1 /*        $NetBSD: sent.c,v 1.3 2021/08/14 16:15:00 christos Exp $    */
2 
3 /* sent.c - deal with data sent subsystem */
4 /* $OpenLDAP$ */
5 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
6  *
7  * Copyright 2001-2021 The OpenLDAP Foundation.
8  * Portions Copyright 2001-2003 Pierangelo Masarati.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted only as authorized by the OpenLDAP
13  * Public License.
14  *
15  * A copy of this license is available in file LICENSE in the
16  * top-level directory of the distribution or, alternatively, at
17  * <http://www.OpenLDAP.org/license.html>.
18  */
19 /* ACKNOWLEDGEMENTS:
20  * This work was initially developed by Pierangelo Masarati for inclusion
21  * in OpenLDAP Software.
22  */
23 
24 #include <sys/cdefs.h>
25 __RCSID("$NetBSD: sent.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 static int
36 monitor_subsys_sent_destroy(
37           BackendDB           *be,
38           monitor_subsys_t    *ms );
39 
40 static int
41 monitor_subsys_sent_update(
42           Operation           *op,
43           SlapReply           *rs,
44           Entry                   *e );
45 
46 enum {
47           MONITOR_SENT_BYTES = 0,
48           MONITOR_SENT_PDU,
49           MONITOR_SENT_ENTRIES,
50           MONITOR_SENT_REFERRALS,
51 
52           MONITOR_SENT_LAST
53 };
54 
55 struct monitor_sent_t {
56           struct berval       rdn;
57           struct berval       nrdn;
58 } monitor_sent[] = {
59           { BER_BVC("cn=Bytes"),                  BER_BVNULL },
60           { BER_BVC("cn=PDU"),                    BER_BVNULL },
61           { BER_BVC("cn=Entries"),      BER_BVNULL },
62           { BER_BVC("cn=Referrals"),    BER_BVNULL },
63           { BER_BVNULL,                           BER_BVNULL }
64 };
65 
66 int
monitor_subsys_sent_init(BackendDB * be,monitor_subsys_t * ms)67 monitor_subsys_sent_init(
68           BackendDB           *be,
69           monitor_subsys_t    *ms )
70 {
71           monitor_info_t      *mi;
72 
73           Entry               **ep, *e_sent;
74           monitor_entry_t     *mp;
75           int                           i;
76 
77           assert( be != NULL );
78 
79           ms->mss_destroy = monitor_subsys_sent_destroy;
80           ms->mss_update = monitor_subsys_sent_update;
81 
82           mi = ( monitor_info_t * )be->be_private;
83 
84           if ( monitor_cache_get( mi, &ms->mss_ndn, &e_sent ) ) {
85                     Debug( LDAP_DEBUG_ANY,
86                               "monitor_subsys_sent_init: "
87                               "unable to get entry \"%s\"\n",
88                               ms->mss_ndn.bv_val );
89                     return( -1 );
90           }
91 
92           mp = ( monitor_entry_t * )e_sent->e_private;
93           mp->mp_children = NULL;
94           ep = &mp->mp_children;
95 
96           for ( i = 0; i < MONITOR_SENT_LAST; i++ ) {
97                     struct berval                 nrdn, bv;
98                     Entry                         *e;
99 
100                     e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn,
101                               &monitor_sent[i].rdn, mi->mi_oc_monitorCounterObject,
102                               NULL, NULL );
103 
104                     if ( e == NULL ) {
105                               Debug( LDAP_DEBUG_ANY,
106                                         "monitor_subsys_sent_init: "
107                                         "unable to create entry \"%s,%s\"\n",
108                                         monitor_sent[ i ].rdn.bv_val,
109                                         ms->mss_ndn.bv_val );
110                               return( -1 );
111                     }
112 
113                     /* steal normalized RDN */
114                     dnRdn( &e->e_nname, &nrdn );
115                     ber_dupbv( &monitor_sent[ i ].nrdn, &nrdn );
116 
117                     BER_BVSTR( &bv, "0" );
118                     attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
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 | MONITOR_F_PERSISTENT;
128 
129                     if ( monitor_cache_add( mi, e ) ) {
130                               Debug( LDAP_DEBUG_ANY,
131                                         "monitor_subsys_sent_init: "
132                                         "unable to add entry \"%s,%s\"\n",
133                                         monitor_sent[ i ].rdn.bv_val,
