projects/stargazer/traffcounter_impl.cpp

   1 /*
   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.
   6  *
   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.
  11  *
  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
  15  */
  16
  17 /*
  18  *    Date: 27.10.2002
  19  */
  20
  21 /*
  22  *    Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
  23  */
  24
  25 /*
  26  $Revision: 1.58 $
  27  $Date: 2010/11/03 11:28:07 $
  28  $Author: faust $
  29  */
  30
  31 /* inet_aton */
  32 #include <sys/types.h>
  33 #include <sys/socket.h>
  34 #include <netinet/in.h>
  35 #include <arpa/inet.h>
  36
  37 #include <csignal>
  38 #include <cassert>
  39 #include <cstdio> // fopen and similar
  40 #include <cstdlib> // strtol
  41
  42 #include "stg/common.h"
  43 #include "stg/locker.h"
  44 #include "stg/const.h" // MONITOR_TIME_DELAY_SEC
  45 #include "traffcounter_impl.h"
  46 #include "stg_timer.h"
  47 #include "users_impl.h"
  48 #include "async_pool.h"
  49
  50 #define FLUSH_TIME  (10)
  51 #define REMOVE_TIME  (31)
  52
  53 using STG::TraffCounterImpl;
  54
  55 namespace AsyncPoolST = STG::AsyncPoolST;
  56
  57 const char protoName[PROTOMAX][8] =
  58 {"TCP", "UDP", "ICMP", "TCP_UDP", "ALL"};
  59
  60 enum protoNum
  61 {
  62 tcp = 0, udp, icmp, tcp_udp, all
  63 };
  64
  65 //-----------------------------------------------------------------------------
  66 TraffCounterImpl::TraffCounterImpl(UsersImpl * u, const std::string & fn)
  67     : WriteServLog(Logger::get()),
  68       rulesFileName(fn),
  69       monitoring(false),
  70       touchTimeP(stgTime - MONITOR_TIME_DELAY_SEC),
  71       users(u),
  72       stopped(true)
  73 {
  74 for (int i = 0; i < DIR_NUM; i++)
  75     strprintf(&dirName[i], "DIR%d", i);
  76
  77 dirName[DIR_NUM] = "NULL";
  78
  79 m_onAddUserConn = users->onImplAdd([this](auto user){
  80     AsyncPoolST::enqueue([this, user](){ SetUserNotifiers(user); });
  81 });
  82 m_onDelUserConn = users->onImplDel([this](auto user){
  83     AsyncPoolST::enqueue([this, user](){ UnSetUserNotifiers(user); DelUser(user->GetCurrIP()); });
  84 });
  85 }
  86 //-----------------------------------------------------------------------------
  87 TraffCounterImpl::~TraffCounterImpl()
  88 {
  89 }
  90 //-----------------------------------------------------------------------------
  91 int TraffCounterImpl::Start()
  92 {
  93 std::lock_guard<std::mutex> lock(m_mutex);
  94
  95 if (!stopped)
  96     return 0;
  97
  98 if (ReadRules())
  99     {
 100     printfd(__FILE__, "TraffCounterImpl::Start() - Cannot read rules\n");
 101     WriteServLog("TraffCounter: Cannot read rules.");
 102     return -1;
 103     }
 104
 105 printfd(__FILE__, "TraffCounter::Start()\n");
 106 int h = users->OpenSearch();
 107 assert(h && "USERS::OpenSearch is always correct");
 108 UserImpl * u;
 109
 110 while (users->SearchNext(h, &u) == 0)
 111     SetUserNotifiers(u);
 112 users->CloseSearch(h);
 113
 114 m_thread = std::jthread([this](auto token){ Run(std::move(token)); });
 115 return 0;
 116 }
 117 //-----------------------------------------------------------------------------
 118 int TraffCounterImpl::Stop()
 119 {
 120 if (stopped)
 121     return 0;
 122
 123 m_thread.request_stop();
 124
 125 int h = users->OpenSearch();
 126 assert(h && "USERS::OpenSearch is always correct");
 127
 128 m_onIPConns.clear();
 129
