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| -rw-r--r-- | external/unbound/util/config_file.h | 1009 |
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diff --git a/external/unbound/util/config_file.h b/external/unbound/util/config_file.h deleted file mode 100644 index 79b094894..000000000 --- a/external/unbound/util/config_file.h +++ /dev/null @@ -1,1009 +0,0 @@ -/* - * util/config_file.h - reads and stores the config file for unbound. - * - * Copyright (c) 2007, NLnet Labs. All rights reserved. - * - * This software is open source. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * - * Neither the name of the NLNET LABS nor the names of its contributors may - * be used to endorse or promote products derived from this software without - * specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/** - * \file - * - * This file contains functions for the config file. - */ - -#ifndef UTIL_CONFIG_FILE_H -#define UTIL_CONFIG_FILE_H -struct config_stub; -struct config_view; -struct config_strlist; -struct config_str2list; -struct config_str3list; -struct config_strbytelist; -struct module_qstate; -struct sock_list; -struct ub_packed_rrset_key; -struct regional; - -/** - * The configuration options. - * Strings are malloced. - */ -struct config_file { - /** verbosity level as specified in the config file */ - int verbosity; - - /** statistics interval (in seconds) */ - int stat_interval; - /** if false, statistics values are reset after printing them */ - int stat_cumulative; - /** if true, the statistics are kept in greater detail */ - int stat_extended; - - /** number of threads to create */ - int num_threads; - - /** port on which queries are answered. */ - int port; - /** do ip4 query support. */ - int do_ip4; - /** do ip6 query support. */ - int do_ip6; - /** prefer ip6 upstream queries. */ - int prefer_ip6; - /** do udp query support. */ - int do_udp; - /** do tcp query support. */ - int do_tcp; - /** tcp upstream queries (no UDP upstream queries) */ - int tcp_upstream; - /** maximum segment size of tcp socket which queries are answered */ - int tcp_mss; - /** maximum segment size of tcp socket for outgoing queries */ - int outgoing_tcp_mss; - - /** private key file for dnstcp-ssl service (enabled if not NULL) */ - char* ssl_service_key; - /** public key file for dnstcp-ssl service */ - char* ssl_service_pem; - /** port on which to provide ssl service */ - int ssl_port; - /** if outgoing tcp connections use SSL */ - int ssl_upstream; - - /** outgoing port range number of ports (per thread) */ - int outgoing_num_ports; - /** number of outgoing tcp buffers per (per thread) */ - size_t outgoing_num_tcp; - /** number of incoming tcp buffers per (per thread) */ - size_t incoming_num_tcp; - /** allowed udp port numbers, array with 0 if not allowed */ - int* outgoing_avail_ports; - - /** EDNS buffer size to use */ - size_t edns_buffer_size; - /** number of bytes buffer size for DNS messages */ - size_t msg_buffer_size; - /** size of the message cache */ - size_t msg_cache_size; - /** slabs in the message cache. */ - size_t msg_cache_slabs; - /** number of queries every thread can service */ - size_t num_queries_per_thread; - /** number of msec to wait before items can be jostled out */ - size_t jostle_time; - /** size of the rrset cache */ - size_t rrset_cache_size; - /** slabs in the rrset cache */ - size_t rrset_cache_slabs; - /** host cache ttl in seconds */ - int host_ttl; - /** number of slabs in the infra host cache */ - size_t infra_cache_slabs; - /** max number of hosts in the infra cache */ - size_t infra_cache_numhosts; - /** min value for infra cache rtt */ - int infra_cache_min_rtt; - /** delay close of udp-timeouted ports, if 0 no delayclose. in msec */ - int delay_close; - - /** the target fetch policy for the iterator */ - char* target_fetch_policy; - - /** automatic interface for incoming messages. Uses ipv6 remapping, - * and recvmsg/sendmsg ancillary data to detect interfaces, boolean */ - int if_automatic; - /** SO_RCVBUF size to set on port 53 UDP