2 * Copyright (C) 2004-2013 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.
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>
38 #include <dns/types.h>
50 #define DNS_ZONEOPT_SERVERS 0x00000001U /*%< perform server checks */
51 #define DNS_ZONEOPT_PARENTS 0x00000002U /*%< perform parent checks */
52 #define DNS_ZONEOPT_CHILDREN 0x00000004U /*%< perform child checks */
53 #define DNS_ZONEOPT_NOTIFY 0x00000008U /*%< perform NOTIFY */
54 #define DNS_ZONEOPT_MANYERRORS 0x00000010U /*%< return many errors on load */
55 #define DNS_ZONEOPT_IXFRFROMDIFFS 0x00000020U /*%< calculate differences */
56 #define DNS_ZONEOPT_NOMERGE 0x00000040U /*%< don't merge journal */
57 #define DNS_ZONEOPT_CHECKNS 0x00000080U /*%< check if NS's are addresses */
58 #define DNS_ZONEOPT_FATALNS 0x00000100U /*%< DNS_ZONEOPT_CHECKNS is fatal */
59 #define DNS_ZONEOPT_MULTIMASTER 0x00000200U /*%< this zone has multiple masters */
60 #define DNS_ZONEOPT_USEALTXFRSRC 0x00000400U /*%< use alternate transfer sources */
61 #define DNS_ZONEOPT_CHECKNAMES 0x00000800U /*%< check-names */
62 #define DNS_ZONEOPT_CHECKNAMESFAIL 0x00001000U /*%< fatal check-name failures */
63 #define DNS_ZONEOPT_CHECKWILDCARD 0x00002000U /*%< check for internal wildcards */
64 #define DNS_ZONEOPT_CHECKMX 0x00004000U /*%< check-mx */
65 #define DNS_ZONEOPT_CHECKMXFAIL 0x00008000U /*%< fatal check-mx failures */
66 #define DNS_ZONEOPT_CHECKINTEGRITY 0x00010000U /*%< perform integrity checks */
67 #define DNS_ZONEOPT_CHECKSIBLING 0x00020000U /*%< perform sibling glue checks */
68 #define DNS_ZONEOPT_NOCHECKNS 0x00040000U /*%< disable IN NS address checks */
69 #define DNS_ZONEOPT_WARNMXCNAME 0x00080000U /*%< warn on MX CNAME check */
70 #define DNS_ZONEOPT_IGNOREMXCNAME 0x00100000U /*%< ignore MX CNAME check */
71 #define DNS_ZONEOPT_WARNSRVCNAME 0x00200000U /*%< warn on SRV CNAME check */
72 #define DNS_ZONEOPT_IGNORESRVCNAME 0x00400000U /*%< ignore SRV CNAME check */
73 #define DNS_ZONEOPT_UPDATECHECKKSK 0x00800000U /*%< check dnskey KSK flag */
74 #define DNS_ZONEOPT_TRYTCPREFRESH 0x01000000U /*%< try tcp refresh on udp failure */
75 #define DNS_ZONEOPT_NOTIFYTOSOA 0x02000000U /*%< Notify the SOA MNAME */
76 #define DNS_ZONEOPT_NSEC3TESTZONE 0x04000000U /*%< nsec3-test-zone */
77 #define DNS_ZONEOPT_SECURETOINSECURE 0x08000000U /*%< dnssec-secure-to-insecure */
78 #define DNS_ZONEOPT_DNSKEYKSKONLY 0x10000000U /*%< dnssec-dnskey-kskonly */
79 #define DNS_ZONEOPT_CHECKDUPRR 0x20000000U /*%< check-dup-records */
80 #define DNS_ZONEOPT_CHECKDUPRRFAIL 0x40000000U /*%< fatal check-dup-records failures */
81 #define DNS_ZONEOPT_CHECKSPF 0x80000000U /*%< check SPF records */
83 #ifndef NOMINUM_PUBLIC
85 * Nominum specific options build down.
87 #define DNS_ZONEOPT_NOTIFYFORWARD 0x80000000U /* forward notify to master */
88 #endif /* NOMINUM_PUBLIC */
91 * Zone key maintenance options
93 #define DNS_ZONEKEY_ALLOW 0x00000001U /*%< fetch keys on command */
94 #define DNS_ZONEKEY_MAINTAIN 0x00000002U /*%< publish/sign on schedule */
95 #define DNS_ZONEKEY_CREATE 0x00000004U /*%< make keys when needed */
96 #define DNS_ZONEKEY_FULLSIGN 0x00000008U /*%< roll to new keys immediately */
98 #ifndef DNS_ZONE_MINREFRESH
99 #define DNS_ZONE_MINREFRESH 300 /*%< 5 minutes */
101 #ifndef DNS_ZONE_MAXREFRESH
102 #define DNS_ZONE_MAXREFRESH 2419200 /*%< 4 weeks */
104 #ifndef DNS_ZONE_DEFAULTREFRESH
105 #define DNS_ZONE_DEFAULTREFRESH 3600 /*%< 1 hour */
107 #ifndef DNS_ZONE_MINRETRY
108 #define DNS_ZONE_MINRETRY 300 /*%< 5 minutes */
110 #ifndef DNS_ZONE_MAXRETRY
111 #define DNS_ZONE_MAXRETRY 1209600 /*%< 2 weeks */
113 #ifndef DNS_ZONE_DEFAULTRETRY
114 #define DNS_ZONE_DEFAULTRETRY 60 /*%< 1 minute, subject to
115 exponential backoff */
118 #define DNS_ZONESTATE_XFERRUNNING 1
119 #define DNS_ZONESTATE_XFERDEFERRED 2
120 #define DNS_ZONESTATE_SOAQUERY 3
121 #define DNS_ZONESTATE_ANY 4
130 dns_zone_create(dns_zone_t **zonep, isc_mem_t *mctx);
132 * Creates a new empty zone and attach '*zonep' to it.
135 *\li 'zonep' to point to a NULL pointer.
136 *\li 'mctx' to be a valid memory context.
139 *\li '*zonep' refers to a valid zone.
144 *\li #ISC_R_UNEXPECTED
148 dns_zone_setclass(dns_zone_t *zone, dns_rdataclass_t rdclass);
150 * Sets the class of a zone. This operation can only be performed
154 *\li 'zone' to be a valid zone.
