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[openldap] / servers / slapd / back-monitor / conn.c
index ae877020b70893cc627f6a68177bee27697af5c1..f740ff048940333642b886eba331b70a0083bc85 100644 (file)
 /* conn.c - deal with connection subsystem */
-/*
- * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2001-2012 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2003 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 file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
  */
-/*
- * Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
- * 
- * This work has beed deveolped for the OpenLDAP Foundation 
- * in the hope that it may be useful to the Open Source community, 
- * but WITHOUT ANY WARRANTY.
- * 
- * Permission is granted to anyone to use this software for any purpose
- * on any computer system, and to alter it and redistribute it, subject
- * to the following restrictions:
- * 
- * 1. The author and SysNet s.n.c. are not responsible for the consequences
- *    of use of this software, no matter how awful, even if they arise from
- *    flaws in it.
- * 
- * 2. The origin of this software must not be misrepresented, either by
- *    explicit claim or by omission.  Since few users ever read sources,
- *    credits should appear in the documentation.
- * 
- * 3. Altered versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.  Since few users
- *    ever read sources, credits should appear in the documentation.
- *    SysNet s.n.c. cannot be responsible for the consequences of the
- *    alterations.
- * 
- * 4. This notice may not be removed or altered.
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by Pierangelo Masarati for inclusion
+ * in OpenLDAP Software.
  */
 
 #include "portable.h"
 
 #include <stdio.h>
+#include <ac/string.h>
 
 #include "slap.h"
+#include "lutil.h"
 #include "back-monitor.h"
 
-#define CONN_CN_PREFIX "Connection"
+static int
+monitor_subsys_conn_update(
+       Operation               *op,
+       SlapReply               *rs,
+       Entry                   *e );
+
+static int 
+monitor_subsys_conn_create( 
+       Operation               *op,
+       SlapReply               *rs,
+       struct berval           *ndn,
+       Entry                   *e_parent,
+       Entry                   **ep );
 
 int
 monitor_subsys_conn_init(
-       BackendDB               *be
-)
+       BackendDB               *be,
+       monitor_subsys_t        *ms )
 {
-       struct monitorinfo      *mi;
-       
-       Entry                   *e, *e_tmp, *e_conn;
-       struct monitorentrypriv *mp;
-       char                    buf[1024];
-       struct berval           bv[2];
+       monitor_info_t  *mi;
+       Entry           *e, **ep, *e_conn;
+       monitor_entry_t *mp;
+       char            buf[ BACKMONITOR_BUFSIZE ];
+       struct berval   bv;
 
        assert( be != NULL );
 
-       mi = ( struct monitorinfo * )be->be_private;
+       ms->mss_update = monitor_subsys_conn_update;
+       ms->mss_create = monitor_subsys_conn_create;
 
-       if ( monitor_cache_get( mi,
-                       &monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn, &e_conn ) ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
+       mi = ( monitor_info_t * )be->be_private;
+
+       if ( monitor_cache_get( mi, &ms->mss_ndn, &e_conn ) ) {
+               Debug( LDAP_DEBUG_ANY,
                        "monitor_subsys_conn_init: "
-                       "unable to get entry '%s'\n",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val ));
-#else
+                       "unable to get entry \"%s\"\n",
+                       ms->mss_ndn.bv_val, 0, 0 );
+               return( -1 );
+       }
+
+       mp = ( monitor_entry_t * )e_conn->e_private;
+       mp->mp_children = NULL;
+       ep = &mp->mp_children;
+
+       /*
+        * Max file descriptors
+        */
+       BER_BVSTR( &bv, "cn=Max File Descriptors" );
+       e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
+               mi->mi_oc_monitorCounterObject, mi, NULL, NULL );
+       
+       if ( e == NULL ) {
                Debug( LDAP_DEBUG_ANY,
                        "monitor_subsys_conn_init: "
-                       "unable to get entry '%s'\n%s%s",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val, 
-                       "", "" );
-#endif
+                       "unable to create entry \"%s,%s\"\n",
+                       bv.bv_val, ms->mss_ndn.bv_val, 0 );
                return( -1 );
        }
 
