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config_file.h (307729) config_file.h (356345)
1/*
2 * util/config_file.h - reads and stores the config file for unbound.
3 *
4 * Copyright (c) 2007, NLnet Labs. All rights reserved.
5 *
6 * This software is open source.
7 *
8 * Redistribution and use in source and binary forms, with or without

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37 * \file
38 *
39 * This file contains functions for the config file.
40 */
41
42#ifndef UTIL_CONFIG_FILE_H
43#define UTIL_CONFIG_FILE_H
44struct config_stub;
1/*
2 * util/config_file.h - reads and stores the config file for unbound.
3 *
4 * Copyright (c) 2007, NLnet Labs. All rights reserved.
5 *
6 * This software is open source.
7 *
8 * Redistribution and use in source and binary forms, with or without

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37 * \file
38 *
39 * This file contains functions for the config file.
40 */
41
42#ifndef UTIL_CONFIG_FILE_H
43#define UTIL_CONFIG_FILE_H
44struct config_stub;
45struct config_auth;
46struct config_view;
45struct config_strlist;
46struct config_str2list;
47struct config_str3list;
48struct config_strbytelist;
49struct module_qstate;
50struct sock_list;
51struct ub_packed_rrset_key;
52struct regional;
53
47struct config_strlist;
48struct config_str2list;
49struct config_str3list;
50struct config_strbytelist;
51struct module_qstate;
52struct sock_list;
53struct ub_packed_rrset_key;
54struct regional;
55
56/** List head for strlist processing, used for append operation. */
57struct config_strlist_head {
58 /** first in list of text items */
59 struct config_strlist* first;
60 /** last in list of text items */
61 struct config_strlist* last;
62};
63
54/**
55 * The configuration options.
56 * Strings are malloced.
57 */
58struct config_file {
59 /** verbosity level as specified in the config file */
60 int verbosity;
61

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78 /** prefer ip6 upstream queries. */
79 int prefer_ip6;
80 /** do udp query support. */
81 int do_udp;
82 /** do tcp query support. */
83 int do_tcp;
84 /** tcp upstream queries (no UDP upstream queries) */
85 int tcp_upstream;
64/**
65 * The configuration options.
66 * Strings are malloced.
67 */
68struct config_file {
69 /** verbosity level as specified in the config file */
70 int verbosity;
71

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88 /** prefer ip6 upstream queries. */
89 int prefer_ip6;
90 /** do udp query support. */
91 int do_udp;
92 /** do tcp query support. */
93 int do_tcp;
94 /** tcp upstream queries (no UDP upstream queries) */
95 int tcp_upstream;
96 /** udp upstream enabled when no UDP downstream is enabled (do_udp no)*/
97 int udp_upstream_without_downstream;
86 /** maximum segment size of tcp socket which queries are answered */
87 int tcp_mss;
88 /** maximum segment size of tcp socket for outgoing queries */
89 int outgoing_tcp_mss;
98 /** maximum segment size of tcp socket which queries are answered */
99 int tcp_mss;
100 /** maximum segment size of tcp socket for outgoing queries */
101 int outgoing_tcp_mss;
102 /** tcp idle timeout, in msec */
103 int tcp_idle_timeout;
104 /** do edns tcp keepalive */
105 int do_tcp_keepalive;
106 /** tcp keepalive timeout, in msec */
107 int tcp_keepalive_timeout;
90
91 /** private key file for dnstcp-ssl service (enabled if not NULL) */
92 char* ssl_service_key;
93 /** public key file for dnstcp-ssl service */
94 char* ssl_service_pem;
95 /** port on which to provide ssl service */
96 int ssl_port;
97 /** if outgoing tcp connections use SSL */
98 int ssl_upstream;
108
109 /** private key file for dnstcp-ssl service (enabled if not NULL) */
110 char* ssl_service_key;
111 /** public key file for dnstcp-ssl service */
112 char* ssl_service_pem;
113 /** port on which to provide ssl service */
114 int ssl_port;
115 /** if outgoing tcp connections use SSL */
116 int ssl_upstream;
117 /** cert bundle for outgoing connections */
118 char* tls_cert_bundle;
119 /** should the system certificate store get added to the cert bundle */
120 int tls_win_cert;
121 /** additional tls ports */
122 struct config_strlist* tls_additional_port;
123 /** secret key used to encrypt and decrypt TLS session ticket */
124 struct config_strlist_head tls_session_ticket_keys;
125 /** TLS ciphers */
126 char* tls_ciphers;
127 /** TLS chiphersuites (TLSv1.3) */
128 char* tls_ciphersuites;
99
100 /** outgoing port range number of ports (per thread) */
101 int outgoing_num_ports;
102 /** number of outgoing tcp buffers per (per thread) */
103 size_t outgoing_num_tcp;
104 /** number of incoming tcp buffers per (per thread) */
105 size_t incoming_num_tcp;
106 /** allowed udp port numbers, array with 0 if not allowed */
107 int* outgoing_avail_ports;
108
109 /** EDNS buffer size to use */
110 size_t edns_buffer_size;
129
130 /** outgoing port range number of ports (per thread) */
131 int outgoing_num_ports;
132 /** number of outgoing tcp buffers per (per thread) */
133 size_t outgoing_num_tcp;
134 /** number of incoming tcp buffers per (per thread) */
135 size_t incoming_num_tcp;
136 /** allowed udp port numbers, array with 0 if not allowed */
137 int* outgoing_avail_ports;
138
139 /** EDNS buffer size to use */
140 size_t edns_buffer_size;
141 /** size of the stream wait buffers, max */
142 size_t stream_wait_size;
111 /** number of bytes buffer size for DNS messages */
112 size_t msg_buffer_size;
113 /** size of the message cache */
114 size_t msg_cache_size;
115 /** slabs in the message cache. */
116 size_t msg_cache_slabs;
117 /** number of queries every thread can service */
118 size_t num_queries_per_thread;

