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backend.c revision 1.1.1.1.2.2 
      1 /* backend.c - deals with backend subsystem */
      2 /* $OpenLDAP: pkg/ldap/servers/slapd/back-monitor/backend.c,v 1.41.2.3 2008/02/11 23:26:47 kurt Exp $ */
      3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
      4  *
      5  * Copyright 2001-2008 The OpenLDAP Foundation.
      6  * Portions Copyright 2001-2003 Pierangelo Masarati.
      7  * All rights reserved.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted only as authorized by the OpenLDAP
     11  * Public License.
     12  *
     13  * A copy of this license is available in file LICENSE in the
     14  * top-level directory of the distribution or, alternatively, at
     15  * <http://www.OpenLDAP.org/license.html>.
     16  */
     17 /* ACKNOWLEDGEMENTS:
     18  * This work was initially developed by Pierangelo Masarati for inclusion
     19  * in OpenLDAP Software.
     20  */
     21 
     22 
     23 #include "portable.h"
     24 
     25 #include <stdio.h>
     26 #include <ac/string.h>
     27 
     28 #include "slap.h"
     29 #include "back-monitor.h"
     30 
     31 /*
     32  * initializes backend subentries
     33  */
     34 int
     35 monitor_subsys_backend_init(
     36 	BackendDB		*be,
     37 	monitor_subsys_t	*ms
     38 )
     39 {
     40 	monitor_info_t		*mi;
     41 	Entry			*e_backend, **ep;
     42 	int			i;
     43 	monitor_entry_t		*mp;
     44 	monitor_subsys_t	*ms_database;
     45 	BackendInfo			*bi;
     46 
     47 	mi = ( monitor_info_t * )be->be_private;
     48 
     49 	ms_database = monitor_back_get_subsys( SLAPD_MONITOR_DATABASE_NAME );
     50 	if ( ms_database == NULL ) {
     51 		Debug( LDAP_DEBUG_ANY,
     52 			"monitor_subsys_backend_init: "
     53 			"unable to get "
     54 			"\"" SLAPD_MONITOR_DATABASE_NAME "\" "
     55 			"subsystem\n",
     56 			0, 0, 0 );
     57 		return -1;
     58 	}
     59 
     60 	if ( monitor_cache_get( mi, &ms->mss_ndn, &e_backend ) ) {
     61 		Debug( LDAP_DEBUG_ANY,
     62 			"monitor_subsys_backend_init: "
     63 			"unable to get entry \"%s\"\n",
     64 			ms->mss_ndn.bv_val, 0, 0 );
     65 		return( -1 );
     66 	}
     67 
     68 	mp = ( monitor_entry_t * )e_backend->e_private;
     69 	mp->mp_children = NULL;
     70 	ep = &mp->mp_children;
     71 
     72 	i = -1;
     73 	LDAP_STAILQ_FOREACH( bi, &backendInfo, bi_next ) {
     74 		char 		buf[ BACKMONITOR_BUFSIZE ];
     75 		BackendDB	*be;
     76 		struct berval 	bv;
     77 		int		j;
     78 		Entry		*e;
     79 
     80 		i++;
     81 
     82 		bv.bv_len = snprintf( buf, sizeof( buf ), "cn=Backend %d", i );
     83 		bv.bv_val = buf;
     84 
     85 		e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
     86 			mi->mi_oc_monitoredObject, mi, NULL, NULL );
     87 
     88 		if ( e == NULL ) {
     89 			Debug( LDAP_DEBUG_ANY,
     90 				"monitor_subsys_backend_init: "
     91 				"unable to create entry \"cn=Backend %d,%s\"\n",
     92 				i, ms->mss_ndn.bv_val, 0 );
     93 			return( -1 );
     94 		}
     95 
     96 		ber_str2bv( bi->bi_type, 0, 0, &bv );
     97 		attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo,
     98 				&bv, NULL );
     99 		attr_merge_normalize_one( e_backend, mi->mi_ad_monitoredInfo,
    100 				&bv, NULL );
    101 
    102 		attr_merge_normalize_one( e, mi->mi_ad_monitorRuntimeConfig,
    103 			bi->bi_cf_ocs == NULL ? (struct berval *)&slap_false_bv :
    104 				(struct berval *)&slap_true_bv, NULL );
    105 
    106 		if ( bi->bi_controls ) {
    107 			int j;
    108 
    109 			for ( j = 0; bi->bi_controls[ j ]; j++ ) {
    110 				ber_str2bv( bi->bi_controls[ j ], 0, 0, &bv );
    111 				attr_merge_one( e, slap_schema.si_ad_supportedControl,
    112 						&bv, &bv );
    113 			}
    114 		}
    115 
    116 		j = -1;
    117 		LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
    118 			char		buf[ SLAP_LDAPDN_MAXLEN ];
    119 			struct berval	dn;
    120 
    121 			j++;
    122 
    123 			if ( be->bd_info != bi ) {
    124 				continue;
    125 			}
    126 
    127 			snprintf( buf, sizeof( buf ), "cn=Database %d,%s",
    128 					j, ms_database->mss_dn.bv_val );
    129 
    130 			ber_str2bv( buf, 0, 0, &dn );
    131 			attr_merge_normalize_one( e, slap_schema.si_ad_seeAlso,
    132 					&dn, NULL );
    133 		}
    134 
    135 		mp = monitor_entrypriv_create();
    136 		if ( mp == NULL ) {
    137 			return -1;
    138 		}
    139 		e->e_private = ( void * )mp;
    140 		mp->mp_info = ms;
    141 		mp->mp_flags = ms->mss_flags | MONITOR_F_SUB;
    142 
    143 		if ( monitor_cache_add( mi, e ) ) {
    144 			Debug( LDAP_DEBUG_ANY,
    145 				"monitor_subsys_backend_init: "
    146 				"unable to add entry \"cn=Backend %d,%s\"\n",
    147 				i,
    148 			       	ms->mss_ndn.bv_val, 0 );
    149 			return( -1 );
    150 		}
    151 
    152 		*ep = e;
    153 		ep = &mp->mp_next;
    154 	}
    155 
    156 	monitor_cache_release( mi, e_backend );
    157 
    158 	return( 0 );
    159 }
    160 
    161