-       e_tmp = NULL;
+       if ( dtblsize ) {
+               bv.bv_val = buf;
+               bv.bv_len = snprintf( buf, sizeof( buf ), "%d", dtblsize );
+
+       } else {
+               BER_BVSTR( &bv, "0" );
+       }
+       attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
+       
+       mp = monitor_entrypriv_create();
+       if ( mp == NULL ) {
+               return -1;
+       }
+       e->e_private = ( void * )mp;
+       mp->mp_info = ms;
+       mp->mp_flags = ms->mss_flags \
+               | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
+       mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 
+       if ( monitor_cache_add( mi, e ) ) {
+               Debug( LDAP_DEBUG_ANY,
+                       "monitor_subsys_conn_init: "
+                       "unable to add entry \"cn=Total,%s\"\n",
+                       ms->mss_ndn.bv_val, 0, 0 );
+               return( -1 );
+       }
+
+       *ep = e;
+       ep = &mp->mp_next;
+       
        /*
         * Total conns
         */
-       snprintf( buf, sizeof( buf ),
-               "dn: cn=Total,%s\n"
-               SLAPD_MONITOR_OBJECTCLASSES
-               "cn: Total\n",
-               monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val );
+       BER_BVSTR( &bv, "cn=Total" );
+       e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
+               mi->mi_oc_monitorCounterObject, mi, NULL, NULL );
        
-       e = str2entry( buf );
        if ( e == NULL ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
-                       "monitor_subsys_conn_init: "
-                       "unable to create entry 'cn=Total,%s'\n",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val ));
-#else
                Debug( LDAP_DEBUG_ANY,
                        "monitor_subsys_conn_init: "
-                       "unable to create entry 'cn=Total,%s'\n%s%s",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
-                       "", "" );
-#endif
+                       "unable to create entry \"cn=Total,%s\"\n",
+                       ms->mss_ndn.bv_val, 0, 0 );
                return( -1 );
        }
        
-       bv[1].bv_val = NULL;
-       bv[0].bv_val = "0";
-       bv[0].bv_len = 1;
-       attr_merge( e, monitor_ad_desc, bv );
+       BER_BVSTR( &bv, "-1" );
+       attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
        
-       mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
+       mp = monitor_entrypriv_create();
+       if ( mp == NULL ) {
+               return -1;
+       }
        e->e_private = ( void * )mp;
-       mp->mp_next = e_tmp;
-       mp->mp_children = NULL;
-       mp->mp_info = &monitor_subsys[SLAPD_MONITOR_CONN];
-       mp->mp_flags = monitor_subsys[SLAPD_MONITOR_CONN].mss_flags \
+       mp->mp_info = ms;
+       mp->mp_flags = ms->mss_flags \
                | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
        mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 
        if ( monitor_cache_add( mi, e ) ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
-                       "monitor_subsys_conn_init: "
-                       "unable to add entry 'cn=Total,%s'\n",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val ));
-#else
                Debug( LDAP_DEBUG_ANY,
                        "monitor_subsys_conn_init: "
-                       "unable to add entry 'cn=Total,%s'\n%s%s",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
-                       "", "" );
-#endif
+                       "unable to add entry \"cn=Total,%s\"\n",
+                       ms->mss_ndn.bv_val, 0, 0 );
                return( -1 );
        }
-       
-       e_tmp = e;
 
+       *ep = e;
+       ep = &mp->mp_next;
+       
        /*
         * Current conns
         */
-       snprintf( buf, sizeof( buf ),
-               "dn: cn=Current,%s\n"
-               SLAPD_MONITOR_OBJECTCLASSES
-               "cn: Current\n",
-               monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val );
-       
-       e = str2entry( buf );
+       BER_BVSTR( &bv, "cn=Current" );
+       e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
+               mi->mi_oc_monitorCounterObject, mi, NULL, NULL );
+
        if ( e == NULL ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
-                       "monitor_subsys_conn_init: "
-                       "unable to create entry 'cn=Current,%s'\n",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val ));
-#else
                Debug( LDAP_DEBUG_ANY,
                        "monitor_subsys_conn_init: "
-                       "unable to create entry 'cn=Current,%s'\n%s%s",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
-                       "", "" );
-#endif
+                       "unable to create entry \"cn=Current,%s\"\n",
+                       ms->mss_ndn.bv_val, 0, 0 );
                return( -1 );
        }
        
-       bv[1].bv_val = NULL;
-       bv[0].bv_val = "0";
-       bv[0].bv_len = 1;
-       attr_merge( e, monitor_ad_desc, bv );
+       BER_BVSTR( &bv, "0" );
+       attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
        