 130 //5 seconds to thread stops itself
 131 struct timespec ts = {0, 200000000};
 132 for (int i = 0; i < 25 && !stopped; i++)
 133     nanosleep(&ts, NULL);
 134
 135 if (!stopped)
 136 {
 137     m_thread.detach();
 138     return -1;
 139 }
 140
 141 m_thread.join();
 142
 143 printfd(__FILE__, "TraffCounter::Stop()\n");
 144
 145 return 0;
 146 }
 147 //-----------------------------------------------------------------------------
 148 void TraffCounterImpl::Run(std::stop_token token)
 149 {
 150 sigset_t signalSet;
 151 sigfillset(&signalSet);
 152 pthread_sigmask(SIG_BLOCK, &signalSet, NULL);
 153
 154 stopped = false;
 155 int c = 0;
 156
 157 time_t touchTime = stgTime - MONITOR_TIME_DELAY_SEC;
 158 struct timespec ts = {0, 500000000};
 159 while (!token.stop_requested())
 160     {
 161     nanosleep(&ts, 0);
 162     if (token.stop_requested())
 163         {
 164         FlushAndRemove();
 165         break;
 166         }
 167
 168     if (monitoring && (touchTime + MONITOR_TIME_DELAY_SEC <= stgTime))
 169         {
 170         std::string monFile(monitorDir + "/traffcounter_r");
 171         printfd(__FILE__, "Monitor=%d file TraffCounter %s\n", monitoring, monFile.c_str());
 172         touchTime = stgTime;
 173         TouchFile(monFile);
 174         }
 175
 176     if (++c % FLUSH_TIME == 0)
 177         FlushAndRemove();
 178     }
 179
 180 stopped = true;
 181 }
 182 //-----------------------------------------------------------------------------
 183 void TraffCounterImpl::process(const RawPacket & rawPacket)
 184 {
 185 if (monitoring && (touchTimeP + MONITOR_TIME_DELAY_SEC <= stgTime))
 186     {
 187     std::string monFile = monitorDir + "/traffcounter_p";
 188     printfd(__FILE__, "Monitor=%d file TraffCounter %s\n", monitoring, monFile.c_str());
 189     touchTimeP = stgTime;
 190     TouchFile(monFile);
 191     }
 192
 193 std::lock_guard<std::mutex> lock(m_mutex);
 194
 195 //printfd(__FILE__, "TraffCounter::Process()\n");
 196 //TODO replace find with lower_bound.
 197
 198 // Searching a new packet in a tree.
 199 pp_iter pi = packets.find(rawPacket);
 200
 201 // Packet found - update length and time
 202 if (pi != packets.end())
 203     {
 204     pi->second.lenU += rawPacket.GetLen();
 205     pi->second.lenD += rawPacket.GetLen();
 206     pi->second.updateTime = stgTime;
 207     /*printfd(__FILE__, "=============================\n");
 208     printfd(__FILE__, "Packet found!\n");
 209     printfd(__FILE__, "Version=%d\n", rawPacket.GetIPVersion());
 210     printfd(__FILE__, "HeaderLen=%d\n", rawPacket.GetHeaderLen());
 211     printfd(__FILE__, "PacketLen=%d\n", rawPacket.GetLen());
 212     printfd(__FILE__, "SIP=%s\n", inet_ntostring(rawPacket.GetSrcIP()).c_str());
 213     printfd(__FILE__, "DIP=%s\n", inet_ntostring(rawPacket.GetDstIP()).c_str());
 214     printfd(__FILE__, "src port=%d\n", rawPacket.GetSrcPort());
 215     printfd(__FILE__, "pst port=%d\n", rawPacket.GetDstPort());
 216     printfd(__FILE__, "len=%d\n", rawPacket.GetLen());
 217     printfd(__FILE__, "proto=%d\n", rawPacket.GetProto());
 218     printfd(__FILE__, "PacketDirU=%d\n", pi->second.dirU);
 219     printfd(__FILE__, "PacketDirD=%d\n", pi->second.dirD);
 220     printfd(__FILE__, "=============================\n");*/
 221     return;
 222     }
 223
 224 PacketExtraData ed;
 225
 226 // Packet not found - add new packet
 227
 228 ed.updateTime = stgTime;
