/* * Copyright (C) 2002 Stichting NLnet, Netherlands, stichting@nlnet.nl. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the * above copyright notice and this permission notice appear in all * copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND STICHTING NLNET * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL * STICHTING NLNET BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE * USE OR PERFORMANCE OF THIS SOFTWARE. * * The development of Dynamically Loadable Zones (DLZ) for Bind 9 was * conceived and contributed by Rob Butler. * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the * above copyright notice and this permission notice appear in all * copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND ROB BUTLER * DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL * ROB BUTLER BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE * USE OR PERFORMANCE OF THIS SOFTWARE. */ #include <dlz_minimal.h> #include <dlz_list.h> #include <dlz_pthread.h> #ifndef DLZ_DBI_H #define DLZ_DBI_H 1 /* * Types */ #define REQUIRE_CLIENT 0x01 #define REQUIRE_QUERY 0x02 #define REQUIRE_RECORD 0x04 #define REQUIRE_ZONE 0x08 typedef struct query_segment query_segment_t; typedef DLZ_LIST(query_segment_t) query_list_t; typedef struct dbinstance dbinstance_t; typedef DLZ_LIST(dbinstance_t) db_list_t; typedef struct driverinstance driverinstance_t; /*% * a query segment is all the text between our special tokens * special tokens are %zone%, %record%, %client% */ struct query_segment { void *cmd; unsigned int strlen; isc_boolean_t direct; DLZ_LINK(query_segment_t) link; }; /*% * a database instance contains everything we need for running * a query against the database. Using it each separate thread * can dynamically construct a query and execute it against the * database. The "instance_lock" and locking code in the driver's * make sure no two threads try to use the same DBI at a time. */ struct dbinstance { void *dbconn; query_list_t *allnodes_q; query_list_t *allowxfr_q; query_list_t *authority_q; query_list_t *findzone_q; query_list_t *lookup_q; query_list_t *countzone_q; char *query_buf; char *zone; char *record; char *client; dlz_mutex_t lock; DLZ_LINK(dbinstance_t) link; }; /* * Method declarations */ void destroy_querylist(query_list_t **querylist); isc_result_t build_querylist(const char *query_str, char **zone, char **record, char **client, query_list_t **querylist, unsigned int flags, log_t log); char * build_querystring(query_list_t *querylist); isc_result_t build_dbinstance(const char *allnodes_str, const char *allowxfr_str, const char *authority_str, const char *findzone_str, const char *lookup_str, const char *countzone_str, dbinstance_t **dbi, log_t log); void destroy_dbinstance(dbinstance_t *dbi); char * get_parameter_value(const char *input, const char* key); #endif /* DLZ_DBI_H */