-       mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
+       mp = monitor_entrypriv_create();
+       if ( mp == NULL ) {
+               return -1;
+       }
        e->e_private = ( void * )mp;
-       mp->mp_next = e_tmp;
-       mp->mp_children = NULL;
-       mp->mp_info = &monitor_subsys[SLAPD_MONITOR_CONN];
-       mp->mp_flags = monitor_subsys[SLAPD_MONITOR_CONN].mss_flags \
+       mp->mp_info = ms;
+       mp->mp_flags = ms->mss_flags \
                | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
        mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 
        if ( monitor_cache_add( mi, e ) ) {
-#ifdef NEW_LOGGING
-               LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
-                       "monitor_subsys_conn_init: "
-                       "unable to add entry 'cn=Current,%s'\n",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val ));
-#else
                Debug( LDAP_DEBUG_ANY,
                        "monitor_subsys_conn_init: "
-                       "unable to add entry 'cn=Current,%s'\n%s%s",
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
-                       "", "" );
-#endif
+                       "unable to add entry \"cn=Current,%s\"\n",
+                       ms->mss_ndn.bv_val, 0, 0 );
                return( -1 );
        }
        
-       e_tmp = e;
-
-       mp = ( struct monitorentrypriv * )e_conn->e_private;
-       mp->mp_children = e_tmp;
+       *ep = e;
+       ep = &mp->mp_next;
 
        monitor_cache_release( mi, e_conn );
 
        return( 0 );
 }
 
-int
+static int
 monitor_subsys_conn_update(
-       struct monitorinfo      *mi,
-       Entry                   *e
-)
+       Operation               *op,
+       SlapReply               *rs,
+       Entry                   *e )
 {
-       long            n = -1;
+       monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
+
+       long                    n = -1;
+       static struct berval    total_bv = BER_BVC( "cn=total" ),
+                               current_bv = BER_BVC( "cn=current" );
+       struct berval           rdn;
 
-       assert( mi );
-       assert( e );
+       assert( mi != NULL );
+       assert( e != NULL );
+
+       dnRdn( &e->e_nname, &rdn );
        
-       if ( strncasecmp( e->e_ndn, "CN=TOTAL", 
-                               sizeof("CN=TOTAL")-1 ) == 0 ) {
+       if ( dn_match( &rdn, &total_bv ) ) {
                n = connections_nextid();
 
-       } else if ( strncasecmp( e->e_ndn, "CN=CURRENT", 
-                               sizeof("CN=CURRENT")-1 ) == 0 ) {
+       } else if ( dn_match( &rdn, &current_bv ) ) {
                Connection      *c;
                int             connindex;
 
                for ( n = 0, c = connection_first( &connindex );
                                c != NULL;
-                               n++, c = connection_next( c, &connindex ) ) {
+                               n++, c = connection_next( c, &connindex ) )
+               {
                        /* No Op */ ;
                }
-               connection_done(c);
+               connection_done( c );
        }
 
        if ( n != -1 ) {
                Attribute       *a;
-               char            buf[16];
+               char            buf[LDAP_PVT_INTTYPE_CHARS(long)];
+               ber_len_t       len;
 
-               a = attr_find( e->e_attrs, monitor_ad_desc );
+               a = attr_find( e->e_attrs, mi->mi_ad_monitorCounter );
                if ( a == NULL ) {
                        return( -1 );
                }
 
                snprintf( buf, sizeof( buf ), "%ld", n );
-               free( a->a_vals[ 0 ].bv_val );
-               ber_str2bv( buf, 0, 1, a->a_vals );
+               len = strlen( buf );
+               if ( len > a->a_vals[ 0 ].bv_len ) {
+                       a->a_vals[ 0 ].bv_val = ber_memrealloc( a->a_vals[ 0 ].bv_val, len + 1 );
+               }
+               a->a_vals[ 0 ].bv_len = len;
+               AC_MEMCPY( a->a_vals[ 0 ].bv_val, buf, len + 1 );
+
+               /* FIXME: touch modifyTimestamp? */
        }
 
