typedefs.hpp

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/*
Copyright (c) 2000, The JAP-Team
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  - Redistributions of source code must retain the above copyright notice,
    this list of conditions and the following disclaimer.

  - Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation and/or
    other materials provided with the distribution.

  - Neither the name of the University of Technology Dresden, Germany nor the names of its contributors
    may be used to endorse or promote products derived from this software without specific
    prior written permission.


THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS
OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
*/
#ifndef __TYEDEFS__
#define __TYEDEFS__
enum NetworkType {UNKNOWN_NETWORKTYPE,RAW_TCP,RAW_UNIX,SSL_TCP,SSL_UNIX, HTTP_TCP};

enum TargetType {TARGET_UNKNOWN,TARGET_MIX,TARGET_HTTP_PROXY,TARGET_SOCKS_PROXY};

typedef UINT32 HCHANNEL;
#define MIX_PAYLOAD_HTTP  0
#define MIX_PAYLOAD_SOCKS 1


#define MIXPACKET_SIZE  998

#define CHANNEL_DATA    0x00
#define CHANNEL_OPEN    0x08

#define CHANNEL_TIMESTAMPS_UP 0x60
#define CHANNEL_TIMESTAMPS_DOWN 0x90
#define CHANNEL_CLOSE   0x01
//#define CHANNEL_SUSPEND 0x02 //no longer in use
//#define CHANNEL_RESUME  0x04 //no longer in use
#define CHANNEL_DUMMY   0x10

#ifdef LOG_CRIME
  #define CHANNEL_SIG_CRIME 0x20
  #define CHANNEL_SIG_CRIME_ID_MASK 0x0000FF00
  #define CHANNEL_ALLOWED_FLAGS   (CHANNEL_OPEN|CHANNEL_CLOSE|CHANNEL_TIMESTAMPS_UP|CHANNEL_TIMESTAMPS_DOWN|CHANNEL_SIG_CRIME|CHANNEL_SIG_CRIME_ID_MASK)
#else
  #define CHANNEL_SIG_CRIME 0x0
  #define CHANNEL_SIG_CRIME_ID_MASK 0x0
  #define CHANNEL_ALLOWED_FLAGS   (CHANNEL_OPEN|CHANNEL_CLOSE|CHANNEL_TIMESTAMPS_UP|CHANNEL_TIMESTAMPS_DOWN)
#endif

#define NEW_FLOW_CONTROL_FLAG 0x8000

#define INTEGRITY_ERROR_FLAG  0x4000

#define CONNECTION_ERROR_FLAG 0x01

#define DATA_SIZE       992
#ifdef WITH_INTEGRITY_CHECK
  #define PAYLOAD_SIZE  973
#else
  #define PAYLOAD_SIZE  989
#endif

#define PAYLOAD_HEADER_SIZE 3

#define GCM_MAC_SIZE    16
#define PAYLOAD_LEN_MASK 0x03FF;

#if (defined(WIN32) ||defined(__sgi))&&!defined(__GNUC__)
  #define DO_PACKED
#else
  #define DO_PACKED __attribute__ ((__packed__))
#endif


#if (defined(WIN32) ||defined(__sgi))&&!defined(__GNUC__)
    #pragma pack( push, t_MixPacket )
    #pragma pack(1)
    struct t_MixPacketPayload
      {
        UINT16 len;
        UINT8 type;
        UINT8 data[PAYLOAD_SIZE];
      };
    struct t_MixPacket
      {
        HCHANNEL channel;
        UINT16  flags;
        union
          {
            UINT8   data[DATA_SIZE];
            struct t_MixPacketPayload payload;
          };
      };
    #pragma pack( pop, t_MixPacket )
#else
    struct t_MixPacketPayload
      {
        UINT16 len;
        UINT8 type;
        UINT8 data[PAYLOAD_SIZE];
      } __attribute__ ((__packed__));
    struct t_MixPacket
      {
        HCHANNEL channel;
        UINT16  flags;
        union
          {
            UINT8   data[DATA_SIZE];
            struct t_MixPacketPayload payload;
          };
      } __attribute__ ((__packed__)); // MUXPACKET __attribute__ ((__packed__));
#endif //WIN32

typedef t_MixPacket MIXPACKET;

#ifdef DATA_RETENTION_LOG
#if (defined(WIN32) ||defined(__sgi))&&!defined(__GNUC__)
    #pragma pack( push, t_DataRetentionLogEntry )
    #pragma pack(1)
#endif
struct __t__data_retention_log_entry
  {
    UINT32 t_in;
    UINT32 t_out;
    union t_union_entity
    {
      struct t_first_mix_data_retention_log_entry
        {
          HCHANNEL channelid;
          UINT8 ip_in[4];
          UINT16 port_in;
        } DO_PACKED first;
      struct t_last_mix_data_retention_log_entry
        {
          HCHANNEL channelid;
          UINT8 ip_out[4];
          UINT16 port_out;
        } DO_PACKED last;
    } DO_PACKED entity;
  }
#if (defined(WIN32) ||defined(__sgi))&&!defined(__GNUC__)
  ;
  #pragma pack( pop, t_DataRetentionLogEntry )
#else
  DO_PACKED ;
#endif

typedef struct __t__data_retention_log_entry t_dataretentionLogEntry;
#endif //DATA_RETENION_LOG