 229 ed.flushTime = stgTime;
 230
 231 /*
 232  userU is that whose user_ip == packet_ip_src
 233  userD is that whose user_ip == packet_ip_dst
 234  */
 235
 236 uint32_t ipU = rawPacket.GetSrcIP();
 237 uint32_t ipD = rawPacket.GetDstIP();
 238
 239 // Searching users with such IP
 240 if (users->FindByIPIdx(ipU, &ed.userU) == 0)
 241     {
 242     ed.userUPresent = true;
 243     }
 244
 245 if (users->FindByIPIdx(ipD, &ed.userD) == 0)
 246     {
 247     ed.userDPresent = true;
 248     }
 249
 250 if (ed.userUPresent ||
 251     ed.userDPresent)
 252     {
 253     DeterminateDir(rawPacket, &ed.dirU, &ed.dirD);
 254
 255     ed.lenD = ed.lenU = rawPacket.GetLen();
 256
 257     //TODO use result of lower_bound to inserting new record
 258
 259     // Adding packet to a tree.
 260     std::pair<pp_iter, bool> insertResult = packets.insert(std::make_pair(rawPacket, ed));
 261     pp_iter newPacket = insertResult.first;
 262
 263     // Adding packet reference to an IP index.
 264     ip2packets.insert(std::make_pair(ipU, newPacket));
 265     ip2packets.insert(std::make_pair(ipD, newPacket));
 266     }
 267 }
 268 //-----------------------------------------------------------------------------
 269 void TraffCounterImpl::FlushAndRemove()
 270 {
 271 std::lock_guard<std::mutex> lock(m_mutex);
 272
 273 Packets::size_type oldPacketsSize = packets.size();
 274 Index::size_type oldIp2packetsSize = ip2packets.size();
 275
 276 pp_iter pi;
 277 pi = packets.begin();
 278 Packets newPackets;
 279 ip2packets.erase(ip2packets.begin(), ip2packets.end());
 280 while (pi != packets.end())
 281     {
 282     //Flushing
 283     if (stgTime - pi->second.flushTime > FLUSH_TIME)
 284         {
 285         if (pi->second.userUPresent)
 286             {
 287             //printfd(__FILE__, "+++ Flushing U user %s (%s:%d) of length %d\n", pi->second.userU->GetLogin().c_str(), inet_ntostring(pi->first.GetSrcIP()).c_str(), pi->first.GetSrcPort(), pi->second.lenU);
 288
 289             // Add stat
 290             if (pi->second.dirU < DIR_NUM)
 291                 {
 292                 #ifdef TRAFF_STAT_WITH_PORTS
 293                 pi->second.userU->AddTraffStatU(pi->second.dirU,
 294                                                 pi->first.GetDstIP(),
 295                                                 pi->first.GetDstPort(),
 296                                                 pi->second.lenU);
 297                 #else
 298                 pi->second.userU->AddTraffStatU(pi->second.dirU,
 299                                                 pi->first.GetDstIP(),
 300                                                 pi->second.lenU);
 301                 #endif
 302                 }
 303
 304             pi->second.lenU = 0;
 305             pi->second.flushTime = stgTime;
 306             }
 307
 308         if (pi->second.userDPresent)
 309             {
 310             //printfd(__FILE__, "+++ Flushing D user %s (%s:%d) of length %d\n", pi->second.userD->GetLogin().c_str(), inet_ntostring(pi->first.GetDstIP()).c_str(), pi->first.GetDstPort(), pi->second.lenD);
 311
 312             // Add stat
 313             if (pi->second.dirD < DIR_NUM)
 314                 {
 315                 #ifdef TRAFF_STAT_WITH_PORTS
 316                 pi->second.userD->AddTraffStatD(pi->second.dirD,
 317                                                 pi->first.GetSrcIP(),
