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 "stg/traffcounter.h"
  32 #include "stg/os_int.h"
  33 #include "stg/logger.h"
  34 #include "stg/raw_ip_packet.h"
  35 #include "stg/noncopyable.h"
  36 #include "stg/notifer.h"
  37 #include "actions.h"
  38 #include "eventloop.h"
  39 #include "user_impl.h"
  40
  41 #include <ctime>
  42 #include <list>
  43 #include <map>
  44 #include <string>
  45
  46 #include <pthread.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 time_t      flushTime;          // Last flush time
  77 time_t      updateTime;         // Last update time
  78 USER_IMPL * userU;              // Uploader
  79 bool        userUPresent;       // Uploader is registered user
  80 USER_IMPL * userD;              // Downloader
  81 bool        userDPresent;       // Downloader is registered user
  82 int         dirU;               // Upload direction
  83 int         dirD;               // Download direction
  84 uint32_t    lenU;               // Upload length
  85 uint32_t    lenD;               // Download length
  86 };
  87 //-----------------------------------------------------------------------------
  88 class TRAFFCOUNTER_IMPL;
  89 //-----------------------------------------------------------------------------
  90 class TRF_IP_BEFORE: public PROPERTY_NOTIFIER_BASE<uint32_t> {
  91 public:
  92                 TRF_IP_BEFORE(TRAFFCOUNTER_IMPL & t, USER_IMPL * u)
  93                     : PROPERTY_NOTIFIER_BASE<uint32_t>(),
  94                       traffCnt(t),
  95                       user(u)
  96                 {}
  97                 TRF_IP_BEFORE(const TRF_IP_BEFORE & rvalue)
  98                     : PROPERTY_NOTIFIER_BASE<uint32_t>(),
  99                       traffCnt(rvalue.traffCnt),
 100                       user(rvalue.user)
 101                 {}
 102     void        Notify(const uint32_t & oldValue, const uint32_t & newValue);
 103     void        SetUser(USER_IMPL * u) { user = u; }
 104     USER_IMPL * GetUser() const { return user; }
 105
 106 private:
 107     TRF_IP_BEFORE & operator=(const TRF_IP_BEFORE & rvalue);
 108
 109     TRAFFCOUNTER_IMPL & traffCnt;
 110     USER_IMPL * user;
 111 };
 112 //-----------------------------------------------------------------------------
 113 class TRF_IP_AFTER: public PROPERTY_NOTIFIER_BASE<uint32_t> {
 114 public:
 115                 TRF_IP_AFTER(TRAFFCOUNTER_IMPL & t, USER_IMPL * u)
 116                     : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 117                       traffCnt(t),
 118                       user(u)
 119                 {}
 120                 TRF_IP_AFTER(const TRF_IP_AFTER & rvalue)
 121                     : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 122                       traffCnt(rvalue.traffCnt),
 123                       user(rvalue.user)
 124                 {}
 125     void        Notify(const uint32_t & oldValue, const uint32_t & newValue);
 126     void        SetUser(USER_IMPL * u) { user = u; }
 127     USER_IMPL * GetUser() const { return user; }
 128 private:
 129     TRF_IP_AFTER & operator=(const TRF_IP_AFTER & rvalue);
 130
 131     TRAFFCOUNTER_IMPL & traffCnt;
 132     USER_IMPL * user;
 133 };
 134 //-----------------------------------------------------------------------------
 135 class ADD_USER_NONIFIER: public NOTIFIER_BASE<USER_IMPL_PTR> {
 136 public:
 137             explicit ADD_USER_NONIFIER(TRAFFCOUNTER_IMPL & t) :
 138                 NOTIFIER_BASE<USER_IMPL_PTR>(),
 139                 traffCnt(t)
 140             {}
 141     virtual ~ADD_USER_NONIFIER() {}
 142     void    Notify(const USER_IMPL_PTR & user);
 143
 144 private:
 145     ADD_USER_NONIFIER(const ADD_USER_NONIFIER & rvalue);
 146     ADD_USER_NONIFIER & operator=(const ADD_USER_NONIFIER & rvalue);
 147
 148     TRAFFCOUNTER_IMPL & traffCnt;
 149 };
 150 //-----------------------------------------------------------------------------
 151 class DEL_USER_NONIFIER: public NOTIFIER_BASE<USER_IMPL_PTR> {
 152 public:
 153             explicit DEL_USER_NONIFIER(TRAFFCOUNTER_IMPL & t) :
 154                 NOTIFIER_BASE<USER_IMPL_PTR>(),
 155                 traffCnt(t)
 156             {}
 157     virtual ~DEL_USER_NONIFIER() {}
 158     void    Notify(const USER_IMPL_PTR & user);
 159
 160 private:
 161     DEL_USER_NONIFIER(const DEL_USER_NONIFIER & rvalue);
