+ backsql_info *si = (backsql_info*)bd->be_private;
+ SQLHDBC dbh;
+ ber_len_t idq_len;
+ struct berbuf bb = BB_NULL;
+
+ Operation otmp;
+
+ 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->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,
+ &si->concat_func, 2 ) ) {
+ Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+ "unable to parse pattern '%s'",
+ backsql_def_concat_func, 0, 0 );
+ return 1;
+ }
+ }
+
+ /*
+ * Prepare cast string as required
+ */
+ if ( si->upper_func.bv_val ) {
+ char buf[1024];
+
+ if ( BACKSQL_UPPER_NEEDS_CAST( si ) ) {
+ snprintf( buf, sizeof( buf ),
+ "%s(cast (" /* ? as varchar(%d))) */ ,
+ si->upper_func.bv_val );
+ ber_str2bv( buf, 0, 1, &si->upper_func_open );
+
+ snprintf( buf, sizeof( buf ),
+ /* (cast(? */ " as varchar(%d)))",
+ BACKSQL_MAX_DN_LEN );
+ ber_str2bv( buf, 0, 1, &si->upper_func_close );
+
+ } else {
+ snprintf( buf, sizeof( buf ), "%s(" /* ?) */ ,
+ si->upper_func.bv_val );
+ ber_str2bv( buf, 0, 1, &si->upper_func_open );
+
+ ber_str2bv( /* (? */ ")", 0, 1, &si->upper_func_close );
+ }
+ }
+
+ /* normalize filter values only if necessary */
+ si->bi_caseIgnoreMatch = mr_find( "caseIgnoreMatch" );
+
+ 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.bv_val == NULL ) {
+ /*
+ * Prepare concat function for subtree search condition
+ */
+ struct berval concat;
+ struct berval values[] = {
+ { sizeof( "'%'" ) - 1, "'%'" },
+ { sizeof( "?" ) - 1, "?" },
+ { 0, NULL }
+ };
+ struct berbuf bb = BB_NULL;
+
+ if ( backsql_prepare_pattern( si->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 ( si->upper_func.bv_val ) {
+
+ /*
+ * UPPER(ldap_entries.dn) LIKE UPPER(CONCAT('%',?))
+ */
+
+ backsql_strfcat( &bb, "blbbb",
+ &si->upper_func,
+ (ber_len_t)sizeof( "(ldap_entries.dn) LIKE " ) - 1,
+ "(ldap_entries.dn) LIKE ",
+ &si->upper_func_open,
+ &concat,
+ &si->upper_func_close );
+
+ } else {
+
+ /*
+ * ldap_entries.dn LIKE CONCAT('%',?)
+ */
+
+ backsql_strfcat( &bb, "lb",
+ (ber_len_t)sizeof( "ldap_entries.dn LIKE " ) - 1,
+ "ldap_entries.dn LIKE ",
+ &concat );
+ }
+
+ si->subtree_cond = bb.bb_val;
+
+ Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+ "setting '%s' as default\n",
+ si->subtree_cond.bv_val, 0, 0 );
+ }
+
+ if ( si->children_cond.bv_val == NULL ) {
+ struct berbuf bb = BB_NULL;
+
+ if ( si->upper_func.bv_val ) {
+
+ /*
+ * UPPER(ldap_entries.dn) LIKE UPPER(CONCAT('%,',?))
+ */
+
+ backsql_strfcat( &bb, "blbl",
+ &si->upper_func,
+ (ber_len_t)sizeof( "(ldap_entries.dn)=" ) - 1,
+ "(ldap_entries.dn)=",
+ &si->upper_func,
+ (ber_len_t)sizeof( "(?)" ) - 1, "(?)" );
+
+ } else {
+
+ /*
+ * ldap_entries.dn LIKE CONCAT('%,',?)
+ */
+
+ backsql_strfcat( &bb, "l",
+ (ber_len_t)sizeof( "ldap_entries.dn=?" ) - 1,
+ "ldap_entries.dn=?");
+ }
+
+ si->children_cond = bb.bb_val;
+
+ Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+ "setting '%s' as default\n",
+ si->children_cond.bv_val, 0, 0 );
+ }
+
+ if ( si->oc_query == NULL ) {
+ if ( BACKSQL_CREATE_NEEDS_SELECT( si ) ) {
+ si->oc_query =
+ ch_strdup( backsql_def_needs_select_oc_query );
+
+ } else {
+ si->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", si->oc_query, 0, 0 );
+ }
+
+ 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 );
+ }
+
+ otmp.o_connid = -1;
+ otmp.o_bd = bd;
+ if ( backsql_get_db_conn( &otmp, &dbh ) != LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
+ "connection failed, exiting\n", 0, 0, 0 );
+ return 1;
+ }
+
+ /*
+ * Prepare ID selection query
+ */
+ si->id_query = NULL;
+ idq_len = 0;
+
+ if ( si->upper_func.bv_val == NULL ) {
+ backsql_strcat( &bb, backsql_id_query, "dn=?", NULL );
+ } else {
+ if ( BACKSQL_HAS_LDAPINFO_DN_RU( si ) ) {
+ backsql_strcat( &bb, backsql_id_query,
+ "dn_ru=?", NULL );
+ } else {
+ if ( BACKSQL_USE_REVERSE_DN( si ) ) {
+ backsql_strfcat( &bb, "sbl",
+ backsql_id_query,
+ &si->upper_func,
+ (ber_len_t)sizeof( "(dn)=?" ) - 1, "(dn)=?" );
+ } else {
+ backsql_strfcat( &bb, "sblbcb",
+ backsql_id_query,
+ &si->upper_func,
+ (ber_len_t)sizeof( "(dn)=" ) - 1, "(dn)=",
+ &si->upper_func_open,
+ '?',
+ &si->upper_func_close );
+ }
+ }
+ }
+ si->id_query = bb.bb_val.bv_val;
+
+ /*
+ * Prepare children ID selection query
+ */
+ si->has_children_query = NULL;
+
+ bb.bb_val.bv_val = NULL;
+ bb.bb_val.bv_len = 0;
+ bb.bb_len = 0;
+ backsql_strfcat( &bb, "sb",
+ "SELECT COUNT(distinct subordinates.id) FROM ldap_entries,ldap_entries subordinates WHERE subordinates.parent=ldap_entries.id AND ",
+
+ &si->children_cond );
+ si->has_children_query = bb.bb_val.bv_val;