 318                                                 pi->first.GetSrcPort(),
 319                                                 pi->second.lenD);
 320                 #else
 321                 pi->second.userD->AddTraffStatD(pi->second.dirD,
 322                                                 pi->first.GetSrcIP(),
 323                                                 pi->second.lenD);
 324                 #endif
 325                 }
 326
 327             pi->second.lenD = 0;
 328             pi->second.flushTime = stgTime;
 329             }
 330         }
 331
 332     if (stgTime - pi->second.updateTime < REMOVE_TIME)
 333         {
 334         std::pair<pp_iter, bool> res = newPackets.insert(*pi);
 335         if (res.second)
 336             {
 337             ip2packets.insert(std::make_pair(pi->first.GetSrcIP(), res.first));
 338             ip2packets.insert(std::make_pair(pi->first.GetDstIP(), res.first));
 339             }
 340         }
 341     ++pi;
 342     }
 343 swap(packets, newPackets);
 344 printfd(__FILE__, "FlushAndRemove() packets: %d(rem %d) ip2packets: %d(rem %d)\n",
 345         packets.size(),
 346         oldPacketsSize - packets.size(),
 347         ip2packets.size(),
 348         oldIp2packetsSize - ip2packets.size());
 349
 350 }
 351 //-----------------------------------------------------------------------------
 352 void TraffCounterImpl::AddUser(UserImpl * user)
 353 {
 354 printfd(__FILE__, "AddUser: %s\n", user->GetLogin().c_str());
 355 uint32_t uip = user->GetCurrIP();
 356 std::pair<ip2p_iter, ip2p_iter> pi;
 357
 358 std::lock_guard<std::mutex> lock(m_mutex);
 359 // Find all packets with IP belongs to this user
 360 pi = ip2packets.equal_range(uip);
 361
 362 while (pi.first != pi.second)
 363     {
 364     if (pi.first->second->first.GetSrcIP() == uip)
 365         {
 366         assert((!pi.first->second->second.userUPresent ||
 367                  pi.first->second->second.userU == user) &&
 368                "U user present but it's not current user");
 369
 370         pi.first->second->second.lenU = 0;
 371         pi.first->second->second.userU = user;
 372         pi.first->second->second.userUPresent = true;
 373         }
 374
 375     if (pi.first->second->first.GetDstIP() == uip)
 376         {
 377         assert((!pi.first->second->second.userDPresent ||
 378                  pi.first->second->second.userD == user) &&
 379                "D user present but it's not current user");
 380
 381         pi.first->second->second.lenD = 0;
 382         pi.first->second->second.userD = user;
 383         pi.first->second->second.userDPresent = true;
 384         }
 385
 386     ++pi.first;
 387     }
 388 }
 389 //-----------------------------------------------------------------------------
 390 void TraffCounterImpl::DelUser(uint32_t uip)
 391 {
 392 printfd(__FILE__, "DelUser: %s \n", inet_ntostring(uip).c_str());
 393 std::pair<ip2p_iter, ip2p_iter> pi;
 394
 395 std::lock_guard<std::mutex> lock(m_mutex);
 396 pi = ip2packets.equal_range(uip);
 397
 398 while (pi.first != pi.second)
 399     {
 400     if (pi.first->second->first.GetSrcIP() == uip)
 401         {
 402         if (pi.first->second->second.dirU < DIR_NUM && pi.first->second->second.userUPresent)
 403             {
 404             #ifdef TRAFF_STAT_WITH_PORTS
 405             pi.first->second->second.userU->AddTraffStatU(pi.first->second->second.dirU,
