X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=servers%2Fslapd%2Fback-sql%2Finit.c;h=cf1c798cd323df02bbd92f4a562beeae21a7b117;hb=92527ee15b493f87322db5a6360f11ce41c0a410;hp=8c58f1b27c619083847e42293db1ccf3c096ee75;hpb=51bd73ce7dac183a81e8d848b9b9a60132a1fec1;p=openldap

diff --git a/servers/slapd/back-sql/init.c b/servers/slapd/back-sql/init.c
index 8c58f1b27c..cf1c798cd3 100644
--- a/servers/slapd/back-sql/init.c
+++ b/servers/slapd/back-sql/init.c
@@ -1,215 +1,592 @@
-/*
- *	 Copyright 1999, Dmitry Kovalev <mit@openldap.org>, All rights reserved.
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
  *
- *	 Redistribution and use in source and binary forms are permitted only
- *	 as authorized by the OpenLDAP Public License.	A copy of this
- *	 license is available at http://www.OpenLDAP.org/license.html or
- *	 in file LICENSE in the top-level directory of the distribution.
+ * Copyright 1999-2005 The OpenLDAP Foundation.
+ * Portions Copyright 1999 Dmitry Kovalev.
+ * Portions Copyright 2002 Pierangelo Masarati.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Dmitry Kovalev for inclusion
+ * by OpenLDAP Software.  Additional significant contributors include
+ * Pierangelo Masarati.
  */
 
 #include "portable.h"
 
-#ifdef SLAPD_SQL
-
 #include <stdio.h>
 #include <sys/types.h>
-#include "slap.h"
-#include "back-sql.h"
-#include "sql-wrap.h"
-#include "schema-map.h"
-#include "util.h"
-
-#ifdef SLAPD_SQL_DYNAMIC
+#include "ac/string.h"
 
-int backsql_LTX_init_module(int argc, char *argv[]) {
-    BackendInfo bi;
-
-    memset( &bi, '\0', sizeof(bi) );
-    bi.bi_type = "sql";
-    bi.bi_init = backbacksql_initialize;
+#include "slap.h"
+#include "proto-sql.h"
 
-    backend_add(&bi);
-    return 0;
-}
+int
+sql_back_initialize(
+	BackendInfo	*bi )
+{ 
+	static char *controls[] = {
+		LDAP_CONTROL_ASSERT,
+		LDAP_CONTROL_MANAGEDSAIT,
+#if 0 /* needs improvements */
+		LDAP_CONTROL_NOOP,
+#endif
+#ifdef SLAP_CONTROL_X_TREE_DELETE
+		SLAP_CONTROL_X_TREE_DELETE,
+#endif /* SLAP_CONTROL_X_TREE_DELETE */
+		NULL
+	};
 
-#endif /* SLAPD_SHELL_DYNAMIC */
+	bi->bi_controls = controls;
 
-int sql_back_initialize(
-    BackendInfo	*bi
-)
-{ 
- Debug(LDAP_DEBUG_TRACE,"==>backsql_initialize()\n",0,0,0);
-	bi->bi_open = 0;
-	bi->bi_config = 0;
-	bi->bi_close = 0;
-	bi->bi_destroy = 0;
+	bi->bi_flags |=
+#if 0
+		SLAP_BFLAG_INCREMENT |
+#endif
+		SLAP_BFLAG_REFERRALS;
 
+	Debug( LDAP_DEBUG_TRACE,"==>sql_back_initialize()\n", 0, 0, 0 );
+	
 	bi->bi_db_init = backsql_db_init;
 	bi->bi_db_config = backsql_db_config;
 	bi->bi_db_open = backsql_db_open;
 	bi->bi_db_close = backsql_db_close;
 	bi->bi_db_destroy = backsql_db_destroy;
 
-#ifdef BACKSQL_ALL_DONE
-	bi->bi_op_abandon = backsql_abandon;
-	bi->bi_op_compare = backsql_compare;
-#else
 	bi->bi_op_abandon = 0;
-	bi->bi_op_compare = 0;
-#endif
+	bi->bi_op_compare = backsql_compare;
 	bi->bi_op_bind = backsql_bind;
-	bi->bi_op_unbind = backsql_unbind;
+	bi->bi_op_unbind = 0;
 	bi->bi_op_search = backsql_search;
 	bi->bi_op_modify = backsql_modify;
 	bi->bi_op_modrdn = backsql_modrdn;
 	bi->bi_op_add = backsql_add;
 	bi->bi_op_delete = backsql_delete;
 	
