2 * Copyright (C) 2004-2009 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1999-2003 Internet Software Consortium.
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
18 /* $Id: zone.h,v 1.160.50.6 2009/10/05 21:57:00 each Exp $ */
23 /*! \file dns/zone.h */
31 #include <isc/formatcheck.h>
33 #include <isc/rwlock.h>
35 #include <dns/masterdump.h>
36 #include <dns/rdatastruct.h>
37 #include <dns/types.h>
46 #define DNS_ZONEOPT_SERVERS 0x00000001U /*%< perform server checks */
47 #define DNS_ZONEOPT_PARENTS 0x00000002U /*%< perform parent checks */
48 #define DNS_ZONEOPT_CHILDREN 0x00000004U /*%< perform child checks */
49 #define DNS_ZONEOPT_NOTIFY 0x00000008U /*%< perform NOTIFY */
50 #define DNS_ZONEOPT_MANYERRORS 0x00000010U /*%< return many errors on load */
51 #define DNS_ZONEOPT_IXFRFROMDIFFS 0x00000020U /*%< calculate differences */
52 #define DNS_ZONEOPT_NOMERGE 0x00000040U /*%< don't merge journal */
53 #define DNS_ZONEOPT_CHECKNS 0x00000080U /*%< check if NS's are addresses */
54 #define DNS_ZONEOPT_FATALNS 0x00000100U /*%< DNS_ZONEOPT_CHECKNS is fatal */
55 #define DNS_ZONEOPT_MULTIMASTER 0x00000200U /*%< this zone has multiple masters */
56 #define DNS_ZONEOPT_USEALTXFRSRC 0x00000400U /*%< use alternate transfer sources */
57 #define DNS_ZONEOPT_CHECKNAMES 0x00000800U /*%< check-names */
58 #define DNS_ZONEOPT_CHECKNAMESFAIL 0x00001000U /*%< fatal check-name failures */
59 #define DNS_ZONEOPT_CHECKWILDCARD 0x00002000U /*%< check for internal wildcards */
60 #define DNS_ZONEOPT_CHECKMX 0x00004000U /*%< check-mx */
61 #define DNS_ZONEOPT_CHECKMXFAIL 0x00008000U /*%< fatal check-mx failures */
62 #define DNS_ZONEOPT_CHECKINTEGRITY 0x00010000U /*%< perform integrity checks */
63 #define DNS_ZONEOPT_CHECKSIBLING 0x00020000U /*%< perform sibling glue checks */
64 #define DNS_ZONEOPT_NOCHECKNS 0x00040000U /*%< disable IN NS address checks */
65 #define DNS_ZONEOPT_WARNMXCNAME 0x00080000U /*%< warn on MX CNAME check */
66 #define DNS_ZONEOPT_IGNOREMXCNAME 0x00100000U /*%< ignore MX CNAME check */
67 #define DNS_ZONEOPT_WARNSRVCNAME 0x00200000U /*%< warn on SRV CNAME check */
68 #define DNS_ZONEOPT_IGNORESRVCNAME 0x00400000U /*%< ignore SRV CNAME check */
69 #define DNS_ZONEOPT_UPDATECHECKKSK 0x00800000U /*%< check dnskey KSK flag */
70 #define DNS_ZONEOPT_TRYTCPREFRESH 0x01000000U /*%< try tcp refresh on udp failure */
71 #define DNS_ZONEOPT_NOTIFYTOSOA 0x02000000U /*%< Notify the SOA MNAME */
72 #define DNS_ZONEOPT_NSEC3TESTZONE 0x04000000U /*%< nsec3-test-zone */
74 #ifndef NOMINUM_PUBLIC
76 * Nominum specific options build down.
78 #define DNS_ZONEOPT_NOTIFYFORWARD 0x80000000U /* forward notify to master */
79 #endif /* NOMINUM_PUBLIC */
81 #ifndef DNS_ZONE_MINREFRESH
82 #define DNS_ZONE_MINREFRESH 300 /*%< 5 minutes */
84 #ifndef DNS_ZONE_MAXREFRESH
85 #define DNS_ZONE_MAXREFRESH 2419200 /*%< 4 weeks */
87 #ifndef DNS_ZONE_DEFAULTREFRESH
88 #define DNS_ZONE_DEFAULTREFRESH 3600 /*%< 1 hour */
90 #ifndef DNS_ZONE_MINRETRY
91 #define DNS_ZONE_MINRETRY 300 /*%< 5 minutes */
93 #ifndef DNS_ZONE_MAXRETRY
94 #define DNS_ZONE_MAXRETRY 1209600 /*%< 2 weeks */
96 #ifndef DNS_ZONE_DEFAULTRETRY
97 #define DNS_ZONE_DEFAULTRETRY 60 /*%< 1 minute, subject to
98 exponential backoff */
101 #define DNS_ZONESTATE_XFERRUNNING 1
102 #define DNS_ZONESTATE_XFERDEFERRED 2
103 #define DNS_ZONESTATE_SOAQUERY 3
104 #define DNS_ZONESTATE_ANY 4
113 dns_zone_create(dns_zone_t **zonep, isc_mem_t *mctx);
115 * Creates a new empty zone and attach '*zonep' to it.
118 *\li 'zonep' to point to a NULL pointer.
119 *\li 'mctx' to be a valid memory context.
122 *\li '*zonep' refers to a valid zone.
127 *\li #ISC_R_UNEXPECTED
131 dns_zone_setclass(dns_zone_t *zone, dns_rdataclass_t rdclass);
133 * Sets the class of a zone. This operation can only be performed
137 *\li 'zone' to be a valid zone.