 406                                                           pi.first->second->first.GetDstIP(),
 407                                                           pi.first->second->first.GetDstPort(),
 408                                                           pi.first->second->second.lenU);
 409             #else
 410             pi.first->second->second.userU->AddTraffStatU(pi.first->second->second.dirU,
 411                                                           pi.first->second->first.GetDstIP(),
 412                                                           pi.first->second->second.lenU);
 413             #endif
 414             }
 415         pi.first->second->second.userUPresent = false;
 416         }
 417
 418     if (pi.first->second->first.GetDstIP() == uip)
 419         {
 420         if (pi.first->second->second.dirD < DIR_NUM && pi.first->second->second.userDPresent)
 421             {
 422             #ifdef TRAFF_STAT_WITH_PORTS
 423             pi.first->second->second.userD->AddTraffStatD(pi.first->second->second.dirD,
 424                                                           pi.first->second->first.GetSrcIP(),
 425                                                           pi.first->second->first.GetSrcPort(),
 426                                                           pi.first->second->second.lenD);
 427             #else
 428             pi.first->second->second.userD->AddTraffStatD(pi.first->second->second.dirD,
 429                                                           pi.first->second->first.GetSrcIP(),
 430                                                           pi.first->second->second.lenD);
 431             #endif
 432             }
 433
 434         pi.first->second->second.userDPresent = false;
 435         }
 436
 437     ++pi.first;
 438     }
 439
 440 ip2packets.erase(pi.first, pi.second);
 441 }
 442 //-----------------------------------------------------------------------------
 443 void TraffCounterImpl::SetUserNotifiers(UserImpl* user)
 444 {
 445     // Adding user. Adding notifiers to user.
 446     m_onIPConns.emplace_back(
 447         user->GetID(),
 448         user->beforeCurrIPChange([this](auto oldVal, auto /*newVal*/){ beforeIPChange(oldVal); }),
 449         user->afterCurrIPChange([this, user](auto /*oldVal*/, auto newVal){ afterIPChange(user, newVal); })
 450     );
 451 }
 452 //-----------------------------------------------------------------------------
 453 void TraffCounterImpl::UnSetUserNotifiers(UserImpl * user)
 454 {
 455     // Removing user. Removing notifiers from user.
 456     m_onIPConns.erase(std::remove_if(m_onIPConns.begin(), m_onIPConns.end(),
 457                                      [user](const auto& cs){ return std::get<0>(cs) == user->GetID(); }),
 458                       m_onIPConns.end());
 459 }
 460 //-----------------------------------------------------------------------------
 461 void TraffCounterImpl::DeterminateDir(const RawPacket & packet,
 462                                        int * dirU, // Direction for incoming packet
 463                                        int * dirD) const // Direction for outgoing packet
 464 {
 465 bool addrMatchU = false;
 466 bool portMatchU = false;
 467 bool addrMatchD = false;
 468 bool portMatchD = false;
 469 bool foundU = false; // Was rule for U found ?
 470 bool foundD = false; // Was rule for D found ?
