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/* --------------------------------------------------------------------------
 * License
 * The contents of this file are subject to the Jabber Open Source License
 * Version 1.0 (the "JOSL").  You may not copy or use this file, in either
 * source code or executable form, except in compliance with the JOSL. You
 * may obtain a copy of the JOSL at http://www.jabber.org/ or at
 * http://www.opensource.org/.  
 * Software distributed under the JOSL is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the JOSL
 * for the specific language governing rights and limitations under the
 * JOSL.
 * Copyrights
 * Portions created by or assigned to Jabber.com, Inc. are 
 * Copyright (c) 1999-2002 Jabber.com, Inc.  All Rights Reserved.  Contact
 * information for Jabber.com, Inc. is available at http://www.jabber.com/.
 * Portions Copyright (c) 1998-1999 Jeremie Miller.
 * Acknowledgements
 * Special thanks to the Jabber Open Source Contributors for their
 * suggestions and support of Jabber.
 * Alternatively, the contents of this file may be used under the terms of the
 * GNU General Public License Version 2 or later (the "GPL"), in which case
 * the provisions of the GPL are applicable instead of those above.  If you
 * wish to allow use of your version of this file only under the terms of the
 * GPL and not to allow others to use your version of this file under the JOSL,
 * indicate your decision by deleting the provisions above and replace them
 * with the notice and other provisions required by the GPL.  If you do not
 * delete the provisions above, a recipient may use your version of this file
 * under either the JOSL or the GPL. 
 * --------------------------------------------------------------------------*/

#include <jabberd.h>

/* s2s instance */
typedef struct db_struct
    instance i;
    HASHTABLE nscache; /* host/ip local resolution cache */
    HASHTABLE out_connecting; /* where unvalidated in-progress connections are, key is to/from */
    HASHTABLE out_ok_db; /* hash table of all connected dialback hosts, key is same to/from */
    HASHTABLE out_ok_legacy; /* hash table of all connected legacy hosts, key is same to/from */
    HASHTABLE in_id; /* all the incoming connections waiting to be checked, rand id attrib is key */
    HASHTABLE in_ok_db; /* all the incoming dialback connections that are ok, ID@to/from is key  */
    HASHTABLE in_ok_legacy; /* all the incoming legacy connections that are ok, ID@to is key */
    char *secret; /* our dialback secret */
    int legacy; /* flag to allow old servers */
    int timeout_packets;
    int timeout_idle;
} *db, _db;

/* wrap an mio and track the idle time of it */
typedef struct miod_struct
    mio m;
    int last, count;
    db d;
} *miod, _miod;

void dialback_out_packet(db d, xmlnode x, char *ip);
result dialback_out_beat_packets(void *arg);

void dialback_in_read(mio s, int flags, void *arg, xmlnode x);
void dialback_in_verify(db d, xmlnode x);

char *dialback_randstr(void);
char *dialback_merlin(pool p, char *secret, char *to, char *challenge);
void dialback_miod_hash(miod md, HASHTABLE ht, jid key);
miod dialback_miod_new(db d, mio m);
void dialback_miod_write(miod md, xmlnode x);
void dialback_miod_read(miod md, xmlnode x);
char *dialback_ip_get(db d, jid host, char *ip);
void dialback_ip_set(db d, jid host, char *ip);

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