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 "stg/traffcounter.h"
  39 #include "stg/os_int.h"
  40 #include "stg/logger.h"
  41 #include "stg/raw_ip_packet.h"
  42 #include "stg/noncopyable.h"
  43 #include "stg/notifer.h"
  44 #include "actions.h"
  45 #include "eventloop.h"
  46 #include "user_impl.h"
  47
  48 #define PROTOMAX    (5)
  49
  50 class USERS_IMPL;
  51
  52 //-----------------------------------------------------------------------------
  53 struct RULE {
  54 uint32_t    ip;             // IP
  55 uint32_t    mask;           // Network mask
  56 uint16_t    port1;          // Min port
  57 uint16_t    port2;          // Max port
  58 uint8_t     proto;          // Protocol
  59 uint32_t    dir;            // Direction
  60 };
  61 //-----------------------------------------------------------------------------
  62 struct PACKET_EXTRA_DATA {
  63 PACKET_EXTRA_DATA()
  64     : flushTime(0),
  65       updateTime(0),
  66       userU(NULL),
  67       userUPresent(false),
  68       userD(NULL),
  69       userDPresent(false),
  70       dirU(DIR_NUM),
  71       dirD(DIR_NUM),
  72       lenU(0),
  73       lenD(0)
  74 {}
  75
  76 PACKET_EXTRA_DATA(const PACKET_EXTRA_DATA & pp)
  77     : flushTime(pp.flushTime),
  78       updateTime(pp.updateTime),
  79       userU(pp.userU),
  80       userUPresent(pp.userUPresent),
  81       userD(pp.userD),
  82       userDPresent(pp.userDPresent),
  83       dirU(pp.dirU),
  84       dirD(pp.dirD),
  85       lenU(pp.lenU),
  86       lenD(pp.lenD)
  87 {}
  88
  89 time_t      flushTime;          // Last flush time
  90 time_t      updateTime;         // Last update time
  91 USER_IMPL * userU;              // Uploader
  92 bool        userUPresent;       // Uploader is registered user
  93 USER_IMPL * userD;              // Downloader
  94 bool        userDPresent;       // Downloader is registered user
  95 int         dirU;               // Upload direction
  96 int         dirD;               // Download direction
  97 uint32_t    lenU;               // Upload length
  98 uint32_t    lenD;               // Download length
  99 };
 100 //-----------------------------------------------------------------------------
 101 class TRAFFCOUNTER_IMPL;
 102 //-----------------------------------------------------------------------------
 103 class TRF_IP_BEFORE: public PROPERTY_NOTIFIER_BASE<uint32_t> {
 104 public:
 105                     TRF_IP_BEFORE(TRAFFCOUNTER_IMPL & t, USER_IMPL * u)
 106                         : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 107                           traffCnt(t),
 108                           user(u)
 109                     {}
 110     void            Notify(const uint32_t & oldValue, const uint32_t & newValue);
 111     void            SetUser(USER_IMPL * u) { user = u; }
 112     USER_IMPL *     GetUser() const { return user; }
 113
 114 private:
 115     TRAFFCOUNTER_IMPL & traffCnt;
 116     USER_IMPL *         user;
 117 };
 118 //-----------------------------------------------------------------------------
 119 class TRF_IP_AFTER: public PROPERTY_NOTIFIER_BASE<uint32_t> {
 120 public:
 121                     TRF_IP_AFTER(TRAFFCOUNTER_IMPL & t, USER_IMPL * u)
 122                         : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 123                           traffCnt(t),
 124                           user(u)
 125                     {}
 126     void            Notify(const uint32_t & oldValue, const uint32_t & newValue);
 127     void            SetUser(USER_IMPL * u) { user = u; }
 128     USER_IMPL *     GetUser() const { return user; }
 129 private:
 130     TRAFFCOUNTER_IMPL & traffCnt;
 131     USER_IMPL *         user;
 132 };
 133 //-----------------------------------------------------------------------------
 134 class ADD_USER_NONIFIER: public NOTIFIER_BASE<USER_IMPL_PTR> {
 135 public:
 136             ADD_USER_NONIFIER(TRAFFCOUNTER_IMPL & t) :
 137                 NOTIFIER_BASE<USER_IMPL_PTR>(),
 138                 traffCnt(t)
 139             {}
 140     virtual ~ADD_USER_NONIFIER() {}
 141     void    Notify(const USER_IMPL_PTR & user);
 142 private:
 143     TRAFFCOUNTER_IMPL & traffCnt;
 144 };
 145 //-----------------------------------------------------------------------------
 146 class DEL_USER_NONIFIER: public NOTIFIER_BASE<USER_IMPL_PTR> {
 147 public:
 148             DEL_USER_NONIFIER(TRAFFCOUNTER_IMPL & t) :