 471 //printfd(__FILE__, "foundU=%d, foundD=%d\n", foundU, foundD);
 472
 473 enum { ICMP_RPOTO = 1, TCP_PROTO = 6, UDP_PROTO = 17 };
 474
 475 std::list<Rule>::const_iterator ln;
 476 ln = rules.begin();
 477
 478 while (ln != rules.end())
 479     {
 480     if (!foundU)
 481         {
 482         portMatchU = false;
 483
 484         switch (ln->proto)
 485             {
 486             case all:
 487                 portMatchU = true;
 488                 break;
 489
 490             case icmp:
 491                 portMatchU = (packet.GetProto() == ICMP_RPOTO);
 492                 break;
 493
 494             case tcp_udp:
 495                 if (packet.GetProto() == TCP_PROTO || packet.GetProto() == UDP_PROTO)
 496                     portMatchU = (packet.GetDstPort() >= ln->port1) && (packet.GetDstPort() <= ln->port2);
 497                 break;
 498
 499             case tcp:
 500                 if (packet.GetProto() == TCP_PROTO)
 501                     portMatchU = (packet.GetDstPort() >= ln->port1) && (packet.GetDstPort() <= ln->port2);
 502                 break;
 503
 504             case udp:
 505                 if (packet.GetProto() == UDP_PROTO)
 506                     portMatchU = (packet.GetDstPort() >= ln->port1) && (packet.GetDstPort() <= ln->port2);
 507                 break;
 508
 509             default:
 510                 printfd(__FILE__, "Error! Incorrect rule!\n");
 511                 break;
 512             }
 513
 514         addrMatchU = (packet.GetDstIP() & ln->mask) == ln->ip;
 515
 516         if (!foundU && addrMatchU && portMatchU)
 517             {
 518             foundU = true;
 519             *dirU = ln->dir;
 520             //printfd(__FILE__, "Up rule ok! %d\n", ln->dir);
 521             }
 522
 523         } //if (!foundU)
 524
 525     if (!foundD)
 526         {
 527         portMatchD = false;
 528
 529         switch (ln->proto)
 530             {
 531             case all:
 532                 portMatchD = true;
 533                 break;
 534
 535             case icmp:
 536                 portMatchD = (packet.GetProto() == ICMP_RPOTO);
 537                 break;
 538
 539             case tcp_udp:
 540                 if (packet.GetProto() == TCP_PROTO || packet.GetProto() == UDP_PROTO)
 541                     portMatchD = (packet.GetSrcPort() >= ln->port1) && (packet.GetSrcPort() <= ln->port2);
 542                 break;
 543
 544             case tcp:
 545                 if (packet.GetProto() == TCP_PROTO)
 546                     portMatchD = (packet.GetSrcPort() >= ln->port1) && (packet.GetSrcPort() <= ln->port2);
 547                 break;
 548
 549             case udp:
 550                 if (packet.GetProto() == UDP_PROTO)
 551                     portMatchD = (packet.GetSrcPort() >= ln->port1) && (packet.GetSrcPort() <= ln->port2);
 552                 break;
 553
 554             default:
 555                 printfd(__FILE__, "Error! Incorrect rule!\n");
 556                 break;
 557             }
 558
 559         addrMatchD = (packet.GetSrcIP() & ln->mask) == ln->ip;
 560
 561         if (!foundD && addrMatchD && portMatchD)
 562             {
 563             foundD = true;
 564             *dirD = ln->dir;
 565             //printfd(__FILE__, "Down rule ok! %d\n", ln->dir);
 566             }
 567         } //if (!foundD)
 568
 569     ++ln;
 570     }   //while (ln != rules.end())
 571
 572 if (!foundU)
 573     *dirU = DIR_NUM;
 574
 575 if (!foundD)
 576     *dirD = DIR_NUM;
 577 }
 578 //-----------------------------------------------------------------------------
 579 bool TraffCounterImpl::ReadRules(bool test)
 580 {
 581 //printfd(__FILE__, "TraffCounter::ReadRules()\n");
 582
 583 Rule rul;
 584 FILE * f;