//For that we store in our packet queue...
//normally this is just the packet
struct t_queue_entry
  {
    MIXPACKET packet;
    #if defined(DATA_RETENTION_LOG)
      t_dataretentionLogEntry dataRetentionLogEntry;
    #endif
    #if defined  (LOG_PACKET_TIMES) || defined (LOG_CHANNEL)
      UINT64 timestamp_proccessing_start;
      UINT64 timestamp_proccessing_start_OP;
      UINT64 timestamp_proccessing_end;
    #endif
    #if defined  (LOG_PACKET_TIMES)
      //without send/receive or queueing times
      UINT64 timestamp_proccessing_end_OP;
      #ifdef USE_POOL
        UINT64 pool_timestamp_in;
        UINT64 pool_timestamp_out;
      #endif
    #endif
  };
typedef struct t_queue_entry tQueueEntry;

//for that we store in our pool
//normaly this is just the packet
typedef tQueueEntry tPoolEntry;

/*
struct t_proxytest_log
{
  UINT16 len;
  time_t time;
};

typedef struct t_proxytest_log tProxytestLog;
*/

struct t_replay_timestamp
  {
    UINT interval; //the current interval number
    UINT offset; //seconds since start of this interval
  };

typedef struct t_replay_timestamp tReplayTimestamp;

struct t_mix_parameters
  {
    //stores the mix id of the mix
    UINT8* m_strMixID;
    // stores the local time in seconds since epoch for interval '0' for this mix
    UINT32 m_u32ReplayOffset;
    UINT16 m_u32ReplayBase;
  };
typedef struct t_mix_parameters tMixParameters;


#define AUTH_NEW 0x0

#define AUTH_GOT_ACCOUNTCERT 0x1

#define AUTH_ACCOUNT_OK 0x2

#define AUTH_WAITING_FOR_FIRST_SETTLED_CC 0x4

#define AUTH_SENT_CC_REQUEST 0x20

#define AUTH_DATABASE 0x40

#define AUTH_BLOCKED 0x80

#define AUTH_SENT_ACCOUNT_REQUEST 0x100

#define AUTH_HARD_LIMIT_REACHED 0x200

#define AUTH_FAKE 0x400

#define AUTH_CHALLENGE_SENT 0x800

#define AUTH_ACCOUNT_EMPTY 0x1000

#define AUTH_FATAL_ERROR 0x2000

#define AUTH_OUTDATED_CC 0x4000

#define AUTH_INVALID_ACCOUNT 0x8000

// AI is waiting for a necessary message from JAP (e.g. response to challenge)
#define AUTH_TIMEOUT_STARTED 0x10000

#define AUTH_MULTIPLE_LOGIN 0x20000

#define AUTH_UNKNOWN 0x40000

// we settled at least one CC for this account in this session
#define AUTH_SETTLED_ONCE 0x80000

/*
 * The user corresponding to this entry has closed the connection.
 * Delete the entry as soon as possible.
 */
#define AUTH_DELETE_ENTRY 0x80000

#define AUTH_LOGIN_NOT_FINISHED 0x100000
#define AUTH_LOGIN_FAILED 0x200000
#define AUTH_LOGIN_SKIP_SETTLEMENT 0x400000

class CASignature;
class CAAccountingControlChannel;
class CAMutex;
struct t_fmhashtableentry;
struct t_accountinginfo
{
  CAMutex* mutex;

  UINT8 * pChallenge;

  CASignature * pPublicKey;

  UINT64 sessionPackets;

  UINT64 transferredBytes;

  UINT64 confirmedBytes;

  UINT64 bytesToConfirm;

  UINT64 accountNumber;

  UINT64 userID;

  struct t_fmhashtableentry *ownerRef;
  CAAccountingControlChannel* pControlChannel;

  UINT32 authFlags;

  SINT32 lastHardLimitSeconds;

  SINT32 challengeSentSeconds;

  UINT8* pstrBIID;

  //time at which the timeout for waiting for the account certificate has been started
  SINT32 authTimeoutStartSeconds;

  // the number of references to this entry in the ai queue
  UINT32 nrInQueue;

  // new JonDo clients will send their version number as during challenge-response.
  UINT8* clientVersion;
};
typedef struct t_accountinginfo tAiAccountingInfo;

#endif