155 *\li dns_zone_setclass() not to have been called since the zone was
157 *\li 'rdclass' != dns_rdataclass_none.
161 dns_zone_getclass(dns_zone_t *zone);
163 * Returns the current zone class.
166 *\li 'zone' to be a valid zone.
170 dns_zone_getserial2(dns_zone_t *zone, isc_uint32_t *serialp);
173 dns_zone_getserial(dns_zone_t *zone);
175 * Returns the current serial number of the zone. On success, the SOA
176 * serial of the zone will be copied into '*serialp'.
177 * dns_zone_getserial() cannot catch failure cases and is deprecated by
178 * dns_zone_getserial2().
181 *\li 'zone' to be a valid zone.
182 *\li 'serialp' to be non NULL
186 *\li #DNS_R_NOTLOADED zone DB is not loaded
190 dns_zone_settype(dns_zone_t *zone, dns_zonetype_t type);
192 * Sets the zone type. This operation can only be performed once on
196 *\li 'zone' to be a valid zone.
197 *\li dns_zone_settype() not to have been called since the zone was
199 *\li 'type' != dns_zone_none
203 dns_zone_setview(dns_zone_t *zone, dns_view_t *view);
205 * Associate the zone with a view.
208 *\li 'zone' to be a valid zone.
212 dns_zone_getview(dns_zone_t *zone);
214 * Returns the zone's associated view.
217 *\li 'zone' to be a valid zone.
221 dns_zone_setorigin(dns_zone_t *zone, const dns_name_t *origin);
223 * Sets the zones origin to 'origin'.
226 *\li 'zone' to be a valid zone.
227 *\li 'origin' to be non NULL.
235 dns_zone_getorigin(dns_zone_t *zone);
237 * Returns the value of the origin.
240 *\li 'zone' to be a valid zone.
244 dns_zone_setfile(dns_zone_t *zone, const char *file);
247 dns_zone_setfile2(dns_zone_t *zone, const char *file,
248 dns_masterformat_t format);
250 * Sets the name of the master file in the format of 'format' from which
251 * the zone loads its database to 'file'.
253 * For zones that have no associated master file, 'file' will be NULL.
255 * For zones with persistent databases, the file name
256 * setting is ignored.
258 * dns_zone_setfile() is a backward-compatible form of
259 * dns_zone_setfile2(), which always specifies the
260 * dns_masterformat_text (RFC1035) format.
263 *\li 'zone' to be a valid zone.
271 dns_zone_getfile(dns_zone_t *zone);
273 * Gets the name of the zone's master file, if any.
276 *\li 'zone' to be valid initialised zone.
279 *\li Pointer to null-terminated file name, or NULL.
283 dns_zone_load(dns_zone_t *zone);
286 dns_zone_loadnew(dns_zone_t *zone);
289 dns_zone_loadandthaw(dns_zone_t *zone);
291 * Cause the database to be loaded from its backing store.
292 * Confirm that the minimum requirements for the zone type are
293 * met, otherwise DNS_R_BADZONE is returned.
295 * dns_zone_loadnew() only loads zones that are not yet loaded.
296 * dns_zone_load() also loads zones that are already loaded and
297 * and whose master file has changed since the last load.
298 * dns_zone_loadandthaw() is similar to dns_zone_load() but will
299 * also re-enable DNS UPDATEs when the load completes.
302 *\li 'zone' to be a valid zone.
305 *\li #ISC_R_UNEXPECTED
307 *\li DNS_R_CONTINUE Incremental load has been queued.
308 *\li DNS_R_UPTODATE The zone has already been loaded based on
309 * file system timestamps.
311 *\li Any result value from dns_db_load().
315 dns_zone_attach(dns_zone_t *source, dns_zone_t **target);
317 * Attach '*target' to 'source' incrementing its external
321 *\li 'zone' to be a valid zone.
322 *\li 'target' to be non NULL and '*target' to be NULL.
326 dns_zone_detach(dns_zone_t **zonep);
328 * Detach from a zone decrementing its external reference count.
329 * If this was the last external reference to the zone it will be
330 * shut down and eventually freed.
333 *\li 'zonep' to point to a valid zone.
337 dns_zone_iattach(dns_zone_t *source, dns_zone_t **target);
339 * Attach '*target' to 'source' incrementing its internal
340 * reference count. This is intended for use by operations
341 * such as zone transfers that need to prevent the zone
342 * object from being freed but not from shutting down.
345 *\li The caller is running in the context of the zone's task.
346 *\li 'zone' to be a valid zone.
347 *\li 'target' to be non NULL and '*target' to be NULL.
351 dns_zone_idetach(dns_zone_t **zonep);
353 * Detach from a zone decrementing its internal reference count.
354 * If there are no more internal or external references to the
355 * zone, it will be freed.
358 *\li The caller is running in the context of the zone's task.
359 *\li 'zonep' to point to a valid zone.
363 dns_zone_setflag(dns_zone_t *zone, unsigned int flags, isc_boolean_t value);
365 * Sets ('value' == 'ISC_TRUE') / clears ('value' == 'IS_FALSE')
366 * zone flags. Valid flag bits are DNS_ZONE_F_*.
369 *\li 'zone' to be a valid zone.
373 dns_zone_getdb(dns_zone_t *zone, dns_db_t **dbp);
375 * Attach '*dbp' to the database to if it exists otherwise
376 * return DNS_R_NOTLOADED.
379 *\li 'zone' to be a valid zone.
380 *\li 'dbp' to be != NULL && '*dbp' == NULL.
388 dns_zone_setdb(dns_zone_t *zone, dns_db_t *db);
390 * Sets the zone database to 'db'.
392 * This function is expected to be used to configure a zone with a
393 * database which is not loaded from a file or zone transfer.
394 * It can be used for a general purpose zone, but right now its use
395 * is limited to static-stub zones to avoid possible undiscovered
396 * problems in the general cases.
399 *\li 'zone' to be a valid zone of static-stub.
400 *\li zone doesn't have a database.
404 dns_zone_setdbtype(dns_zone_t *zone,
405 unsigned int dbargc, const char * const *dbargv);
407 * Sets the database type to dbargv[0] and database arguments
408 * to subsequent dbargv elements.
