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