/* * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* * Author : Boris Mikhailenko */ #pragma once #include "stg/traffcounter.h" #include "stg/logger.h" #include "stg/raw_ip_packet.h" #include "stg/noncopyable.h" #include "stg/notifer.h" #include "actions.h" #include "eventloop.h" #include "user_impl.h" #include #include #include #include #include #include #define PROTOMAX (5) namespace STG { class UsersImpl; //----------------------------------------------------------------------------- struct Rule { uint32_t ip; // IP uint32_t mask; // Network mask uint16_t port1; // Min port uint16_t port2; // Max port uint8_t proto; // Protocol uint32_t dir; // Direction }; //----------------------------------------------------------------------------- struct PacketExtraData { PacketExtraData() : flushTime(0), updateTime(0), userU(NULL), userUPresent(false), userD(NULL), userDPresent(false), dirU(DIR_NUM), dirD(DIR_NUM), lenU(0), lenD(0) {} time_t flushTime; // Last flush time time_t updateTime; // Last update time UserImpl * userU; // Uploader bool userUPresent; // Uploader is registered user UserImpl * userD; // Downloader bool userDPresent; // Downloader is registered user int dirU; // Upload direction int dirD; // Download direction uint32_t lenU; // Upload length uint32_t lenD; // Download length }; //----------------------------------------------------------------------------- class TraffCounterImpl; //----------------------------------------------------------------------------- class TRF_IP_BEFORE: public PropertyNotifierBase { public: TRF_IP_BEFORE(TraffCounterImpl & t, UserImpl * u) : PropertyNotifierBase(), traffCnt(t), user(u) {} TRF_IP_BEFORE(const TRF_IP_BEFORE & rvalue) : PropertyNotifierBase(), traffCnt(rvalue.traffCnt), user(rvalue.user) {} void Notify(const uint32_t & oldValue, const uint32_t & newValue); void SetUser(UserImpl * u) { user = u; } UserImpl * GetUser() const { return user; } private: TRF_IP_BEFORE & operator=(const TRF_IP_BEFORE & rvalue); TraffCounterImpl & traffCnt; UserImpl * user; }; //----------------------------------------------------------------------------- class TRF_IP_AFTER: public PropertyNotifierBase { public: TRF_IP_AFTER(TraffCounterImpl & t, UserImpl * u) : PropertyNotifierBase(), traffCnt(t), user(u) {} TRF_IP_AFTER(const TRF_IP_AFTER & rvalue) : PropertyNotifierBase(), traffCnt(rvalue.traffCnt), user(rvalue.user) {} void Notify(const uint32_t & oldValue, const uint32_t & newValue); void SetUser(UserImpl * u) { user = u; } UserImpl * GetUser() const { return user; } private: TRF_IP_AFTER & operator=(const TRF_IP_AFTER & rvalue); TraffCounterImpl & traffCnt; UserImpl * user; }; using UserImplPtr = UserImpl*; //----------------------------------------------------------------------------- class ADD_USER_NONIFIER: public NotifierBase { public: explicit ADD_USER_NONIFIER(TraffCounterImpl & t) : NotifierBase(), traffCnt(t) {} virtual ~ADD_USER_NONIFIER() {} void Notify(const UserImplPtr & user); private: ADD_USER_NONIFIER(const ADD_USER_NONIFIER & rvalue); ADD_USER_NONIFIER & operator=(const ADD_USER_NONIFIER & rvalue); TraffCounterImpl & traffCnt; }; //----------------------------------------------------------------------------- class DEL_USER_NONIFIER: public NotifierBase { public: explicit DEL_USER_NONIFIER(TraffCounterImpl & t) : NotifierBase(), traffCnt(t) {} virtual ~DEL_USER_NONIFIER() {} void Notify(const UserImplPtr & user); private: DEL_USER_NONIFIER(const DEL_USER_NONIFIER & rvalue); DEL_USER_NONIFIER & operator=(const DEL_USER_NONIFIER & rvalue); TraffCounterImpl & traffCnt; }; //----------------------------------------------------------------------------- class TraffCounterImpl : public TraffCounter { friend class ADD_USER_NONIFIER; friend class DEL_USER_NONIFIER; friend class TRF_IP_BEFORE; friend class TRF_IP_AFTER; public: TraffCounterImpl(UsersImpl * users, const std::string & rulesFileName); ~TraffCounterImpl(); int Reload(); int Start(); int Stop(); void process(const RawPacket & rawPacket) override; void SetMonitorDir(const std::string & monitorDir); size_t rulesCount() const override { return rules.size(); } private: bool ParseAddress(const char * ta, Rule * rule) const; uint32_t CalcMask(uint32_t msk) const; void FreeRules(); bool ReadRules(bool test = false); static void * Run(void * data); void DeterminateDir(const RawPacket & packet, int * dirU, // Direction for upload int * dirD) const; // Direction for download void FlushAndRemove(); void AddUser(UserImpl * user); void DelUser(uint32_t uip); void SetUserNotifiers(UserImpl * user); void UnSetUserNotifiers(UserImpl * user); typedef std::list::iterator rule_iter; std::list rules; typedef std::map Packets; typedef Packets::iterator pp_iter; typedef std::multimap Index; typedef Index::iterator ip2p_iter; typedef Index::const_iterator ip2p_citer; Packets packets; // Packets tree Index ip2packets; // IP-to-Packet index std::string dirName[DIR_NUM + 1]; Logger & WriteServLog; std::string rulesFileName; std::string monitorDir; bool monitoring; time_t touchTimeP; UsersImpl * users; bool running; bool stopped; pthread_mutex_t mutex; pthread_t thread; std::list ipBeforeNotifiers; std::list ipAfterNotifiers; ADD_USER_NONIFIER addUserNotifier; DEL_USER_NONIFIER delUserNotifier; }; //----------------------------------------------------------------------------- inline void TRF_IP_BEFORE::Notify(const uint32_t & oldValue, const uint32_t &) { // User changes his address. Remove old IP if (!oldValue) return; EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TraffCounterImpl::DelUser, oldValue); } //----------------------------------------------------------------------------- inline void TRF_IP_AFTER::Notify(const uint32_t &, const uint32_t & newValue) { // User changes his address. Add new IP if (!newValue) return; EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TraffCounterImpl::AddUser, user); } //----------------------------------------------------------------------------- inline void ADD_USER_NONIFIER::Notify(const UserImplPtr & user) { EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TraffCounterImpl::SetUserNotifiers, user); } //----------------------------------------------------------------------------- inline void DEL_USER_NONIFIER::Notify(const UserImplPtr & user) { EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TraffCounterImpl::UnSetUserNotifiers, user); EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TraffCounterImpl::DelUser, user->GetCurrIP()); } //----------------------------------------------------------------------------- }