-       return( 0 );
+       return SLAP_CB_CONTINUE;
 }
 
 static int
 conn_create(
+       monitor_info_t          *mi,
        Connection              *c,
-       Entry                   **ep
-)
+       Entry                   **ep,
+       monitor_subsys_t        *ms )
 {
-       struct monitorentrypriv *mp;
-       struct tm               *ltm;
-       char                    buf[1024];
-       char                    buf2[22];
-       char                    buf3[22];
+       monitor_entry_t *mp;
+       struct tm       tm;
+       char            buf[ BACKMONITOR_BUFSIZE ];
+       char            buf2[ LDAP_LUTIL_GENTIME_BUFSIZE ];
+       char            buf3[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 
-       struct berval           bv[2];
+       struct berval bv, ctmbv, mtmbv;
+       struct berval bv_unknown= BER_BVC("unknown");
 
-       Entry                   *e;
+       Entry           *e;
 
        assert( c != NULL );
        assert( ep != NULL );
 
-       snprintf( buf, sizeof( buf ),
-               "dn: cn=" CONN_CN_PREFIX " %ld,%s\n"
-               SLAPD_MONITOR_OBJECTCLASSES
-               "cn: " CONN_CN_PREFIX " %ld\n",
-               c->c_connid, monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val,
-               c->c_connid );
-       e = str2entry( buf );
+       ldap_pvt_gmtime( &c->c_starttime, &tm );
+
+       ctmbv.bv_len = lutil_gentime( buf2, sizeof( buf2 ), &tm );
+       ctmbv.bv_val = buf2;
+
+       ldap_pvt_gmtime( &c->c_activitytime, &tm );
+       mtmbv.bv_len = lutil_gentime( buf3, sizeof( buf3 ), &tm );
+       mtmbv.bv_val = buf3;
+
+       bv.bv_len = snprintf( buf, sizeof( buf ),
+               "cn=Connection %ld", c->c_connid );
+       bv.bv_val = buf;
+       e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv, 
+               mi->mi_oc_monitorConnection, mi, &ctmbv, &mtmbv );
 
        if ( e == NULL) {
-#ifdef NEW_LOGGING
-               LDAP_LOG(( "operation", LDAP_LEVEL_CRIT,
-                       "monitor_subsys_conn_create: "
-                       "unable to create entry "
-                       "'cn=" CONN_CN_PREFIX " %ld,%s' entry\n",
-                       c->c_connid, 
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val ));
-#else
                Debug( LDAP_DEBUG_ANY,
                        "monitor_subsys_conn_create: "
                        "unable to create entry "
-                       "'cn=" CONN_CN_PREFIX " %ld,%s' entry\n",
+                       "\"cn=Connection %ld,%s\"\n",
                        c->c_connid, 
-                       monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val, 0 );
-#endif
+                       ms->mss_dn.bv_val, 0 );
                return( -1 );
        }
 
-       ldap_pvt_thread_mutex_lock( &gmtime_mutex );
-       
-       ltm = gmtime( &c->c_starttime );
-       strftime( buf2, sizeof(buf2), "%Y%m%d%H%M%SZ", ltm );
+#ifdef MONITOR_LEGACY_CONN
+       /* NOTE: this will disappear, as the exploded data
+        * has been moved to dedicated attributes */
+       bv.bv_len = snprintf( buf, sizeof( buf ),
+                       "%ld "
+                       ": %ld "
+                       ": %ld/%ld/%ld/%ld "
+                       ": %ld/%ld/%ld "
+                       ": %s%s%s%s%s%s "
+                       ": %s "
+                       ": %s "
+                       ": %s "
+                       ": %s "
+                       ": %s "
+                       ": %s "
+                       ": %s",
+                       c->c_connid,
+                       (long) c->c_protocol,
+                       c->c_n_ops_received, c->c_n_ops_executing,
+                               c->c_n_ops_pending, c->c_n_ops_completed,
                        
-       ltm = gmtime( &c->c_activitytime );
-       strftime( buf3, sizeof(buf2), "%Y%m%d%H%M%SZ", ltm );
+                       /* add low-level counters here */
+                       c->c_n_get, c->c_n_read, c->c_n_write,
                        
