1/* overlay.c - deals with overlay subsystem */
2/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
3 *
4 * Copyright 2001-2011 The OpenLDAP Foundation.
5 * Portions Copyright 2001-2003 Pierangelo Masarati.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
10 * Public License.
11 *
12 * A copy of this license is available in file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
15 */
16/* ACKNOWLEDGEMENTS:
17 * This work was initially developed by Pierangelo Masarati for inclusion
18 * in OpenLDAP Software.
19 */
20
21
22#include "portable.h"
23
24#include <stdio.h>
25#include <ac/string.h>
26
27#include "slap.h"
28#include "back-monitor.h"
29
30/*
31 * initializes overlay subentries
32 */
33int
34monitor_subsys_overlay_init(
35	BackendDB		*be,
36	monitor_subsys_t	*ms
37)
38{
39	monitor_info_t		*mi;
40	Entry			*e_overlay, **ep;
41	int			i;
42	monitor_entry_t		*mp;
43	slap_overinst		*on;
44	monitor_subsys_t	*ms_database;
45
46	mi = ( monitor_info_t * )be->be_private;
47
48	ms_database = monitor_back_get_subsys( SLAPD_MONITOR_DATABASE_NAME );
49	if ( ms_database == NULL ) {
50		Debug( LDAP_DEBUG_ANY,
51			"monitor_subsys_backend_init: "
52			"unable to get "
53			"\"" SLAPD_MONITOR_DATABASE_NAME "\" "
54			"subsystem\n",
55			0, 0, 0 );
56		return -1;
57	}
58
59	if ( monitor_cache_get( mi, &ms->mss_ndn, &e_overlay ) ) {
60		Debug( LDAP_DEBUG_ANY,
61			"monitor_subsys_overlay_init: "
62			"unable to get entry \"%s\"\n",
63			ms->mss_ndn.bv_val, 0, 0 );
64		return( -1 );
65	}
66
67	mp = ( monitor_entry_t * )e_overlay->e_private;
68	mp->mp_children = NULL;
69	ep = &mp->mp_children;
70
71	for ( on = overlay_next( NULL ), i = 0; on; on = overlay_next( on ), i++ ) {
72		char 		buf[ BACKMONITOR_BUFSIZE ];
73		struct berval 	bv;
74		int		j;
75		Entry		*e;
76		BackendDB	*be;
77
78		bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Overlay %d", i );
79		bv.bv_val = buf;
80		e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
81			mi->mi_oc_monitoredObject, mi, NULL, NULL );
82		if ( e == NULL ) {
83			Debug( LDAP_DEBUG_ANY,
84				"monitor_subsys_overlay_init: "
85				"unable to create entry \"cn=Overlay %d,%s\"\n",
86				i, ms->mss_ndn.bv_val, 0 );
87			return( -1 );
88		}
89		ber_str2bv( on->on_bi.bi_type, 0, 0, &bv );
90		attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo, &bv, NULL );
91		attr_merge_normalize_one( e, mi->mi_ad_monitorRuntimeConfig,
92			on->on_bi.bi_cf_ocs ? (struct berval *)&slap_true_bv :
93				(struct berval *)&slap_false_bv, NULL );
94
95		attr_merge_normalize_one( e_overlay, mi->mi_ad_monitoredInfo,
96				&bv, NULL );
97
98		j = -1;
99		LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
100			char		buf[ SLAP_LDAPDN_MAXLEN ];
101			struct berval	dn;
102
103			j++;
104			if ( !overlay_is_inst( be, on->on_bi.bi_type ) ) {
105				continue;
106			}
107
108			snprintf( buf, sizeof( buf ), "cn=Database %d,%s",
109					j, ms_database->mss_dn.bv_val );
110
111			ber_str2bv( buf, 0, 0, &dn );
112			attr_merge_normalize_one( e, slap_schema.si_ad_seeAlso,
113					&dn, NULL );
114		}
115
116		mp = monitor_entrypriv_create();
117		if ( mp == NULL ) {
118			return -1;
119		}
120		e->e_private = ( void * )mp;
121		mp->mp_info = ms;
122		mp->mp_flags = ms->mss_flags
123			| MONITOR_F_SUB;
124
125		if ( monitor_cache_add( mi, e ) ) {
126			Debug( LDAP_DEBUG_ANY,
127				"monitor_subsys_overlay_init: "
128				"unable to add entry \"cn=Overlay %d,%s\"\n",
129				i, ms->mss_ndn.bv_val, 0 );
130			return( -1 );
131		}
132
133		*ep = e;
134		ep = &mp->mp_next;
135	}
136
137	monitor_cache_release( mi, e_overlay );
138
139	return( 0 );
140}
141
142