socket */ - size_t so_rcvbuf; - /** SO_SNDBUF size to set on port 53 UDP socket */ - size_t so_sndbuf; - /** SO_REUSEPORT requested on port 53 sockets */ - int so_reuseport; - /** IP_TRANSPARENT socket option requested on port 53 sockets */ - int ip_transparent; - /** IP_FREEBIND socket option request on port 53 sockets */ - int ip_freebind; - - /** number of interfaces to open. If 0 default all interfaces. */ - int num_ifs; - /** interface description strings (IP addresses) */ - char **ifs; - - /** number of outgoing interfaces to open. - * If 0 default all interfaces. */ - int num_out_ifs; - /** outgoing interface description strings (IP addresses) */ - char **out_ifs; - - /** the root hints */ - struct config_strlist* root_hints; - /** the stub definitions, linked list */ - struct config_stub* stubs; - /** the forward zone definitions, linked list */ - struct config_stub* forwards; - /** the views definitions, linked list */ - struct config_view* views; - /** list of donotquery addresses, linked list */ - struct config_strlist* donotqueryaddrs; -#ifdef CLIENT_SUBNET - /** list of servers we send edns-client-subnet option to and - * accept option from, linked list */ - struct config_strlist* client_subnet; - /** opcode assigned by IANA for edns0-client-subnet option */ - uint16_t client_subnet_opcode; - /** Do not check whitelist if incoming query contains an ECS record */ - int client_subnet_always_forward; - /** Subnet length we are willing to give up privacy for */ - uint8_t max_client_subnet_ipv4; - uint8_t max_client_subnet_ipv6; -#endif - /** list of access control entries, linked list */ - struct config_str2list* acls; - /** use default localhost donotqueryaddr entries */ - int donotquery_localhost; - - /** harden against very small edns buffer sizes */ - int harden_short_bufsize; - /** harden against very large query sizes */ - int harden_large_queries; - /** harden against spoofed glue (out of zone data) */ - int harden_glue; - /** harden against receiving no DNSSEC data for trust anchor */ - int harden_dnssec_stripped; - /** harden against queries that fall under known nxdomain names */ - int harden_below_nxdomain; - /** harden the referral path, query for NS,A,AAAA and validate */ - int harden_referral_path; - /** harden against algorithm downgrade */ - int harden_algo_downgrade; - /** use 0x20 bits in query as random ID bits */ - int use_caps_bits_for_id; - /** 0x20 whitelist, domains that do not use capsforid */ - struct config_strlist* caps_whitelist; - /** strip away these private addrs from answers, no DNS Rebinding */ - struct config_strlist* private_address; - /** allow domain (and subdomains) to use private address space */ - struct config_strlist* private_domain; - /** what threshold for unwanted action. */ - size_t unwanted_threshold; - /** the number of seconds maximal TTL used for RRsets and messages */ - int max_ttl; - /** the number of seconds minimum TTL used for RRsets and messages */ - int min_ttl; - /** the number of seconds maximal negative TTL for SOA in auth */ - int max_negative_ttl; - /** if prefetching of messages should be performed. */ - int prefetch; - /** if prefetching of DNSKEYs should be performed. */ - int prefetch_key; - - /** chrootdir, if not "" or chroot will be done */ - char* chrootdir; - /** username to change to, if not "". */ - char* username; - /** working directory */ - char* directory; - /** filename to log to. */ - char* logfile; - /** pidfile to write pid to. */ - char* pidfile; - - /** should log messages be sent to syslogd */ - int use_syslog; - /** log timestamp in ascii UTC */ - int log_time_ascii; - /** log queries with one line per query */ - int log_queries; - /** log replies with one line per reply */ - int log_replies; - /** log identity to report */ - char* log_identity; - - /** do not report identity (id.server, hostname.bind) */ - int hide_identity; - /** do not report version (version.server, version.bind) */ - int hide_version; - /** do not report trustanchor (trustanchor.unbound) */ - int