-	bi->bi_acl_group = 0;
-	bi->bi_acl_attribute = 0;
 	bi->bi_chk_referrals = 0;
+	bi->bi_operational = backsql_operational;
+	bi->bi_entry_get_rw = backsql_entry_get;
+	bi->bi_entry_release_rw = backsql_entry_release;
  
 	bi->bi_connection_init = 0;
-	bi->bi_connection_destroy = 0;
-	
-	Debug(LDAP_DEBUG_TRACE,"<==backsql_initialize()\n",0,0,0);
+	bi->bi_connection_destroy = backsql_connection_destroy;
+
+	Debug( LDAP_DEBUG_TRACE,"<==sql_back_initialize()\n", 0, 0, 0 );
 	return 0;
 }
 
-
-int backsql_destroy ( BackendInfo *bi )
+int
+backsql_destroy( 
+	BackendInfo 	*bi )
 {
- Debug(LDAP_DEBUG_TRACE,"==>backsql_destroy()\n",0,0,0);
- Debug(LDAP_DEBUG_TRACE,"<==backsql_destroy()\n",0,0,0);
- return 0;
+	Debug( LDAP_DEBUG_TRACE, "==>backsql_destroy()\n", 0, 0, 0 );
+	Debug( LDAP_DEBUG_TRACE, "<==backsql_destroy()\n", 0, 0, 0 );
+	return 0;
 }
 
-int backsql_db_init(BackendDB *bd)
+int
+backsql_db_init(
+	BackendDB 	*bd )
 {
- backsql_info *si;
+	backsql_info	*bi;
  
- Debug(LDAP_DEBUG_TRACE,"==>backsql_db_init()\n",0,0,0);
- si = (backsql_info *) ch_calloc( 1, sizeof(backsql_info) );
- ldap_pvt_thread_mutex_init(&si->dbconn_mutex);
- ldap_pvt_thread_mutex_init(&si->schema_mutex);
- backsql_init_db_env(si);
+	Debug( LDAP_DEBUG_TRACE, "==>backsql_db_init()\n", 0, 0, 0 );
+	bi = (backsql_info *)ch_malloc( sizeof( backsql_info ) );
+	memset( bi, '\0', sizeof( backsql_info ) );
+	ldap_pvt_thread_mutex_init( &bi->sql_dbconn_mutex );
+	ldap_pvt_thread_mutex_init( &bi->sql_schema_mutex );
+	backsql_init_db_env( bi );
+
+	bd->be_private = bi;
+	Debug( LDAP_DEBUG_TRACE, "<==backsql_db_init()\n", 0, 0, 0 );
+	return 0;
+}
+
+int
+backsql_db_destroy(
+	BackendDB 	*bd )
+{
+	backsql_info	*bi = (backsql_info*)bd->be_private;
  