-       ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
-
-       sprintf( buf,
-               "%ld : %ld "
-               ": %ld/%ld/%ld/%ld "
-               ": %ld/%ld/%ld "
-               ": %s%s%s%s%s%s "
-               ": %s : %s : %s "
-               ": %s : %s : %s : %s",
-               c->c_connid,
-               (long) c->c_protocol,
-               c->c_n_ops_received, c->c_n_ops_executing,
-               c->c_n_ops_pending, c->c_n_ops_completed,
-               
-               /* add low-level counters here */
-               c->c_n_get, c->c_n_read, c->c_n_write,
-               
-               c->c_currentber ? "r" : "",
-               c->c_writewaiter ? "w" : "",
-               LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
-               LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
-               connection_state2str( c->c_conn_state ),
-               c->c_sasl_bind_in_progress ? "S" : "",
-               
-               c->c_cdn.bv_len ? c->c_cdn.bv_val : SLAPD_ANONYMOUS,
-               
-               c->c_listener_url.bv_val,
-               c->c_peer_domain.bv_val,
-               c->c_peer_name.bv_val,
-               c->c_sock_name.bv_val,
-               
-               buf2,
-               buf3
-               );
+                       c->c_currentber ? "r" : "",
+                       c->c_writewaiter ? "w" : "",
+                       LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
+                       LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
+                       connection_state2str( c->c_conn_state ),
+                       c->c_sasl_bind_in_progress ? "S" : "",
+                       
+                       c->c_dn.bv_len ? c->c_dn.bv_val : SLAPD_ANONYMOUS,
+                       
+                       c->c_listener_url.bv_val,
+                       BER_BVISNULL( &c->c_peer_domain )
+                               ? "" : c->c_peer_domain.bv_val,
+                       BER_BVISNULL( &c->c_peer_name )
+                               ? "" : c->c_peer_name.bv_val,
+                       c->c_sock_name.bv_val,
+                       
+                       buf2,
+                       buf3 );
+       attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo, &bv, NULL );
+#endif /* MONITOR_LEGACY_CONN */
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%lu", c->c_connid );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionNumber, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", (long) c->c_protocol );
+       attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionProtocol, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_received );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionOpsReceived, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_executing );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionOpsExecuting, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_pending );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionOpsPending, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_completed );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionOpsCompleted, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_get );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionGet, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_read );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionRead, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_write );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionWrite, &bv, NULL );
+
+       bv.bv_len = snprintf( buf, sizeof( buf ), "%s%s%s%s%s%s",
+                       c->c_currentber ? "r" : "",
+                       c->c_writewaiter ? "w" : "",
+                       LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
+                       LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
+                       connection_state2str( c->c_conn_state ),
+                       c->c_sasl_bind_in_progress ? "S" : "" );
+       attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionMask, &bv, NULL );
 
-       bv[1].bv_val = NULL;
-       bv[0].bv_val = buf;
-       bv[0].bv_len = strlen( buf );
-       attr_merge( e, monitor_ad_desc, bv );
+       attr_merge_one( e, mi->mi_ad_monitorConnectionAuthzDN,
+               &c->c_dn, &c->c_ndn );
 
-       mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
+       /* NOTE: client connections leave the c_peer_* fields NULL */
+       assert( !BER_BVISNULL( &c->c_listener_url ) );
+       attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionListener,
+               &c->c_listener_url, NULL );
+
+       attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionPeerDomain,
+               BER_BVISNULL( &c->c_peer_domain ) ? &bv_unknown : &c->c_peer_domain,
+               NULL );
+
+       attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionPeerAddress,
+               BER_BVISNULL( &c->c_peer_name ) ? &bv_unknown : &c->c_peer_name,
+               NULL );
+
+       assert( !BER_BVISNULL( &c->c_sock_name ) );
+       attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionLocalAddress,
+               &c->c_sock_name, NULL );
+
+       attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionStartTime, &ctmbv, NULL );
+
+       attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionActivityTime, &mtmbv, NULL );
+
+       mp = monitor_entrypriv_create();
+       if ( mp == NULL ) {
+               return LDAP_OTHER;
+       }
        e->e_private = ( void * )mp;
-       mp->mp_info = &monitor_subsys[ SLAPD_MONITOR_CONN ];
-       mp->mp_children = NULL;
+       mp->mp_info = ms;
        mp->mp_flags = MONITOR_F_SUB | MONITOR_F_VOLATILE;
 
        *ep = e;
 
