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