 149                 NOTIFIER_BASE<USER_IMPL_PTR>(),
 150                 traffCnt(t)
 151             {}
 152     virtual ~DEL_USER_NONIFIER() {}
 153     void    Notify(const USER_IMPL_PTR & user);
 154 private:
 155     TRAFFCOUNTER_IMPL & traffCnt;
 156 };
 157 //-----------------------------------------------------------------------------
 158 class TRAFFCOUNTER_IMPL : public TRAFFCOUNTER, private NONCOPYABLE {
 159 friend class ADD_USER_NONIFIER;
 160 friend class DEL_USER_NONIFIER;
 161 friend class TRF_IP_BEFORE;
 162 friend class TRF_IP_AFTER;
 163 public:
 164     TRAFFCOUNTER_IMPL(USERS_IMPL * users, const std::string & rulesFileName);
 165     ~TRAFFCOUNTER_IMPL();
 166
 167     void        SetRulesFile(const std::string & rulesFileName);
 168
 169     int         Reload();
 170     int         Start();
 171     int         Stop();
 172
 173     void        Process(const RAW_PACKET & rawPacket);
 174     void        SetMonitorDir(const std::string & monitorDir);
 175
 176     size_t      RulesCount() const { return rules.size(); }
 177
 178 private:
 179     bool        ParseAddress(const char * ta, RULE * rule) const;
 180     uint32_t    CalcMask(uint32_t msk) const;
 181     void        FreeRules();
 182     void        PrintRule(RULE rule) const;
 183     bool        ReadRules(bool test = false);
 184
 185     static void * Run(void * data);
 186
 187     void        DeterminateDir(const RAW_PACKET & packet,
 188                                int * dirU, // Direction for upload
 189                                int * dirD) const; // Direction for download
 190
 191     void        FlushAndRemove();
 192
 193     void        AddUser(USER_IMPL * user);
 194     void        DelUser(uint32_t uip);
 195     void        SetUserNotifiers(USER_IMPL * user);
 196     void        UnSetUserNotifiers(USER_IMPL * user);
 197
 198     typedef std::list<RULE>::iterator rule_iter;
 199     typedef std::map<RAW_PACKET, PACKET_EXTRA_DATA>::iterator pp_iter;
 200     typedef std::multimap<uint32_t, pp_iter>::iterator ip2p_iter;
 201     typedef std::multimap<uint32_t, pp_iter>::const_iterator ip2p_citer;
 202
 203     std::list<RULE>          rules;
 204
 205     std::map<RAW_PACKET, PACKET_EXTRA_DATA> packets; // Packets tree
 206
 207     std::multimap<uint32_t, pp_iter> ip2packets; // IP-to-Packet index
 208
 209     std::string              dirName[DIR_NUM + 1];
 210
 211     STG_LOGGER &             WriteServLog;
 212     std::string              rulesFileName;
 213
 214     std::string              monitorDir;
 215     bool                     monitoring;
 216
 217     USERS_IMPL *             users;
 218
 219     bool                     running;
 220     bool                     stopped;
 221     pthread_mutex_t          mutex;
 222     pthread_t                thread;
 223
 224     std::list<TRF_IP_BEFORE> ipBeforeNotifiers;
 225     std::list<TRF_IP_AFTER>  ipAfterNotifiers;
 226
 227     ADD_USER_NONIFIER        addUserNotifier;
 228     DEL_USER_NONIFIER        delUserNotifier;
 229 };
 230 //-----------------------------------------------------------------------------
 231 inline
 232 void TRF_IP_BEFORE::Notify(const uint32_t & oldValue, const uint32_t &)
 233 {
 234 // User changes his address. Remove old IP
 235 if (!oldValue)
 236     return;
 237
 238 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::DelUser, oldValue);
 239 }
 240 //-----------------------------------------------------------------------------
 241 inline
 242 void TRF_IP_AFTER::Notify(const uint32_t &, const uint32_t & newValue)
 243 {
 244 // User changes his address. Add new IP
 245 if (!newValue)
 246     return;
 247
 248 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::AddUser, user);
 249 }
 250 //-----------------------------------------------------------------------------
 251 inline
 252 void ADD_USER_NONIFIER::Notify(const USER_IMPL_PTR & user)
 253 {
 254 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::SetUserNotifiers, user);
 255 }
 256 //-----------------------------------------------------------------------------
 257 inline
 258 void DEL_USER_NONIFIER::Notify(const USER_IMPL_PTR & user)
 259 {
 260 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::UnSetUserNotifiers, user);
 261 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::DelUser, user->GetCurrIP());
 262 }
 263 //-----------------------------------------------------------------------------
 264 #endif //TRAFFCOUNTER_H