-       return( 0 );
+       return SLAP_CB_CONTINUE;
 }
 
-int 
+static int 
 monitor_subsys_conn_create( 
-       struct monitorinfo      *mi,
+       Operation               *op,
+       SlapReply               *rs,
        struct berval           *ndn,
        Entry                   *e_parent,
-       Entry                   **ep
-)
+       Entry                   **ep )
 {
-       Connection              *c;
-       int                     connindex;
-       struct monitorentrypriv *mp;
+       monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
+
+       int                     rc = SLAP_CB_CONTINUE;
+       monitor_subsys_t        *ms;
 
        assert( mi != NULL );
        assert( e_parent != NULL );
        assert( ep != NULL );
 
+       ms = (( monitor_entry_t *)e_parent->e_private)->mp_info;
+
        *ep = NULL;
 
        if ( ndn == NULL ) {
-               Entry *e, *e_tmp = NULL;
+               Connection      *c;
+               int             connindex;
+               Entry           *e = NULL,
+                               *e_tmp = NULL;
 
                /* create all the children of e_parent */
                for ( c = connection_first( &connindex );
                                c != NULL;
-                               c = connection_next( c, &connindex )) {
-                       if ( conn_create( c, &e ) || e == NULL ) {
-                               connection_done(c);
+                               c = connection_next( c, &connindex ) )
+               {
+                       monitor_entry_t         *mp;
+
+                       if ( conn_create( mi, c, &e, ms ) != SLAP_CB_CONTINUE
+                                       || e == NULL )
+                       {
                                for ( ; e_tmp != NULL; ) {
-                                       mp = ( struct monitorentrypriv * )e_tmp->e_private;
+                                       mp = ( monitor_entry_t * )e_tmp->e_private;
                                        e = mp->mp_next;
 
                                        ch_free( mp );
@@ -386,54 +469,60 @@ monitor_subsys_conn_create(
 
                                        e_tmp = e;
                                }
-                               return( -1 );
+                               rc = rs->sr_err = LDAP_OTHER;
+                               break;
                        }
-                       mp = ( struct monitorentrypriv * )e->e_private;
+                       mp = ( monitor_entry_t * )e->e_private;
                        mp->mp_next = e_tmp;
                        e_tmp = e;
                }
-               connection_done(c);
-
+               connection_done( c );
                *ep = e;
 
        } else {
-               LDAPRDN         *values = NULL;
-               const char      *text = NULL;
-               unsigned long   connid;
-              
-               /* create exactly the required entry */
+               Connection              *c;
+               int                     connindex;
+               unsigned long           connid;
+               char                    *next = NULL;
+               static struct berval    nconn_bv = BER_BVC( "cn=connection " );
 
-               if ( ldap_bv2rdn( ndn, &values, (char **)&text,
-                       LDAP_DN_FORMAT_LDAP ) )
+               rc = LDAP_NO_SUCH_OBJECT;
+              
+               /* create exactly the required entry;
+                * the normalized DN must start with "cn=connection ",
+                * followed by the connection id, followed by
+                * the RDN separator "," */
+               if ( ndn->bv_len <= nconn_bv.bv_len
+                               || strncmp( ndn->bv_val, nconn_bv.bv_val, nconn_bv.bv_len ) != 0 )
                {
-                       return( -1 );
+                       return -1;
                }
                
-               assert( values );
-               assert( values[ 0 ][ 0 ] );
-
-               connid = atol( values[ 0 ][ 0 ]->la_value.bv_val
-                               + sizeof( CONN_CN_PREFIX ) );
-
-               ldap_rdnfree( values );
+               connid = strtol( &ndn->bv_val[ nconn_bv.bv_len ], &next, 10 );
+               if ( next[ 0 ] != ',' ) {
+                       return ( rs->sr_err = LDAP_OTHER );
+               }
 
                for ( c = connection_first( &connindex );
                                c != NULL;
-                               c = connection_next( c, &connindex )) {
+                               c = connection_next( c, &connindex ) )
+               {
                        if ( c->c_connid == connid ) {
-                               if ( conn_create( c, ep ) || *ep == NULL ) {
-                                       connection_done(c);
-                                       return( -1 );
+                               rc = conn_create( mi, c, ep, ms );
+                               if ( rc != SLAP_CB_CONTINUE ) {
+                                       rs->sr_err = rc;
+
+                               } else if ( *ep == NULL ) {
+                                       rc = rs->sr_err = LDAP_OTHER;
                                }
 
                                break;
                        }
                }
                
-               connection_done(c);
-       
+               connection_done( c );
        }
 
-       return( 0 );
+       return rc;
 }