FM / dns

/usr/include/dns

Name	Size	Mode	Actions
acl.h	6432	0644	edit dl rm
adb.h	18372	0644	edit dl rm
byaddr.h	4513	0644	edit dl rm
cache.h	7591	0644	edit dl rm
callbacks.h	2240	0644	edit dl rm
cert.h	1987	0644	edit dl rm
compress.h	6224	0644	edit dl rm
db.h	41302	0644	edit dl rm
dbiterator.h	7871	0644	edit dl rm
dbtable.h	3691	0644	edit dl rm
diff.h	7628	0644	edit dl rm
dispatch.h	13566	0644	edit dl rm
dlz.h	11152	0644	edit dl rm
dnssec.h	11101	0644	edit dl rm
ds.h	1912	0644	edit dl rm
dynamic_db.h	1892	0644	edit dl rm
enumclass.h	1787	0644	edit dl rm
enumtype.h	6729	0644	edit dl rm
events.h	3959	0644	edit dl rm
fixedname.h	2237	0644	edit dl rm
forward.h	3605	0644	edit dl rm
iptable.h	1922	0644	edit dl rm
journal.h	8473	0644	edit dl rm
keyflags.h	1803	0644	edit dl rm
keytable.h	10212	0644	edit dl rm
keyvalues.h	4318	0644	edit dl rm
lib.h	1718	0644	edit dl rm
log.h	4143	0644	edit dl rm
master.h	9396	0644	edit dl rm
masterdump.h	9657	0644	edit dl rm
message.h	37972	0644	edit dl rm
name.h	35862	0644	edit dl rm
ncache.h	5184	0644	edit dl rm
nsec.h	2328	0644	edit dl rm
peer.h	5437	0644	edit dl rm
portlist.h	2539	0644	edit dl rm
private.h	1912	0644	edit dl rm
rbt.h	34526	0644	edit dl rm
rcode.h	3003	0644	edit dl rm
rdata.h	21333	0644	edit dl rm
rdataclass.h	2317	0644	edit dl rm
rdatalist.h	2895	0644	edit dl rm
rdataset.h	19824	0644	edit dl rm
rdatasetiter.h	4455	0644	edit dl rm
rdataslab.h	4679	0644	edit dl rm
rdatastruct.h	77858	0644	edit dl rm
rdatatype.h	2371	0644	edit dl rm
request.h	10448	0644	edit dl rm
resolver.h	16248	0644	edit dl rm
result.h	8493	0644	edit dl rm
rootns.h	1429	0644	edit dl rm
rpz.h	5438	0644	edit dl rm
rrl.h	6995	0644	edit dl rm
sdb.h	7341	0644	edit dl rm
sdlz.h	14440	0644	edit dl rm
secalg.h	2235	0644	edit dl rm
secproto.h	2082	0644	edit dl rm
soa.h	2750	0644	edit dl rm
ssu.h	6773	0644	edit dl rm
tcpmsg.h	3649	0644	edit dl rm
time.h	2093	0644	edit dl rm
tkey.h	8145	0644	edit dl rm
tsig.h	8727	0644	edit dl rm
ttl.h	2126	0644	edit dl rm
types.h	12295	0644	edit dl rm
validator.h	7524	0644	edit dl rm
version.h	1207	0644	edit dl rm
view.h	29037	0644	edit dl rm
xfrin.h	3130	0644	edit dl rm
zone.h	46200	0644	edit dl rm
zonekey.h	1283	0644	edit dl rm
zt.h	4644	0644	edit dl rm

Edit: /usr/include/dns/journal.h (8473B)

/*
 * Copyright (C) 2004-2009  Internet Systems Consortium, Inc. ("ISC")
 * Copyright (C) 1999-2001  Internet Software Consortium.
 *
 * Permission to use, copy, modify, and/or distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
 * PERFORMANCE OF THIS SOFTWARE.
 */

/* $Id: journal.h,v 1.37 2009-11-04 23:48:18 tbox Exp $ */

#ifndef DNS_JOURNAL_H
#define DNS_JOURNAL_H 1

/*****
 ***** Module Info
 *****/

/*! \file dns/journal.h
 * \brief
 * Database journaling.
 */

/***
 *** Imports
 ***/

#include <isc/lang.h>
#include <isc/magic.h>

#include <dns/name.h>
#include <dns/diff.h>
#include <dns/rdata.h>
#include <dns/types.h>