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130 size_t infra_cache_numhosts;
131 /** min value for infra cache rtt */
132 int infra_cache_min_rtt;
133 /** delay close of udp-timeouted ports, if 0 no delayclose. in msec */
134 int delay_close;
135
136 /** the target fetch policy for the iterator */
137 char* target_fetch_policy;
143 /** number of bytes buffer size for DNS messages */
144 size_t msg_buffer_size;
145 /** size of the message cache */
146 size_t msg_cache_size;
147 /** slabs in the message cache. */
148 size_t msg_cache_slabs;
149 /** number of queries every thread can service */
150 size_t num_queries_per_thread;

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162 size_t infra_cache_numhosts;
163 /** min value for infra cache rtt */
164 int infra_cache_min_rtt;
165 /** delay close of udp-timeouted ports, if 0 no delayclose. in msec */
166 int delay_close;
167
168 /** the target fetch policy for the iterator */
169 char* target_fetch_policy;
170 /** percent*10, how many times in 1000 to pick from the fastest
171 * destinations */
172 int fast_server_permil;
173 /** number of fastest server to select from */
174 size_t fast_server_num;
138
139 /** automatic interface for incoming messages. Uses ipv6 remapping,
140 * and recvmsg/sendmsg ancillary data to detect interfaces, boolean */
141 int if_automatic;
142 /** SO_RCVBUF size to set on port 53 UDP socket */
143 size_t so_rcvbuf;
144 /** SO_SNDBUF size to set on port 53 UDP socket */
145 size_t so_sndbuf;

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162 char **out_ifs;
163
164 /** the root hints */
165 struct config_strlist* root_hints;
166 /** the stub definitions, linked list */
167 struct config_stub* stubs;
168 /** the forward zone definitions, linked list */
169 struct config_stub* forwards;
175
176 /** automatic interface for incoming messages. Uses ipv6 remapping,
177 * and recvmsg/sendmsg ancillary data to detect interfaces, boolean */
178 int if_automatic;
179 /** SO_RCVBUF size to set on port 53 UDP socket */
180 size_t so_rcvbuf;
181 /** SO_SNDBUF size to set on port 53 UDP socket */
182 size_t so_sndbuf;

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199 char **out_ifs;
200
201 /** the root hints */
202 struct config_strlist* root_hints;
203 /** the stub definitions, linked list */
204 struct config_stub* stubs;
205 /** the forward zone definitions, linked list */
206 struct config_stub* forwards;
207 /** the auth zone definitions, linked list */
208 struct config_auth* auths;
209 /** the views definitions, linked list */
210 struct config_view* views;
170 /** list of donotquery addresses, linked list */
171 struct config_strlist* donotqueryaddrs;
211 /** list of donotquery addresses, linked list */
212 struct config_strlist* donotqueryaddrs;
213#ifdef CLIENT_SUBNET
214 /** list of servers we send edns-client-subnet option to and
215 * accept option from, linked list */
216 struct config_strlist* client_subnet;
217 /** list of zones we send edns-client-subnet option for */
218 struct config_strlist* client_subnet_zone;
219 /** opcode assigned by IANA for edns0-client-subnet option */
220 uint16_t client_subnet_opcode;
221 /** Do not check whitelist if incoming query contains an ECS record */
222 int client_subnet_always_forward;
223 /** Subnet length we are willing to give up privacy for */
224 uint8_t max_client_subnet_ipv4;
225 uint8_t max_client_subnet_ipv6;
226 /** Minimum subnet length we are willing to answer */
227 uint8_t min_client_subnet_ipv4;
228 uint8_t min_client_subnet_ipv6;
229 /** Max number of nodes in the ECS radix tree */
230 uint32_t max_ecs_tree_size_ipv4;
231 uint32_t max_ecs_tree_size_ipv6;
232#endif
172 /** list of access control entries, linked list */
173 struct config_str2list* acls;
174 /** use default localhost donotqueryaddr entries */
175 int donotquery_localhost;
176
233 /** list of access control entries, linked list */
234 struct config_str2list* acls;
235 /** use default localhost donotqueryaddr entries */
236 int donotquery_localhost;
237
238 /** list of tcp connection limitss, linked list */
239 struct config_str2list* tcp_connection_limits;
240
177 /** harden against very small edns buffer sizes */
178 int harden_short_bufsize;
179 /** harden against very large query sizes */
180 int harden_large_queries;
181 /** harden against spoofed glue (out of zone data) */
182 int harden_glue;
183 /** harden against receiving no DNSSEC data for trust anchor */
184 int harden_dnssec_stripped;