409 * 'db_type' is not checked to see if it is a valid database type.
412 *\li 'zone' to be a valid zone.
413 *\li 'database' to be non NULL.
414 *\li 'dbargc' to be >= 1
415 *\li 'dbargv' to point to dbargc NULL-terminated strings
423 dns_zone_getdbtype(dns_zone_t *zone, char ***argv, isc_mem_t *mctx);
425 * Returns the current dbtype. isc_mem_free() should be used
426 * to free 'argv' after use.
429 *\li 'zone' to be a valid zone.
430 *\li 'argv' to be non NULL and *argv to be NULL.
431 *\li 'mctx' to be valid.
439 dns_zone_markdirty(dns_zone_t *zone);
441 * Mark a zone as 'dirty'.
444 *\li 'zone' to be a valid zone.
448 dns_zone_expire(dns_zone_t *zone);
450 * Mark the zone as expired. If the zone requires dumping cause it to
451 * be initiated. Set the refresh and retry intervals to there default
452 * values and unload the zone.
455 *\li 'zone' to be a valid zone.
459 dns_zone_refresh(dns_zone_t *zone);
461 * Initiate zone up to date checks. The zone must already be being
465 *\li 'zone' to be a valid zone.
469 dns_zone_flush(dns_zone_t *zone);
471 * Write the zone to database if there are uncommitted changes.
474 *\li 'zone' to be a valid zone.
478 dns_zone_dump(dns_zone_t *zone);
480 * Write the zone to database.
483 *\li 'zone' to be a valid zone.
487 dns_zone_dumptostream(dns_zone_t *zone, FILE *fd);
490 dns_zone_dumptostream2(dns_zone_t *zone, FILE *fd, dns_masterformat_t format,
491 const dns_master_style_t *style);
493 * Write the zone to stream 'fd' in the specified 'format'.
494 * If the 'format' is dns_masterformat_text (RFC1035), 'style' also
495 * specifies the file style (e.g., &dns_master_style_default).
497 * dns_zone_dumptostream() is a backward-compatible form of
498 * dns_zone_dumptostream2(), which always uses the dns_masterformat_text
499 * format and the dns_master_style_default style.
501 * Note that dns_zone_dumptostream2() is the most flexible form. It
502 * can also provide the functionality of dns_zone_fulldumptostream().
505 *\li 'zone' to be a valid zone.
506 *\li 'fd' to be a stream open for writing.
510 dns_zone_fulldumptostream(dns_zone_t *zone, FILE *fd);
512 * The same as dns_zone_dumptostream, but dumps the zone with
513 * different dump settings (dns_master_style_full).
516 *\li 'zone' to be a valid zone.
517 *\li 'fd' to be a stream open for writing.
521 dns_zone_maintenance(dns_zone_t *zone);
523 * Perform regular maintenance on the zone. This is called as a
524 * result of a zone being managed.
527 *\li 'zone' to be a valid zone.
531 dns_zone_setmasters(dns_zone_t *zone, const isc_sockaddr_t *masters,
534 dns_zone_setmasterswithkeys(dns_zone_t *zone,
535 const isc_sockaddr_t *masters,
536 dns_name_t **keynames,
539 * Set the list of master servers for the zone.
542 *\li 'zone' to be a valid zone.
543 *\li 'masters' array of isc_sockaddr_t with port set or NULL.
544 *\li 'count' the number of masters.
545 *\li 'keynames' array of dns_name_t's for tsig keys or NULL.
547 * \li dns_zone_setmasters() is just a wrapper to setmasterswithkeys(),
548 * passing NULL in the keynames field.
550 * \li If 'masters' is NULL then 'count' must be zero.
555 *\li Any result dns_name_dup() can return, if keynames!=NULL
559 dns_zone_setalsonotify(dns_zone_t *zone, const isc_sockaddr_t *notify,
562 * Set the list of additional servers to be notified when
563 * a zone changes. To clear the list use 'count = 0'.
566 *\li 'zone' to be a valid zone.
567 *\li 'notify' to be non-NULL if count != 0.
568 *\li 'count' to be the number of notifiees.
576 dns_zone_unload(dns_zone_t *zone);
578 * detach the database from the zone structure.
581 *\li 'zone' to be a valid zone.
585 dns_zone_setoption(dns_zone_t *zone, unsigned int option, isc_boolean_t value);
587 * Set given options on ('value' == ISC_TRUE) or off ('value' ==
591 *\li 'zone' to be a valid zone.
595 dns_zone_getoptions(dns_zone_t *zone);
597 * Returns the current zone options.
600 *\li 'zone' to be a valid zone.
604 dns_zone_setkeyopt(dns_zone_t *zone, unsigned int option, isc_boolean_t value);
606 * Set key options on ('value' == ISC_TRUE) or off ('value' ==
610 *\li 'zone' to be a valid zone.
614 dns_zone_getkeyopts(dns_zone_t *zone);
616 * Returns the current zone key options.
619 *\li 'zone' to be a valid zone.
623 dns_zone_setminrefreshtime(dns_zone_t *zone, isc_uint32_t val);
625 * Set the minimum refresh time.
628 *\li 'zone' is valid.
633 dns_zone_setmaxrefreshtime(dns_zone_t *zone, isc_uint32_t val);
635 * Set the maximum refresh time.
638 *\li 'zone' is valid.
643 dns_zone_setminretrytime(dns_zone_t *zone, isc_uint32_t val);
645 * Set the minimum retry time.
648 *\li 'zone' is valid.
653 dns_zone_setmaxretrytime(dns_zone_t *zone, isc_uint32_t val);
655 * Set the maximum retry time.
658 *\li 'zone' is valid.
663 dns_zone_setxfrsource4(dns_zone_t *zone, const isc_sockaddr_t *xfrsource);
665 dns_zone_setaltxfrsource4(dns_zone_t *zone,
666 const isc_sockaddr_t *xfrsource);
668 * Set the source address to be used in IPv4 zone transfers.
671 *\li 'zone' to be a valid zone.
672 *\li 'xfrsource' to contain the address.
