diff options
Diffstat (limited to 'contrib/dlz/drivers/include/dlz/sdlz_helper.h')
| -rw-r--r-- | contrib/dlz/drivers/include/dlz/sdlz_helper.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/contrib/dlz/drivers/include/dlz/sdlz_helper.h b/contrib/dlz/drivers/include/dlz/sdlz_helper.h new file mode 100644 index 0000000..764a05a --- /dev/null +++ b/contrib/dlz/drivers/include/dlz/sdlz_helper.h @@ -0,0 +1,117 @@ +/* + * 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. + */ + +#ifndef SDLZHELPER_H +#define SDLZHELPER_H + +/* + * Types + */ +#define SDLZH_REQUIRE_CLIENT 0x01 +#define SDLZH_REQUIRE_QUERY 0x02 +#define SDLZH_REQUIRE_RECORD 0x04 +#define SDLZH_REQUIRE_ZONE 0x08 + +typedef struct query_segment query_segment_t; +typedef ISC_LIST(query_segment_t) query_list_t; +typedef struct dbinstance dbinstance_t; +typedef ISC_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 *sql; + unsigned int strlen; + isc_boolean_t direct; + ISC_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; + isc_mem_t *mctx; + isc_mutex_t instance_lock; + ISC_LINK(dbinstance_t) link; +}; + +/* + * Method declarations + */ + +/* see the code in sdlz_helper.c for more information on these methods */ + +char * +sdlzh_build_querystring(isc_mem_t *mctx, query_list_t *querylist); + +isc_result_t +sdlzh_build_sqldbinstance(isc_mem_t *mctx, 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); + +void +sdlzh_destroy_sqldbinstance(dbinstance_t *dbi); + +char * +sdlzh_get_parameter_value(isc_mem_t *mctx, const char *input, const char* key); + +/* Compatability with existing DLZ drivers */ + +#define build_querystring sdlzh_build_querystring +#define build_sqldbinstance sdlzh_build_sqldbinstance +#define destroy_sqldbinstance sdlzh_destroy_sqldbinstance + +#define getParameterValue(x,y) sdlzh_get_parameter_value(ns_g_mctx, (x), (y)) + +#endif /* SDLZHELPER_H */ |