138 *\li dns_zone_setclass() not to have been called since the zone was
140 *\li 'rdclass' != dns_rdataclass_none.
144 dns_zone_getclass(dns_zone_t *zone);
146 * Returns the current zone class.
149 *\li 'zone' to be a valid zone.
153 dns_zone_getserial2(dns_zone_t *zone, isc_uint32_t *serialp);
156 dns_zone_getserial(dns_zone_t *zone);
158 * Returns the current serial number of the zone. On success, the SOA
159 * serial of the zone will be copied into '*serialp'.
160 * dns_zone_getserial() cannot catch failure cases and is deprecated by
161 * dns_zone_getserial2().
164 *\li 'zone' to be a valid zone.
165 *\li 'serialp' to be non NULL
169 *\li #DNS_R_NOTLOADED zone DB is not loaded
173 dns_zone_settype(dns_zone_t *zone, dns_zonetype_t type);
175 * Sets the zone type. This operation can only be performed once on
179 *\li 'zone' to be a valid zone.
180 *\li dns_zone_settype() not to have been called since the zone was
182 *\li 'type' != dns_zone_none
186 dns_zone_setview(dns_zone_t *zone, dns_view_t *view);
188 * Associate the zone with a view.
191 *\li 'zone' to be a valid zone.
195 dns_zone_getview(dns_zone_t *zone);
197 * Returns the zone's associated view.
200 *\li 'zone' to be a valid zone.
204 dns_zone_setorigin(dns_zone_t *zone, const dns_name_t *origin);
206 * Sets the zones origin to 'origin'.
209 *\li 'zone' to be a valid zone.
210 *\li 'origin' to be non NULL.
218 dns_zone_getorigin(dns_zone_t *zone);
220 * Returns the value of the origin.
223 *\li 'zone' to be a valid zone.
227 dns_zone_setfile(dns_zone_t *zone, const char *file);
230 dns_zone_setfile2(dns_zone_t *zone, const char *file,
231 dns_masterformat_t format);
233 * Sets the name of the master file in the format of 'format' from which
234 * the zone loads its database to 'file'.
236 * For zones that have no associated master file, 'file' will be NULL.
238 * For zones with persistent databases, the file name
239 * setting is ignored.
241 * dns_zone_setfile() is a backward-compatible form of
242 * dns_zone_setfile2(), which always specifies the
243 * dns_masterformat_text (RFC1035) format.
246 *\li 'zone' to be a valid zone.
254 dns_zone_getfile(dns_zone_t *zone);
256 * Gets the name of the zone's master file, if any.
259 *\li 'zone' to be valid initialised zone.
262 *\li Pointer to null-terminated file name, or NULL.
266 dns_zone_load(dns_zone_t *zone);
269 dns_zone_loadnew(dns_zone_t *zone);
272 dns_zone_loadandthaw(dns_zone_t *zone);
274 * Cause the database to be loaded from its backing store.
275 * Confirm that the minimum requirements for the zone type are
276 * met, otherwise DNS_R_BADZONE is returned.
278 * dns_zone_loadnew() only loads zones that are not yet loaded.
279 * dns_zone_load() also loads zones that are already loaded and
280 * and whose master file has changed since the last load.
281 * dns_zone_loadandthaw() is similar to dns_zone_load() but will
282 * also re-enable DNS UPDATEs when the load completes.
285 *\li 'zone' to be a valid zone.
288 *\li #ISC_R_UNEXPECTED
290 *\li DNS_R_CONTINUE Incremental load has been queued.
291 *\li DNS_R_UPTODATE The zone has already been loaded based on
292 * file system timestamps.
294 *\li Any result value from dns_db_load().
298 dns_zone_attach(dns_zone_t *source, dns_zone_t **target);
300 * Attach '*target' to 'source' incrementing its external
304 *\li 'zone' to be a valid zone.
305 *\li 'target' to be non NULL and '*target' to be NULL.
309 dns_zone_detach(dns_zone_t **zonep);
311 * Detach from a zone decrementing its external reference count.
312 * If this was the last external reference to the zone it will be
313 * shut down and eventually freed.
316 *\li 'zonep' to point to a valid zone.
320 dns_zone_iattach(dns_zone_t *source, dns_zone_t **target);
322 * Attach '*target' to 'source' incrementing its internal
323 * reference count. This is intended for use by operations
324 * such as zone transfers that need to prevent the zone
325 * object from being freed but not from shutting down.
328 *\li The caller is running in the context of the zone's task.
329 *\li 'zone' to be a valid zone.
330 *\li 'target' to be non NULL and '*target' to be NULL.
334 dns_zone_idetach(dns_zone_t **zonep);
336 * Detach from a zone decrementing its internal reference count.
337 * If there are no more internal or external references to the
338 * zone, it will be freed.
341 *\li The caller is running in the context of the zone's task.
342 *\li 'zonep' to point to a valid zone.
346 dns_zone_setflag(dns_zone_t *zone, unsigned int flags, isc_boolean_t value);
348 * Sets ('value' == 'ISC_TRUE') / clears ('value' == 'IS_FALSE')
349 * zone flags. Valid flag bits are DNS_ZONE_F_*.
352 *\li 'zone' to be a valid zone.
356 dns_zone_getdb(dns_zone_t *zone, dns_db_t **dbp);
358 * Attach '*dbp' to the database to if it exists otherwise
359 * return DNS_R_NOTLOADED.
362 *\li 'zone' to be a valid zone.
363 *\li 'dbp' to be != NULL && '*dbp' == NULL.