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203 /** the number of seconds minimum TTL used for RRsets and messages */
204 int min_ttl;
205 /** the number of seconds maximal negative TTL for SOA in auth */
206 int max_negative_ttl;
207 /** if prefetching of messages should be performed. */
208 int prefetch;
209 /** if prefetching of DNSKEYs should be performed. */
210 int prefetch_key;
241 /** harden against very small edns buffer sizes */
242 int harden_short_bufsize;
243 /** harden against very large query sizes */
244 int harden_large_queries;
245 /** harden against spoofed glue (out of zone data) */
246 int harden_glue;
247 /** harden against receiving no DNSSEC data for trust anchor */
248 int harden_dnssec_stripped;

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267 /** the number of seconds minimum TTL used for RRsets and messages */
268 int min_ttl;
269 /** the number of seconds maximal negative TTL for SOA in auth */
270 int max_negative_ttl;
271 /** if prefetching of messages should be performed. */
272 int prefetch;
273 /** if prefetching of DNSKEYs should be performed. */
274 int prefetch_key;
275 /** deny queries of type ANY with an empty answer */
276 int deny_any;
211
212 /** chrootdir, if not "" or chroot will be done */
213 char* chrootdir;
214 /** username to change to, if not "". */
215 char* username;
216 /** working directory */
217 char* directory;
218 /** filename to log to. */
219 char* logfile;
220 /** pidfile to write pid to. */
221 char* pidfile;
222
223 /** should log messages be sent to syslogd */
224 int use_syslog;
225 /** log timestamp in ascii UTC */
226 int log_time_ascii;
227 /** log queries with one line per query */
228 int log_queries;
277
278 /** chrootdir, if not "" or chroot will be done */
279 char* chrootdir;
280 /** username to change to, if not "". */
281 char* username;
282 /** working directory */
283 char* directory;
284 /** filename to log to. */
285 char* logfile;
286 /** pidfile to write pid to. */
287 char* pidfile;
288
289 /** should log messages be sent to syslogd */
290 int use_syslog;
291 /** log timestamp in ascii UTC */
292 int log_time_ascii;
293 /** log queries with one line per query */
294 int log_queries;
295 /** log replies with one line per reply */
296 int log_replies;
297 /** tag log_queries and log_replies for filtering */
298 int log_tag_queryreply;
299 /** log every local-zone hit **/
300 int log_local_actions;
301 /** log servfails with a reason */
302 int log_servfail;
303 /** log identity to report */
304 char* log_identity;
229
230 /** do not report identity (id.server, hostname.bind) */
231 int hide_identity;
232 /** do not report version (version.server, version.bind) */
233 int hide_version;
305
306 /** do not report identity (id.server, hostname.bind) */
307 int hide_identity;
308 /** do not report version (version.server, version.bind) */
309 int hide_version;
310 /** do not report trustanchor (trustanchor.unbound) */
311 int hide_trustanchor;
234 /** identity, hostname is returned if "". */
235 char* identity;
236 /** version, package version returned if "". */
237 char* version;
238
239 /** the module configuration string */
240 char* module_conf;
241

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248 /** files with trusted DNSKEYs in named.conf format, list */
249 struct config_strlist* trusted_keys_file_list;
250 /** DLV anchor file */
251 char* dlv_anchor_file;
252 /** DLV anchor inline */
253 struct config_strlist* dlv_anchor_list;
254 /** insecure domain list */
255 struct config_strlist* domain_insecure;
312 /** identity, hostname is returned if "". */
313 char* identity;
314 /** version, package version returned if "". */
315 char* version;
316
317 /** the module configuration string */
318 char* module_conf;
319

