2 * Copyright (C) 2004-2010 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: server.h,v 1.110 2010/08/16 23:46:52 tbox Exp $ */
20 #ifndef NAMED_SERVER_H
21 #define NAMED_SERVER_H 1
26 #include <isc/magic.h>
27 #include <isc/quota.h>
28 #include <isc/sockaddr.h>
29 #include <isc/types.h>
33 #include <dns/types.h>
35 #include <named/types.h>
37 #define NS_EVENTCLASS ISC_EVENTCLASS(0x4E43)
38 #define NS_EVENT_RELOAD (NS_EVENTCLASS + 0)
39 #define NS_EVENT_CLIENTCONTROL (NS_EVENTCLASS + 1)
42 * Name server state. Better here than in lots of separate global variables.
50 /* Configurable data. */
51 isc_quota_t xfroutquota;
53 isc_quota_t recursionquota;
54 dns_acl_t *blackholeacl;
55 char * statsfile; /*%< Statistics file name */
56 char * dumpfile; /*%< Dump file name */
57 char * secrootsfile; /*%< Secroots file name */
58 char * bindkeysfile; /*%< bind.keys file name */
59 char * recfile; /*%< Recursive file name */
60 isc_boolean_t version_set; /*%< User has set version */
61 char * version; /*%< User-specified version */
62 isc_boolean_t hostname_set; /*%< User has set hostname */
63 char * hostname; /*%< User-specified hostname */
64 /*% Use hostname for server id */
65 isc_boolean_t server_usehostname;
66 char * server_id; /*%< User-specified server id */
69 * Current ACL environment. This defines the
70 * current values of the localhost and localnets
75 /* Server data structures. */
76 dns_loadmgr_t * loadmgr;
77 dns_zonemgr_t * zonemgr;
78 dns_viewlist_t viewlist;
79 ns_interfacemgr_t * interfacemgr;
80 dns_db_t * in_roothints;
81 dns_tkeyctx_t * tkeyctx;
83 isc_timer_t * interface_timer;
84 isc_timer_t * heartbeat_timer;
85 isc_timer_t * pps_timer;
87 isc_uint32_t interface_interval;
88 isc_uint32_t heartbeat_interval;
90 isc_mutex_t reload_event_lock;
91 isc_event_t * reload_event;
93 isc_boolean_t flushonshutdown;
94 isc_boolean_t log_queries; /*%< For BIND 8 compatibility */
96 ns_cachelist_t cachelist; /*%< Possibly shared caches */
97 isc_stats_t * nsstats; /*%< Server stats */
98 dns_stats_t * rcvquerystats; /*% Incoming query stats */
99 dns_stats_t * opcodestats; /*%< Incoming message stats */
100 isc_stats_t * zonestats; /*% Zone management stats */
101 isc_stats_t * resolverstats; /*% Resolver stats */
102 isc_stats_t * sockstats; /*%< Socket stats */
104 ns_controls_t * controls; /*%< Control channels */
105 unsigned int dispatchgen;
106 ns_dispatchlist_t dispatches;
108 dns_acache_t *acache;
110 ns_statschannellist_t statschannels;
112 dns_tsigkey_t *sessionkey;
113 char *session_keyfile;
114 dns_name_t *session_keyname;
115 unsigned int session_keyalg;
116 isc_uint16_t session_keybits;
119 #define NS_SERVER_MAGIC ISC_MAGIC('S','V','E','R')
120 #define NS_SERVER_VALID(s) ISC_MAGIC_VALID(s, NS_SERVER_MAGIC)
123 * Server statistics counters. Used as isc_statscounter_t values.
