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/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
#ifndef DNS_XFRIN_H
#define DNS_XFRIN_H 1
/*****
***** Module Info
*****/
/*! \file dns/xfrin.h
* \brief
* Incoming zone transfers (AXFR + IXFR).
*/
/***
*** Imports
***/
#include <isc/lang.h>
#include <dns/types.h>
/***
*** Types
***/
/*%
* A transfer in progress. This is an opaque type.
*/
typedef struct dns_xfrin_ctx dns_xfrin_ctx_t;
/***
*** Functions
***/
ISC_LANG_BEGINDECLS
/*% see dns_xfrin_create2() */
isc_result_t
dns_xfrin_create(dns_zone_t *zone, dns_rdatatype_t xfrtype,
isc_sockaddr_t *masteraddr, dns_tsigkey_t *tsigkey,
isc_mem_t *mctx, isc_timermgr_t *timermgr,
isc_socketmgr_t *socketmgr, isc_task_t *task,
dns_xfrindone_t done, dns_xfrin_ctx_t **xfrp);
isc_result_t
dns_xfrin_create2(dns_zone_t *zone, dns_rdatatype_t xfrtype,
isc_sockaddr_t *masteraddr, isc_sockaddr_t *sourceaddr,
dns_tsigkey_t *tsigkey, isc_mem_t *mctx,
isc_timermgr_t *timermgr, isc_socketmgr_t *socketmgr,
isc_task_t *task, dns_xfrindone_t done,
dns_xfrin_ctx_t **xfrp);
isc_result_t
dns_xfrin_create3(dns_zone_t *zone, dns_rdatatype_t xfrtype,
isc_sockaddr_t *masteraddr, isc_sockaddr_t *sourceaddr,
isc_dscp_t dscp, dns_tsigkey_t *tsigkey, isc_mem_t *mctx,
isc_timermgr_t *timermgr, isc_socketmgr_t *socketmgr,
isc_task_t *task, dns_xfrindone_t done,
dns_xfrin_ctx_t **xfrp);
/*%<
* Attempt to start an incoming zone transfer of 'zone'
* from 'masteraddr', creating a dns_xfrin_ctx_t object to
* manage it. Attach '*xfrp' to the newly created object.
*
* Iff ISC_R_SUCCESS is returned, '*done' is guaranteed to be
* called in the context of 'task', with 'zone' and a result
* code as arguments when the transfer finishes.
*
* Requires:
*\li 'xfrtype' is dns_rdatatype_axfr, dns_rdatatype_ixfr
* or dns_rdatatype_soa (soa query followed by axfr if
* serial is greater than current serial).
*
*\li If 'xfrtype' is dns_rdatatype_ixfr or dns_rdatatype_soa,
* the zone has a database.
*/
void
dns_xfrin_shutdown(dns_xfrin_ctx_t *xfr);
/*%<
* If the zone transfer 'xfr' has already finished,
* do nothing. Otherwise, abort it and cause it to call
* its done callback with a status of ISC_R_CANCELED.
*/
void
dns_xfrin_detach(dns_xfrin_ctx_t **xfrp);
/*%<
* Detach a reference to a zone transfer object.
* Caller to maintain external locking if required.
*/
void
dns_xfrin_attach(dns_xfrin_ctx_t *source, dns_xfrin_ctx_t **target);
/*%<
* Caller to maintain external locking if required.
*/
ISC_LANG_ENDDECLS
#endif /* DNS_XFRIN_H */
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