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 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                 TRF_IP_BEFORE(const TRF_IP_BEFORE & rvalue)
 111                     : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 112                       traffCnt(rvalue.traffCnt),
 113                       user(rvalue.user)
 114                 {}
 115     void        Notify(const uint32_t & oldValue, const uint32_t & newValue);
 116     void        SetUser(USER_IMPL * u) { user = u; }
 117     USER_IMPL * GetUser() const { return user; }
 118
 119 private:
 120     TRF_IP_BEFORE & operator=(const TRF_IP_BEFORE & rvalue);
 121
 122     TRAFFCOUNTER_IMPL & traffCnt;
 123     USER_IMPL * user;
 124 };
 125 //-----------------------------------------------------------------------------
 126 class TRF_IP_AFTER: public PROPERTY_NOTIFIER_BASE<uint32_t> {
 127 public:
 128                 TRF_IP_AFTER(TRAFFCOUNTER_IMPL & t, USER_IMPL * u)
 129                     : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 130                       traffCnt(t),
 131                       user(u)
 132                 {}
 133                 TRF_IP_AFTER(const TRF_IP_AFTER & rvalue)
 134                     : PROPERTY_NOTIFIER_BASE<uint32_t>(),
 135                       traffCnt(rvalue.traffCnt),
 136                       user(rvalue.user)
 137                 {}
 138     void        Notify(const uint32_t & oldValue, const uint32_t & newValue);
 139     void        SetUser(USER_IMPL * u) { user = u; }
 140     USER_IMPL * GetUser() const { return user; }
 141 private:
 142     TRF_IP_AFTER & operator=(const TRF_IP_AFTER & rvalue);
 143
 144     TRAFFCOUNTER_IMPL & traffCnt;
 145     USER_IMPL * user;
 146 };
 147 //-----------------------------------------------------------------------------
 148 class ADD_USER_NONIFIER: public NOTIFIER_BASE<USER_IMPL_PTR> {
 149 public:
 150             explicit ADD_USER_NONIFIER(TRAFFCOUNTER_IMPL & t) :
 151                 NOTIFIER_BASE<USER_IMPL_PTR>(),
 152                 traffCnt(t)
 153             {}
 154     virtual ~ADD_USER_NONIFIER() {}
 155     void    Notify(const USER_IMPL_PTR & user);
 156
 157 private:
 158     ADD_USER_NONIFIER(const ADD_USER_NONIFIER & rvalue);
 159     ADD_USER_NONIFIER & operator=(const ADD_USER_NONIFIER & rvalue);
 160
 161     TRAFFCOUNTER_IMPL & traffCnt;
 162 };
 163 //-----------------------------------------------------------------------------
 164 class DEL_USER_NONIFIER: public NOTIFIER_BASE<USER_IMPL_PTR> {
 165 public:
 166             explicit DEL_USER_NONIFIER(TRAFFCOUNTER_IMPL & t) :
 167                 NOTIFIER_BASE<USER_IMPL_PTR>(),
 168                 traffCnt(t)
 169             {}
 170     virtual ~DEL_USER_NONIFIER() {}
 171     void    Notify(const USER_IMPL_PTR & user);
 172
 173 private:
 174     DEL_USER_NONIFIER(const DEL_USER_NONIFIER & rvalue);
 175     DEL_USER_NONIFIER & operator=(const DEL_USER_NONIFIER & rvalue);
 176
 177     TRAFFCOUNTER_IMPL & traffCnt;
 178 };
 179 //-----------------------------------------------------------------------------
 180 class TRAFFCOUNTER_IMPL : public TRAFFCOUNTER, private NONCOPYABLE {
 181 friend class ADD_USER_NONIFIER;
 182 friend class DEL_USER_NONIFIER;
 183 friend class TRF_IP_BEFORE;
 184 friend class TRF_IP_AFTER;
 185 public:
 186     TRAFFCOUNTER_IMPL(USERS_IMPL * users, const std::string & rulesFileName);
 187     ~TRAFFCOUNTER_IMPL();
 188
 189     int         Reload();
 190     int         Start();
 191     int         Stop();
 192
 193     void        Process(const RAW_PACKET & rawPacket);
 194     void        SetMonitorDir(const std::string & monitorDir);