679 dns_zone_getxfrsource4(dns_zone_t *zone);
681 dns_zone_getaltxfrsource4(dns_zone_t *zone);
683 * Returns the source address set by a previous dns_zone_setxfrsource4
684 * call, or the default of inaddr_any, port 0.
687 *\li 'zone' to be a valid zone.
691 dns_zone_setxfrsource6(dns_zone_t *zone, const isc_sockaddr_t *xfrsource);
693 dns_zone_setaltxfrsource6(dns_zone_t *zone,
694 const isc_sockaddr_t *xfrsource);
696 * Set the source address to be used in IPv6 zone transfers.
699 *\li 'zone' to be a valid zone.
700 *\li 'xfrsource' to contain the address.
707 dns_zone_getxfrsource6(dns_zone_t *zone);
709 dns_zone_getaltxfrsource6(dns_zone_t *zone);
711 * Returns the source address set by a previous dns_zone_setxfrsource6
712 * call, or the default of in6addr_any, port 0.
715 *\li 'zone' to be a valid zone.
719 dns_zone_setnotifysrc4(dns_zone_t *zone, const isc_sockaddr_t *notifysrc);
721 * Set the source address to be used with IPv4 NOTIFY messages.
724 *\li 'zone' to be a valid zone.
725 *\li 'notifysrc' to contain the address.
732 dns_zone_getnotifysrc4(dns_zone_t *zone);
734 * Returns the source address set by a previous dns_zone_setnotifysrc4
735 * call, or the default of inaddr_any, port 0.
738 *\li 'zone' to be a valid zone.
742 dns_zone_setnotifysrc6(dns_zone_t *zone, const isc_sockaddr_t *notifysrc);
744 * Set the source address to be used with IPv6 NOTIFY messages.
747 *\li 'zone' to be a valid zone.
748 *\li 'notifysrc' to contain the address.
755 dns_zone_getnotifysrc6(dns_zone_t *zone);
757 * Returns the source address set by a previous dns_zone_setnotifysrc6
758 * call, or the default of in6addr_any, port 0.
761 *\li 'zone' to be a valid zone.
765 dns_zone_setnotifyacl(dns_zone_t *zone, dns_acl_t *acl);
767 * Sets the notify acl list for the zone.
770 *\li 'zone' to be a valid zone.
771 *\li 'acl' to be a valid acl.
775 dns_zone_setqueryacl(dns_zone_t *zone, dns_acl_t *acl);
777 * Sets the query acl list for the zone.
780 *\li 'zone' to be a valid zone.
781 *\li 'acl' to be a valid acl.
785 dns_zone_setqueryonacl(dns_zone_t *zone, dns_acl_t *acl);
787 * Sets the query-on acl list for the zone.
790 *\li 'zone' to be a valid zone.
791 *\li 'acl' to be a valid acl.
795 dns_zone_setupdateacl(dns_zone_t *zone, dns_acl_t *acl);
797 * Sets the update acl list for the zone.
800 *\li 'zone' to be a valid zone.
801 *\li 'acl' to be valid acl.
805 dns_zone_setforwardacl(dns_zone_t *zone, dns_acl_t *acl);
807 * Sets the forward unsigned updates acl list for the zone.
810 *\li 'zone' to be a valid zone.
811 *\li 'acl' to be valid acl.
815 dns_zone_setxfracl(dns_zone_t *zone, dns_acl_t *acl);
817 * Sets the transfer acl list for the zone.
820 *\li 'zone' to be a valid zone.
821 *\li 'acl' to be valid acl.
825 dns_zone_getnotifyacl(dns_zone_t *zone);
827 * Returns the current notify acl or NULL.
830 *\li 'zone' to be a valid zone.
833 *\li acl a pointer to the acl.
838 dns_zone_getqueryacl(dns_zone_t *zone);
840 * Returns the current query acl or NULL.
843 *\li 'zone' to be a valid zone.
846 *\li acl a pointer to the acl.
851 dns_zone_getqueryonacl(dns_zone_t *zone);
853 * Returns the current query-on acl or NULL.
856 *\li 'zone' to be a valid zone.
859 *\li acl a pointer to the acl.
864 dns_zone_getupdateacl(dns_zone_t *zone);
866 * Returns the current update acl or NULL.
869 *\li 'zone' to be a valid zone.
872 *\li acl a pointer to the acl.
877 dns_zone_getforwardacl(dns_zone_t *zone);
879 * Returns the current forward unsigned updates acl or NULL.
882 *\li 'zone' to be a valid zone.
885 *\li acl a pointer to the acl.
890 dns_zone_getxfracl(dns_zone_t *zone);
892 * Returns the current transfer acl or NULL.
895 *\li 'zone' to be a valid zone.
898 *\li acl a pointer to the acl.
903 dns_zone_clearupdateacl(dns_zone_t *zone);
905 * Clear the current update acl.
908 *\li 'zone' to be a valid zone.
912 dns_zone_clearforwardacl(dns_zone_t *zone);
914 * Clear the current forward unsigned updates acl.
917 *\li 'zone' to be a valid zone.
921 dns_zone_clearnotifyacl(dns_zone_t *zone);
923 * Clear the current notify acl.
926 *\li 'zone' to be a valid zone.
930 dns_zone_clearqueryacl(dns_zone_t *zone);
932 * Clear the current query acl.
935 *\li 'zone' to be a valid zone.
939 dns_zone_clearqueryonacl(dns_zone_t *zone);
941 * Clear the current query-on acl.
944 *\li 'zone' to be a valid zone.
948 dns_zone_clearxfracl(dns_zone_t *zone);
950 * Clear the current transfer acl.
953 *\li 'zone' to be a valid zone.
957 dns_zone_getupdatedisabled(dns_zone_t *zone);
959 * Return update disabled.
960 * Transient unless called when running in isc_task_exclusive() mode.
964 dns_zone_setupdatedisabled(dns_zone_t *zone, isc_boolean_t state);
966 * Set update disabled.
967 * Should only be called only when running in isc_task_exclusive() mode.
968 * Failure to do so may result in updates being committed after the
969 * call has been made.
973 dns_zone_getzeronosoattl(dns_zone_t *zone);
975 * Return zero-no-soa-ttl status.
979 dns_zone_setzeronosoattl(dns_zone_t *zone, isc_boolean_t state);
981 * Set zero-no-soa-ttl status.