371 dns_zone_setdbtype(dns_zone_t *zone,
372 unsigned int dbargc, const char * const *dbargv);
374 * Sets the database type to dbargv[0] and database arguments
375 * to subsequent dbargv elements.
376 * 'db_type' is not checked to see if it is a valid database type.
379 *\li 'zone' to be a valid zone.
380 *\li 'database' to be non NULL.
381 *\li 'dbargc' to be >= 1
382 *\li 'dbargv' to point to dbargc NULL-terminated strings
390 dns_zone_getdbtype(dns_zone_t *zone, char ***argv, isc_mem_t *mctx);
392 * Returns the current dbtype. isc_mem_free() should be used
393 * to free 'argv' after use.
396 *\li 'zone' to be a valid zone.
397 *\li 'argv' to be non NULL and *argv to be NULL.
398 *\li 'mctx' to be valid.
406 dns_zone_markdirty(dns_zone_t *zone);
408 * Mark a zone as 'dirty'.
411 *\li 'zone' to be a valid zone.
415 dns_zone_expire(dns_zone_t *zone);
417 * Mark the zone as expired. If the zone requires dumping cause it to
418 * be initiated. Set the refresh and retry intervals to there default
419 * values and unload the zone.
422 *\li 'zone' to be a valid zone.
426 dns_zone_refresh(dns_zone_t *zone);
428 * Initiate zone up to date checks. The zone must already be being
432 *\li 'zone' to be a valid zone.
436 dns_zone_flush(dns_zone_t *zone);
438 * Write the zone to database if there are uncommitted changes.
441 *\li 'zone' to be a valid zone.
445 dns_zone_dump(dns_zone_t *zone);
447 * Write the zone to database.
450 *\li 'zone' to be a valid zone.
454 dns_zone_dumptostream(dns_zone_t *zone, FILE *fd);
457 dns_zone_dumptostream2(dns_zone_t *zone, FILE *fd, dns_masterformat_t format,
458 const dns_master_style_t *style);
460 * Write the zone to stream 'fd' in the specified 'format'.
461 * If the 'format' is dns_masterformat_text (RFC1035), 'style' also
462 * specifies the file style (e.g., &dns_master_style_default).
464 * dns_zone_dumptostream() is a backward-compatible form of
465 * dns_zone_dumptostream2(), which always uses the dns_masterformat_text
466 * format and the dns_master_style_default style.
468 * Note that dns_zone_dumptostream2() is the most flexible form. It
469 * can also provide the functionality of dns_zone_fulldumptostream().
472 *\li 'zone' to be a valid zone.
473 *\li 'fd' to be a stream open for writing.
477 dns_zone_fulldumptostream(dns_zone_t *zone, FILE *fd);
479 * The same as dns_zone_dumptostream, but dumps the zone with
480 * different dump settings (dns_master_style_full).
483 *\li 'zone' to be a valid zone.
484 *\li 'fd' to be a stream open for writing.
488 dns_zone_maintenance(dns_zone_t *zone);
490 * Perform regular maintenance on the zone. This is called as a
491 * result of a zone being managed.
494 *\li 'zone' to be a valid zone.
498 dns_zone_setmasters(dns_zone_t *zone, const isc_sockaddr_t *masters,
501 dns_zone_setmasterswithkeys(dns_zone_t *zone,
502 const isc_sockaddr_t *masters,
503 dns_name_t **keynames,
506 * Set the list of master servers for the zone.
509 *\li 'zone' to be a valid zone.
510 *\li 'masters' array of isc_sockaddr_t with port set or NULL.
511 *\li 'count' the number of masters.
512 *\li 'keynames' array of dns_name_t's for tsig keys or NULL.
514 * \li dns_zone_setmasters() is just a wrapper to setmasterswithkeys(),
515 * passing NULL in the keynames field.
517 * \li If 'masters' is NULL then 'count' must be zero.
522 *\li Any result dns_name_dup() can return, if keynames!=NULL
526 dns_zone_setalsonotify(dns_zone_t *zone, const isc_sockaddr_t *notify,
529 * Set the list of additional servers to be notified when
530 * a zone changes. To clear the list use 'count = 0'.
533 *\li 'zone' to be a valid zone.
534 *\li 'notify' to be non-NULL if count != 0.
535 *\li 'count' to be the number of notifiees.
543 dns_zone_unload(dns_zone_t *zone);
545 * detach the database from the zone structure.
548 *\li 'zone' to be a valid zone.
552 dns_zone_setoption(dns_zone_t *zone, unsigned int option, isc_boolean_t value);
554 * Set given options on ('value' == ISC_TRUE) or off ('value' ==
558 *\li 'zone' to be a valid zone.
562 dns_zone_getoptions(dns_zone_t *zone);
564 * Returns the current zone options.
567 *\li 'zone' to be a valid zone.
571 dns_zone_setminrefreshtime(dns_zone_t *zone, isc_uint32_t val);
573 * Set the minimum refresh time.
576 *\li 'zone' is valid.
581 dns_zone_setmaxrefreshtime(dns_zone_t *zone, isc_uint32_t val);
583 * Set the maximum refresh time.
586 *\li 'zone' is valid.
591 dns_zone_setminretrytime(dns_zone_t *zone, isc_uint32_t val);
593 * Set the minimum retry time.
596 *\li 'zone' is valid.
601 dns_zone_setmaxretrytime(dns_zone_t *zone, isc_uint32_t val);
603 * Set the maximum retry time.
606 *\li 'zone' is valid.
611 dns_zone_setxfrsource4(dns_zone_t *zone, const isc_sockaddr_t *xfrsource);
613 dns_zone_setaltxfrsource4(dns_zone_t *zone,
614 const isc_sockaddr_t *xfrsource);
616 * Set the source address to be used in IPv4 zone transfers.
