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overlay.c revision 1.3 
      1 /*	$NetBSD: overlay.c,v 1.3 2021/08/14 16:15:00 christos Exp $	*/
      2 
      3 /* overlay.c - deals with overlay subsystem */
      4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
      5  *
      6  * Copyright 2001-2021 The OpenLDAP Foundation.
      7  * Portions Copyright 2001-2003 Pierangelo Masarati.
      8  * All rights reserved.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted only as authorized by the OpenLDAP
     12  * Public License.
     13  *
     14  * A copy of this license is available in file LICENSE in the
     15  * top-level directory of the distribution or, alternatively, at
     16  * <http://www.OpenLDAP.org/license.html>.
     17  */
     18 /* ACKNOWLEDGEMENTS:
     19  * This work was initially developed by Pierangelo Masarati for inclusion
     20  * in OpenLDAP Software.
     21  */
     22 
     23 
     24 #include <sys/cdefs.h>
     25 __RCSID("$NetBSD: overlay.c,v 1.3 2021/08/14 16:15:00 christos Exp $");
     26 
     27 #include "portable.h"
     28 
     29 #include <stdio.h>
     30 #include <ac/string.h>
     31 
     32 #include "slap.h"
     33 #include "back-monitor.h"
     34 
     35 /*
     36  * initializes overlay subentries
     37  */
     38 int
     39 monitor_subsys_overlay_init(
     40 	BackendDB		*be,
     41 	monitor_subsys_t	*ms
     42 )
     43 {
     44 	monitor_info_t		*mi;
     45 	Entry			*e_overlay, **ep;
     46 	int			i;
     47 	monitor_entry_t		*mp;
     48 	slap_overinst		*on;
     49 	monitor_subsys_t	*ms_database;
     50 
     51 	mi = ( monitor_info_t * )be->be_private;
     52 
     53 	ms_database = monitor_back_get_subsys( SLAPD_MONITOR_DATABASE_NAME );
     54 	if ( ms_database == NULL ) {
     55 		Debug( LDAP_DEBUG_ANY,
     56 			"monitor_subsys_backend_init: "
     57 			"unable to get "
     58 			"\"" SLAPD_MONITOR_DATABASE_NAME "\" "
     59 			"subsystem\n" );
     60 		return -1;
     61 	}
     62 
     63 	if ( monitor_cache_get( mi, &ms->mss_ndn, &e_overlay ) ) {
     64 		Debug( LDAP_DEBUG_ANY,
     65 			"monitor_subsys_overlay_init: "
     66 			"unable to get entry \"%s\"\n",
     67 			ms->mss_ndn.bv_val );
     68 		return( -1 );
     69 	}
     70 
     71 	mp = ( monitor_entry_t * )e_overlay->e_private;
     72 	mp->mp_children = NULL;
     73 	ep = &mp->mp_children;
     74 
     75 	for ( on = overlay_next( NULL ), i = 0; on; on = overlay_next( on ), i++ ) {
     76 		char 		buf[ BACKMONITOR_BUFSIZE ];
     77 		struct berval 	bv;
     78 		int		j;
     79 		Entry		*e;
     80 		BackendDB	*be;
     81 
     82 		bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Overlay %d", i );
     83 		bv.bv_val = buf;
     84 		e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
     85 			mi->mi_oc_monitoredObject, NULL, NULL );
     86 		if ( e == NULL ) {
     87 			Debug( LDAP_DEBUG_ANY,
     88 				"monitor_subsys_overlay_init: "
     89 				"unable to create entry \"cn=Overlay %d,%s\"\n",
     90 				i, ms->mss_ndn.bv_val );
     91 			return( -1 );
     92 		}
     93 		ber_str2bv( on->on_bi.bi_type, 0, 0, &bv );
     94 		attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo, &bv, NULL );
     95 		attr_merge_normalize_one( e, mi->mi_ad_monitorRuntimeConfig,
     96 			on->on_bi.bi_cf_ocs ? (struct berval *)&slap_true_bv :
     97 				(struct berval *)&slap_false_bv, NULL );
     98 
     99 		attr_merge_normalize_one( e_overlay, mi->mi_ad_monitoredInfo,
    100 				&bv, NULL );
    101 
    102 		j = -1;
    103 		LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
    104 			char		buf[ SLAP_LDAPDN_MAXLEN ];
    105 			struct berval	dn;
    106 
    107 			j++;
    108 			if ( !overlay_is_inst( be, on->on_bi.bi_type ) ) {
    109 				continue;
    110 			}
    111 
    112 			snprintf( buf, sizeof( buf ), "cn=Database %d,%s",
    113 					j, ms_database->mss_dn.bv_val );
    114 
    115 			ber_str2bv( buf, 0, 0, &dn );
    116 			attr_merge_normalize_one( e, slap_schema.si_ad_seeAlso,
    117 					&dn, NULL );
    118 		}
    119 
    120 		mp = monitor_entrypriv_create();
    121 		if ( mp == NULL ) {
    122 			return -1;
    123 		}
    124 		e->e_private = ( void * )mp;
    125 		mp->mp_info = ms;
    126 		mp->mp_flags = ms->mss_flags
    127 			| MONITOR_F_SUB;
    128 
    129 		if ( monitor_cache_add( mi, e ) ) {
    130 			Debug( LDAP_DEBUG_ANY,
    131 				"monitor_subsys_overlay_init: "
    132 				"unable to add entry \"cn=Overlay %d,%s\"\n",
    133 				i, ms->mss_ndn.bv_val );
    134 			return( -1 );
    135 		}
    136 
    137 		*ep = e;
    138 		ep = &mp->mp_next;
    139 	}
    140 
    141 	monitor_cache_release( mi, e_overlay );
    142 
    143 	return( 0 );
    144 }
    145 
    146