985 dns_zone_setchecknames(dns_zone_t *zone, dns_severity_t severity);
987 * Set the severity of name checking when loading a zone.
990 * \li 'zone' to be a valid zone.
994 dns_zone_getchecknames(dns_zone_t *zone);
996 * Return the current severity of name checking.
999 *\li 'zone' to be a valid zone.
1003 dns_zone_setjournalsize(dns_zone_t *zone, isc_int32_t size);
1005 * Sets the journal size for the zone.
1008 *\li 'zone' to be a valid zone.
1012 dns_zone_getjournalsize(dns_zone_t *zone);
1014 * Return the journal size as set with a previous call to
1015 * dns_zone_setjournalsize().
1018 *\li 'zone' to be a valid zone.
1022 dns_zone_notifyreceive(dns_zone_t *zone, isc_sockaddr_t *from,
1023 dns_message_t *msg);
1025 * Tell the zone that it has received a NOTIFY message from another
1026 * server. This may cause some zone maintenance activity to occur.
1029 *\li 'zone' to be a valid zone.
1030 *\li '*from' to contain the address of the server from which 'msg'
1032 *\li 'msg' a message with opcode NOTIFY and qr clear.
1042 dns_zone_setmaxxfrin(dns_zone_t *zone, isc_uint32_t maxxfrin);
1044 * Set the maximum time (in seconds) that a zone transfer in (AXFR/IXFR)
1045 * of this zone will use before being aborted.
1048 * \li 'zone' to be valid initialised zone.
1052 dns_zone_getmaxxfrin(dns_zone_t *zone);
1054 * Returns the maximum transfer time for this zone. This will be
1055 * either the value set by the last call to dns_zone_setmaxxfrin() or
1056 * the default value of 1 hour.
1059 *\li 'zone' to be valid initialised zone.
1063 dns_zone_setmaxxfrout(dns_zone_t *zone, isc_uint32_t maxxfrout);
1065 * Set the maximum time (in seconds) that a zone transfer out (AXFR/IXFR)
1066 * of this zone will use before being aborted.
1069 * \li 'zone' to be valid initialised zone.
1073 dns_zone_getmaxxfrout(dns_zone_t *zone);
1075 * Returns the maximum transfer time for this zone. This will be
1076 * either the value set by the last call to dns_zone_setmaxxfrout() or
1077 * the default value of 1 hour.
1080 *\li 'zone' to be valid initialised zone.
1084 dns_zone_setjournal(dns_zone_t *zone, const char *journal);
1086 * Sets the filename used for journaling updates / IXFR transfers.
1087 * The default journal name is set by dns_zone_setfile() to be
1088 * "file.jnl". If 'journal' is NULL, the zone will have no
1092 *\li 'zone' to be a valid zone.
1096 *\li #ISC_R_NOMEMORY
1100 dns_zone_getjournal(dns_zone_t *zone);
1102 * Returns the journal name associated with this zone.
1103 * If no journal has been set this will be NULL.
1106 *\li 'zone' to be valid initialised zone.
1110 dns_zone_gettype(dns_zone_t *zone);
1112 * Returns the type of the zone (master/slave/etc.)
1115 *\li 'zone' to be valid initialised zone.
1119 dns_zone_settask(dns_zone_t *zone, isc_task_t *task);
1121 * Give a zone a task to work with. Any current task will be detached.
1124 *\li 'zone' to be valid.
1125 *\li 'task' to be valid.
1129 dns_zone_gettask(dns_zone_t *zone, isc_task_t **target);
1131 * Attach '*target' to the zone's task.
1134 *\li 'zone' to be valid initialised zone.
1135 *\li 'zone' to have a task.
1136 *\li 'target' to be != NULL && '*target' == NULL.
1140 dns_zone_notify(dns_zone_t *zone);
1142 * Generate notify events for this zone.
1145 *\li 'zone' to be a valid zone.
1149 dns_zone_replacedb(dns_zone_t *zone, dns_db_t *db, isc_boolean_t dump);
1151 * Replace the database of "zone" with a new database "db".
1153 * If "dump" is ISC_TRUE, then the new zone contents are dumped
1154 * into to the zone's master file for persistence. When replacing
1155 * a zone database by one just loaded from a master file, set
1156 * "dump" to ISC_FALSE to avoid a redundant redump of the data just
1157 * loaded. Otherwise, it should be set to ISC_TRUE.
1159 * If the "diff-on-reload" option is enabled in the configuration file,
1160 * the differences between the old and the new database are added to the
1161 * journal file, and the master file dump is postponed.
1164 * \li 'zone' to be a valid zone.
1168 * \li DNS_R_BADZONE zone failed basic consistency checks:
1169 * * a single SOA must exist
1170 * * some NS records must exist.
1175 dns_zone_getidlein(dns_zone_t *zone);
1178 * \li 'zone' to be a valid zone.
1181 * \li number of seconds of idle time before we abort the transfer in.
1185 dns_zone_setidlein(dns_zone_t *zone, isc_uint32_t idlein);
1187 * \li Set the idle timeout for transfer the.
1188 * \li Zero set the default value, 1 hour.
1191 * \li 'zone' to be a valid zone.
1195 dns_zone_getidleout(dns_zone_t *zone);
1199 * \li 'zone' to be a valid zone.
1202 * \li number of seconds of idle time before we abort a transfer out.
1206 dns_zone_setidleout(dns_zone_t *zone, isc_uint32_t idleout);
1208 * \li Set the idle timeout for transfers out.
1209 * \li Zero set the default value, 1 hour.
1212 * \li 'zone' to be a valid zone.
1216 dns_zone_getssutable(dns_zone_t *zone, dns_ssutable_t **table);
1218 * Get the simple-secure-update policy table.
1221 * \li 'zone' to be a valid zone.
1225 dns_zone_setssutable(dns_zone_t *zone, dns_ssutable_t *table);
1227 * Set / clear the simple-secure-update policy table.
1230 * \li 'zone' to be a valid zone.
1234 dns_zone_getmctx(dns_zone_t *zone);
1236 * Get the memory context of a zone.
1239 * \li 'zone' to be a valid zone.
1243 dns_zone_getmgr(dns_zone_t *zone);
1245 * If 'zone' is managed return the zone manager otherwise NULL.