 195
 196     size_t      RulesCount() const { return rules.size(); }
 197
 198 private:
 199     TRAFFCOUNTER_IMPL(const TRAFFCOUNTER_IMPL & rvalue);
 200     TRAFFCOUNTER_IMPL & operator=(const TRAFFCOUNTER_IMPL & rvalue);
 201
 202     bool        ParseAddress(const char * ta, RULE * rule) const;
 203     uint32_t    CalcMask(uint32_t msk) const;
 204     void        FreeRules();
 205     bool        ReadRules(bool test = false);
 206
 207     static void * Run(void * data);
 208
 209     void        DeterminateDir(const RAW_PACKET & packet,
 210                                int * dirU, // Direction for upload
 211                                int * dirD) const; // Direction for download
 212
 213     void        FlushAndRemove();
 214
 215     void        AddUser(USER_IMPL * user);
 216     void        DelUser(uint32_t uip);
 217     void        SetUserNotifiers(USER_IMPL * user);
 218     void        UnSetUserNotifiers(USER_IMPL * user);
 219
 220     typedef std::list<RULE>::iterator rule_iter;
 221
 222     std::list<RULE>          rules;
 223
 224     typedef std::map<RAW_PACKET, PACKET_EXTRA_DATA> Packets;
 225     typedef Packets::iterator pp_iter;
 226     typedef std::multimap<uint32_t, pp_iter> Index;
 227     typedef Index::iterator ip2p_iter;
 228     typedef Index::const_iterator ip2p_citer;
 229
 230     Packets packets; // Packets tree
 231
 232     Index ip2packets; // IP-to-Packet index
 233
 234     std::string              dirName[DIR_NUM + 1];
 235
 236     STG_LOGGER &             WriteServLog;
 237     std::string              rulesFileName;
 238
 239     std::string              monitorDir;
 240     bool                     monitoring;
 241     time_t                   touchTimeP;
 242
 243     USERS_IMPL *             users;
 244
 245     bool                     running;
 246     bool                     stopped;
 247     pthread_mutex_t          mutex;
 248     pthread_t                thread;
 249
 250     std::list<TRF_IP_BEFORE> ipBeforeNotifiers;
 251     std::list<TRF_IP_AFTER>  ipAfterNotifiers;
 252
 253     ADD_USER_NONIFIER        addUserNotifier;
 254     DEL_USER_NONIFIER        delUserNotifier;
 255 };
 256 //-----------------------------------------------------------------------------
 257 inline
 258 void TRF_IP_BEFORE::Notify(const uint32_t & oldValue, const uint32_t &)
 259 {
 260 // User changes his address. Remove old IP
 261 if (!oldValue)
 262     return;
 263
 264 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::DelUser, oldValue);
 265 }
 266 //-----------------------------------------------------------------------------
 267 inline
 268 void TRF_IP_AFTER::Notify(const uint32_t &, const uint32_t & newValue)
 269 {
 270 // User changes his address. Add new IP
 271 if (!newValue)
 272     return;
 273
 274 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::AddUser, user);
 275 }
 276 //-----------------------------------------------------------------------------
 277 inline
 278 void ADD_USER_NONIFIER::Notify(const USER_IMPL_PTR & user)
 279 {
 280 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::SetUserNotifiers, user);
 281 }
 282 //-----------------------------------------------------------------------------
 283 inline
 284 void DEL_USER_NONIFIER::Notify(const USER_IMPL_PTR & user)
 285 {
 286 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::UnSetUserNotifiers, user);
 287 EVENT_LOOP_SINGLETON::GetInstance().Enqueue(traffCnt, &TRAFFCOUNTER_IMPL::DelUser, user->GetCurrIP());
 288 }
 289 //-----------------------------------------------------------------------------
 290 #endif //TRAFFCOUNTER_H