Tiep.h

// This is part of tacppd project (extended tacacs++ daemon)
// (c) Copyright in 2000-2004 by tacppd team and contributors
// see http://tacppd.org for more information
//
// file: Tiep.h
// description: tacppd interchange/exchange protocol

//  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

// modifications:
//

// all comments which start from /** - this is comments for KDoc */
//  for classes
//    @short [short description of the class]
//    @author [class author]
//    @version [class version]
//    @see [references to other classes or methods]
//  for methods
//    @see [references]
//    @return [sentence describing the return value]
//    @exception [list the exeptions that could be thrown]
//    @param [name id] [description]    - can be multiple

#ifndef __TIEP_H__
#define __TIEP_H__

#include "global.h"

struct tiep_pak_hdr {
  unsigned int type;          // 4 bytes: packet type
  unsigned int varkey;        // 4 bytes: crypto variable key
  unsigned int entrynum;      // 4 bytes: number of entries in packet body
  unsigned int priority;      // 4 bytes: tacppd priority value
};

//class TiepPacket : public md5 {
class TiepPacket {
  pthread_mutex_t mutex_tpk_;
  void lock();
  void unlock();
 public:
  TiepPacket::TiepPacket();
  TiepPacket::~TiepPacket();
  struct tiep_pak_hdr *createhdr(int,int,int);
  int packet_type(char*);
  int packet_varkey(char*);
  int packet_num(char*);
  int packet_pri(char*);
  void create_md5_hash(unsigned char*,unsigned char*,unsigned char*);
  void md5_xor(unsigned char*,unsigned char*,unsigned char*,int);
  char *encrypt(char*,int,char*,int);
  char *decrypt(char*,int,char*,int);
};


// devicetrack packet type id
#define TIP_DT_PACKET       1
// usertrack packet type id
#define TIP_UT_PACKET       2
// keepalive packet
#define TIP_KA_PACKET       3
// keepalive start packet
#define TIP_START_PACKET    4

// maximum entries into one TIP packet
#define TIP_MAX_ENT         7

struct dt_pak_entry {
  unsigned int device;
  unsigned int status;
  unsigned int checknum;
};

struct ut_pak_entry {
  char username[32];
  unsigned int device;
  unsigned int userip;
  unsigned int checknum;
  char port[32];
  char phone[32];
  unsigned int status;
};

class TipPacket : public TiepPacket {
  pthread_mutex_t mutex_tp_;
  void lock();
  void unlock();
 public:
  TipPacket::TipPacket();
  TipPacket::~TipPacket();
  bool sendbuf(ipaddr,int,int,char*,int);
  struct dt_pak_entry *read_dt(char*,int,char*);
  struct ut_pak_entry *read_ut(char*,int,char*);
  int packetlen_dt(int);
  int packetlen_ut(int);
};

class TipSystem : public TipPacket {
  pthread_mutex_t mutex_;
  void lock();
  void unlock();
  list<struct dt_pak_entry*> dt_pak;
  list<struct ut_pak_entry*> ut_pak;
 public:
  TipSystem::TipSystem();
  TipSystem::~TipSystem();
  void clear_dt();
  void clear_ut();
  void add_dt(ipaddr,bool);
  void add_ut(const string,ipaddr,ipaddr,const string,const string,bool);
  void send_dt();
  void send_ut();
  void send_ka();
  void send_start();
};


// devicetrack packet type id
#define TEP_DT_PACKET       6
// usertrack packet type id
#define TEP_UT_PACKET       7

class TepPacket : public TiepPacket {
 public:
  bool sendbuf(ipaddr,int,char*,int);
//  struct dt_pak_entry *read_dt(char*,int,char*);
//  struct ut_pak_entry *read_ut(char*,int,char*);
//  int packetlen_dt(int);
//  int packetlen_ut(int);
};

class TepSystem : public TepPacket {
 public:
};

#endif //__TIEP_H__

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