git.sur5r.net Git - openldap/blob - servers/slapd/back-monitor/conn.c

   1 /* conn.c - deal with connection subsystem */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2001-2018 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 #include "portable.h"
  23
  24 #include <stdio.h>
  25 #include <ac/string.h>
  26
  27 #include "slap.h"
  28 #include "lutil.h"
  29 #include "back-monitor.h"
  30
  31 static int
  32 monitor_subsys_conn_update(
  33         Operation               *op,
  34         SlapReply               *rs,
  35         Entry                   *e );
  36
  37 static int
  38 monitor_subsys_conn_create(
  39         Operation               *op,
  40         SlapReply               *rs,
  41         struct berval           *ndn,
  42         Entry                   *e_parent,
  43         Entry                   **ep );
  44
  45 int
  46 monitor_subsys_conn_init(
  47         BackendDB               *be,
  48         monitor_subsys_t        *ms )
  49 {
  50         monitor_info_t  *mi;
  51         Entry           *e, **ep, *e_conn;
  52         monitor_entry_t *mp;
  53         char            buf[ BACKMONITOR_BUFSIZE ];
  54         struct berval   bv;
  55
  56         assert( be != NULL );
  57
  58         ms->mss_update = monitor_subsys_conn_update;
  59         ms->mss_create = monitor_subsys_conn_create;
  60
  61         mi = ( monitor_info_t * )be->be_private;
  62
  63         if ( monitor_cache_get( mi, &ms->mss_ndn, &e_conn ) ) {
  64                 Debug( LDAP_DEBUG_ANY,
  65                         "monitor_subsys_conn_init: "
  66                         "unable to get entry \"%s\"\n",
  67                         ms->mss_ndn.bv_val, 0, 0 );
  68                 return( -1 );
  69         }
  70
  71         mp = ( monitor_entry_t * )e_conn->e_private;
  72         mp->mp_children = NULL;
  73         ep = &mp->mp_children;
  74
  75         /*
  76          * Max file descriptors
  77          */
  78         BER_BVSTR( &bv, "cn=Max File Descriptors" );
  79         e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
  80                 mi->mi_oc_monitorCounterObject, NULL, NULL );
  81
  82         if ( e == NULL ) {
  83                 Debug( LDAP_DEBUG_ANY,
  84                         "monitor_subsys_conn_init: "
  85                         "unable to create entry \"%s,%s\"\n",
  86                         bv.bv_val, ms->mss_ndn.bv_val, 0 );
  87                 return( -1 );
  88         }
  89
  90         if ( dtblsize ) {
  91                 bv.bv_val = buf;
  92                 bv.bv_len = snprintf( buf, sizeof( buf ), "%d", dtblsize );
  93
  94         } else {
  95                 BER_BVSTR( &bv, "0" );
  96         }
  97         attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
  98
  99         mp = monitor_entrypriv_create();
 100         if ( mp == NULL ) {
 101                 return -1;
 102         }
 103         e->e_private = ( void * )mp;
 104         mp->mp_info = ms;
 105         mp->mp_flags = ms->mss_flags \
 106                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 107         mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 108
 109         if ( monitor_cache_add( mi, e ) ) {
 110                 Debug( LDAP_DEBUG_ANY,
 111                         "monitor_subsys_conn_init: "
 112                         "unable to add entry \"cn=Total,%s\"\n",
 113                         ms->mss_ndn.bv_val, 0, 0 );
 114                 return( -1 );
 115         }
 116
 117         *ep = e;
 118         ep = &mp->mp_next;
 119
 120         /*
 121          * Total conns
 122          */
 123         BER_BVSTR( &bv, "cn=Total" );
 124         e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
 125                 mi->mi_oc_monitorCounterObject, NULL, NULL );
 126
 127         if ( e == NULL ) {
 128                 Debug( LDAP_DEBUG_ANY,
 129                         "monitor_subsys_conn_init: "
 130                         "unable to create entry \"cn=Total,%s\"\n",
 131                         ms->mss_ndn.bv_val, 0, 0 );
 132                 return( -1 );