1248 * \li 'zone' to be a valid zone.
1252 dns_zone_setsigvalidityinterval(dns_zone_t *zone, isc_uint32_t interval);
1254 * Set the zone's RRSIG validity interval. This is the length of time
1255 * for which DNSSEC signatures created as a result of dynamic updates
1256 * to secure zones will remain valid, in seconds.
1259 * \li 'zone' to be a valid zone.
1263 dns_zone_getsigvalidityinterval(dns_zone_t *zone);
1265 * Get the zone's RRSIG validity interval.
1268 * \li 'zone' to be a valid zone.
1272 dns_zone_setsigresigninginterval(dns_zone_t *zone, isc_uint32_t interval);
1274 * Set the zone's RRSIG re-signing interval. A dynamic zone's RRSIG's
1275 * will be re-signed 'interval' amount of time before they expire.
1278 * \li 'zone' to be a valid zone.
1282 dns_zone_getsigresigninginterval(dns_zone_t *zone);
1284 * Get the zone's RRSIG re-signing interval.
1287 * \li 'zone' to be a valid zone.
1291 dns_zone_setnotifytype(dns_zone_t *zone, dns_notifytype_t notifytype);
1293 * Sets zone notify method to "notifytype"
1297 dns_zone_forwardupdate(dns_zone_t *zone, dns_message_t *msg,
1298 dns_updatecallback_t callback, void *callback_arg);
1300 * Forward 'msg' to each master in turn until we get an answer or we
1301 * have exhausted the list of masters. 'callback' will be called with
1302 * ISC_R_SUCCESS if we get an answer and the returned message will be
1303 * passed as 'answer_message', otherwise a non ISC_R_SUCCESS result code
1304 * will be passed and answer_message will be NULL. The callback function
1305 * is responsible for destroying 'answer_message'.
1306 * (callback)(callback_arg, result, answer_message);
1309 *\li 'zone' to be valid
1310 *\li 'msg' to be valid.
1311 *\li 'callback' to be non NULL.
1313 *\li #ISC_R_SUCCESS if the message has been forwarded,
1314 *\li #ISC_R_NOMEMORY
1319 dns_zone_next(dns_zone_t *zone, dns_zone_t **next);
1321 * Find the next zone in the list of managed zones.
1324 *\li 'zone' to be valid
1325 *\li The zone manager for the indicated zone MUST be locked
1326 * by the caller. This is not checked.
1327 *\li 'next' be non-NULL, and '*next' be NULL.
1330 *\li 'next' points to a valid zone (result ISC_R_SUCCESS) or to NULL
1331 * (result ISC_R_NOMORE).
1337 dns_zone_first(dns_zonemgr_t *zmgr, dns_zone_t **first);
1339 * Find the first zone in the list of managed zones.
1342 *\li 'zonemgr' to be valid
1343 *\li The zone manager for the indicated zone MUST be locked
1344 * by the caller. This is not checked.
1345 *\li 'first' be non-NULL, and '*first' be NULL
1348 *\li 'first' points to a valid zone (result ISC_R_SUCCESS) or to NULL
1349 * (result ISC_R_NOMORE).
1353 dns_zone_setkeydirectory(dns_zone_t *zone, const char *directory);
1355 * Sets the name of the directory where private keys used for
1356 * online signing of dynamic zones are found.
1359 *\li 'zone' to be a valid zone.
1362 *\li #ISC_R_NOMEMORY
1367 dns_zone_getkeydirectory(dns_zone_t *zone);
1369 * Gets the name of the directory where private keys used for
1370 * online signing of dynamic zones are found.
1373 *\li 'zone' to be valid initialised zone.
1376 * Pointer to null-terminated file name, or NULL.
1381 dns_zonemgr_create(isc_mem_t *mctx, isc_taskmgr_t *taskmgr,
1382 isc_timermgr_t *timermgr, isc_socketmgr_t *socketmgr,
1383 dns_zonemgr_t **zmgrp);
1385 * Create a zone manager. Note: the zone manager will not be able to
1386 * manage any zones until dns_zonemgr_setsize() has been run.
1389 *\li 'mctx' to be a valid memory context.
1390 *\li 'taskmgr' to be a valid task manager.
1391 *\li 'timermgr' to be a valid timer manager.
1392 *\li 'zmgrp' to point to a NULL pointer.
1396 dns_zonemgr_setsize(dns_zonemgr_t *zmgr, int num_zones);
1398 * Set the size of the zone manager task pool. This must be run
1399 * before zmgr can be used for managing zones. Currently, it can only
1400 * be run once; the task pool cannot be resized.
1403 *\li zmgr is a valid zone manager.
1404 *\li zmgr->zonetasks has been initialized.
1408 dns_zonemgr_managezone(dns_zonemgr_t *zmgr, dns_zone_t *zone);
1410 * Bring the zone under control of a zone manager.
1413 *\li 'zmgr' to be a valid zone manager.
1414 *\li 'zone' to be a valid zone.
1418 dns_zonemgr_forcemaint(dns_zonemgr_t *zmgr);
1420 * Force zone maintenance of all zones managed by 'zmgr' at its
1421 * earliest convenience.
1425 dns_zonemgr_resumexfrs(dns_zonemgr_t *zmgr);
1427 * Attempt to start any stalled zone transfers.
1431 dns_zonemgr_shutdown(dns_zonemgr_t *zmgr);
1433 * Shut down the zone manager.
1436 *\li 'zmgr' to be a valid zone manager.
1440 dns_zonemgr_attach(dns_zonemgr_t *source, dns_zonemgr_t **target);
1442 * Attach '*target' to 'source' incrementing its external
1446 *\li 'zone' to be a valid zone.
1447 *\li 'target' to be non NULL and '*target' to be NULL.
1451 dns_zonemgr_detach(dns_zonemgr_t **zmgrp);
1453 * Detach from a zone manager.
1456 *\li '*zmgrp' is a valid, non-NULL zone manager pointer.
1459 *\li '*zmgrp' is NULL.
1463 dns_zonemgr_releasezone(dns_zonemgr_t *zmgr, dns_zone_t *zone);
1465 * Release 'zone' from the managed by 'zmgr'. 'zmgr' is implicitly
1466 * detached from 'zone'.