hide_trustanchor; - /** identity, hostname is returned if "". */ - char* identity; - /** version, package version returned if "". */ - char* version; - - /** the module configuration string */ - char* module_conf; - - /** files with trusted DS and DNSKEYs in zonefile format, list */ - struct config_strlist* trust_anchor_file_list; - /** list of trustanchor keys, linked list */ - struct config_strlist* trust_anchor_list; - /** files with 5011 autotrust tracked keys */ - struct config_strlist* auto_trust_anchor_file_list; - /** files with trusted DNSKEYs in named.conf format, list */ - struct config_strlist* trusted_keys_file_list; - /** DLV anchor file */ - char* dlv_anchor_file; - /** DLV anchor inline */ - struct config_strlist* dlv_anchor_list; - /** insecure domain list */ - struct config_strlist* domain_insecure; - - /** if not 0, this value is the validation date for RRSIGs */ - int32_t val_date_override; - /** the minimum for signature clock skew */ - int32_t val_sig_skew_min; - /** the maximum for signature clock skew */ - int32_t val_sig_skew_max; - /** this value sets the number of seconds before revalidating bogus */ - int bogus_ttl; - /** should validator clean additional section for secure msgs */ - int val_clean_additional; - /** log bogus messages by the validator */ - int val_log_level; - /** squelch val_log_level to log - this is library goes to callback */ - int val_log_squelch; - /** should validator allow bogus messages to go through */ - int val_permissive_mode; - /** ignore the CD flag in incoming queries and refuse them bogus data */ - int ignore_cd; - /** serve expired entries and prefetch them */ - int serve_expired; - /** nsec3 maximum iterations per key size, string */ - char* val_nsec3_key_iterations; - /** autotrust add holddown time, in seconds */ - unsigned int add_holddown; - /** autotrust del holddown time, in seconds */ - unsigned int del_holddown; - /** autotrust keep_missing time, in seconds. 0 is forever. */ - unsigned int keep_missing; - /** permit small holddown values, allowing 5011 rollover very fast */ - int permit_small_holddown; - - /** size of the key cache */ - size_t key_cache_size; - /** slabs in the key cache. */ - size_t key_cache_slabs; - /** size of the neg cache */ - size_t neg_cache_size; - - /** local zones config */ - struct config_str2list* local_zones; - /** local zones nodefault list */ - struct config_strlist* local_zones_nodefault; - /** local data RRs configured */ - struct config_strlist* local_data; - /** local zone override types per netblock */ - struct config_str3list* local_zone_overrides; - /** unblock lan zones (reverse lookups for AS112 zones) */ - int unblock_lan_zones; - /** insecure lan zones (don't validate AS112 zones) */ - int insecure_lan_zones; - /** list of zonename, tagbitlist */ - struct config_strbytelist* local_zone_tags; - /** list of aclname, tagbitlist */ - struct config_strbytelist* acl_tags; - /** list of aclname, tagname, localzonetype */ - struct config_str3list* acl_tag_actions; - /** list of aclname, tagname, redirectdata */ - struct config_str3list* acl_tag_datas; - /** list of aclname, view*/ - struct config_str2list* acl_view; - /** list of IP-netblock, tagbitlist */ - struct config_strbytelist* respip_tags; - /** list of response-driven access control entries, linked list */ - struct config_str2list* respip_actions; - /** RRs configured for response-driven access controls */ - struct config_str2list* respip_data; - /** tag list, array with tagname[i] is malloced string */ - char** tagname; - /** number of items in the taglist */ - int num_tags; - - /** remote control section. enable toggle. */ - int remote_control_enable; - /** the interfaces the remote control should listen on */ - struct config_strlist* control_ifs; - /** port number for the control port */ - int control_port; - /** use certificates for remote control */ - int remote_control_use_cert; - /** private key file for server */ - char* server_key_file; - /** certificate file for server */ - char* server_cert_file; - /** private key file