 162     DEL_USER_NONIFIER & operator=(const DEL_USER_NONIFIER & rvalue);
 163
 164     TRAFFCOUNTER_IMPL & traffCnt;
 165 };
 166 //-----------------------------------------------------------------------------
 167 class TRAFFCOUNTER_IMPL : public TRAFFCOUNTER, private NONCOPYABLE {
 168 friend class ADD_USER_NONIFIER;
 169 friend class DEL_USER_NONIFIER;
 170 friend class TRF_IP_BEFORE;
 171 friend class TRF_IP_AFTER;
 172 public:
 173     TRAFFCOUNTER_IMPL(USERS_IMPL * users, const std::string & rulesFileName);
 174     ~TRAFFCOUNTER_IMPL();
 175
 176     int         Reload();
 177     int         Start();
 178     int         Stop();
 179
 180     void        Process(const RAW_PACKET & rawPacket);
 181     void        SetMonitorDir(const std::string & monitorDir);
 182
 183     size_t      RulesCount() const { return rules.size(); }
 184
 185 private:
 186     TRAFFCOUNTER_IMPL(const TRAFFCOUNTER_IMPL &);
 187     TRAFFCOUNTER_IMPL & operator=(const TRAFFCOUNTER_IMPL &);
 188
 189     bool        ParseAddress(const char * ta, RULE * rule) const;
 190     uint32_t    CalcMask(uint32_t msk) const;
 191     void        FreeRules();
 192     bool        ReadRules(bool test = false);
 193
 194     static void * Run(void * data);
 195
 196     void        DeterminateDir(const RAW_PACKET & packet,
 197                                int * dirU, // Direction for upload
 198                                int * dirD) const; // Direction for download
 199
 200     void        FlushAndRemove();
 201
 202     void        AddUser(USER_IMPL * user);
 203     void        DelUser(uint32_t uip);
 204     void        SetUserNotifiers(USER_IMPL * user);
 205     void        UnSetUserNotifiers(USER_IMPL * user);
 206
 207     typedef std::list<RULE>::iterator rule_iter;
 208
 209     std::list<RULE>          rules;
 210
 211     typedef std::map<RAW_PACKET, PACKET_EXTRA_DATA> Packets;
 212     typedef Packets::iterator pp_iter;
 213     typedef std::multimap<uint32_t, pp_iter> Index;
 214     typedef Index::iterator ip2p_iter;
 215     typedef Index::const_iterator ip2p_citer;
 216
 217     Packets packets; // Packets tree
 218
 219     Index ip2packets; // IP-to-Packet index
 220
 221     std::string              dirName[DIR_NUM + 1];
 222
 223     STG_LOGGER &             WriteServLog;
 224     std::string              rulesFileName;
 225
 226     std::string              monitorDir;
 227     bool                     monitoring;
 228     time_t                   touchTimeP;
 229
 230     USERS_IMPL *             users;
 231
 232     bool                     running;
 233     bool                     stopped;
 234     pthread_mutex_t          mutex;
 235     pthread_t                thread;
 236
 237     std::list<TRF_IP_BEFORE> ipBeforeNotifiers;
 238     std::list<TRF_IP_AFTER>  ipAfterNotifiers;
 239
 240     ADD_USER_NONIFIER        addUserNotifier;
 241     DEL_USER_NONIFIER        delUserNotifier;
 242 };
 243 //-----------------------------------------------------------------------------
 244 inline
 245 void TRF_IP_BEFORE::Notify(const uint32_t & oldValue, const uint32_t &)
 246 {
 247 // User changes his address. Remove old IP
 248 if (!oldValue)
 249     return;
 250
 251 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::DelUser, oldValue);
 252 }
 253 //-----------------------------------------------------------------------------
 254 inline
 255 void TRF_IP_AFTER::Notify(const uint32_t &, const uint32_t & newValue)
 256 {
 257 // User changes his address. Add new IP
 258 if (!newValue)
 259     return;
 260
 261 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::AddUser, user);
 262 }
 263 //-----------------------------------------------------------------------------
 264 inline
 265 void ADD_USER_NONIFIER::Notify(const USER_IMPL_PTR & user)
 266 {
 267 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::SetUserNotifiers, user);
 268 }
 269 //-----------------------------------------------------------------------------
 270 inline
 271 void DEL_USER_NONIFIER::Notify(const USER_IMPL_PTR & user)
 272 {
 273 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::UnSetUserNotifiers, user);
 274 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::DelUser, user->GetCurrIP());
 275 }
 276 //-----------------------------------------------------------------------------
 277 #endif //TRAFFCOUNTER_H