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326 /** files with trusted DNSKEYs in named.conf format, list */
327 struct config_strlist* trusted_keys_file_list;
328 /** DLV anchor file */
329 char* dlv_anchor_file;
330 /** DLV anchor inline */
331 struct config_strlist* dlv_anchor_list;
332 /** insecure domain list */
333 struct config_strlist* domain_insecure;
334 /** send key tag query */
335 int trust_anchor_signaling;
336 /** enable root key sentinel */
337 int root_key_sentinel;
256
257 /** if not 0, this value is the validation date for RRSIGs */
258 int32_t val_date_override;
259 /** the minimum for signature clock skew */
260 int32_t val_sig_skew_min;
261 /** the maximum for signature clock skew */
262 int32_t val_sig_skew_max;
263 /** this value sets the number of seconds before revalidating bogus */
264 int bogus_ttl;
265 /** should validator clean additional section for secure msgs */
266 int val_clean_additional;
267 /** log bogus messages by the validator */
268 int val_log_level;
269 /** squelch val_log_level to log - this is library goes to callback */
270 int val_log_squelch;
271 /** should validator allow bogus messages to go through */
272 int val_permissive_mode;
338
339 /** if not 0, this value is the validation date for RRSIGs */
340 int32_t val_date_override;
341 /** the minimum for signature clock skew */
342 int32_t val_sig_skew_min;
343 /** the maximum for signature clock skew */
344 int32_t val_sig_skew_max;
345 /** this value sets the number of seconds before revalidating bogus */
346 int bogus_ttl;
347 /** should validator clean additional section for secure msgs */
348 int val_clean_additional;
349 /** log bogus messages by the validator */
350 int val_log_level;
351 /** squelch val_log_level to log - this is library goes to callback */
352 int val_log_squelch;
353 /** should validator allow bogus messages to go through */
354 int val_permissive_mode;
355 /** use cached NSEC records to synthesise (negative) answers */
356 int aggressive_nsec;
273 /** ignore the CD flag in incoming queries and refuse them bogus data */
274 int ignore_cd;
357 /** ignore the CD flag in incoming queries and refuse them bogus data */
358 int ignore_cd;
359 /** serve expired entries and prefetch them */
360 int serve_expired;
361 /** serve expired entries until TTL after expiration */
362 int serve_expired_ttl;
363 /** reset serve expired TTL after failed update attempt */
364 int serve_expired_ttl_reset;
275 /** nsec3 maximum iterations per key size, string */
276 char* val_nsec3_key_iterations;
277 /** autotrust add holddown time, in seconds */
278 unsigned int add_holddown;
279 /** autotrust del holddown time, in seconds */
280 unsigned int del_holddown;
281 /** autotrust keep_missing time, in seconds. 0 is forever. */
282 unsigned int keep_missing;

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289 size_t key_cache_slabs;
290 /** size of the neg cache */
291 size_t neg_cache_size;
292
293 /** local zones config */
294 struct config_str2list* local_zones;
295 /** local zones nodefault list */
296 struct config_strlist* local_zones_nodefault;
365 /** nsec3 maximum iterations per key size, string */
366 char* val_nsec3_key_iterations;
367 /** autotrust add holddown time, in seconds */
368 unsigned int add_holddown;
369 /** autotrust del holddown time, in seconds */
370 unsigned int del_holddown;
371 /** autotrust keep_missing time, in seconds. 0 is forever. */
372 unsigned int keep_missing;

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379 size_t key_cache_slabs;
380 /** size of the neg cache */
381 size_t neg_cache_size;
382
383 /** local zones config */
384 struct config_str2list* local_zones;
385 /** local zones nodefault list */
386 struct config_strlist* local_zones_nodefault;
387#ifdef USE_IPSET
388 /** local zones ipset list */
389 struct config_strlist* local_zones_ipset;
390#endif
391 /** do not add any default local zone */
392 int local_zones_disable_default;
297 /** local data RRs configured */
298 struct config_strlist* local_data;
299 /** local zone override types per netblock */
300 struct config_str3list* local_zone_overrides;
301 /** unblock lan zones (reverse lookups for AS112 zones) */
302 int unblock_lan_zones;
303 /** insecure lan zones (don't validate AS112 zones) */
304 int insecure_lan_zones;
305 /** list of zonename, tagbitlist */
306 struct config_strbytelist* local_zone_tags;
307 /** list of aclname, tagbitlist */
308 struct config_strbytelist* acl_tags;
309 /** list of aclname, tagname, localzonetype */
310 struct config_str3list* acl_tag_actions;
311 /** list of aclname, tagname, redirectdata */
312 struct config_str3list* acl_tag_datas;
393 /** local data RRs configured */
394 struct config_strlist* local_data;
395 /** local zone override types per netblock */
396 struct config_str3list* local_zone_overrides;
397 /** unblock lan zones (reverse lookups for AS112 zones) */
398 int unblock_lan_zones;
399 /** insecure lan zones (don't validate AS112 zones) */
400 int insecure_lan_zones;
401 /** list of zonename, tagbitlist */
402 struct config_strbytelist* local_zone_tags;
403 /** list of aclname, tagbitlist */
404 struct config_strbytelist* acl_tags;
405 /** list of aclname, tagname, localzonetype */
406 struct config_str3list* acl_tag_actions;
407 /** list of aclname, tagname, redirectdata */
408 struct config_str3list* acl_tag_datas;
409 /** list of aclname, view*/
410 struct config_str2list* acl_view;
411 /** list of IP-netblock, tagbitlist */
412 struct config_strbytelist* respip_tags;
413 /** list of response-driven access control entries, linked list */
414 struct config_str2list* respip_actions;
415 /** RRs configured for response-driven access controls */
416 struct config_str2list* respip_data;
313 /** tag list, array with tagname[i] is malloced string */
314 char** tagname;
315 /** number of items in the taglist */
316 int num_tags;
317
318 /** remote control section. enable toggle. */
319 int remote_control_enable;
320 /** the interfaces the remote control should listen on */
417 /** tag list, array with tagname[i] is malloced string */
418 char** tagname;
419 /** number of items in the taglist */
420 int num_tags;
421
422 /** remote control section. enable toggle. */
423 int remote_control_enable;
424 /** the interfaces the remote control should listen on */
321 struct config_strlist* control_ifs;
425 struct config_strlist_head control_ifs;
426 /** if the use-cert option is set */
427 int control_use_cert;
322 /** port number for the control port */
323 int control_port;
428 /** port number for the control port */
429 int control_port;
324 /** use certificates for remote control */
325 int remote_control_use_cert;
326 /** private key file for server */
327 char* server_key_file;
328 /** certificate file for server */
329 char* server_cert_file;
330 /** private key file for unbound-control */
331 char* control_key_file;
332 /** certificate file for unbound-control */
333 char* control_cert_file;
334
335 /** Python script file */
430 /** private key file for server */
431 char* server_key_file;
432 /** certificate file for server */
433 char* server_cert_file;
434 /** private key file for unbound-control */
435 char* control_key_file;
436 /** certificate file for unbound-control */
437 char* control_cert_file;
438
439 /** Python script file */
336 char* python_script;
440 struct config_strlist* python_script;
337
441
442 /** Use systemd socket activation. */
443 int use_systemd;
444
338 /** daemonize, i.e. fork into the background. */
339 int do_daemonize;
340
341 /* minimal response when positive answer */
342 int minimal_responses;
343
344 /* RRSet roundrobin */
345 int rrset_roundrobin;
346
445 /** daemonize, i.e. fork into the background. */
446 int do_daemonize;
447
448 /* minimal response when positive answer */
449 int minimal_responses;
450
451 /* RRSet roundrobin */
452 int rrset_roundrobin;
453
454 /* wait time for unknown server in msec */
455 int unknown_server_time_limit;
456
347 /* maximum UDP response size */
348 size_t max_udp_size;
349
350 /* DNS64 prefix */
351 char* dns64_prefix;
352
353 /* Synthetize all AAAA record despite the presence of an authoritative one */
354 int dns64_synthall;
457 /* maximum UDP response size */
458 size_t max_udp_size;
459
460 /* DNS64 prefix */
461 char* dns64_prefix;
462
463 /* Synthetize all AAAA record despite the presence of an authoritative one */
464 int dns64_synthall;
465 /** ignore AAAAs for these domain names and use A record anyway */
466 struct config_strlist* dns64_ignore_aaaa;
355
356 /** true to enable dnstap support */
357 int dnstap;
358 /** dnstap socket path */
359 char* dnstap_socket_path;
360 /** true to send "identity" via dnstap */
361 int dnstap_send_identity;
362 /** true to send "version" via dnstap */