619 *\li 'zone' to be a valid zone.
620 *\li 'xfrsource' to contain the address.
627 dns_zone_getxfrsource4(dns_zone_t *zone);
629 dns_zone_getaltxfrsource4(dns_zone_t *zone);
631 * Returns the source address set by a previous dns_zone_setxfrsource4
632 * call, or the default of inaddr_any, port 0.
635 *\li 'zone' to be a valid zone.
639 dns_zone_setxfrsource6(dns_zone_t *zone, const isc_sockaddr_t *xfrsource);
641 dns_zone_setaltxfrsource6(dns_zone_t *zone,
642 const isc_sockaddr_t *xfrsource);
644 * Set the source address to be used in IPv6 zone transfers.
647 *\li 'zone' to be a valid zone.
648 *\li 'xfrsource' to contain the address.
655 dns_zone_getxfrsource6(dns_zone_t *zone);
657 dns_zone_getaltxfrsource6(dns_zone_t *zone);
659 * Returns the source address set by a previous dns_zone_setxfrsource6
660 * call, or the default of in6addr_any, port 0.
663 *\li 'zone' to be a valid zone.
667 dns_zone_setnotifysrc4(dns_zone_t *zone, const isc_sockaddr_t *notifysrc);
669 * Set the source address to be used with IPv4 NOTIFY messages.
672 *\li 'zone' to be a valid zone.
673 *\li 'notifysrc' to contain the address.
680 dns_zone_getnotifysrc4(dns_zone_t *zone);
682 * Returns the source address set by a previous dns_zone_setnotifysrc4
683 * call, or the default of inaddr_any, port 0.
686 *\li 'zone' to be a valid zone.
690 dns_zone_setnotifysrc6(dns_zone_t *zone, const isc_sockaddr_t *notifysrc);
692 * Set the source address to be used with IPv6 NOTIFY messages.
695 *\li 'zone' to be a valid zone.
696 *\li 'notifysrc' to contain the address.
703 dns_zone_getnotifysrc6(dns_zone_t *zone);
705 * Returns the source address set by a previous dns_zone_setnotifysrc6
706 * call, or the default of in6addr_any, port 0.
709 *\li 'zone' to be a valid zone.
713 dns_zone_setnotifyacl(dns_zone_t *zone, dns_acl_t *acl);
715 * Sets the notify acl list for the zone.
718 *\li 'zone' to be a valid zone.
719 *\li 'acl' to be a valid acl.
723 dns_zone_setqueryacl(dns_zone_t *zone, dns_acl_t *acl);
725 * Sets the query acl list for the zone.
728 *\li 'zone' to be a valid zone.
729 *\li 'acl' to be a valid acl.
733 dns_zone_setqueryonacl(dns_zone_t *zone, dns_acl_t *acl);
735 * Sets the query-on acl list for the zone.
738 *\li 'zone' to be a valid zone.
739 *\li 'acl' to be a valid acl.
743 dns_zone_setupdateacl(dns_zone_t *zone, dns_acl_t *acl);
745 * Sets the update acl list for the zone.
748 *\li 'zone' to be a valid zone.
749 *\li 'acl' to be valid acl.
753 dns_zone_setforwardacl(dns_zone_t *zone, dns_acl_t *acl);
755 * Sets the forward unsigned updates acl list for the zone.
758 *\li 'zone' to be a valid zone.
759 *\li 'acl' to be valid acl.
763 dns_zone_setxfracl(dns_zone_t *zone, dns_acl_t *acl);
765 * Sets the transfer acl list for the zone.
768 *\li 'zone' to be a valid zone.
769 *\li 'acl' to be valid acl.
773 dns_zone_getnotifyacl(dns_zone_t *zone);
775 * Returns the current notify acl or NULL.
778 *\li 'zone' to be a valid zone.
781 *\li acl a pointer to the acl.
786 dns_zone_getqueryacl(dns_zone_t *zone);
788 * Returns the current query acl or NULL.
791 *\li 'zone' to be a valid zone.
794 *\li acl a pointer to the acl.
799 dns_zone_getqueryonacl(dns_zone_t *zone);
801 * Returns the current query-on acl or NULL.
804 *\li 'zone' to be a valid zone.
807 *\li acl a pointer to the acl.
812 dns_zone_getupdateacl(dns_zone_t *zone);
814 * Returns the current update acl or NULL.
817 *\li 'zone' to be a valid zone.
820 *\li acl a pointer to the acl.
825 dns_zone_getforwardacl(dns_zone_t *zone);
827 * Returns the current forward unsigned updates acl or NULL.
830 *\li 'zone' to be a valid zone.
833 *\li acl a pointer to the acl.
838 dns_zone_getxfracl(dns_zone_t *zone);
840 * Returns the current transfer acl or NULL.
843 *\li 'zone' to be a valid zone.
846 *\li acl a pointer to the acl.
851 dns_zone_clearupdateacl(dns_zone_t *zone);
853 * Clear the current update acl.
856 *\li 'zone' to be a valid zone.
860 dns_zone_clearforwardacl(dns_zone_t *zone);
862 * Clear the current forward unsigned updates acl.
865 *\li 'zone' to be a valid zone.
869 dns_zone_clearnotifyacl(dns_zone_t *zone);
871 * Clear the current notify acl.
874 *\li 'zone' to be a valid zone.
878 dns_zone_clearqueryacl(dns_zone_t *zone);
880 * Clear the current query acl.
883 *\li 'zone' to be a valid zone.