 133         }
 134
 135         BER_BVSTR( &bv, "-1" );
 136         attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
 137
 138         mp = monitor_entrypriv_create();
 139         if ( mp == NULL ) {
 140                 return -1;
 141         }
 142         e->e_private = ( void * )mp;
 143         mp->mp_info = ms;
 144         mp->mp_flags = ms->mss_flags \
 145                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 146         mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 147
 148         if ( monitor_cache_add( mi, e ) ) {
 149                 Debug( LDAP_DEBUG_ANY,
 150                         "monitor_subsys_conn_init: "
 151                         "unable to add entry \"cn=Total,%s\"\n",
 152                         ms->mss_ndn.bv_val, 0, 0 );
 153                 return( -1 );
 154         }
 155
 156         *ep = e;
 157         ep = &mp->mp_next;
 158
 159         /*
 160          * Current conns
 161          */
 162         BER_BVSTR( &bv, "cn=Current" );
 163         e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
 164                 mi->mi_oc_monitorCounterObject, NULL, NULL );
 165
 166         if ( e == NULL ) {
 167                 Debug( LDAP_DEBUG_ANY,
 168                         "monitor_subsys_conn_init: "
 169                         "unable to create entry \"cn=Current,%s\"\n",
 170                         ms->mss_ndn.bv_val, 0, 0 );
 171                 return( -1 );
 172         }
 173
 174         BER_BVSTR( &bv, "0" );
 175         attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, NULL );
 176
 177         mp = monitor_entrypriv_create();
 178         if ( mp == NULL ) {
 179                 return -1;
 180         }
 181         e->e_private = ( void * )mp;
 182         mp->mp_info = ms;
 183         mp->mp_flags = ms->mss_flags \
 184                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 185         mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 186
 187         if ( monitor_cache_add( mi, e ) ) {
 188                 Debug( LDAP_DEBUG_ANY,
 189                         "monitor_subsys_conn_init: "
 190                         "unable to add entry \"cn=Current,%s\"\n",
 191                         ms->mss_ndn.bv_val, 0, 0 );
 192                 return( -1 );
 193         }
 194
 195         *ep = e;
 196         ep = &mp->mp_next;
 197
 198         monitor_cache_release( mi, e_conn );
 199
 200         return( 0 );
 201 }
 202
 203 static int
 204 monitor_subsys_conn_update(
 205         Operation               *op,
 206         SlapReply               *rs,
 207         Entry                   *e )
 208 {
 209         monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
 210
 211         long                    n = -1;
 212         static struct berval    total_bv = BER_BVC( "cn=total" ),
 213                                 current_bv = BER_BVC( "cn=current" );
 214         struct berval           rdn;
 215
 216         assert( mi != NULL );
 217         assert( e != NULL );
 218
 219         dnRdn( &e->e_nname, &rdn );
 220
 221         if ( dn_match( &rdn, &total_bv ) ) {
 222                 n = connections_nextid();
 223
 224         } else if ( dn_match( &rdn, &current_bv ) ) {
 225                 Connection      *c;
 226                 ber_socket_t    connindex;
 227
 228                 for ( n = 0, c = connection_first( &connindex );
 229                                 c != NULL;
 230                                 n++, c = connection_next( c, &connindex ) )
 231                 {
 232                         /* No Op */ ;
 233                 }
 234                 connection_done( c );
 235         }
 236
 237         if ( n != -1 ) {
 238                 Attribute       *a;
 239                 char            buf[LDAP_PVT_INTTYPE_CHARS(long)];
 240                 ber_len_t       len;
 241
 242                 a = attr_find( e->e_attrs, mi->mi_ad_monitorCounter );
 243                 if ( a == NULL ) {
 244                         return( -1 );
 245                 }
 246
 247                 snprintf( buf, sizeof( buf ), "%ld", n );