 585 char str[1024];
 586 char tp[100];   // protocol
 587 char ta[100];   // address
 588 char td[100];   // target direction
 589 int r;
 590 int lineNumber = 0;
 591 f = fopen(rulesFileName.c_str(), "rt");
 592
 593 if (!f)
 594     {
 595     printfd(__FILE__, "TraffCounterImpl::ReadRules() - File '%s' cannot be opened.\n", rulesFileName.c_str());
 596     WriteServLog("File '%s' cannot be oppened.", rulesFileName.c_str());
 597     return true;
 598     }
 599
 600 while (fgets(str, 1023, f))
 601     {
 602     lineNumber++;
 603     if (str[strspn(str," \t")] == '#' || str[strspn(str," \t")] == '\n')
 604         {
 605         continue;
 606         }
 607
 608     r = sscanf(str,"%99s %99s %99s", tp, ta, td);
 609     if (r != 3)
 610         {
 611         printfd(__FILE__, "TraffCounterImpl::ReadRules() - Error in file '%s' at line %d. There must be 3 parameters.\n", rulesFileName.c_str(), lineNumber);
 612         WriteServLog("Error in file '%s' at line %d. There must be 3 parameters.", rulesFileName.c_str(), lineNumber);
 613         fclose(f);
 614         return true;
 615         }
 616
 617     rul.proto = 0xff;
 618     rul.dir = 0xff;
 619
 620     for (uint8_t i = 0; i < PROTOMAX; i++)
 621         {
 622         if (strcasecmp(tp, protoName[i]) == 0)
 623             rul.proto = i;
 624         }
 625
 626     for (uint32_t i = 0; i < DIR_NUM + 1; i++)
 627         {
 628         if (td == dirName[i])
 629             rul.dir = i;
 630         }
 631
 632     if (rul.dir == 0xff || rul.proto == 0xff)
 633         {
 634         printfd(__FILE__, "TraffCounterImpl::ReadRules() - Error in file '%s' at line %d.\n", rulesFileName.c_str(), lineNumber);
 635         WriteServLog("Error in file %s. Line %d.",
 636                      rulesFileName.c_str(), lineNumber);
 637         fclose(f);
 638         return true;
 639         }
 640
 641     if (ParseAddress(ta, &rul) != 0)
 642         {
 643         printfd(__FILE__, "TraffCounterImpl::ReadRules() - Error in file '%s' at line %d. Error in adress.\n", rulesFileName.c_str(), lineNumber);
 644         WriteServLog("Error in file %s. Error in adress. Line %d.",
 645                      rulesFileName.c_str(), lineNumber);
 646         fclose(f);
 647         return true;
 648         }
 649     if (!test)
 650         rules.push_back(rul);
 651     }
 652
 653 fclose(f);
 654
 655 // Adding lastest rule: ALL 0.0.0.0/0 NULL
 656 rul.dir = DIR_NUM; //NULL
 657 rul.ip = 0;  //0.0.0.0
 658 rul.mask = 0;
 659 rul.port1 = 0;
 660 rul.port2 = 65535;
 661 rul.proto = all;
 662
 663 if (!test)
 664     rules.push_back(rul);
 665
 666 return false;
 667 }
 668 //-----------------------------------------------------------------------------
 669 int TraffCounterImpl::Reload()
 670 {
 671 std::lock_guard<std::mutex> lock(m_mutex);
 672
 673 if (ReadRules(true))
 674     {
 675     printfd(__FILE__, "TraffCounterImpl::Reload() - Failed to reload rules.\n");
 676     WriteServLog("TraffCounter: Cannot reload rules. Errors found.");
 677     return -1;
 678     }
 679
 680 FreeRules();
 681 ReadRules();
 682 printfd(__FILE__, "TraffCounterImpl::Reload() -  Reloaded rules successfully.\n");
 683 WriteServLog("TraffCounter: Reloaded rules successfully.");
 684 return 0;
 685 }
 686 //-----------------------------------------------------------------------------
 687 bool TraffCounterImpl::ParseAddress(const char * ta, Rule * rule) const
 688 {
 689 char addr[50], mask[20], port1[20], port2[20], ports[40];
 690
 691 size_t len = strlen(ta);
 692 char n = 0;
 693 size_t i, p;
 694 memset(addr, 0, sizeof(addr));
 695 for (i = 0; i < len; i++)
 696     {
 697     if (ta[i] == '/' || ta[i] == ':')
 698         {
 699         addr[i] = 0;
 700         n = ta[i];
 701         break;