1469 *\li 'zmgr' to be a valid zone manager.
1470 *\li 'zone' to be a valid zone.
1471 *\li 'zmgr' == 'zone->zmgr'
1474 *\li 'zone->zmgr' == NULL;
1478 dns_zonemgr_settransfersin(dns_zonemgr_t *zmgr, isc_uint32_t value);
1480 * Set the maximum number of simultaneous transfers in allowed by
1484 *\li 'zmgr' to be a valid zone manager.
1488 dns_zonemgr_getttransfersin(dns_zonemgr_t *zmgr);
1490 * Return the maximum number of simultaneous transfers in allowed.
1493 *\li 'zmgr' to be a valid zone manager.
1497 dns_zonemgr_settransfersperns(dns_zonemgr_t *zmgr, isc_uint32_t value);
1499 * Set the number of zone transfers allowed per nameserver.
1502 *\li 'zmgr' to be a valid zone manager
1506 dns_zonemgr_getttransfersperns(dns_zonemgr_t *zmgr);
1508 * Return the number of transfers allowed per nameserver.
1511 *\li 'zmgr' to be a valid zone manager.
1515 dns_zonemgr_setiolimit(dns_zonemgr_t *zmgr, isc_uint32_t iolimit);
1517 * Set the number of simultaneous file descriptors available for
1518 * reading and writing masterfiles.
1521 *\li 'zmgr' to be a valid zone manager.
1522 *\li 'iolimit' to be positive.
1526 dns_zonemgr_getiolimit(dns_zonemgr_t *zmgr);
1528 * Get the number of simultaneous file descriptors available for
1529 * reading and writing masterfiles.
1532 *\li 'zmgr' to be a valid zone manager.
1536 dns_zonemgr_setserialqueryrate(dns_zonemgr_t *zmgr, unsigned int value);
1538 * Set the number of SOA queries sent per second.
1541 *\li 'zmgr' to be a valid zone manager
1545 dns_zonemgr_getserialqueryrate(dns_zonemgr_t *zmgr);
1547 * Return the number of SOA queries sent per second.
1550 *\li 'zmgr' to be a valid zone manager.
1554 dns_zonemgr_getcount(dns_zonemgr_t *zmgr, int state);
1556 * Returns the number of zones in the specified state.
1559 *\li 'zmgr' to be a valid zone manager.
1560 *\li 'state' to be a valid DNS_ZONESTATE_ constant.
1564 dns_zonemgr_unreachableadd(dns_zonemgr_t *zmgr, isc_sockaddr_t *remote,
1565 isc_sockaddr_t *local, isc_time_t *now);
1567 * Add the pair of addresses to the unreachable cache.
1570 *\li 'zmgr' to be a valid zone manager.
1571 *\li 'remote' to be a valid sockaddr.
1572 *\li 'local' to be a valid sockaddr.
1576 dns_zonemgr_unreachable(dns_zonemgr_t *zmgr, isc_sockaddr_t *remote,
1577 isc_sockaddr_t *local, isc_time_t *now);
1579 * Returns ISC_TRUE if the given local/remote address pair
1580 * is found in the zone maanger's unreachable cache.
1583 *\li 'zmgr' to be a valid zone manager.
1584 *\li 'remote' to be a valid sockaddr.
1585 *\li 'local' to be a valid sockaddr.
1590 dns_zonemgr_unreachabledel(dns_zonemgr_t *zmgr, isc_sockaddr_t *remote,
1591 isc_sockaddr_t *local);
1593 * Remove the pair of addresses from the unreachable cache.
1596 *\li 'zmgr' to be a valid zone manager.
1597 *\li 'remote' to be a valid sockaddr.
1598 *\li 'local' to be a valid sockaddr.
1602 dns_zone_forcereload(dns_zone_t *zone);
1604 * Force a reload of specified zone.
1607 *\li 'zone' to be a valid zone.
1611 dns_zone_isforced(dns_zone_t *zone);
1613 * Check if the zone is waiting a forced reload.
1616 * \li 'zone' to be a valid zone.
1620 dns_zone_setstatistics(dns_zone_t *zone, isc_boolean_t on);
1622 * This function is obsoleted by dns_zone_setrequeststats().
1626 dns_zone_getstatscounters(dns_zone_t *zone);
1628 * This function is obsoleted by dns_zone_getrequeststats().
1632 dns_zone_setstats(dns_zone_t *zone, isc_stats_t *stats);
1634 * Set a general zone-maintenance statistics set 'stats' for 'zone'. This
1635 * function is expected to be called only on zone creation (when necessary).
1636 * Once installed, it cannot be removed or replaced. Also, there is no
1637 * interface to get the installed stats from the zone; the caller must keep the
1638 * stats to reference (e.g. dump) it later.
1641 * \li 'zone' to be a valid zone and does not have a statistics set already
1644 *\li stats is a valid statistics supporting zone statistics counters
1645 * (see dns/stats.h).
1649 dns_zone_setrequeststats(dns_zone_t *zone, isc_stats_t *stats);
1651 * Set an additional statistics set to zone. It is attached in the zone
1652 * but is not counted in the zone module; only the caller updates the counters.
1655 * \li 'zone' to be a valid zone.
1657 *\li stats is a valid statistics.
1661 dns_zone_getrequeststats(dns_zone_t *zone);
1663 * Get the additional statistics for zone, if one is installed.
1666 * \li 'zone' to be a valid zone.
1669 * \li when available, a pointer to the statistics set installed in zone;
1674 dns_zone_dialup(dns_zone_t *zone);
1676 * Perform dialup-time maintenance on 'zone'.
1680 dns_zone_setdialup(dns_zone_t *zone, dns_dialuptype_t dialup);
1682 * Set the dialup type of 'zone' to 'dialup'.
1685 * \li 'zone' to be valid initialised zone.
1686 *\li 'dialup' to be a valid dialup type.
1690 dns_zone_log(dns_zone_t *zone, int level, const char *msg, ...)
1691 ISC_FORMAT_PRINTF(3, 4);
1693 * Log the message 'msg...' at 'level', including text that identifies
1694 * the message as applying to 'zone'.