- bd->be_private=si;
- Debug(LDAP_DEBUG_TRACE,"<==backsql_db_init()\n",0,0,0);
- return 0;
+	Debug( LDAP_DEBUG_TRACE, "==>backsql_db_destroy()\n", 0, 0, 0 );
+
+	ldap_pvt_thread_mutex_lock( &bi->sql_dbconn_mutex );
+	backsql_free_db_env( bi );
+	ldap_pvt_thread_mutex_unlock( &bi->sql_dbconn_mutex );
+	ldap_pvt_thread_mutex_destroy( &bi->sql_dbconn_mutex );
+	ldap_pvt_thread_mutex_lock( &bi->sql_schema_mutex );
+	backsql_destroy_schema_map( bi );
+	ldap_pvt_thread_mutex_unlock( &bi->sql_schema_mutex );
+	ldap_pvt_thread_mutex_destroy( &bi->sql_schema_mutex );
+
+	if ( bi->sql_dbname ) {
+		ch_free( bi->sql_dbname );
+	}
+	if ( bi->sql_dbuser ) {
+		ch_free( bi->sql_dbuser );
+	}
+	if ( bi->sql_dbpasswd ) {
+		ch_free( bi->sql_dbpasswd );
+	}
+	if ( bi->sql_dbhost ) {
+		ch_free( bi->sql_dbhost );
+	}
+	if ( bi->sql_upper_func.bv_val ) {
+		ch_free( bi->sql_upper_func.bv_val );
+		ch_free( bi->sql_upper_func_open.bv_val );
+		ch_free( bi->sql_upper_func_close.bv_val );
+	}
+	if ( bi->sql_concat_func ) {
+		ber_bvarray_free( bi->sql_concat_func );
+	}
+	if ( !BER_BVISNULL( &bi->sql_strcast_func ) ) {
+		ch_free( bi->sql_strcast_func.bv_val );
+	}
+	if ( !BER_BVISNULL( &bi->sql_children_cond ) ) {
+		ch_free( bi->sql_children_cond.bv_val );
+	}
+	if ( !BER_BVISNULL( &bi->sql_subtree_cond ) ) {
+		ch_free( bi->sql_subtree_cond.bv_val );
+	}
+	if ( !BER_BVISNULL( &bi->sql_dn_oc_aliasing ) ) {
+		ch_free( bi->sql_dn_oc_aliasing.bv_val );
+	}
+	if ( bi->sql_oc_query ) {
+		ch_free( bi->sql_oc_query );
+	}
+	if ( bi->sql_at_query ) {
+		ch_free( bi->sql_at_query );
+	}
+	if ( bi->sql_id_query ) {
+		ch_free( bi->sql_id_query );
+	}
+	if ( bi->sql_has_children_query ) {
+		ch_free( bi->sql_has_children_query );
+	}
+	if ( bi->sql_insentry_stmt ) {
+		ch_free( bi->sql_insentry_stmt );
+	}
+	if ( bi->sql_delentry_stmt ) {
+		ch_free( bi->sql_delentry_stmt );
+	}
+	if ( bi->sql_renentry_stmt ) {
+		ch_free( bi->sql_renentry_stmt );
+	}
+	if ( bi->sql_delobjclasses_stmt ) {
+		ch_free( bi->sql_delobjclasses_stmt );
+	}
+	if ( !BER_BVISNULL( &bi->sql_aliasing ) ) {
+		ch_free( bi->sql_aliasing.bv_val );
+	}
+	if ( !BER_BVISNULL( &bi->sql_aliasing_quote ) ) {
+		ch_free( bi->sql_aliasing_quote.bv_val );
+	}
+
+	if ( bi->sql_anlist ) {
+		int	i;
+
+		for ( i = 0; !BER_BVISNULL( &bi->sql_anlist[ i ].an_name ); i++ )
+		{
+			ch_free( bi->sql_anlist[ i ].an_name.bv_val );
+		}
+		ch_free( bi->sql_anlist );
+	}
+
+	if ( bi->sql_baseObject ) {
+		entry_free( bi->sql_baseObject );
+	}
+	
+	ch_free( bi );
+	
+	Debug( LDAP_DEBUG_TRACE, "<==backsql_db_destroy()\n", 0, 0, 0 );
+	return 0;
 }
 