 702         }
 703     addr[i] = ta[i];
 704     n = 0;
 705     }
 706 addr[i + 1] = 0;
 707 p = i + 1;
 708
 709 if (n == '/')
 710     {
 711     // mask
 712     for (; i < len; i++)
 713         {
 714         if (ta[i] == ':')
 715             {
 716             mask[i - p] = 0;
 717             n = ':';
 718             break;
 719             }
 720         mask[i - p] = ta[i];
 721         }
 722     mask[i - p] = 0;
 723     }
 724 else
 725     {
 726     strcpy(mask, "32");
 727     }
 728
 729 p = i + 1;
 730 i++;
 731
 732 if (n == ':')
 733     {
 734     // port
 735     if (!(rule->proto == tcp || rule->proto == udp || rule->proto == tcp_udp))
 736         {
 737         printfd(__FILE__, "TraffCounterImpl::ParseAddress() - No ports specified for this protocol.\n");
 738         WriteServLog("No ports specified for this protocol.");
 739         return true;
 740         }
 741
 742     for (; i < len; i++)
 743         ports[i - p] = ta[i];
 744
 745     ports[i - p] = 0;
 746     }
 747 else
 748     {
 749     strcpy(ports, "0-65535");
 750     }
 751
 752 char *sss;
 753 char pts[100];
 754 strcpy(pts, ports);
 755
 756 if ((sss = strchr(ports, '-')) != NULL)
 757     {
 758     strncpy(port1, ports, int(sss-ports));
 759     port1[int(sss - ports)] = 0;
 760     strcpy(port2, sss + 1);
 761     }
 762 else
 763     {
 764     strcpy(port1, ports);
 765     strcpy(port2, ports);
 766     }
 767
 768 // Convert strings to mask, ports and IP
 769 uint16_t prt1, prt2, msk;
 770 struct in_addr ipaddr;
 771 char *res;
 772
 773 msk = static_cast<uint16_t>(strtol(mask, &res, 10));
 774 if (*res != 0)
 775     return true;
 776
 777 prt1 = static_cast<uint16_t>(strtol(port1, &res, 10));
 778 if (*res != 0)
 779     return true;
 780
 781 prt2 = static_cast<uint16_t>(strtol(port2, &res, 10));
 782 if (*res != 0)
 783     return true;
 784
 785 int r = inet_aton(addr, &ipaddr);
 786 if (r == 0)
 787     return true;
 788
 789 rule->ip = ipaddr.s_addr;
 790 rule->mask = CalcMask(msk);
 791
 792 if ((ipaddr.s_addr & rule->mask) != ipaddr.s_addr)
 793     {
 794     printfd(__FILE__, "TraffCounterImpl::ParseAddress() - Address does'n match mask.\n");
 795     WriteServLog("Address does'n match mask.");
 796     return true;
 797     }
 798
 799 rule->port1 = prt1;
 800 rule->port2 = prt2;
 801
 802 return false;
 803 }
 804 //-----------------------------------------------------------------------------
 805 uint32_t TraffCounterImpl::CalcMask(uint32_t msk) const
 806 {
 807 if (msk >= 32) return 0xFFffFFff;
 808 if (msk == 0) return 0;
 809 return htonl(0xFFffFFff << (32 - msk));
 810 }
 811 //---------------------------------------------------------------------------
 812 void TraffCounterImpl::FreeRules()
 813 {
 814 rules.clear();
 815 }
 816 //-----------------------------------------------------------------------------
 817 void TraffCounterImpl::SetMonitorDir(const std::string & dir)
 818 {
 819 monitorDir = dir;
 820 monitoring = !monitorDir.empty();
 821 }
 822 //-----------------------------------------------------------------------------
 823 void TraffCounterImpl::beforeIPChange(uint32_t oldVal)
 824 {
 825     // User changes his address. Remove old IP
 826     if (!oldVal)
 827         return;
 828
 829     AsyncPoolST::enqueue([this, oldVal](){ DelUser(oldVal); });
 830 }
 831 //-----------------------------------------------------------------------------
 832 void TraffCounterImpl::afterIPChange(UserImpl* user, uint32_t newVal)
 833 {
 834     // User changes his address. Add new IP
 835     if (!newVal)
 836         return;
 837
 838     AsyncPoolST::enqueue([this, user](){ AddUser(user); });
 839 }
 840 //-----------------------------------------------------------------------------