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377 /** true to log dnstap FORWARDER_QUERY message events */
378 int dnstap_log_forwarder_query_messages;
379 /** true to log dnstap FORWARDER_RESPONSE message events */
380 int dnstap_log_forwarder_response_messages;
381
382 /** true to disable DNSSEC lameness check in iterator */
383 int disable_dnssec_lame_check;
384
467
468 /** true to enable dnstap support */
469 int dnstap;
470 /** dnstap socket path */
471 char* dnstap_socket_path;
472 /** true to send "identity" via dnstap */
473 int dnstap_send_identity;
474 /** true to send "version" via dnstap */

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489 /** true to log dnstap FORWARDER_QUERY message events */
490 int dnstap_log_forwarder_query_messages;
491 /** true to log dnstap FORWARDER_RESPONSE message events */
492 int dnstap_log_forwarder_response_messages;
493
494 /** true to disable DNSSEC lameness check in iterator */
495 int disable_dnssec_lame_check;
496
385 /** ratelimit 0 is off, otherwise qps (unless overridden) */
497 /** ratelimit for ip addresses. 0 is off, otherwise qps (unless overridden) */
498 int ip_ratelimit;
499 /** number of slabs for ip_ratelimit cache */
500 size_t ip_ratelimit_slabs;
501 /** memory size in bytes for ip_ratelimit cache */
502 size_t ip_ratelimit_size;
503 /** ip_ratelimit factor, 0 blocks all, 10 allows 1/10 of traffic */
504 int ip_ratelimit_factor;
505
506 /** ratelimit for domains. 0 is off, otherwise qps (unless overridden) */
386 int ratelimit;
387 /** number of slabs for ratelimit cache */
388 size_t ratelimit_slabs;
389 /** memory size in bytes for ratelimit cache */
390 size_t ratelimit_size;
391 /** ratelimits for domain (exact match) */
392 struct config_str2list* ratelimit_for_domain;
393 /** ratelimits below domain */
394 struct config_str2list* ratelimit_below_domain;
395 /** ratelimit factor, 0 blocks all, 10 allows 1/10 of traffic */
396 int ratelimit_factor;
397 /** minimise outgoing QNAME and hide original QTYPE if possible */
398 int qname_minimisation;
507 int ratelimit;
508 /** number of slabs for ratelimit cache */
509 size_t ratelimit_slabs;
510 /** memory size in bytes for ratelimit cache */
511 size_t ratelimit_size;
512 /** ratelimits for domain (exact match) */
513 struct config_str2list* ratelimit_for_domain;
514 /** ratelimits below domain */
515 struct config_str2list* ratelimit_below_domain;
516 /** ratelimit factor, 0 blocks all, 10 allows 1/10 of traffic */
517 int ratelimit_factor;
518 /** minimise outgoing QNAME and hide original QTYPE if possible */
519 int qname_minimisation;
520 /** minimise QNAME in strict mode, minimise according to RFC.
521 * Do not apply fallback */
522 int qname_minimisation_strict;
523 /** SHM data - true if shm is enabled */
524 int shm_enable;
525 /** SHM data - key for the shm */
526 int shm_key;
527
528 /** DNSCrypt */
529 /** true to enable dnscrypt */
530 int dnscrypt;
531 /** port on which to provide dnscrypt service */
532 int dnscrypt_port;
533 /** provider name 2.dnscrypt-cert.example.com */
534 char* dnscrypt_provider;
535 /** dnscrypt secret keys 1.key */
536 struct config_strlist* dnscrypt_secret_key;
537 /** dnscrypt provider certs 1.cert */
538 struct config_strlist* dnscrypt_provider_cert;
539 /** dnscrypt provider certs 1.cert which have been rotated and should not be
540 * advertised through DNS's providername TXT record but are required to be
541 * able to handle existing traffic using the old cert. */
542 struct config_strlist* dnscrypt_provider_cert_rotated;
543 /** memory size in bytes for dnscrypt shared secrets cache */
544 size_t dnscrypt_shared_secret_cache_size;
545 /** number of slabs for dnscrypt shared secrets cache */
546 size_t dnscrypt_shared_secret_cache_slabs;
547 /** memory size in bytes for dnscrypt nonces cache */
548 size_t dnscrypt_nonce_cache_size;
549 /** number of slabs for dnscrypt nonces cache */
550 size_t dnscrypt_nonce_cache_slabs;
551 /** IPsec module */
552#ifdef USE_IPSECMOD
553 /** false to bypass the IPsec module */
554 int ipsecmod_enabled;
555 /** whitelisted domains for ipsecmod */
556 struct config_strlist* ipsecmod_whitelist;
557 /** path to external hook */
558 char* ipsecmod_hook;
559 /** true to proceed even with a bogus IPSECKEY */