887 dns_zone_clearqueryonacl(dns_zone_t *zone);
889 * Clear the current query-on acl.
892 *\li 'zone' to be a valid zone.
896 dns_zone_clearxfracl(dns_zone_t *zone);
898 * Clear the current transfer acl.
901 *\li 'zone' to be a valid zone.
905 dns_zone_getupdatedisabled(dns_zone_t *zone);
907 * Return update disabled.
908 * Transient unless called when running in isc_task_exclusive() mode.
912 dns_zone_setupdatedisabled(dns_zone_t *zone, isc_boolean_t state);
914 * Set update disabled.
915 * Should only be called only when running in isc_task_exclusive() mode.
916 * Failure to do so may result in updates being committed after the
917 * call has been made.
921 dns_zone_getzeronosoattl(dns_zone_t *zone);
923 * Return zero-no-soa-ttl status.
927 dns_zone_setzeronosoattl(dns_zone_t *zone, isc_boolean_t state);
929 * Set zero-no-soa-ttl status.
933 dns_zone_setchecknames(dns_zone_t *zone, dns_severity_t severity);
935 * Set the severity of name checking when loading a zone.
938 * \li 'zone' to be a valid zone.
942 dns_zone_getchecknames(dns_zone_t *zone);
944 * Return the current severity of name checking.
947 *\li 'zone' to be a valid zone.
951 dns_zone_setjournalsize(dns_zone_t *zone, isc_int32_t size);
953 * Sets the journal size for the zone.
956 *\li 'zone' to be a valid zone.
960 dns_zone_getjournalsize(dns_zone_t *zone);
962 * Return the journal size as set with a previous call to
963 * dns_zone_setjournalsize().
966 *\li 'zone' to be a valid zone.
970 dns_zone_notifyreceive(dns_zone_t *zone, isc_sockaddr_t *from,
973 * Tell the zone that it has received a NOTIFY message from another
974 * server. This may cause some zone maintenance activity to occur.
977 *\li 'zone' to be a valid zone.
978 *\li '*from' to contain the address of the server from which 'msg'
980 *\li 'msg' a message with opcode NOTIFY and qr clear.
990 dns_zone_setmaxxfrin(dns_zone_t *zone, isc_uint32_t maxxfrin);
992 * Set the maximum time (in seconds) that a zone transfer in (AXFR/IXFR)
993 * of this zone will use before being aborted.
996 * \li 'zone' to be valid initialised zone.
1000 dns_zone_getmaxxfrin(dns_zone_t *zone);
1002 * Returns the maximum transfer time for this zone. This will be
1003 * either the value set by the last call to dns_zone_setmaxxfrin() or
1004 * the default value of 1 hour.
1007 *\li 'zone' to be valid initialised zone.
1011 dns_zone_setmaxxfrout(dns_zone_t *zone, isc_uint32_t maxxfrout);
1013 * Set the maximum time (in seconds) that a zone transfer out (AXFR/IXFR)
1014 * of this zone will use before being aborted.
1017 * \li 'zone' to be valid initialised zone.
1021 dns_zone_getmaxxfrout(dns_zone_t *zone);
1023 * Returns the maximum transfer time for this zone. This will be
1024 * either the value set by the last call to dns_zone_setmaxxfrout() or
1025 * the default value of 1 hour.
1028 *\li 'zone' to be valid initialised zone.
1032 dns_zone_setjournal(dns_zone_t *zone, const char *journal);
1034 * Sets the filename used for journaling updates / IXFR transfers.
1035 * The default journal name is set by dns_zone_setfile() to be
1036 * "file.jnl". If 'journal' is NULL, the zone will have no
1040 *\li 'zone' to be a valid zone.
1044 *\li #ISC_R_NOMEMORY
1048 dns_zone_getjournal(dns_zone_t *zone);
1050 * Returns the journal name associated with this zone.
1051 * If no journal has been set this will be NULL.
1054 *\li 'zone' to be valid initialised zone.
1058 dns_zone_gettype(dns_zone_t *zone);
1060 * Returns the type of the zone (master/slave/etc.)
1063 *\li 'zone' to be valid initialised zone.
1067 dns_zone_settask(dns_zone_t *zone, isc_task_t *task);
1069 * Give a zone a task to work with. Any current task will be detached.
1072 *\li 'zone' to be valid.
1073 *\li 'task' to be valid.
1077 dns_zone_gettask(dns_zone_t *zone, isc_task_t **target);
1079 * Attach '*target' to the zone's task.
1082 *\li 'zone' to be valid initialised zone.
1083 *\li 'zone' to have a task.
1084 *\li 'target' to be != NULL && '*target' == NULL.
1088 dns_zone_notify(dns_zone_t *zone);
1090 * Generate notify events for this zone.
1093 *\li 'zone' to be a valid zone.
1097 dns_zone_replacedb(dns_zone_t *zone, dns_db_t *db, isc_boolean_t dump);
1099 * Replace the database of "zone" with a new database "db".
1101 * If "dump" is ISC_TRUE, then the new zone contents are dumped
1102 * into to the zone's master file for persistence. When replacing
1103 * a zone database by one just loaded from a master file, set
1104 * "dump" to ISC_FALSE to avoid a redundant redump of the data just
1105 * loaded. Otherwise, it should be set to ISC_TRUE.
1107 * If the "diff-on-reload" option is enabled in the configuration file,
1108 * the differences between the old and the new database are added to the
1109 * journal file, and the master file dump is postponed.
1112 * \li 'zone' to be a valid zone.
1116 * \li DNS_R_BADZONE zone failed basic consistency checks:
1117 * * a single SOA must exist
1118 * * some NS records must exist.