-int backsql_db_destroy(BackendDB *bd)
+int
+backsql_db_open(
+	BackendDB 	*bd )
 {
- backsql_info *si=(backsql_info*)bd->be_private;
+	backsql_info 	*bi = (backsql_info*)bd->be_private;
+	SQLHDBC 	dbh = SQL_NULL_HDBC;
+	struct berbuf	bb = BB_NULL;
+
+	char		opbuf[ OPERATION_BUFFER_SIZE ];
+	Operation*	op = (Operation *)opbuf;
+	
+	Debug( LDAP_DEBUG_TRACE, "==>backsql_db_open(): "
+		"testing RDBMS connection\n", 0, 0, 0 );
+	if ( bi->sql_dbname == NULL ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"datasource name not specified "
+			"(use \"dbname\" directive in slapd.conf)\n", 0, 0, 0 );
+		return 1;
+	}
+
+	if ( bi->sql_concat_func == NULL ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"concat func not specified (use \"concat_pattern\" "
+			"directive in slapd.conf)\n", 0, 0, 0 );
+
+		if ( backsql_split_pattern( backsql_def_concat_func, 
+				&bi->sql_concat_func, 2 ) ) {
+			Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+				"unable to parse pattern \"%s\"",
+				backsql_def_concat_func, 0, 0 );
+			return 1;
+		}
+	}
+
+	/*
+	 * see back-sql.h for default values
+	 */
+	if ( BER_BVISNULL( &bi->sql_aliasing ) ) {
+		ber_str2bv( BACKSQL_ALIASING,
+			STRLENOF( BACKSQL_ALIASING ),
+			1, &bi->sql_aliasing );
+	}
+
+	if ( BER_BVISNULL( &bi->sql_aliasing_quote ) ) {
+		ber_str2bv( BACKSQL_ALIASING_QUOTE,
+			STRLENOF( BACKSQL_ALIASING_QUOTE ),
+			1, &bi->sql_aliasing_quote );
+	}
+
+	/*
+	 * Prepare cast string as required
+	 */
+	if ( bi->sql_upper_func.bv_val ) {
+		char buf[1024];
+
+		if ( BACKSQL_UPPER_NEEDS_CAST( bi ) ) {
+			snprintf( buf, sizeof( buf ), 
+				"%s(cast (" /* ? as varchar(%d))) */ , 
+				bi->sql_upper_func.bv_val );
+			ber_str2bv( buf, 0, 1, &bi->sql_upper_func_open );
+
+			snprintf( buf, sizeof( buf ),
+				/* (cast(? */ " as varchar(%d)))",
+				BACKSQL_MAX_DN_LEN );
+			ber_str2bv( buf, 0, 1, &bi->sql_upper_func_close );
+
+		} else {
+			snprintf( buf, sizeof( buf ), "%s(" /* ?) */ ,
+					bi->sql_upper_func.bv_val );
+			ber_str2bv( buf, 0, 1, &bi->sql_upper_func_open );
+
+			ber_str2bv( /* (? */ ")", 0, 1, &bi->sql_upper_func_close );
+		}
+	}
+
+	/* normalize filter values only if necessary */
+	bi->sql_caseIgnoreMatch = mr_find( "caseIgnoreMatch" );
+	assert( bi->sql_caseIgnoreMatch != NULL );
+
+	bi->sql_telephoneNumberMatch = mr_find( "telephoneNumberMatch" );
+	assert( bi->sql_telephoneNumberMatch != NULL );
+
+	if ( bi->sql_dbuser == NULL ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"user name not specified "
+			"(use \"dbuser\" directive in slapd.conf)\n", 0, 0, 0 );
+		return 1;
+	}
+	
+	if ( BER_BVISNULL( &bi->sql_subtree_cond ) ) {
+		/*
+		 * Prepare concat function for subtree search condition
+		 */
+		struct berval	concat;
+		struct berval	values[] = {
+			BER_BVC( "'%'" ),
+			BER_BVC( "?" ),
+			BER_BVNULL
+		};
+		struct berbuf	bb = BB_NULL;
+
+		if ( backsql_prepare_pattern( bi->sql_concat_func, values, 
+				&concat ) ) {
+			Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+				"unable to prepare CONCAT pattern", 0, 0, 0 );
+			return 1;
+		}
+			
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"subtree search SQL condition not specified "
+			"(use \"subtree_cond\" directive in slapd.conf)\n", 
+			0, 0, 0);
+
+		if ( bi->sql_upper_func.bv_val ) {
+
+			/*
+			 * UPPER(ldap_entries.dn) LIKE UPPER(CONCAT('%',?))
+			 */
+
+			backsql_strfcat( &bb, "blbbb",
+					&bi->sql_upper_func,
+					(ber_len_t)STRLENOF( "(ldap_entries.dn) LIKE " ),
+						"(ldap_entries.dn) LIKE ",
+					&bi->sql_upper_func_open,
+					&concat,
+					&bi->sql_upper_func_close );
+
+		} else {
+
+			/*
+			 * ldap_entries.dn LIKE CONCAT('%',?)
+			 */
+
+			backsql_strfcat( &bb, "lb",
+					(ber_len_t)STRLENOF( "ldap_entries.dn LIKE " ),
+						"ldap_entries.dn LIKE ",
+					&concat );
+		}
+
+		ch_free( concat.bv_val );
+
+		bi->sql_subtree_cond = bb.bb_val;
+			
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"setting \"%s\" as default\n",
+			bi->sql_subtree_cond.bv_val, 0, 0 );
+	}
+
+	if ( bi->sql_children_cond.bv_val == NULL ) {
+		struct berbuf	bb = BB_NULL;
+
+		if ( bi->sql_upper_func.bv_val ) {
+
+			/*
+			 * UPPER(ldap_entries.dn) LIKE UPPER(CONCAT('%,',?))
+			 */
+
+			backsql_strfcat( &bb, "blbl",
+					&bi->sql_upper_func,
+					(ber_len_t)STRLENOF( "(ldap_entries.dn)=" ),
+						"(ldap_entries.dn)=",
+					&bi->sql_upper_func,
+					(ber_len_t)STRLENOF( "(?)" ), "(?)" );
+
+		} else {
+
+			/*
+			 * ldap_entries.dn LIKE CONCAT('%,',?)
+			 */
+
+			backsql_strfcat( &bb, "l",
+					(ber_len_t)STRLENOF( "ldap_entries.dn=?" ),
+						"ldap_entries.dn=?");
+		}
+
+		bi->sql_children_cond = bb.bb_val;
+			
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"setting \"%s\" as default\n",
+			bi->sql_children_cond.bv_val, 0, 0 );
+	}
+
+	if ( bi->sql_oc_query == NULL ) {
+		if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
+			bi->sql_oc_query =
+				ch_strdup( backsql_def_needs_select_oc_query );
+
+		} else {
+			bi->sql_oc_query = ch_strdup( backsql_def_oc_query );
+		}
+
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"objectclass mapping SQL statement not specified "
+			"(use \"oc_query\" directive in slapd.conf)\n", 
+			0, 0, 0 );
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"setting \"%s\" by default\n", bi->sql_oc_query, 0, 0 );
+	}
+	
+	if ( bi->sql_at_query == NULL ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"attribute mapping SQL statement not specified "
+			"(use \"at_query\" directive in slapd.conf)\n",
+			0, 0, 0 );
+		Debug(LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"setting \"%s\" by default\n",
+			backsql_def_at_query, 0, 0 );
+		bi->sql_at_query = ch_strdup( backsql_def_at_query );
+	}
+	
+	if ( bi->sql_insentry_stmt == NULL ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"entry insertion SQL statement not specified "
+			"(use \"insentry_stmt\" directive in slapd.conf)\n",
+			0, 0, 0 );
+		Debug(LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"setting \"%s\" by default\n",
+			backsql_def_insentry_stmt, 0, 0 );
+		bi->sql_insentry_stmt = ch_strdup( backsql_def_insentry_stmt );
+	}
+	
+	if ( bi->sql_delentry_stmt == NULL ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"entry deletion SQL statement not specified "
+			"(use \"delentry_stmt\" directive in slapd.conf)\n",
+			0, 0, 0 );
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"setting \"%s\" by default\n",
+			backsql_def_delentry_stmt, 0, 0 );
+		bi->sql_delentry_stmt = ch_strdup( backsql_def_delentry_stmt );
+	}
+
+	if ( bi->sql_renentry_stmt == NULL ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"entry deletion SQL statement not specified "
+			"(use \"renentry_stmt\" directive in slapd.conf)\n",
+			0, 0, 0 );
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"setting \"%s\" by default\n",
+			backsql_def_renentry_stmt, 0, 0 );
+		bi->sql_renentry_stmt = ch_strdup( backsql_def_renentry_stmt );
+	}
+
+	if ( bi->sql_delobjclasses_stmt == NULL ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"objclasses deletion SQL statement not specified "
+			"(use \"delobjclasses_stmt\" directive in slapd.conf)\n",
+			0, 0, 0 );
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"setting \"%s\" by default\n",
+			backsql_def_delobjclasses_stmt, 0, 0 );
+		bi->sql_delobjclasses_stmt = ch_strdup( backsql_def_delobjclasses_stmt );
+	}
+
+	/* This should just be to force schema loading */
+	op->o_hdr = (Opheader *)&op[ 1 ];
+	op->o_connid = (unsigned long)(-1);
+	op->o_bd = bd;
+	if ( backsql_get_db_conn( op, &dbh ) != LDAP_SUCCESS ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"connection failed, exiting\n", 0, 0, 0 );
+		return 1;
+	}
+	(void)backsql_free_db_conn( op );
+
+	/*
+	 * Prepare ID selection query
+	 */
+	if ( bi->sql_id_query == NULL ) {
+		/* no custom id_query provided */
+		if ( bi->sql_upper_func.bv_val == NULL ) {
+			backsql_strcat( &bb, backsql_id_query, "dn=?", NULL );
+
+		} else {
+			if ( BACKSQL_HAS_LDAPINFO_DN_RU( bi ) ) {
+				backsql_strcat( &bb, backsql_id_query,
+						"dn_ru=?", NULL );
+			} else {
+				if ( BACKSQL_USE_REVERSE_DN( bi ) ) {
+					backsql_strfcat( &bb, "sbl",
+							backsql_id_query,
+							&bi->sql_upper_func, 
+							(ber_len_t)STRLENOF( "(dn)=?" ), "(dn)=?" );
+				} else {
+					backsql_strfcat( &bb, "sblbcb",
+							backsql_id_query,
+							&bi->sql_upper_func, 
+							(ber_len_t)STRLENOF( "(dn)=" ), "(dn)=",
+							&bi->sql_upper_func_open, 
+							'?', 
+							&bi->sql_upper_func_close );
+				}
+			}
+		}
+		bi->sql_id_query = bb.bb_val.bv_val;
+	}
+
+	/*
+	 * Prepare children ID selection query
+	 */
+	BER_BVZERO( &bb.bb_val );
+	bb.bb_len = 0;
+	backsql_strfcat( &bb, "sbsb",
+			"SELECT COUNT(distinct subordinates.id) "
+			"FROM ldap_entries,ldap_entries ",
+			&bi->sql_aliasing, "subordinates "
+			"WHERE subordinates.parent=ldap_entries.id AND ",
+			&bi->sql_children_cond );
+	bi->sql_has_children_query = bb.bb_val.bv_val;
+ 
+	/*
+	 * Prepare DN and objectClass aliasing bit of query
+	 */
+	BER_BVZERO( &bb.bb_val );
+	bb.bb_len = 0;
+	backsql_strfcat( &bb, "sbbsbsbbsb",
+			" ", &bi->sql_aliasing, &bi->sql_aliasing_quote,
+			"objectClass", &bi->sql_aliasing_quote,
+			",ldap_entries.dn ", &bi->sql_aliasing,
+			&bi->sql_aliasing_quote, "dn", &bi->sql_aliasing_quote );
+	bi->sql_dn_oc_aliasing = bb.bb_val;
  