560 int ipsecmod_ignore_bogus;
561 /** max TTL for the A/AAAA records that call the hook */
562 int ipsecmod_max_ttl;
563 /** false to proceed even when ipsecmod_hook fails */
564 int ipsecmod_strict;
565#endif
566
567 /* cachedb module */
568#ifdef USE_CACHEDB
569 /** backend DB name */
570 char* cachedb_backend;
571 /** secret seed for hash key calculation */
572 char* cachedb_secret;
573#ifdef USE_REDIS
574 /** redis server's IP address or host name */
575 char* redis_server_host;
576 /** redis server's TCP port */
577 int redis_server_port;
578 /** timeout (in ms) for communication with the redis server */
579 int redis_timeout;
580#endif
581#endif
582
583 /* ipset module */
584#ifdef USE_IPSET
585 char* ipset_name_v4;
586 char* ipset_name_v6;
587#endif
399};
400
588};
589
401/** from cfg username, after daemonise setup performed */
590/** from cfg username, after daemonize setup performed */
402extern uid_t cfg_uid;
591extern uid_t cfg_uid;
403/** from cfg username, after daemonise setup performed */
592/** from cfg username, after daemonize setup performed */
404extern gid_t cfg_gid;
405/** debug and enable small timeouts */
406extern int autr_permit_small_holddown;
593extern gid_t cfg_gid;
594/** debug and enable small timeouts */
595extern int autr_permit_small_holddown;
596/** size (in bytes) of stream wait buffers max */
597extern size_t stream_wait_max;
407
408/**
409 * Stub config options
410 */
411struct config_stub {
412 /** next in list */
413 struct config_stub* next;
414 /** domain name (in text) of the stub apex domain */
415 char* name;
416 /** list of stub nameserver hosts (domain name) */
417 struct config_strlist* hosts;
418 /** list of stub nameserver addresses (IP address) */
419 struct config_strlist* addrs;
420 /** if stub-prime is set */
421 int isprime;
422 /** if forward-first is set (failover to without if fails) */
423 int isfirst;
598
599/**
600 * Stub config options
601 */
602struct config_stub {
603 /** next in list */
604 struct config_stub* next;
605 /** domain name (in text) of the stub apex domain */
606 char* name;
607 /** list of stub nameserver hosts (domain name) */
608 struct config_strlist* hosts;
609 /** list of stub nameserver addresses (IP address) */
610 struct config_strlist* addrs;
611 /** if stub-prime is set */
612 int isprime;
613 /** if forward-first is set (failover to without if fails) */
614 int isfirst;
615 /** use SSL for queries to this stub */
616 int ssl_upstream;
617 /*** no cache */
618 int no_cache;
424};
425
426/**
619};
620
621/**
622 * Auth config options
623 */
624struct config_auth {
625 /** next in list */
626 struct config_auth* next;
627 /** domain name (in text) of the auth apex domain */
628 char* name;
629 /** list of masters */
630 struct config_strlist* masters;
631 /** list of urls */
632 struct config_strlist* urls;
633 /** list of allow-notify */
634 struct config_strlist* allow_notify;
635 /** zonefile (or NULL) */
636 char* zonefile;
637 /** provide downstream answers */
638 int for_downstream;
639 /** provide upstream answers */
640 int for_upstream;
641 /** fallback to recursion to authorities if zone expired and other
642 * reasons perhaps (like, query bogus) */
643 int fallback_enabled;
644};
645
646/**
647 * View config options
648 */
649struct config_view {
650 /** next in list */
651 struct config_view* next;
652 /** view name */
653 char* name;
654 /** local zones */
655 struct config_str2list* local_zones;
656 /** local data RRs */
657 struct config_strlist* local_data;
658 /** local zones nodefault list */
659 struct config_strlist* local_zones_nodefault;
660#ifdef USE_IPSET
661 /** local zones ipset list */
662 struct config_strlist* local_zones_ipset;
663#endif
664 /** Fallback to global local_zones when there is no match in the view
665 * view specific tree. 1 for yes, 0 for no */
666 int isfirst;
667 /** predefined actions for particular IP address responses */
668 struct config_str2list* respip_actions;
669 /** data complementing the 'redirect' response IP actions */
670 struct config_str2list* respip_data;
671};
672
673/**
427 * List of strings for config options
428 */
429struct config_strlist {
430 /** next item in list */
431 struct config_strlist* next;
432 /** config option string */
433 char* str;
434};