134                                         ms->mss_ndn.bv_val );
135                               return( -1 );
136                     }
137 
138                     *ep = e;
139                     ep = &mp->mp_next;
140           }
141 
142           monitor_cache_release( mi, e_sent );
143 
144           return( 0 );
145 }
146 
147 static int
monitor_subsys_sent_destroy(BackendDB * be,monitor_subsys_t * ms)148 monitor_subsys_sent_destroy(
149           BackendDB           *be,
150           monitor_subsys_t    *ms )
151 {
152           int                 i;
153 
154           for ( i = 0; i < MONITOR_SENT_LAST; i++ ) {
155                     if ( !BER_BVISNULL( &monitor_sent[ i ].nrdn ) ) {
156                               ch_free( monitor_sent[ i ].nrdn.bv_val );
157                     }
158           }
159 
160           return 0;
161 }
162 
163 static int
monitor_subsys_sent_update(Operation * op,SlapReply * rs,Entry * e)164 monitor_subsys_sent_update(
165           Operation           *op,
166           SlapReply           *rs,
167           Entry                   *e )
168 {
169           monitor_info_t      *mi = ( monitor_info_t *)op->o_bd->be_private;
170 
171           struct berval                 nrdn;
172           ldap_pvt_mp_t                 n;
173           Attribute           *a;
174           slap_counters_t *sc;
175           int                           i;
176 
177           assert( mi != NULL );
178           assert( e != NULL );
179 
180           dnRdn( &e->e_nname, &nrdn );
181 
182           for ( i = 0; i < MONITOR_SENT_LAST; i++ ) {
183                     if ( dn_match( &nrdn, &monitor_sent[ i ].nrdn ) ) {
184                               break;
185                     }
186           }
187 
188           if ( i == MONITOR_SENT_LAST ) {
189                     return SLAP_CB_CONTINUE;
190           }
191 
192           ldap_pvt_thread_mutex_lock(&slap_counters.sc_mutex);
193           switch ( i ) {
194           case MONITOR_SENT_ENTRIES:
195                     ldap_pvt_mp_init_set( n, slap_counters.sc_entries );
196                     for ( sc = slap_counters.sc_next; sc; sc = sc->sc_next ) {
197                               ldap_pvt_thread_mutex_lock( &sc->sc_mutex );
198                               ldap_pvt_mp_add( n, sc->sc_entries );
199                               ldap_pvt_thread_mutex_unlock( &sc->sc_mutex );
200                     }
201                     break;
202 
203           case MONITOR_SENT_REFERRALS:
204                     ldap_pvt_mp_init_set( n, slap_counters.sc_refs );
205                     for ( sc = slap_counters.sc_next; sc; sc = sc->sc_next ) {
206                               ldap_pvt_thread_mutex_lock( &sc->sc_mutex );
207                               ldap_pvt_mp_add( n, sc->sc_refs );
208                               ldap_pvt_thread_mutex_unlock( &sc->sc_mutex );
209                     }
210                     break;
211 
212           case MONITOR_SENT_PDU:
213                     ldap_pvt_mp_init_set( n, slap_counters.sc_pdu );
214                     for ( sc = slap_counters.sc_next; sc; sc = sc->sc_next ) {
215                               ldap_pvt_thread_mutex_lock( &sc->sc_mutex );
216                               ldap_pvt_mp_add( n, sc->sc_pdu );
217                               ldap_pvt_thread_mutex_unlock( &sc->sc_mutex );
218                     }
219                     break;
220 
221           case MONITOR_SENT_BYTES:
222                     ldap_pvt_mp_init_set( n, slap_counters.sc_bytes );
223                     for ( sc = slap_counters.sc_next; sc; sc = sc->sc_next ) {
224                               ldap_pvt_thread_mutex_lock( &sc->sc_mutex );
225                               ldap_pvt_mp_add( n, sc->sc_bytes );
226                               ldap_pvt_thread_mutex_unlock( &sc->sc_mutex );
227                     }
228                     break;
229 
230           default:
231                     assert(0);
232           }
233           ldap_pvt_thread_mutex_unlock(&slap_counters.sc_mutex);
234 
235           a = attr_find( e->e_attrs, mi->mi_ad_monitorCounter );
236           assert( a != NULL );
237 
238           /* NOTE: no minus sign is allowed in the counters... */
239           UI2BV( &a->a_vals[ 0 ], n );
240           ldap_pvt_mp_clear( n );
241 
242           /* FIXME: touch modifyTimestamp? */
243 
244           return SLAP_CB_CONTINUE;
245 }
246 
247