projects/stargazer/traffcounter_impl.h

   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  *    Author : Boris Mikhailenko <stg34@stargazer.dp.ua>
  19  */
  20
  21  /*
  22  $Revision: 1.23 $
  23  $Date: 2010/04/22 12:57:46 $
  24  $Author: faust $
  25  */
  26
  27
  28 #ifndef TRAFFCOUNTER_IMPL_H
  29 #define TRAFFCOUNTER_IMPL_H
  30
  31 #include <pthread.h>
  32
  33 #include <ctime>
  34 #include <list>
  35 #include <map>
  36 #include <string>
  37
  38 #include "traffcounter.h"
  39 #include "os_int.h"
  40 #include "stg_logger.h"
  41 #include "raw_ip_packet.h"
  42 #include "users.h"
  43 #include "actions.h"
  44 #include "noncopyable.h"
  45 #include "eventloop.h"
  46
  47 #define PROTOMAX    (5)
  48
  49 class TARIFFS;
  50
  51 //-----------------------------------------------------------------------------
  52 struct RULE {
  53 uint32_t    ip;             // IP
  54 uint32_t    mask;           // Network mask
  55 uint16_t    port1;          // Min port
  56 uint16_t    port2;          // Max port
  57 uint8_t     proto;          // Protocol
  58 uint32_t    dir;            // Direction
  59 };
  60 //-----------------------------------------------------------------------------
  61 struct PACKET_EXTRA_DATA {
  62 PACKET_EXTRA_DATA()
  63     : flushTime(0),
  64       updateTime(0),
  65       userU(),
  66       userUPresent(false),
  67       userD(),
  68       userDPresent(false),
  69       dirU(DIR_NUM),
  70       dirD(DIR_NUM),
  71       lenU(0),
  72       lenD(0)
  73 {}
  74
  75 PACKET_EXTRA_DATA(const PACKET_EXTRA_DATA & pp)
  76     : flushTime(pp.flushTime),
  77       updateTime(pp.updateTime),
  78       userU(pp.userU),
  79       userUPresent(pp.userUPresent),
  80       userD(pp.userD),
  81       userDPresent(pp.userDPresent),
  82       dirU(pp.dirU),
  83       dirD(pp.dirD),
  84       lenU(pp.lenU),
  85       lenD(pp.lenD)
  86 {}
  87
  88 time_t      flushTime;          // Last flush time
  89 time_t      updateTime;         // Last update time
  90 USER_PTR    userU;              // Uploader
  91 bool        userUPresent;       // Uploader is registered user
  92 USER_PTR    userD;              // Downloader
  93 bool        userDPresent;       // Downloader is registered user
  94 int         dirU;               // Upload direction
  95 int         dirD;               // Download direction
  96 uint32_t    lenU;               // Upload length
  97 uint32_t    lenD;               // Download length
  98 };
  99 //-----------------------------------------------------------------------------
 100 class TRAFFCOUNTER_IMPL;
 101 //-----------------------------------------------------------------------------
 102 class TRF_IP_BEFORE: public PROPERTY_NOTIFIER_BASE<uint32_t> {
 103 public:
 104                     TRF_IP_BEFORE(TRAFFCOUNTER_IMPL & t, USER_PTR u)
 105                         : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 106                           traffCnt(t),
 107                           user(u)
 108                     {}
 109     void            Notify(const uint32_t & oldValue, const uint32_t & newValue);
 110     void            SetUser(USER_PTR u) { user = u; }
 111     USER_PTR        GetUser() const { return user; }
 112
 113 private:
 114     TRAFFCOUNTER_IMPL & traffCnt;
 115     USER_PTR            user;
 116 };
 117 //-----------------------------------------------------------------------------
 118 class TRF_IP_AFTER: public PROPERTY_NOTIFIER_BASE<uint32_t> {
 119 public:
 120                     TRF_IP_AFTER(TRAFFCOUNTER_IMPL & t, USER_PTR u)
 121                         : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 122                           traffCnt(t),
 123                           user(u)
 124                     {}
 125     void            Notify(const uint32_t & oldValue, const uint32_t & newValue);
 126     void            SetUser(USER_PTR u) { user = u; }
 127     USER_PTR        GetUser() const { return user; }
 128 private:
 129     TRAFFCOUNTER_IMPL & traffCnt;
 130     USER_PTR            user;
 131 };
 132 //-----------------------------------------------------------------------------
 133 class ADD_USER_NONIFIER: public NOTIFIER_BASE<USER_PTR> {
 134 public:
 135             ADD_USER_NONIFIER(TRAFFCOUNTER_IMPL & t) :
 136                 NOTIFIER_BASE<USER_PTR>(),
 137                 traffCnt(t)
 138             {}
 139     virtual ~ADD_USER_NONIFIER() {}
 140     void    Notify(const USER_PTR & user);
 141 private:
 142     TRAFFCOUNTER_IMPL & traffCnt;
 143 };