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468 struct config_strbytelist* next;
469 /** first string */
470 char* str;
471 /** second bytestring */
472 uint8_t* str2;
473 size_t str2len;
474};
475
674 * List of strings for config options
675 */
676struct config_strlist {
677 /** next item in list */
678 struct config_strlist* next;
679 /** config option string */
680 char* str;
681};

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715 struct config_strbytelist* next;
716 /** first string */
717 char* str;
718 /** second bytestring */
719 uint8_t* str2;
720 size_t str2len;
721};
722
476/** List head for strlist processing, used for append operation. */
477struct config_strlist_head {
478 /** first in list of text items */
479 struct config_strlist* first;
480 /** last in list of text items */
481 struct config_strlist* last;
482};
483
484/**
485 * Create config file structure. Filled with default values.
486 * @return: the new structure or NULL on memory error.
487 */
488struct config_file* config_create(void);
489
490/**
491 * Create config file structure for library use. Filled with default values.

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586 */
587char* config_collate_cat(struct config_strlist* list);
588
589/**
590 * Append text at end of list.
591 * @param list: list head. zeroed at start.
592 * @param item: new item. malloced by caller. if NULL the insertion fails.
593 * @return true on success.
723/**
724 * Create config file structure. Filled with default values.
725 * @return: the new structure or NULL on memory error.
726 */
727struct config_file* config_create(void);
728
729/**
730 * Create config file structure for library use. Filled with default values.

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825 */
826char* config_collate_cat(struct config_strlist* list);
827
828/**
829 * Append text at end of list.
830 * @param list: list head. zeroed at start.
831 * @param item: new item. malloced by caller. if NULL the insertion fails.
832 * @return true on success.
833 * on fail the item is free()ed.
594 */
595int cfg_strlist_append(struct config_strlist_head* list, char* item);
596
597/**
834 */
835int cfg_strlist_append(struct config_strlist_head* list, char* item);
836
837/**
838 * Searches the end of a string list and appends the given text.
839 * @param head: pointer to strlist head variable.
840 * @param item: new item. malloced by caller. if NULL the insertion fails.
841 * @return true on success.
842 */
843int cfg_strlist_append_ex(struct config_strlist** head, char* item);
844
845/**
846 * Find string in strlist.
847 * @param head: pointer to strlist head variable.
848 * @param item: the item to search for.
849 * @return: the element in the list when found, NULL otherwise.
850 */
851struct config_strlist* cfg_strlist_find(struct config_strlist* head,
852 const char* item);
853
854/**
598 * Insert string into strlist.
599 * @param head: pointer to strlist head variable.
600 * @param item: new item. malloced by caller. If NULL the insertion fails.
601 * @return: true on success.
855 * Insert string into strlist.
856 * @param head: pointer to strlist head variable.
857 * @param item: new item. malloced by caller. If NULL the insertion fails.
858 * @return: true on success.
859 * on fail, the item is free()d.
602 */
603int cfg_strlist_insert(struct config_strlist** head, char* item);
604
605/** insert with region for allocation. */
606int cfg_region_strlist_insert(struct regional* region,
607 struct config_strlist** head, char* item);
608
609/**
610 * Insert string into str2list.
611 * @param head: pointer to str2list head variable.
612 * @param item: new item. malloced by caller. If NULL the insertion fails.
613 * @param i2: 2nd string, malloced by caller. If NULL the insertion fails.
614 * @return: true on success.
860 */
861int cfg_strlist_insert(struct config_strlist** head, char* item);
862
863/** insert with region for allocation. */
864int cfg_region_strlist_insert(struct regional* region,
865 struct config_strlist** head, char* item);
866
867/**
868 * Insert string into str2list.
869 * @param head: pointer to str2list head variable.
870 * @param item: new item. malloced by caller. If NULL the insertion fails.
871 * @param i2: 2nd string, malloced by caller. If NULL the insertion fails.
872 * @return: true on success.
873 * on fail, the item and i2 are free()d.
615 */
616int cfg_str2list_insert(struct config_str2list** head, char* item, char* i2);
617
618/**
619 * Insert string into str3list.
620 * @param head: pointer to str3list head variable.
621 * @param item: new item. malloced by caller. If NULL the insertion fails.
622 * @param i2: 2nd string, malloced by caller. If NULL the insertion fails.