 248                 len = strlen( buf );
 249                 if ( len > a->a_vals[ 0 ].bv_len ) {
 250                         a->a_vals[ 0 ].bv_val = ber_memrealloc( a->a_vals[ 0 ].bv_val, len + 1 );
 251                 }
 252                 a->a_vals[ 0 ].bv_len = len;
 253                 AC_MEMCPY( a->a_vals[ 0 ].bv_val, buf, len + 1 );
 254
 255                 /* FIXME: touch modifyTimestamp? */
 256         }
 257
 258         return SLAP_CB_CONTINUE;
 259 }
 260
 261 static int
 262 conn_create(
 263         monitor_info_t          *mi,
 264         Connection              *c,
 265         Entry                   **ep,
 266         monitor_subsys_t        *ms )
 267 {
 268         monitor_entry_t *mp;
 269         struct tm       tm;
 270         char            buf[ BACKMONITOR_BUFSIZE ];
 271         char            buf2[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 272         char            buf3[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 273
 274         struct berval bv, ctmbv, mtmbv;
 275         struct berval bv_unknown= BER_BVC("unknown");
 276
 277         Entry           *e;
 278
 279         assert( c != NULL );
 280         assert( ep != NULL );
 281
 282         ldap_pvt_gmtime( &c->c_starttime, &tm );
 283
 284         ctmbv.bv_len = lutil_gentime( buf2, sizeof( buf2 ), &tm );
 285         ctmbv.bv_val = buf2;
 286
 287         ldap_pvt_gmtime( &c->c_activitytime, &tm );
 288         mtmbv.bv_len = lutil_gentime( buf3, sizeof( buf3 ), &tm );
 289         mtmbv.bv_val = buf3;
 290
 291         bv.bv_len = snprintf( buf, sizeof( buf ),
 292                 "cn=Connection %ld", c->c_connid );
 293         bv.bv_val = buf;
 294         e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
 295                 mi->mi_oc_monitorConnection, &ctmbv, &mtmbv );
 296
 297         if ( e == NULL) {
 298                 Debug( LDAP_DEBUG_ANY,
 299                         "monitor_subsys_conn_create: "
 300                         "unable to create entry "
 301                         "\"cn=Connection %ld,%s\"\n",
 302                         c->c_connid,
 303                         ms->mss_dn.bv_val, 0 );
 304                 return( -1 );
 305         }
 306
 307 #ifdef MONITOR_LEGACY_CONN
 308         /* NOTE: this will disappear, as the exploded data
 309          * has been moved to dedicated attributes */
 310         bv.bv_len = snprintf( buf, sizeof( buf ),
 311                         "%ld "
 312                         ": %ld "
 313                         ": %ld/%ld/%ld/%ld "
 314                         ": %ld/%ld/%ld "
 315                         ": %s%s%s%s%s%s "
 316                         ": %s "
 317                         ": %s "
 318                         ": %s "
 319                         ": %s "
 320                         ": %s "
 321                         ": %s "
 322                         ": %s",
 323                         c->c_connid,
 324                         (long) c->c_protocol,
 325                         c->c_n_ops_received, c->c_n_ops_executing,
 326                                 c->c_n_ops_pending, c->c_n_ops_completed,
 327
 328                         /* add low-level counters here */
 329                         c->c_n_get, c->c_n_read, c->c_n_write,
 330
 331                         c->c_currentber ? "r" : "",
 332                         c->c_writewaiter ? "w" : "",
 333                         LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
 334                         LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
 335                         connection_state2str( c->c_conn_state ),
 336                         c->c_sasl_bind_in_progress ? "S" : "",
 337
 338                         c->c_dn.bv_len ? c->c_dn.bv_val : SLAPD_ANONYMOUS,
 339
 340                         c->c_listener_url.bv_val,
 341                         BER_BVISNULL( &c->c_peer_domain )
 342                                 ? "" : c->c_peer_domain.bv_val,
 343                         BER_BVISNULL( &c->c_peer_name )
 344                                 ? "" : c->c_peer_name.bv_val,
