path: root/src/gns/gnunet-service-gns.c

/*
     This file is part of GNUnet.
     (C) 2009, 2010, 2011, 2012 Christian Grothoff (and other contributing authors)

     GNUnet 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 3, or (at your
     option) any later version.

     GNUnet 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 GNUnet; see the file COPYING.  If not, write to the
     Free Software Foundation, Inc., 59 Temple Place - Suite 330,
     Boston, MA 02111-1307, USA.
*/
/**
 * @file gns/gnunet-service-gns.c
 * @brief GNUnet GNS service
 * @author Martin Schanzenbach
 */
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_transport_service.h"
#include "gnunet_dns_service.h"
#include "gnunet_dnsparser_lib.h"
#include "gnunet_dht_service.h"
#include "gnunet_namestore_service.h"
#include "gnunet_gns_service.h"
#include "gnunet_statistics_service.h"
#include "block_gns.h"
#include "gns.h"
#include "gns_common.h"
#include "gnunet-service-gns_resolver.h"
#include "gnunet-service-gns_interceptor.h"
#include "gnunet_protocols.h"

/**
 * The initial interval in milliseconds btween puts in
 * a zone iteration
 */
#define INITIAL_PUT_INTERVAL GNUNET_TIME_UNIT_MILLISECONDS

/**
 * The upper bound for the zone iteration interval in milliseconds
 */
#define MINIMUM_ZONE_ITERATION_INTERVAL GNUNET_TIME_UNIT_SECONDS

/**
 * The default put interval for the zone iteration. In case
 * No option is found
 */
#define DEFAULT_ZONE_PUBLISH_TIME_WINDOW GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 4)

/**
 * The factor the current zone iteration interval is divided by for each
 * additional new record
 */
#define LATE_ITERATION_SPEEDUP_FACTOR 2


/**
 * Handle to a shorten operation from api
 */
struct ClientShortenHandle
{

  /**
   * List for all shorten requests
   */
  struct ClientShortenHandle *next;

  /**
   * List for all shorten requests
   */
  struct ClientShortenHandle *prev;

  /**
   * Handle to the requesting client
   */
  struct GNUNET_SERVER_Client *client;

  /**
   * Namestore lookup task
   */
  struct GNUNET_NAMESTORE_QueueEntry *namestore_task;

  /**
   * master zone
   */
  struct GNUNET_CRYPTO_ShortHashCode root_zone;

  /**
   * private zone
   */
  struct GNUNET_CRYPTO_ShortHashCode private_zone;
  
  /**
   * shorten zone
   */
  struct GNUNET_CRYPTO_ShortHashCode shorten_zone;
  
  /**
   * The request id
   */
  uint32_t request_id;

  /**
   * request type
   */
  enum GNUNET_GNS_RecordType type;

  /** 
   * name to shorten
   */
  char name[GNUNET_DNSPARSER_MAX_NAME_LENGTH];

  /**
   * name of private zone (relative to root)
   */
  char private_zone_id[GNUNET_DNSPARSER_MAX_NAME_LENGTH];
  
  /**
   * name of shorten zone (relative to root)
   */
  char shorten_zone_id[GNUNET_DNSPARSER_MAX_NAME_LENGTH];

};


/**
 * Handle to a get authority operation from api
 */
struct ClientGetAuthHandle
{
  /**
   * Handle to the requesting client 
   */
  struct GNUNET_SERVER_Client *client;

  /**
   * name to lookup authority
   */
  char *name;

  /**
   * request id
   */
  uint32_t request_id;

};


/**
 * Handle to a lookup operation from api
 */
struct ClientLookupHandle
{

  /**
   * Handle to the requesting client
   */
  struct GNUNET_SERVER_Client *client;

  /**
   * optional zone private key used for shorten
   */
  struct GNUNET_CRYPTO_RsaPrivateKey *shorten_key;

  /**
   * the name to look up
   */
  char *name;