for unbound-control */ - char* control_key_file; - /** certificate file for unbound-control */ - char* control_cert_file; - - /** Python script file */ - char* python_script; - - /** Use systemd socket activation. */ - int use_systemd; - - /** daemonize, i.e. fork into the background. */ - int do_daemonize; - - /* minimal response when positive answer */ - int minimal_responses; - - /* RRSet roundrobin */ - int rrset_roundrobin; - - /* maximum UDP response size */ - size_t max_udp_size; - - /* DNS64 prefix */ - char* dns64_prefix; - - /* Synthetize all AAAA record despite the presence of an authoritative one */ - int dns64_synthall; - - /** true to enable dnstap support */ - int dnstap; - /** dnstap socket path */ - char* dnstap_socket_path; - /** true to send "identity" via dnstap */ - int dnstap_send_identity; - /** true to send "version" via dnstap */ - int dnstap_send_version; - /** dnstap "identity", hostname is used if "". */ - char* dnstap_identity; - /** dnstap "version", package version is used if "". */ - char* dnstap_version; - - /** true to log dnstap RESOLVER_QUERY message events */ - int dnstap_log_resolver_query_messages; - /** true to log dnstap RESOLVER_RESPONSE message events */ - int dnstap_log_resolver_response_messages; - /** true to log dnstap CLIENT_QUERY message events */ - int dnstap_log_client_query_messages; - /** true to log dnstap CLIENT_RESPONSE message events */ - int dnstap_log_client_response_messages; - /** true to log dnstap FORWARDER_QUERY message events */ - int dnstap_log_forwarder_query_messages; - /** true to log dnstap FORWARDER_RESPONSE message events */ - int dnstap_log_forwarder_response_messages; - - /** true to disable DNSSEC lameness check in iterator */ - int disable_dnssec_lame_check; - - /** ratelimit for ip addresses. 0 is off, otherwise qps (unless overridden) */ - int ip_ratelimit; - /** number of slabs for ip_ratelimit cache */ - size_t ip_ratelimit_slabs; - /** memory size in bytes for ip_ratelimit cache */ - size_t ip_ratelimit_size; - /** ip_ratelimit factor, 0 blocks all, 10 allows 1/10 of traffic */ - int ip_ratelimit_factor; - - /** ratelimit for domains. 0 is off, otherwise qps (unless overridden) */ - int ratelimit; - /** number of slabs for ratelimit cache */ - size_t ratelimit_slabs; - /** memory size in bytes for ratelimit cache */ - size_t ratelimit_size; - /** ratelimits for domain (exact match) */ - struct config_str2list* ratelimit_for_domain; - /** ratelimits below domain */ - struct config_str2list* ratelimit_below_domain; - /** ratelimit factor, 0 blocks all, 10 allows 1/10 of traffic */ - int ratelimit_factor; - /** minimise outgoing QNAME and hide original QTYPE if possible */ - int qname_minimisation; - /** minimise QNAME in strict mode, minimise according to RFC. - * Do not apply fallback */ - int qname_minimisation_strict; - /** SHM data - true if shm is enabled */ - int shm_enable; - /** SHM data - key for the shm */ - int shm_key; - - /** DNSCrypt */ - /** true to enable dnscrypt */ - int dnscrypt; - /** port on which to provide dnscrypt service */ - int dnscrypt_port; - /** provider name 2.dnscrypt-cert.example.com */ - char* dnscrypt_provider; - /** dnscrypt secret keys 1.key */ - struct config_strlist* dnscrypt_secret_key; - /** dnscrypt provider certs 1.cert */ - struct config_strlist* dnscrypt_provider_cert; -}; - -/** from cfg username, after daemonise setup performed */ -extern uid_t cfg_uid; -/** from cfg username, after daemonise setup performed */ -extern gid_t cfg_gid; -/** debug and enable small timeouts */ -extern int autr_permit_small_holddown; - -/** - * Stub config options - */ -struct config_stub { - /** next in list */ - struct config_stub* next; - /** domain name (in text) of the stub apex domain */ - char* name; - /** list of stub nameserver hosts (domain name) */ - struct config_strlist* hosts; - /** list of stub nameserver addresses (IP address) */ - struct config_strlist* addrs; - /** if stub-prime is set */ - int isprime; - /** if forward-first is set (failover to without if