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677
678/**
679 * Delete items in config stub list.
680 * @param list: list.
681 */
682void config_delstubs(struct config_stub* list);
683
684/**
874 */
875int cfg_str2list_insert(struct config_str2list** head, char* item, char* i2);
876
877/**
878 * Insert string into str3list.
879 * @param head: pointer to str3list head variable.
880 * @param item: new item. malloced by caller. If NULL the insertion fails.
881 * @param i2: 2nd string, malloced by caller. If NULL the insertion fails.

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936
937/**
938 * Delete items in config stub list.
939 * @param list: list.
940 */
941void config_delstubs(struct config_stub* list);
942
943/**
944 * Delete an auth item
945 * @param p: auth item
946 */
947void config_delauth(struct config_auth* p);
948
949/**
950 * Delete items in config auth list.
951 * @param list: list.
952 */
953void config_delauths(struct config_auth* list);
954
955/**
956 * Delete a view item
957 * @param p: view item
958 */
959void config_delview(struct config_view* p);
960
961/**
962 * Delete items in config view list.
963 * @param list: list.
964 */
965void config_delviews(struct config_view* list);
966
967/** check if config for remote control turns on IP-address interface
968 * with certificates or a named pipe without certificates. */
969int options_remote_is_address(struct config_file* cfg);
970
971/**
685 * Convert 14digit to time value
686 * @param str: string of 14 digits
687 * @return time value or 0 for error.
688 */
689time_t cfg_convert_timeval(const char* str);
690
691/**
692 * Count number of values in the string.

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843 * @param qstate: query state.
844 * @param str: explanation string
845 * @param dname: the dname.
846 */
847void errinf_dname(struct module_qstate* qstate, const char* str,
848 uint8_t* dname);
849
850/**
972 * Convert 14digit to time value
973 * @param str: string of 14 digits
974 * @return time value or 0 for error.
975 */
976time_t cfg_convert_timeval(const char* str);
977
978/**
979 * Count number of values in the string.

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1130 * @param qstate: query state.
1131 * @param str: explanation string
1132 * @param dname: the dname.
1133 */
1134void errinf_dname(struct module_qstate* qstate, const char* str,
1135 uint8_t* dname);
1136
1137/**
851 * Create error info in string
1138 * Create error info in string. For validation failures.
852 * @param qstate: query state.
853 * @return string or NULL on malloc failure (already logged).
854 * This string is malloced and has to be freed by caller.
855 */
1139 * @param qstate: query state.
1140 * @return string or NULL on malloc failure (already logged).
1141 * This string is malloced and has to be freed by caller.
1142 */
856char* errinf_to_str(struct module_qstate* qstate);
1143char* errinf_to_str_bogus(struct module_qstate* qstate);
857
858/**
1144
1145/**
1146 * Create error info in string. For other servfails.
1147 * @param qstate: query state.
1148 * @return string or NULL on malloc failure (already logged).
1149 * This string is malloced and has to be freed by caller.
1150 */
1151char* errinf_to_str_servfail(struct module_qstate* qstate);
1152
1153/**
859 * Used during options parsing
860 */
861struct config_parser_state {
862 /** name of file being parser */
863 char* filename;
864 /** line number in the file, starts at 1 */
865 int line;
866 /** number of errors encountered */

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899 * exist on an error (logged with log_err) was encountered.
900 */
901char* w_lookup_reg_str(const char* key, const char* name);
902
903/** Modify directory in options for module file name */
904void w_config_adjust_directory(struct config_file* cfg);
905#endif /* UB_ON_WINDOWS */
906
1154 * Used during options parsing
1155 */
1156struct config_parser_state {
1157 /** name of file being parser */
1158 char* filename;
1159 /** line number in the file, starts at 1 */
1160 int line;
1161 /** number of errors encountered */

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1194 * exist on an error (logged with log_err) was encountered.
1195 */
1196char* w_lookup_reg_str(const char* key, const char* name);
1197
1198/** Modify directory in options for module file name */
1199void w_config_adjust_directory(struct config_file* cfg);
1200#endif /* UB_ON_WINDOWS */
1201
1202/** debug option for unit tests. */
1203extern int fake_dsa, fake_sha1;
1204
907#endif /* UTIL_CONFIG_FILE_H */
1205#endif /* UTIL_CONFIG_FILE_H */
1206