1698 dns_zone_logc(dns_zone_t *zone, isc_logcategory_t *category, int level,
1699 const char *msg, ...) ISC_FORMAT_PRINTF(4, 5);
1701 * Log the message 'msg...' at 'level', including text that identifies
1702 * the message as applying to 'zone'.
1706 dns_zone_name(dns_zone_t *zone, char *buf, size_t len);
1708 * Return the name of the zone with class and view.
1711 *\li 'zone' to be valid.
1712 *\li 'buf' to be non NULL.
1716 dns_zone_checknames(dns_zone_t *zone, dns_name_t *name, dns_rdata_t *rdata);
1718 * Check if this record meets the check-names policy.
1721 * 'zone' to be valid.
1722 * 'name' to be valid.
1723 * 'rdata' to be valid.
1726 * DNS_R_SUCCESS passed checks.
1727 * DNS_R_BADOWNERNAME failed ownername checks.
1728 * DNS_R_BADNAME failed rdata checks.
1732 dns_zone_setacache(dns_zone_t *zone, dns_acache_t *acache);
1734 * Associate the zone with an additional cache.
1737 * 'zone' to be a valid zone.
1738 * 'acache' to be a non NULL pointer.
1741 * 'zone' will have a reference to 'acache'
1745 dns_zone_setcheckmx(dns_zone_t *zone, dns_checkmxfunc_t checkmx);
1747 * Set the post load integrity callback function 'checkmx'.
1748 * 'checkmx' will be called if the MX TARGET is not within the zone.
1751 * 'zone' to be a valid zone.
1755 dns_zone_setchecksrv(dns_zone_t *zone, dns_checkmxfunc_t checksrv);
1757 * Set the post load integrity callback function 'checksrv'.
1758 * 'checksrv' will be called if the SRV TARGET is not within the zone.
1761 * 'zone' to be a valid zone.
1765 dns_zone_setcheckns(dns_zone_t *zone, dns_checknsfunc_t checkns);
1767 * Set the post load integrity callback function 'checkns'.
1768 * 'checkns' will be called if the NS TARGET is not within the zone.
1771 * 'zone' to be a valid zone.
1775 dns_zone_setnotifydelay(dns_zone_t *zone, isc_uint32_t delay);
1777 * Set the minimum delay between sets of notify messages.
1780 * 'zone' to be valid.
1784 dns_zone_getnotifydelay(dns_zone_t *zone);
1786 * Get the minimum delay between sets of notify messages.
1789 * 'zone' to be valid.
1793 dns_zone_setisself(dns_zone_t *zone, dns_isselffunc_t isself, void *arg);
1795 * Set the isself callback function and argument.
1798 * isself(dns_view_t *myview, dns_tsigkey_t *mykey, isc_netaddr_t *srcaddr,
1799 * isc_netaddr_t *destaddr, dns_rdataclass_t rdclass, void *arg);
1801 * 'isself' returns ISC_TRUE if a non-recursive query from 'srcaddr' to
1802 * 'destaddr' with optional key 'mykey' for class 'rdclass' would be
1803 * delivered to 'myview'.
1807 dns_zone_setnodes(dns_zone_t *zone, isc_uint32_t nodes);
1809 * Set the number of nodes that will be checked per quantum.
1813 dns_zone_setsignatures(dns_zone_t *zone, isc_uint32_t signatures);
1815 * Set the number of signatures that will be generated per quantum.
1819 dns_zone_signwithkey(dns_zone_t *zone, dns_secalg_t algorithm,
1820 isc_uint16_t keyid, isc_boolean_t deleteit);
1822 * Initiate/resume signing of the entire zone with the zone DNSKEY(s)
1823 * that match the given algorithm and keyid.
1827 dns_zone_addnsec3chain(dns_zone_t *zone, dns_rdata_nsec3param_t *nsec3param);
1829 * Incrementally add a NSEC3 chain that corresponds to 'nsec3param'.
1833 dns_zone_setprivatetype(dns_zone_t *zone, dns_rdatatype_t type);
1835 dns_zone_getprivatetype(dns_zone_t *zone);
1837 * Get/Set the private record type. It is expected that these interfaces
1838 * will not be permanent.
1842 dns_zone_rekey(dns_zone_t *zone, isc_boolean_t fullsign);
1844 * Update the zone's DNSKEY set from the key repository.
1846 * If 'fullsign' is true, trigger an immediate full signing of
1847 * the zone with the new key. Otherwise, if there are no keys or
1848 * if the new keys are for algorithms that have already signed the
1849 * zone, then the zone can be re-signed incrementally.
1853 dns_zone_nscheck(dns_zone_t *zone, dns_db_t *db, dns_dbversion_t *version,
1854 unsigned int *errors);
1856 * Check if the name servers for the zone are sane (have address, don't
1857 * refer to CNAMEs/DNAMEs. The number of constiancy errors detected in
1858 * returned in '*errors'
1861 * \li 'zone' to be valid.
1862 * \li 'db' to be valid.
1863 * \li 'version' to be valid or NULL.
1864 * \li 'errors' to be non NULL.
1867 * ISC_R_SUCCESS if there were no errors examining the zone contents.
1871 dns_zone_setadded(dns_zone_t *zone, isc_boolean_t added);
1873 * Sets the value of zone->added, which should be ISC_TRUE for
1874 * zones that were originally added by "rndc addzone".
1877 * \li 'zone' to be valid.
1881 dns_zone_getadded(dns_zone_t *zone);
1883 * Returns ISC_TRUE if the zone was originally added at runtime
1884 * using "rndc addzone".
1887 * \li 'zone' to be valid.
1891 dns_zone_dlzpostload(dns_zone_t *zone, dns_db_t *db);
1893 * Load the origin names for a writeable DLZ database.
1897 dns_zone_synckeyzone(dns_zone_t *zone);
1899 * Force the managed key zone to synchronize, and start the key
1900 * maintenance timer.
1904 dns_zone_rpz_enable(dns_zone_t *zone);
1906 * Set the response policy associated with a zone.
1910 dns_zone_rpz_enable_db(dns_zone_t *zone, dns_db_t *db);
1912 * If a zone is a response policy zone, mark its new database.
1916 dns_zone_get_rpz(dns_zone_t *zone);
1920 #endif /* DNS_ZONE_H */