/***
 *** Defines.
 ***/
#define DNS_JOURNALOPT_RESIGN	0x00000001

/***
 *** Types
 ***/

/*%
 * A dns_journal_t represents an open journal file.  This is an opaque type.
 *
 * A particular dns_journal_t object may be opened for writing, in which case
 * it can be used for writing transactions to a journal file, or it can be
 * opened for reading, in which case it can be used for reading transactions
 * from (iterating over) a journal file.  A single dns_journal_t object may
 * not be used for both purposes.
 */
typedef struct dns_journal dns_journal_t;

/***
 *** Functions
 ***/

ISC_LANG_BEGINDECLS

/**************************************************************************/

isc_result_t
dns_db_createsoatuple(dns_db_t *db, dns_dbversion_t *ver, isc_mem_t *mctx,
		   dns_diffop_t op, dns_difftuple_t **tp);
/*!< brief
 * Create a diff tuple for the current database SOA.
 * XXX this probably belongs somewhere else.
 */

/*@{*/
#define DNS_SERIAL_GT(a, b) ((int)(((a) - (b)) & 0xFFFFFFFF) > 0)
#define DNS_SERIAL_GE(a, b) ((int)(((a) - (b)) & 0xFFFFFFFF) >= 0)
/*!< brief
 * Compare SOA serial numbers.  DNS_SERIAL_GT(a, b) returns true iff
 * a is "greater than" b where "greater than" is as defined in RFC1982.
 * DNS_SERIAL_GE(a, b) returns true iff a is "greater than or equal to" b.
 */
/*@}*/

/**************************************************************************/
/*
 * Journal object creation and destruction.
 */

isc_result_t
dns_journal_open(isc_mem_t *mctx, const char *filename, isc_boolean_t write,
		 dns_journal_t **journalp);
/*%<
 * Open the journal file 'filename' and create a dns_journal_t object for it.
 *
 * If 'write' is ISC_TRUE, the journal is open for writing.  If it does
 * not exist, it is created.
 *
 * If 'write' is ISC_FALSE, the journal is open for reading.  If it does
 * not exist, ISC_R_NOTFOUND is returned.
 */

void
dns_journal_destroy(dns_journal_t **journalp);
/*%<
 * Destroy a dns_journal_t, closing any open files and freeing its memory.
 */

/**************************************************************************/
/*
 * Writing transactions to journals.
 */

isc_result_t
dns_journal_begin_transaction(dns_journal_t *j);
/*%<
 * Prepare to write a new transaction to the open journal file 'j'.
 *
 * Requires:
 *     \li 'j' is open for writing.
 */

isc_result_t
dns_journal_writediff(dns_journal_t *j, dns_diff_t *diff);
/*%<
 * Write 'diff' to the current transaction of journal file 'j'.
 *
 * Requires:
 * \li     'j' is open for writing and dns_journal_begin_transaction()
 * 	has been called.
 *
 *\li 	'diff' is a full or partial, correctly ordered IXFR
 *      difference sequence.
 */

isc_result_t
dns_journal_commit(dns_journal_t *j);
/*%<
 * Commit the current transaction of journal file 'j'.
 *
 * Requires:
 * \li     'j' is open for writing and dns_journal_begin_transaction()
 * 	has been called.
 *
 *   \li   dns_journal_writediff() has been called one or more times
 * 	to form a complete, correctly ordered IXFR difference
 *      sequence.
 */

isc_result_t
dns_journal_write_transaction(dns_journal_t *j, dns_diff_t *diff);
/*%
 * Write a complete transaction at once to a journal file,
 * sorting it if necessary, and commit it.  Equivalent to calling
 * dns_diff_sort(), dns_journal_begin_transaction(),
 * dns_journal_writediff(), and dns_journal_commit().
 *
 * Requires:
 *\li      'j' is open for writing.
 *
 * \li	'diff' contains exactly one SOA deletion, one SOA addition
 *       with a greater serial number, and possibly other changes,
 *       in arbitrary order.
 */