1123 dns_zone_getidlein(dns_zone_t *zone);
1126 * \li 'zone' to be a valid zone.
1129 * \li number of seconds of idle time before we abort the transfer in.
1133 dns_zone_setidlein(dns_zone_t *zone, isc_uint32_t idlein);
1135 * \li Set the idle timeout for transfer the.
1136 * \li Zero set the default value, 1 hour.
1139 * \li 'zone' to be a valid zone.
1143 dns_zone_getidleout(dns_zone_t *zone);
1147 * \li 'zone' to be a valid zone.
1150 * \li number of seconds of idle time before we abort a transfer out.
1154 dns_zone_setidleout(dns_zone_t *zone, isc_uint32_t idleout);
1156 * \li Set the idle timeout for transfers out.
1157 * \li Zero set the default value, 1 hour.
1160 * \li 'zone' to be a valid zone.
1164 dns_zone_getssutable(dns_zone_t *zone, dns_ssutable_t **table);
1166 * Get the simple-secure-update policy table.
1169 * \li 'zone' to be a valid zone.
1173 dns_zone_setssutable(dns_zone_t *zone, dns_ssutable_t *table);
1175 * Set / clear the simple-secure-update policy table.
1178 * \li 'zone' to be a valid zone.
1182 dns_zone_getmctx(dns_zone_t *zone);
1184 * Get the memory context of a zone.
1187 * \li 'zone' to be a valid zone.
1191 dns_zone_getmgr(dns_zone_t *zone);
1193 * If 'zone' is managed return the zone manager otherwise NULL.
1196 * \li 'zone' to be a valid zone.
1200 dns_zone_setsigvalidityinterval(dns_zone_t *zone, isc_uint32_t interval);
1202 * Set the zone's RRSIG validity interval. This is the length of time
1203 * for which DNSSEC signatures created as a result of dynamic updates
1204 * to secure zones will remain valid, in seconds.
1207 * \li 'zone' to be a valid zone.
1211 dns_zone_getsigvalidityinterval(dns_zone_t *zone);
1213 * Get the zone's RRSIG validity interval.
1216 * \li 'zone' to be a valid zone.
1220 dns_zone_setsigresigninginterval(dns_zone_t *zone, isc_uint32_t interval);
1222 * Set the zone's RRSIG re-signing interval. A dynamic zone's RRSIG's
1223 * will be re-signed 'interval' amount of time before they expire.
1226 * \li 'zone' to be a valid zone.
1230 dns_zone_getsigresigninginterval(dns_zone_t *zone);
1232 * Get the zone's RRSIG re-signing interval.
1235 * \li 'zone' to be a valid zone.
1239 dns_zone_setnotifytype(dns_zone_t *zone, dns_notifytype_t notifytype);
1241 * Sets zone notify method to "notifytype"
1245 dns_zone_forwardupdate(dns_zone_t *zone, dns_message_t *msg,
1246 dns_updatecallback_t callback, void *callback_arg);
1248 * Forward 'msg' to each master in turn until we get an answer or we
1249 * have exhausted the list of masters. 'callback' will be called with
1250 * ISC_R_SUCCESS if we get an answer and the returned message will be
1251 * passed as 'answer_message', otherwise a non ISC_R_SUCCESS result code
1252 * will be passed and answer_message will be NULL. The callback function
1253 * is responsible for destroying 'answer_message'.
1254 * (callback)(callback_arg, result, answer_message);
1257 *\li 'zone' to be valid
1258 *\li 'msg' to be valid.
1259 *\li 'callback' to be non NULL.
1261 *\li #ISC_R_SUCCESS if the message has been forwarded,
1262 *\li #ISC_R_NOMEMORY
1267 dns_zone_next(dns_zone_t *zone, dns_zone_t **next);
1269 * Find the next zone in the list of managed zones.
1272 *\li 'zone' to be valid
1273 *\li The zone manager for the indicated zone MUST be locked
1274 * by the caller. This is not checked.
1275 *\li 'next' be non-NULL, and '*next' be NULL.
1278 *\li 'next' points to a valid zone (result ISC_R_SUCCESS) or to NULL
1279 * (result ISC_R_NOMORE).
1285 dns_zone_first(dns_zonemgr_t *zmgr, dns_zone_t **first);
1287 * Find the first zone in the list of managed zones.
1290 *\li 'zonemgr' to be valid
1291 *\li The zone manager for the indicated zone MUST be locked
1292 * by the caller. This is not checked.
1293 *\li 'first' be non-NULL, and '*first' be NULL
1296 *\li 'first' points to a valid zone (result ISC_R_SUCCESS) or to NULL
1297 * (result ISC_R_NOMORE).
1301 dns_zone_setkeydirectory(dns_zone_t *zone, const char *directory);
1303 * Sets the name of the directory where private keys used for
1304 * online signing of dynamic zones are found.
1307 *\li 'zone' to be a valid zone.
1310 *\li #ISC_R_NOMEMORY
1315 dns_zone_getkeydirectory(dns_zone_t *zone);
1317 * Gets the name of the directory where private keys used for
1318 * online signing of dynamic zones are found.
1321 *\li 'zone' to be valid initialised zone.
1324 * Pointer to null-terminated file name, or NULL.
1329 dns_zonemgr_create(isc_mem_t *mctx, isc_taskmgr_t *taskmgr,
1330 isc_timermgr_t *timermgr, isc_socketmgr_t *socketmgr,
1331 dns_zonemgr_t **zmgrp);
1333 * Create a zone manager.
1336 *\li 'mctx' to be a valid memory context.