 144 //-----------------------------------------------------------------------------
 145 class DEL_USER_NONIFIER: public NOTIFIER_BASE<USER_PTR> {
 146 public:
 147             DEL_USER_NONIFIER(TRAFFCOUNTER_IMPL & t) :
 148                 NOTIFIER_BASE<USER_PTR>(),
 149                 traffCnt(t)
 150             {}
 151     virtual ~DEL_USER_NONIFIER() {}
 152     void    Notify(const USER_PTR & user);
 153 private:
 154     TRAFFCOUNTER_IMPL & traffCnt;
 155 };
 156 //-----------------------------------------------------------------------------
 157 class TRAFFCOUNTER_IMPL : public TRAFFCOUNTER, private NONCOPYABLE {
 158 friend class ADD_USER_NONIFIER;
 159 friend class DEL_USER_NONIFIER;
 160 friend class TRF_IP_BEFORE;
 161 friend class TRF_IP_AFTER;
 162 public:
 163     TRAFFCOUNTER_IMPL(USERS * users, const TARIFFS * tariffs, const std::string & rulesFileName);
 164     ~TRAFFCOUNTER_IMPL();
 165
 166     void        SetRulesFile(const std::string & rulesFileName);
 167
 168     int         Reload();
 169     int         Start();
 170     int         Stop();
 171
 172     void        Process(const RAW_PACKET & rawPacket);
 173     void        SetMonitorDir(const std::string & monitorDir);
 174
 175 private:
 176     bool        ParseAddress(const char * ta, RULE * rule) const;
 177     uint32_t    CalcMask(uint32_t msk) const;
 178     void        FreeRules();
 179     void        PrintRule(RULE rule) const;
 180     bool        ReadRules(bool test = false);
 181
 182     static void * Run(void * data);
 183
 184     void        DeterminateDir(const RAW_PACKET & packet,
 185                                int * dirU, // Direction for upload
 186                                int * dirD) const; // Direction for download
 187
 188     void        FlushAndRemove();
 189
 190     void        AddUser(USER_PTR user);
 191     void        DelUser(uint32_t uip);
 192     void        SetUserNotifiers(USER_PTR user);
 193     void        UnSetUserNotifiers(USER_PTR user);
 194
 195     typedef std::list<RULE>::iterator rule_iter;
 196     typedef std::map<RAW_PACKET, PACKET_EXTRA_DATA>::iterator pp_iter;
 197     typedef std::multimap<uint32_t, pp_iter>::iterator ip2p_iter;
 198     typedef std::multimap<uint32_t, pp_iter>::const_iterator ip2p_citer;
 199
 200     std::list<RULE>          rules;
 201
 202     std::map<RAW_PACKET, PACKET_EXTRA_DATA> packets; // Packets tree
 203
 204     std::multimap<uint32_t, pp_iter> ip2packets; // IP-to-Packet index
 205
 206     std::string              dirName[DIR_NUM + 1];
 207
 208     STG_LOGGER &             WriteServLog;
 209     std::string              rulesFileName;
 210
 211     std::string              monitorDir;
 212     bool                     monitoring;
 213
 214     USERS *                  users;
 215
 216     bool                     running;
 217     bool                     stopped;
 218     pthread_mutex_t          mutex;
 219     pthread_t                thread;
 220
 221     std::list<TRF_IP_BEFORE> ipBeforeNotifiers;
 222     std::list<TRF_IP_AFTER>  ipAfterNotifiers;
 223
 224     ADD_USER_NONIFIER        addUserNotifier;
 225     DEL_USER_NONIFIER        delUserNotifier;
 226 };
 227 //-----------------------------------------------------------------------------
 228 inline
 229 void TRF_IP_BEFORE::Notify(const uint32_t & oldValue, const uint32_t &)
 230 {
 231 // User changes his address. Remove old IP
 232 if (!oldValue)
 233     return;
 234
 235 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::DelUser, oldValue);
 236 }
 237 //-----------------------------------------------------------------------------
 238 inline
 239 void TRF_IP_AFTER::Notify(const uint32_t &, const uint32_t & newValue)
 240 {
 241 // User changes his address. Add new IP
 242 if (!newValue)
 243     return;
 244
 245 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::AddUser, user);
 246 }
 247 //-----------------------------------------------------------------------------
 248 inline
 249 void ADD_USER_NONIFIER::Notify(const USER_PTR & user)
 250 {
 251 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::SetUserNotifiers, user);
 252 }
 253 //-----------------------------------------------------------------------------
 254 inline
 255 void DEL_USER_NONIFIER::Notify(const USER_PTR & user)
 256 {
 257 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::UnSetUserNotifiers, user);
 258 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::DelUser, user->GetCurrIP());
 259 }
 260 //-----------------------------------------------------------------------------
 261 #endif //TRAFFCOUNTER_H