- Debug(LDAP_DEBUG_TRACE,"==>backsql_db_destroy()\n",0,0,0);
- ldap_pvt_thread_mutex_lock(&si->dbconn_mutex);
- backsql_free_db_env(si);
- ldap_pvt_thread_mutex_unlock(&si->dbconn_mutex);
- ldap_pvt_thread_mutex_lock(&si->schema_mutex);
- backsql_destroy_schema_map(si);
- ldap_pvt_thread_mutex_unlock(&si->schema_mutex);
- ldap_pvt_thread_mutex_destroy(&si->schema_mutex);
- ldap_pvt_thread_mutex_destroy(&si->dbconn_mutex);
- free(si->dbname);
- free(si->dbuser);
- if (si->dbpasswd)
-  free(si->dbpasswd);
- if (si->dbhost)
-  free(si->dbhost);
- if (si->upper_func)
-  free(si->upper_func);
- free(si->subtree_cond);
- free(si->oc_query);
- free(si->at_query);
- free(si->insentry_query);
- free(si->delentry_query);
- free(si);
- Debug(LDAP_DEBUG_TRACE,"<==backsql_db_destroy()\n",0,0,0);
- return 0;
+	backsql_free_db_conn( op );
+	if ( !BACKSQL_SCHEMA_LOADED( bi ) ) {
+		Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+			"test failed, schema map not loaded - exiting\n",
+			0, 0, 0 );
+		return 1;
+	}
+
+	/* should never happen! */
+	assert( bd->be_nsuffix != NULL );
+	
+	if ( BER_BVISNULL( &bd->be_nsuffix[ 1 ] ) ) {
+		/* enable if only one suffix is defined */
+		bi->sql_flags |= BSQLF_USE_SUBTREE_SHORTCUT;
+	}
+
+	bi->sql_flags |= BSQLF_CHECK_SCHEMA;
+	
+	Debug( LDAP_DEBUG_TRACE, "<==backsql_db_open(): "
+		"test succeeded, schema map loaded\n", 0, 0, 0 );
+	return 0;
 }
 