fails) */ - int isfirst; - /** use SSL for queries to this stub */ - int ssl_upstream; -}; - -/** - * View config options - */ -struct config_view { - /** next in list */ - struct config_view* next; - /** view name */ - char* name; - /** local zones */ - struct config_str2list* local_zones; - /** local data RRs */ - struct config_strlist* local_data; - /** local zones nodefault list */ - struct config_strlist* local_zones_nodefault; - /** Fallback to global local_zones when there is no match in the view - * view specific tree. 1 for yes, 0 for no */ - int isfirst; - /** predefined actions for particular IP address responses */ - struct config_str2list* respip_actions; - /** data complementing the 'redirect' response IP actions */ - struct config_str2list* respip_data; -}; - -/** - * List of strings for config options - */ -struct config_strlist { - /** next item in list */ - struct config_strlist* next; - /** config option string */ - char* str; -}; - -/** - * List of two strings for config options - */ -struct config_str2list { - /** next item in list */ - struct config_str2list* next; - /** first string */ - char* str; - /** second string */ - char* str2; -}; - -/** - * List of three strings for config options - */ -struct config_str3list { - /** next item in list */ - struct config_str3list* next; - /** first string */ - char* str; - /** second string */ - char* str2; - /** third string */ - char* str3; -}; - - -/** - * List of string, bytestring for config options - */ -struct config_strbytelist { - /** next item in list */ - struct config_strbytelist* next; - /** first string */ - char* str; - /** second bytestring */ - uint8_t* str2; - size_t str2len; -}; - -/** List head for strlist processing, used for append operation. */ -struct config_strlist_head { - /** first in list of text items */ - struct config_strlist* first; - /** last in list of text items */ - struct config_strlist* last; -}; - -/** - * Create config file structure. Filled with default values. - * @return: the new structure or NULL on memory error. - */ -struct config_file* config_create(void); - -/** - * Create config file structure for library use. Filled with default values. - * @return: the new structure or NULL on memory error. - */ -struct config_file* config_create_forlib(void); - -/** - * Read the config file from the specified filename. - * @param config: where options are stored into, must be freshly created. - * @param filename: name of configfile. If NULL nothing is done. - * @param chroot: if not NULL, the chroot dir currently in use (for include). - * @return: false on error. In that case errno is set, ENOENT means - * file not found. - */ -int config_read(struct config_file* config, const char* filename, - const char* chroot); - -/** - * Destroy the config file structure. - * @param config: to delete. - */ -void config_delete(struct config_file* config); - -/** - * Apply config to global constants; this routine is called in single thread. - * @param config: to apply. Side effect: global constants change. - */ -void config_apply(struct config_file* config); - -/** - * Find username, sets cfg_uid and cfg_gid. - * @param config: the config structure. - */ -void config_lookup_uid(struct config_file* config); - -/** - * Set the given keyword to the given value. - * @param config: where to store config - * @param option: option name, including the ':' character. - * @param value: value, this string is copied if needed, or parsed. - * The caller owns the value string. - * @return 0 on error (malloc or syntax error). - */ -int config_set_option(struct config_file* config, const char* option, - const char* value); - -/** - * Call print routine for the given option. - * @param cfg: config. - * @param opt: option name without trailing :. - * This is different from config_set_option. - * @param func: print func, called as (str, arg) for every data element. - * @param arg: user argument for print func. - * @return false if the option name is not supported (syntax error). - */ -int config_get_option(struct