1337 *\li 'taskmgr' to be a valid task manager.
1338 *\li 'timermgr' to be a valid timer manager.
1339 *\li 'zmgrp' to point to a NULL pointer.
1343 dns_zonemgr_managezone(dns_zonemgr_t *zmgr, dns_zone_t *zone);
1345 * Bring the zone under control of a zone manager.
1348 *\li 'zmgr' to be a valid zone manager.
1349 *\li 'zone' to be a valid zone.
1353 dns_zonemgr_forcemaint(dns_zonemgr_t *zmgr);
1355 * Force zone maintenance of all zones managed by 'zmgr' at its
1356 * earliest convenience.
1360 dns_zonemgr_resumexfrs(dns_zonemgr_t *zmgr);
1362 * Attempt to start any stalled zone transfers.
1366 dns_zonemgr_shutdown(dns_zonemgr_t *zmgr);
1368 * Shut down the zone manager.
1371 *\li 'zmgr' to be a valid zone manager.
1375 dns_zonemgr_attach(dns_zonemgr_t *source, dns_zonemgr_t **target);
1377 * Attach '*target' to 'source' incrementing its external
1381 *\li 'zone' to be a valid zone.
1382 *\li 'target' to be non NULL and '*target' to be NULL.
1386 dns_zonemgr_detach(dns_zonemgr_t **zmgrp);
1388 * Detach from a zone manager.
1391 *\li '*zmgrp' is a valid, non-NULL zone manager pointer.
1394 *\li '*zmgrp' is NULL.
1398 dns_zonemgr_releasezone(dns_zonemgr_t *zmgr, dns_zone_t *zone);
1400 * Release 'zone' from the managed by 'zmgr'. 'zmgr' is implicitly
1401 * detached from 'zone'.
1404 *\li 'zmgr' to be a valid zone manager.
1405 *\li 'zone' to be a valid zone.
1406 *\li 'zmgr' == 'zone->zmgr'
1409 *\li 'zone->zmgr' == NULL;
1413 dns_zonemgr_settransfersin(dns_zonemgr_t *zmgr, isc_uint32_t value);
1415 * Set the maximum number of simultaneous transfers in allowed by
1419 *\li 'zmgr' to be a valid zone manager.
1423 dns_zonemgr_getttransfersin(dns_zonemgr_t *zmgr);
1425 * Return the maximum number of simultaneous transfers in allowed.
1428 *\li 'zmgr' to be a valid zone manager.
1432 dns_zonemgr_settransfersperns(dns_zonemgr_t *zmgr, isc_uint32_t value);
1434 * Set the number of zone transfers allowed per nameserver.
1437 *\li 'zmgr' to be a valid zone manager
1441 dns_zonemgr_getttransfersperns(dns_zonemgr_t *zmgr);
1443 * Return the number of transfers allowed per nameserver.
1446 *\li 'zmgr' to be a valid zone manager.
1450 dns_zonemgr_setiolimit(dns_zonemgr_t *zmgr, isc_uint32_t iolimit);
1452 * Set the number of simultaneous file descriptors available for
1453 * reading and writing masterfiles.
1456 *\li 'zmgr' to be a valid zone manager.
1457 *\li 'iolimit' to be positive.
1461 dns_zonemgr_getiolimit(dns_zonemgr_t *zmgr);
1463 * Get the number of simultaneous file descriptors available for
1464 * reading and writing masterfiles.
1467 *\li 'zmgr' to be a valid zone manager.
1471 dns_zonemgr_setserialqueryrate(dns_zonemgr_t *zmgr, unsigned int value);
1473 * Set the number of SOA queries sent per second.
1476 *\li 'zmgr' to be a valid zone manager
1480 dns_zonemgr_getserialqueryrate(dns_zonemgr_t *zmgr);
1482 * Return the number of SOA queries sent per second.
1485 *\li 'zmgr' to be a valid zone manager.
1489 dns_zonemgr_getcount(dns_zonemgr_t *zmgr, int state);
1491 * Returns the number of zones in the specified state.
1494 *\li 'zmgr' to be a valid zone manager.
1495 *\li 'state' to be a valid DNS_ZONESTATE_ constant.
1499 dns_zonemgr_unreachableadd(dns_zonemgr_t *zmgr, isc_sockaddr_t *remote,
1500 isc_sockaddr_t *local, isc_time_t *now);
1502 * Add the pair of addresses to the unreachable cache.
1505 *\li 'zmgr' to be a valid zone manager.
1506 *\li 'remote' to be a valid sockaddr.
1507 *\li 'local' to be a valid sockaddr.
1511 dns_zone_forcereload(dns_zone_t *zone);
1513 * Force a reload of specified zone.
1516 *\li 'zone' to be a valid zone.
1520 dns_zone_isforced(dns_zone_t *zone);
1522 * Check if the zone is waiting a forced reload.
1525 * \li 'zone' to be a valid zone.
1529 dns_zone_setstatistics(dns_zone_t *zone, isc_boolean_t on);
1531 * This function is obsoleted by dns_zone_setrequeststats().
1535 dns_zone_getstatscounters(dns_zone_t *zone);
1537 * This function is obsoleted by dns_zone_getrequeststats().
1541 dns_zone_setstats(dns_zone_t *zone, isc_stats_t *stats);
1543 * Set a general zone-maintenance statistics set 'stats' for 'zone'. This
1544 * function is expected to be called only on zone creation (when necessary).
1545 * Once installed, it cannot be removed or replaced. Also, there is no
1546 * interface to get the installed stats from the zone; the caller must keep the
1547 * stats to reference (e.g. dump) it later.