126 dns_nsstatscounter_requestv4 = 0,
127 dns_nsstatscounter_requestv6 = 1,
128 dns_nsstatscounter_edns0in = 2,
129 dns_nsstatscounter_badednsver = 3,
130 dns_nsstatscounter_tsigin = 4,
131 dns_nsstatscounter_sig0in = 5,
132 dns_nsstatscounter_invalidsig = 6,
133 dns_nsstatscounter_tcp = 7,
135 dns_nsstatscounter_authrej = 8,
136 dns_nsstatscounter_recurserej = 9,
137 dns_nsstatscounter_xfrrej = 10,
138 dns_nsstatscounter_updaterej = 11,
140 dns_nsstatscounter_response = 12,
141 dns_nsstatscounter_truncatedresp = 13,
142 dns_nsstatscounter_edns0out = 14,
143 dns_nsstatscounter_tsigout = 15,
144 dns_nsstatscounter_sig0out = 16,
146 dns_nsstatscounter_success = 17,
147 dns_nsstatscounter_authans = 18,
148 dns_nsstatscounter_nonauthans = 19,
149 dns_nsstatscounter_referral = 20,
150 dns_nsstatscounter_nxrrset = 21,
151 dns_nsstatscounter_servfail = 22,
152 dns_nsstatscounter_formerr = 23,
153 dns_nsstatscounter_nxdomain = 24,
154 dns_nsstatscounter_recursion = 25,
155 dns_nsstatscounter_duplicate = 26,
156 dns_nsstatscounter_dropped = 27,
157 dns_nsstatscounter_failure = 28,
159 dns_nsstatscounter_xfrdone = 29,
161 dns_nsstatscounter_updatereqfwd = 30,
162 dns_nsstatscounter_updaterespfwd = 31,
163 dns_nsstatscounter_updatefwdfail = 32,
164 dns_nsstatscounter_updatedone = 33,
165 dns_nsstatscounter_updatefail = 34,
166 dns_nsstatscounter_updatebadprereq = 35,
168 dns_nsstatscounter_max = 36
172 ns_server_create(isc_mem_t *mctx, ns_server_t **serverp);
174 * Create a server object with default settings.
175 * This function either succeeds or causes the program to exit
176 * with a fatal error.
180 ns_server_destroy(ns_server_t **serverp);
182 * Destroy a server object, freeing its memory.
186 ns_server_reloadwanted(ns_server_t *server);
188 * Inform a server that a reload is wanted. This function
189 * may be called asynchronously, from outside the server's task.
190 * If a reload is already scheduled or in progress, the call
195 ns_server_flushonshutdown(ns_server_t *server, isc_boolean_t flush);
197 * Inform the server that the zones should be flushed to disk on shutdown.
201 ns_server_reloadcommand(ns_server_t *server, char *args, isc_buffer_t *text);
203 * Act on a "reload" command from the command channel.
207 ns_server_reconfigcommand(ns_server_t *server, char *args);
209 * Act on a "reconfig" command from the command channel.
213 ns_server_notifycommand(ns_server_t *server, char *args, isc_buffer_t *text);
215 * Act on a "notify" command from the command channel.
219 ns_server_refreshcommand(ns_server_t *server, char *args, isc_buffer_t *text);
221 * Act on a "refresh" command from the command channel.
225 ns_server_retransfercommand(ns_server_t *server, char *args);
227 * Act on a "retransfer" command from the command channel.
231 ns_server_togglequerylog(ns_server_t *server);
233 * Toggle logging of queries, as in BIND 8.
237 * Dump the current statistics to the statistics file.
240 ns_server_dumpstats(ns_server_t *server);
243 * Dump the current cache to the dump file.
246 ns_server_dumpdb(ns_server_t *server, char *args);
249 * Dump the current security roots to the secroots file.
252 ns_server_dumpsecroots(ns_server_t *server, char *args);
255 * Change or increment the server debug level.
258 ns_server_setdebuglevel(ns_server_t *server, char *args);
261 * Flush the server's cache(s)
264 ns_server_flushcache(ns_server_t *server, char *args);
267 * Flush a particular name from the server's cache(s)
270 ns_server_flushname(ns_server_t *server, char *args);
273 * Report the server's status.
276 ns_server_status(ns_server_t *server, isc_buffer_t *text);
279 * Report a list of dynamic and static tsig keys, per view.
282 ns_server_tsiglist(ns_server_t *server, isc_buffer_t *text);
285 * Delete a specific key (with optional view).
288 ns_server_tsigdelete(ns_server_t *server, char *command, isc_buffer_t *text);
291 * Enable or disable updates for a zone.
294 ns_server_freeze(ns_server_t *server, isc_boolean_t freeze, char *args,
298 * Update a zone's DNSKEY set from the key repository. If
299 * the command that triggered the call to this function was "sign",
300 * then force a full signing of the zone. If it was "loadkeys",
301 * then don't sign the zone; any needed changes to signatures can
302 * take place incrementally.
305 ns_server_rekey(ns_server_t *server, char *args);
308 * Dump the current recursive queries.
311 ns_server_dumprecursing(ns_server_t *server);
314 * Maintain a list of dispatches that require reserved ports.
317 ns_add_reserved_dispatch(ns_server_t *server, const isc_sockaddr_t *addr);
320 * Enable or disable dnssec validation.
323 ns_server_validation(ns_server_t *server, char *args);
326 * Add a zone to a running process
329 ns_server_add_zone(ns_server_t *server, char *args);
332 * Deletes a zone from a running process
335 ns_server_del_zone(ns_server_t *server, char *args);
337 #endif /* NAMED_SERVER_H */