config_file* cfg, const char* opt, - void (*func)(char*,void*), void* arg); - -/** - * Get an option and return strlist - * @param cfg: config file - * @param opt: option name. - * @param list: list is returned here. malloced, caller must free it. - * @return 0=OK, 1=syntax error, 2=malloc failed. - */ -int config_get_option_list(struct config_file* cfg, const char* opt, - struct config_strlist** list); - -/** - * Get an option and collate results into string - * @param cfg: config file - * @param opt: option name. - * @param str: string. malloced, caller must free it. - * @return 0=OK, 1=syntax error, 2=malloc failed. - */ -int config_get_option_collate(struct config_file* cfg, const char* opt, - char** str); - -/** - * function to print to a file, use as func with config_get_option. - * @param line: text to print. \n appended. - * @param arg: pass a FILE*, like stdout. - */ -void config_print_func(char* line, void* arg); - -/** - * function to collate the text strings into a strlist_head. - * @param line: text to append. - * @param arg: pass a strlist_head structure. zeroed on start. - */ -void config_collate_func(char* line, void* arg); - -/** - * take a strlist_head list and return a malloc string. separated with newline. - * @param list: strlist first to collate. zeroes return "". - * @return NULL on malloc failure. Or if malloc failure happened in strlist. - */ -char* config_collate_cat(struct config_strlist* list); - -/** - * Append text at end of list. - * @param list: list head. zeroed at start. - * @param item: new item. malloced by caller. if NULL the insertion fails. - * @return true on success. - */ -int cfg_strlist_append(struct config_strlist_head* list, char* item); - -/** - * Insert string into strlist. - * @param head: pointer to strlist head variable. - * @param item: new item. malloced by caller. If NULL the insertion fails. - * @return: true on success. - */ -int cfg_strlist_insert(struct config_strlist** head, char* item); - -/** insert with region for allocation. */ -int cfg_region_strlist_insert(struct regional* region, - struct config_strlist** head, char* item); - -/** - * Insert string into str2list. - * @param head: pointer to str2list head variable. - * @param item: new item. malloced by caller. If NULL the insertion fails. - * @param i2: 2nd string, malloced by caller. If NULL the insertion fails. - * @return: true on success. - */ -int cfg_str2list_insert(struct config_str2list** head, char* item, char* i2); - -/** - * Insert string into str3list. - * @param head: pointer to str3list head variable. - * @param item: new item. malloced by caller. If NULL the insertion fails. - * @param i2: 2nd string, malloced by caller. If NULL the insertion fails. - * @param i3: 3rd string, malloced by caller. If NULL the insertion fails. - * @return: true on success. - */ -int cfg_str3list_insert(struct config_str3list** head, char* item, char* i2, - char* i3); - -/** - * Insert string into strbytelist. - * @param head: pointer to strbytelist head variable. - * @param item: new item. malloced by caller. If NULL the insertion fails. - * @param i2: 2nd string, malloced by caller. If NULL the insertion fails. - * @param i2len: length of the i2 bytestring. - * @return: true on success. - */ -int cfg_strbytelist_insert(struct config_strbytelist** head, char* item, - uint8_t* i2, size_t i2len); - -/** - * Find stub in config list, also returns prevptr (for deletion). - * @param pp: call routine with pointer to a pointer to the start of the list, - * if the stub is found, on exit, the value contains a pointer to the - * next pointer that points to the found element (or to the list start - * pointer if it is the first element). - * @param nm: name of stub to find. - * @return: pointer to config_stub if found, or NULL if not found. - */ -struct config_stub* cfg_stub_find(struct config_stub*** pp, const char* nm); - -/** - * Delete items in config string list. - * @param list: list. - */ -void config_delstrlist(struct config_strlist* list); - -/** - * Delete items in