-int backsql_db_open (BackendDB *bd)
+int
+backsql_db_close(
+	BackendDB	*bd )
 {
- backsql_info *si=(backsql_info*)bd->be_private;
- Connection tmp;
- SQLHDBC dbh;
- int idq_len;
-
- Debug(LDAP_DEBUG_TRACE,"==>backsql_db_open(): testing RDBMS connection\n",0,0,0);
- if (si->dbname==NULL)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): datasource name not specified (use dbname directive in slapd.conf)\n",0,0,0);
-  return 1;
- }
- if (si->dbuser==NULL)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): user name not specified (use dbuser directive in slapd.conf)\n",0,0,0);
-  return 1;
- }
- if (si->subtree_cond==NULL)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): subtree search SQL condition not specified (use subtree_cond directive in slapd.conf)\n",0,0,0);
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): setting '%s' as default\n",backsql_def_subtree_cond,0,0);
-  si->subtree_cond=ch_strdup(backsql_def_subtree_cond);
- }
- if (si->oc_query==NULL)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): objectclass mapping SQL statement not specified (use oc_query directive in slapd.conf)\n",0,0,0);
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): setting '%s' by default\n",backsql_def_oc_query,0,0);
-  si->oc_query=ch_strdup(backsql_def_oc_query);
- }
- if (si->at_query==NULL)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): attribute mapping SQL statement not specified (use at_query directive in slapd.conf)\n",0,0,0);
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): setting '%s' by default\n",backsql_def_at_query,0,0);
-  si->at_query=ch_strdup(backsql_def_at_query);
- }
- if (si->insentry_query==NULL)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): entry insertion SQL statement not specified (use insentry_query directive in slapd.conf)\n",0,0,0);
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): setting '%s' by default\n",backsql_def_insentry_query,0,0);
-  si->insentry_query=ch_strdup(backsql_def_insentry_query);
- }
- if (si->delentry_query==NULL)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): entry deletion SQL statement not specified (use delentry_query directive in slapd.conf)\n",0,0,0);
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): setting '%s' by default\n",backsql_def_delentry_query,0,0);
-  si->delentry_query=ch_strdup(backsql_def_delentry_query);
- }
- si->id_query=NULL;
- idq_len=0;
- if (si->upper_func==NULL)
- {
-  si->id_query=backsql_strcat(si->id_query,&idq_len,backsql_id_query,"dn=?",NULL);
- }
- else
-  {
-   si->id_query=backsql_strcat(si->id_query,&idq_len,backsql_id_query,si->upper_func,"(dn)=",si->upper_func,"(?)",NULL);
-  }
- tmp.c_connid=-1;
- dbh=backsql_get_db_conn(bd,&tmp);
- if (!dbh)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): connection failed, exiting\n",0,0,0);
-  return 1;
- }
- backsql_free_db_conn(bd,&tmp);
- if (!si->schema_loaded)
- {
-  Debug(LDAP_DEBUG_TRACE,"backsql_db_open(): test failed, schema map not loaded - exiting\n",0,0,0);
-  return 1;
- }
- Debug(LDAP_DEBUG_TRACE,"<==backsql_db_open(): test succeeded, schema map loaded\n",0,0,0);
- return 0;
+	Debug( LDAP_DEBUG_TRACE, "==>backsql_db_close()\n", 0, 0, 0 );
+	Debug( LDAP_DEBUG_TRACE, "<==backsql_db_close()\n", 0, 0, 0 );
+	return 0;
 }
 