/**************************************************************************/
/*
 * Reading transactions from journals.
 */

isc_uint32_t
dns_journal_first_serial(dns_journal_t *j);
isc_uint32_t
dns_journal_last_serial(dns_journal_t *j);
/*%<
 * Get the first and last addressable serial number in the journal.
 */

isc_result_t
dns_journal_iter_init(dns_journal_t *j,
		      isc_uint32_t begin_serial, isc_uint32_t end_serial);
/*%<
 * Prepare to iterate over the transactions that will bring the database
 * from SOA serial number 'begin_serial' to 'end_serial'.
 *
 * Returns:
 *\li	ISC_R_SUCCESS
 *\li	ISC_R_RANGE	begin_serial is outside the addressable range.
 *\li	ISC_R_NOTFOUND	begin_serial is within the range of addressable
 *			serial numbers covered by the journal, but
 *			this particular serial number does not exist.
 */

/*@{*/
isc_result_t
dns_journal_first_rr(dns_journal_t *j);
isc_result_t
dns_journal_next_rr(dns_journal_t *j);
/*%<
 * Position the iterator at the first/next RR in a journal
 * transaction sequence established using dns_journal_iter_init().
 *
 * Requires:
 *    \li  dns_journal_iter_init() has been called.
 *
 */
/*@}*/

void
dns_journal_current_rr(dns_journal_t *j, dns_name_t **name, isc_uint32_t *ttl,
		       dns_rdata_t **rdata);
/*%<
 * Get the name, ttl, and rdata of the current journal RR.
 *
 * Requires:
 * \li     The last call to dns_journal_first_rr() or dns_journal_next_rr()
 *      returned ISC_R_SUCCESS.
 */

/**************************************************************************/
/*
 * Database roll-forward.
 */

isc_result_t
dns_journal_rollforward(isc_mem_t *mctx, dns_db_t *db, unsigned int options,
			const char *filename);

isc_result_t
dns_journal_rollforward2(isc_mem_t *mctx, dns_db_t *db, unsigned int options,
			 isc_uint32_t resign, const char *filename);
/*%<
 * Roll forward (play back) the journal file "filename" into the
 * database "db".  This should be called when the server starts
 * after a shutdown or crash.  'resign' is how many seconds before
 * a RRSIG is due to expire it should be scheduled to be regenerated.
 *
 * Requires:
 *\li	dns_journal_rollforward() requires that DNS_JOURNALOPT_RESIGN
 *	is not set.
 *\li   'mctx' is a valid memory context.
 *\li	'db' is a valid database which does not have a version
 *           open for writing.
 *\li   'filename' is the name of the journal file belonging to 'db'.
 *
 * Returns:
 *\li	DNS_R_NOJOURNAL when journal does not exist.
 *\li	ISC_R_NOTFOUND when current serial in not in journal.
 *\li	ISC_R_RANGE when current serial in not in journals range.
 *\li	ISC_R_SUCCESS journal has been applied successfully to database.
 *	others
 */

isc_result_t
dns_journal_print(isc_mem_t *mctx, const char *filename, FILE *file);
/* For debugging not general use */

isc_result_t
dns_db_diff(isc_mem_t *mctx,
	    dns_db_t *dba, dns_dbversion_t *dbvera,
	    dns_db_t *dbb, dns_dbversion_t *dbverb,
	    const char *journal_filename);
/*%<
 * Compare the databases 'dba' and 'dbb' and generate a journal
 * entry containing the changes to make 'dba' from 'dbb' (note
 * the order).  This journal entry will consist of a single,
 * possibly very large transaction.  Append the journal
 * entry to the journal file specified by 'journal_filename'.
 */

isc_result_t
dns_journal_compact(isc_mem_t *mctx, char *filename, isc_uint32_t serial,
		    isc_uint32_t target_size);
/*%<
 * Attempt to compact the journal if it is greater that 'target_size'.
 * Changes from 'serial' onwards will be preserved.  If the journal
 * exists and is non-empty 'serial' must exist in the journal.
 */

ISC_LANG_ENDDECLS

#endif /* DNS_JOURNAL_H */

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