
514 WriteServLog("Start Script Executer error!");
525 PIDFile pidFile(settings->GetPIDFileName());
529 if (!IsStgTimerRunning())
531 printfd(__FILE__, "Timer thread not started in 1 sec!\n");
532 WriteServLog("Timer thread not started in 1 sec!");
535 EVENT_LOOP & loop(EVENT_LOOP_SINGLETON::GetInstance());
537 STORE_LOADER storeLoader(*settings);
538 if (storeLoader.Load())
540 WriteServLog("Storage plugin: '%s'", storeLoader.GetStrError().c_str());
541 goto exitLblNotStarted;
546 WriteServLog("Event loop not started.");
547 goto exitLblNotStarted;
550 dataStore = storeLoader.GetStore();
551 WriteServLog("Storage plugin: %s. Loading successfull.", dataStore->GetVersion().c_str());
553 tariffs = new TARIFFS(dataStore);
554 admins = new ADMINS(dataStore);
555 users = new USERS(settings, dataStore, tariffs, admins->GetSysAdmin());
556 traffCnt = new TRAFFCOUNTER(users, tariffs, settings->GetRulesFileName());
557 traffCnt->SetMonitorDir(settings->GetMonitorDir());
558 //tariffs->SetUsers(users);
560 modSettings = settings->GetModulesSettings();
562 for (unsigned i = 0; i < modSettings.size(); i++)
564 string modulePath = settings->GetModulesPath();
565 modulePath += "/mod_";
566 modulePath += modSettings[i].moduleName;
568 printfd(__FILE__, "Module: %s\n", modulePath.c_str());
570 PLUGIN_RUNNER(modulePath,
581 modIter = modules.begin();
583 while (modIter != modules.end())
588 WriteServLog("Error: %s",
589 modIter->GetStrError().c_str());
590 goto exitLblNotStarted;
598 goto exitLblNotStarted;
600 WriteServLog("Users started successfully.");
602 if (traffCnt->Start())
604 goto exitLblNotStarted;
606 WriteServLog("Traffcounter started successfully.");
608 //Sort by start order
609 modules.sort(StartModCmp);
610 modIter = modules.begin();
612 while (modIter != modules.end())
614 if (modIter->Start())
616 WriteServLog("Error: %s",
617 modIter->GetStrError().c_str());
618 //printfd(__FILE__, "Error: %s\n", capRunner.GetStrError().c_str());
621 WriteServLog("Module: \'%s\'. Start successfull. %d", modIter->GetPlugin()->GetVersion().c_str(),
622 modIter->GetPlugin()->GetStartPosition());
630 * Note that an implementation in which nice returns the new nice value
631 * can legitimately return -1. To reliably detect an error, set
632 * errno to 0 before the call, and check its value when nice returns -1.
638 if (nice(-19) && errno) {
639 printfd(__FILE__, "nice failed: '%s'\n", strerror(errno));
640 WriteServLog("nice failed: '%s'", strerror(errno));
643 WriteServLog("Stg started successfully.");
644 WriteServLog("+++++++++++++++++++++++++++++++++++++++++++++");
647 creat(startFile.c_str(), S_IRUSR);
652 while (nonstop.GetStatus())
654 if (needRulesReloading)
656 needRulesReloading = false;
659 modIter = modules.begin();
660 for (; modIter != modules.end(); ++modIter)
662 if (modIter->Reload())
664 WriteServLog("Error reloading %s ('%s')", modIter->GetPlugin()->GetVersion().c_str(),
665 modIter->GetStrError().c_str());
666 printfd(__FILE__, "Error reloading %s ('%s')\n", modIter->GetPlugin()->GetVersion().c_str(),
667 modIter->GetStrError().c_str());
676 WriteServLog("+++++++++++++++++++++++++++++++++++++++++++++");
678 //Sort by start order
679 modules.sort(StopModCmp);
680 modIter = modules.begin();
681 while (modIter != modules.end())
683 std::string name = modIter->GetFileName();
684 printfd(__FILE__, "Stopping module '%s'\n", name.c_str());
687 WriteServLog("Module \'%s\': Error: %s",
688 modIter->GetPlugin()->GetVersion().c_str(),
689 modIter->GetStrError().c_str());
690 printfd(__FILE__, "Failed to stop module '%s'\n", name.c_str());
691 //printfd(__FILE__, "Error: %s\n", capRunner.GetStrError().c_str());
694 WriteServLog("Module: \'%s\'. Stop successfull.", modIter->GetPlugin()->GetVersion().c_str());
700 WriteServLog("Event loop not stopped.");
705 /*modIter = modules.begin();
706 while (modIter != modules.end())
708 std::string name = modIter->GetFileName();
709 printfd(__FILE__, "Unloading module '%s'\n", name.c_str());
710 if (modIter->Unload())
712 WriteServLog("Module \'%s\': Error: %s",
714 modIter->GetStrError().c_str());
715 printfd(__FILE__, "Failed to unload module '%s'\n", name.c_str());
723 WriteServLog("Traffcounter: Stop successfull.");
729 WriteServLog("Users: Stop successfull.");
733 int res = msgctl(msgID, IPC_RMID, NULL);
735 WriteServLog("Queue was not removed. id=%d", msgID);
737 WriteServLog("Queue removed successfully.");
739 /*struct sigaction newsa, oldsa;
741 sigemptyset(&sigmask);
742 sigaddset(&sigmask, SIGCHLD);
743 newsa.sa_handler = SIG_IGN;
744 newsa.sa_mask = sigmask;
746 sigaction(SIGCHLD, &newsa, &oldsa);*/
751 WriteServLog("StgTimer: Stop successfull.");
753 WriteServLog("Stg stopped successfully.");
755 WriteServLog("---------------------------------------------");
765 //-----------------------------------------------------------------------------