-int backsql_db_close(BackendDB *bd)
+int
+backsql_connection_destroy( Backend *bd, Connection *c )
 {
- Debug(LDAP_DEBUG_TRACE,"==>backsql_db_close()\n",0,0,0);
- Debug(LDAP_DEBUG_TRACE,"<==backsql_db_close()\n",0,0,0);
- return 0;
+	backsql_info 	*bi = (backsql_info*)bd->be_private;
+
+	char		opbuf[ OPERATION_BUFFER_SIZE ];
+	Operation*	op = (Operation *)opbuf;
+
+	op->o_hdr = (Opheader *)&op[ 1 ];
+	op->o_connid = c->c_connid;
+	op->o_bd = bd;
+
+	Debug( LDAP_DEBUG_TRACE, "==>backsql_connection_destroy()\n", 0, 0, 0 );
+	backsql_free_db_conn( op );
+	Debug( LDAP_DEBUG_TRACE, "<==backsql_connection_destroy()\n", 0, 0, 0 );
+
+	return 0;
 }
 
-#endif /* SLAPD_SQL */
+#if SLAPD_SQL == SLAPD_MOD_DYNAMIC
+
+/* conditionally define the init_module() function */
+SLAP_BACKEND_INIT_MODULE( sql )
+
+#endif /* SLAPD_SQL == SLAPD_MOD_DYNAMIC */
+