config double string list. - * @param list: list. - */ -void config_deldblstrlist(struct config_str2list* list); - -/** - * Delete items in config triple string list. - * @param list: list. - */ -void config_deltrplstrlist(struct config_str3list* list); - -/** delete stringbytelist */ -void config_del_strbytelist(struct config_strbytelist* list); - -/** - * Delete a stub item - * @param p: stub item - */ -void config_delstub(struct config_stub* p); - -/** - * Delete items in config stub list. - * @param list: list. - */ -void config_delstubs(struct config_stub* list); - -/** - * Delete a view item - * @param p: view item - */ -void config_delview(struct config_view* p); - -/** - * Delete items in config view list. - * @param list: list. - */ -void config_delviews(struct config_view* list); - -/** - * Convert 14digit to time value - * @param str: string of 14 digits - * @return time value or 0 for error. - */ -time_t cfg_convert_timeval(const char* str); - -/** - * Count number of values in the string. - * format ::= (sp num)+ sp - * num ::= [-](0-9)+ - * sp ::= (space|tab)* - * - * @param str: string - * @return: 0 on parse error, or empty string, else - * number of integer values in the string. - */ -int cfg_count_numbers(const char* str); - -/** - * Convert a 'nice' memory or file size into a bytecount - * From '100k' to 102400. and so on. Understands kKmMgG. - * k=1024, m=1024*1024, g=1024*1024*1024. - * @param str: string - * @param res: result is stored here, size in bytes. - * @return: true if parsed correctly, or 0 on a parse error (and an error - * is logged). - */ -int cfg_parse_memsize(const char* str, size_t* res); - -/** - * Add a tag name to the config. It is added at the end with a new ID value. - * @param cfg: the config structure. - * @param tag: string (which is copied) with the name. - * @return: false on alloc failure. - */ -int config_add_tag(struct config_file* cfg, const char* tag); - -/** - * Find tag ID in the tag list. - * @param cfg: the config structure. - * @param tag: string with tag name to search for. - * @return: 0..(num_tags-1) with tag ID, or -1 if tagname is not found. - */ -int find_tag_id(struct config_file* cfg, const char* tag); - -/** - * parse taglist from string into bytestring with bitlist. - * @param cfg: the config structure (with tagnames) - * @param str: the string to parse. Parse puts 0 bytes in string. - * @param listlen: returns length of in bytes. - * @return malloced bytes with a bitlist of the tags. or NULL on parse error - * or malloc failure. - */ -uint8_t* config_parse_taglist(struct config_file* cfg, char* str, - size_t* listlen); - -/** - * convert tag bitlist to a malloced string with tag names. For debug output. - * @param cfg: the config structure (with tagnames) - * @param taglist: the tag bitlist. - * @param len: length of the tag bitlist. - * @return malloced string or NULL. - */ -char* config_taglist2str(struct config_file* cfg, uint8_t* taglist, - size_t len); - -/** - * see if two taglists intersect (have tags in common). - * @param list1: first tag bitlist. - * @param list1len: length in bytes of first list. - * @param list2: second tag bitlist. - * @param list2len: length in bytes of second list. - * @return true if there are tags in common, 0 if not. - */ -int taglist_intersect(uint8_t* list1, size_t list1len, uint8_t* list2, - size_t list2len); - -/** - * Parse local-zone directive into two strings and register it in the config. - * @param cfg: to put it in. - * @param val: argument strings to local-zone, "example.com nodefault". - * @return: false on failure - */ -int cfg_parse_local_zone(struct config_file* cfg, const char* val); - -/** - * Mark "number" or "low-high" as available or not in ports array. - * @param str: string in input - * @param allow: give true if this range is permitted. - * @param avail: the array from cfg. - * @param num: size of the array (65536). - * @return: true if parsed correctly, or 0 on a parse error (and an error - * is logged). - */ -int cfg_mark_ports(const char* str, int