1550 * \li 'zone' to be a valid zone and does not have a statistics set already
1553 *\li stats is a valid statistics supporting zone statistics counters
1554 * (see dns/stats.h).
1558 dns_zone_setrequeststats(dns_zone_t *zone, isc_stats_t *stats);
1560 * Set an additional statistics set to zone. It is attached in the zone
1561 * but is not counted in the zone module; only the caller updates the counters.
1564 * \li 'zone' to be a valid zone.
1566 *\li stats is a valid statistics.
1570 dns_zone_getrequeststats(dns_zone_t *zone);
1572 * Get the additional statistics for zone, if one is installed.
1575 * \li 'zone' to be a valid zone.
1578 * \li when available, a pointer to the statistics set installed in zone;
1583 dns_zone_dialup(dns_zone_t *zone);
1585 * Perform dialup-time maintenance on 'zone'.
1589 dns_zone_setdialup(dns_zone_t *zone, dns_dialuptype_t dialup);
1591 * Set the dialup type of 'zone' to 'dialup'.
1594 * \li 'zone' to be valid initialised zone.
1595 *\li 'dialup' to be a valid dialup type.
1599 dns_zone_log(dns_zone_t *zone, int level, const char *msg, ...)
1600 ISC_FORMAT_PRINTF(3, 4);
1602 * Log the message 'msg...' at 'level', including text that identifies
1603 * the message as applying to 'zone'.
1607 dns_zone_logc(dns_zone_t *zone, isc_logcategory_t *category, int level,
1608 const char *msg, ...) ISC_FORMAT_PRINTF(4, 5);
1610 * Log the message 'msg...' at 'level', including text that identifies
1611 * the message as applying to 'zone'.
1615 dns_zone_name(dns_zone_t *zone, char *buf, size_t len);
1617 * Return the name of the zone with class and view.
1620 *\li 'zone' to be valid.
1621 *\li 'buf' to be non NULL.
1625 dns_zone_checknames(dns_zone_t *zone, dns_name_t *name, dns_rdata_t *rdata);
1627 * Check if this record meets the check-names policy.
1630 * 'zone' to be valid.
1631 * 'name' to be valid.
1632 * 'rdata' to be valid.
1635 * DNS_R_SUCCESS passed checks.
1636 * DNS_R_BADOWNERNAME failed ownername checks.
1637 * DNS_R_BADNAME failed rdata checks.
1641 dns_zone_setacache(dns_zone_t *zone, dns_acache_t *acache);
1643 * Associate the zone with an additional cache.
1646 * 'zone' to be a valid zone.
1647 * 'acache' to be a non NULL pointer.
1650 * 'zone' will have a reference to 'acache'
1654 dns_zone_setcheckmx(dns_zone_t *zone, dns_checkmxfunc_t checkmx);
1656 * Set the post load integrity callback function 'checkmx'.
1657 * 'checkmx' will be called if the MX is not within the zone.
1660 * 'zone' to be a valid zone.
1664 dns_zone_setchecksrv(dns_zone_t *zone, dns_checkmxfunc_t checksrv);
1666 * Set the post load integrity callback function 'checksrv'.
1667 * 'checksrv' will be called if the SRV TARGET is not within the zone.
1670 * 'zone' to be a valid zone.
1674 dns_zone_setcheckns(dns_zone_t *zone, dns_checknsfunc_t checkns);
1676 * Set the post load integrity callback function 'checkmx'.
1677 * 'checkmx' will be called if the MX is not within the zone.
1680 * 'zone' to be a valid zone.
1684 dns_zone_setnotifydelay(dns_zone_t *zone, isc_uint32_t delay);
1686 * Set the minimum delay between sets of notify messages.
1689 * 'zone' to be valid.
1693 dns_zone_getnotifydelay(dns_zone_t *zone);
1695 * Get the minimum delay between sets of notify messages.
1698 * 'zone' to be valid.
1702 dns_zone_setisself(dns_zone_t *zone, dns_isselffunc_t isself, void *arg);
1704 * Set the isself callback function and argument.
1707 * isself(dns_view_t *myview, dns_tsigkey_t *mykey, isc_netaddr_t *srcaddr,
1708 * isc_netaddr_t *destaddr, dns_rdataclass_t rdclass, void *arg);
1710 * 'isself' returns ISC_TRUE if a non-recursive query from 'srcaddr' to
1711 * 'destaddr' with optional key 'mykey' for class 'rdclass' would be
1712 * delivered to 'myview'.
1716 dns_zone_setnodes(dns_zone_t *zone, isc_uint32_t nodes);
1718 * Set the number of nodes that will be checked per quantum.
1722 dns_zone_setsignatures(dns_zone_t *zone, isc_uint32_t signatures);
1724 * Set the number of signatures that will be generated per quantum.
1728 dns_zone_signwithkey(dns_zone_t *zone, dns_secalg_t algorithm,
1729 isc_uint16_t keyid, isc_boolean_t delete);
1731 * Initiate/resume signing of the entire zone with the zone DNSKEY(s)
1732 * that match the given algorithm and keyid.
1736 dns_zone_addnsec3chain(dns_zone_t *zone, dns_rdata_nsec3param_t *nsec3param);
1738 * Incrementally add a NSEC3 chain that corresponds to 'nsec3param'.
1742 dns_zone_setprivatetype(dns_zone_t *zone, dns_rdatatype_t type);
1744 dns_zone_getprivatetype(dns_zone_t *zone);
1746 * Get/Set the private record type. It is expected that these interfaces
1747 * will not be permanent.
1752 #endif /* DNS_ZONE_H */