allow, int* avail, int num); - -/** - * Get a condensed list of ports returned. allocated. - * @param cfg: config file. - * @param avail: the available ports array is returned here. - * @return: number of ports in array or 0 on error. - */ -int cfg_condense_ports(struct config_file* cfg, int** avail); - -/** - * Scan ports available - * @param avail: the array from cfg. - * @param num: size of the array (65536). - * @return the number of ports available for use. - */ -int cfg_scan_ports(int* avail, int num); - -/** - * Convert a filename to full pathname in original filesys - * @param fname: the path name to convert. - * Must not be null or empty. - * @param cfg: config struct for chroot and chdir (if set). - * @param use_chdir: if false, only chroot is applied. - * @return pointer to malloced buffer which is: [chroot][chdir]fname - * or NULL on malloc failure. - */ -char* fname_after_chroot(const char* fname, struct config_file* cfg, - int use_chdir); - -/** - * Convert a ptr shorthand into a full reverse-notation PTR record. - * @param str: input string, "IP name" - * @return: malloced string "reversed-ip-name PTR name" - */ -char* cfg_ptr_reverse(char* str); - -/** - * Append text to the error info for validation. - * @param qstate: query state. - * @param str: copied into query region and appended. - * Failures to allocate are logged. - */ -void errinf(struct module_qstate* qstate, const char* str); - -/** - * Append text to error info: from 1.2.3.4 - * @param qstate: query state. - * @param origin: sock list with origin of trouble. - * Every element added. - * If NULL: nothing is added. - * if 0len element: 'from cache' is added. - */ -void errinf_origin(struct module_qstate* qstate, struct sock_list *origin); - -/** - * Append text to error info: for RRset name type class - * @param qstate: query state. - * @param rr: rrset_key. - */ -void errinf_rrset(struct module_qstate* qstate, struct ub_packed_rrset_key *rr); - -/** - * Append text to error info: str dname - * @param qstate: query state. - * @param str: explanation string - * @param dname: the dname. - */ -void errinf_dname(struct module_qstate* qstate, const char* str, - uint8_t* dname); - -/** - * Create error info in string - * @param qstate: query state. - * @return string or NULL on malloc failure (already logged). - * This string is malloced and has to be freed by caller. - */ -char* errinf_to_str(struct module_qstate* qstate); - -/** - * Used during options parsing - */ -struct config_parser_state { - /** name of file being parser */ - char* filename; - /** line number in the file, starts at 1 */ - int line; - /** number of errors encountered */ - int errors; - /** the result of parsing is stored here. */ - struct config_file* cfg; - /** the current chroot dir (or NULL if none) */ - const char* chroot; -}; - -/** global config parser object used during config parsing */ -extern struct config_parser_state* cfg_parser; -/** init lex state */ -void init_cfg_parse(void); -/** lex in file */ -extern FILE* ub_c_in; -/** lex out file */ -extern FILE* ub_c_out; -/** the yacc lex generated parse function */ -int ub_c_parse(void); -/** the lexer function */ -int ub_c_lex(void); -/** wrap function */ -int ub_c_wrap(void); -/** parsing helpers: print error with file and line numbers */ -void ub_c_error(const char* msg); -/** parsing helpers: print error with file and line numbers */ -void ub_c_error_msg(const char* fmt, ...) ATTR_FORMAT(printf, 1, 2); - -#ifdef UB_ON_WINDOWS -/** - * Obtain registry string (if it exists). - * @param key: key string - * @param name: name of value to fetch. - * @return malloced string with the result or NULL if it did not - * exist on an error (logged with log_err) was encountered. - */ -char* w_lookup_reg_str(const char* key, const char* name); - -/** Modify directory in options for module file name */ -void w_config_adjust_directory(struct config_file* cfg); -#endif /* UB_ON_WINDOWS */ - -/** debug option for unit tests. */ -extern int fake_dsa, fake_sha1; - -#endif /* UTIL_CONFIG_FILE_H */ |