 345                         c->c_sock_name.bv_val,
 346
 347                         buf2,
 348                         buf3 );
 349         attr_merge_normalize_one( e, mi->mi_ad_monitoredInfo, &bv, NULL );
 350 #endif /* MONITOR_LEGACY_CONN */
 351
 352         bv.bv_len = snprintf( buf, sizeof( buf ), "%lu", c->c_connid );
 353         attr_merge_one( e, mi->mi_ad_monitorConnectionNumber, &bv, NULL );
 354
 355         bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", (long) c->c_protocol );
 356         attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionProtocol, &bv, NULL );
 357
 358         bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_received );
 359         attr_merge_one( e, mi->mi_ad_monitorConnectionOpsReceived, &bv, NULL );
 360
 361         bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_executing );
 362         attr_merge_one( e, mi->mi_ad_monitorConnectionOpsExecuting, &bv, NULL );
 363
 364         bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_pending );
 365         attr_merge_one( e, mi->mi_ad_monitorConnectionOpsPending, &bv, NULL );
 366
 367         bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_ops_completed );
 368         attr_merge_one( e, mi->mi_ad_monitorConnectionOpsCompleted, &bv, NULL );
 369
 370         bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_get );
 371         attr_merge_one( e, mi->mi_ad_monitorConnectionGet, &bv, NULL );
 372
 373         bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_read );
 374         attr_merge_one( e, mi->mi_ad_monitorConnectionRead, &bv, NULL );
 375
 376         bv.bv_len = snprintf( buf, sizeof( buf ), "%ld", c->c_n_write );
 377         attr_merge_one( e, mi->mi_ad_monitorConnectionWrite, &bv, NULL );
 378
 379         bv.bv_len = snprintf( buf, sizeof( buf ), "%s%s%s%s%s%s",
 380                         c->c_currentber ? "r" : "",
 381                         c->c_writewaiter ? "w" : "",
 382                         LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
 383                         LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
 384                         connection_state2str( c->c_conn_state ),
 385                         c->c_sasl_bind_in_progress ? "S" : "" );
 386         attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionMask, &bv, NULL );
 387
 388         attr_merge_one( e, mi->mi_ad_monitorConnectionAuthzDN,
 389                 &c->c_dn, &c->c_ndn );
 390
 391         /* NOTE: client connections leave the c_peer_* fields NULL */
 392         assert( !BER_BVISNULL( &c->c_listener_url ) );
 393         attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionListener,
 394                 &c->c_listener_url, NULL );
 395
 396         attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionPeerDomain,
 397                 BER_BVISNULL( &c->c_peer_domain ) ? &bv_unknown : &c->c_peer_domain,
 398                 NULL );
 399
 400         attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionPeerAddress,
 401                 BER_BVISNULL( &c->c_peer_name ) ? &bv_unknown : &c->c_peer_name,
 402                 NULL );
 403
 404         assert( !BER_BVISNULL( &c->c_sock_name ) );
 405         attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionLocalAddress,
 406                 &c->c_sock_name, NULL );
 407
 408         attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionStartTime, &ctmbv, NULL );
 409
 410         attr_merge_normalize_one( e, mi->mi_ad_monitorConnectionActivityTime, &mtmbv, NULL );
 411
 412         mp = monitor_entrypriv_create();
 413         if ( mp == NULL ) {
 414                 return LDAP_OTHER;
 415         }
 416         e->e_private = ( void * )mp;
 417         mp->mp_info = ms;
 418         mp->mp_flags = MONITOR_F_SUB | MONITOR_F_VOLATILE;
 419
 420         *ep = e;
 421
 422         return SLAP_CB_CONTINUE;
 423 }
 424
 425 static int
 426 monitor_subsys_conn_create(
 427         Operation               *op,
 428         SlapReply               *rs,
 429         struct berval           *ndn,
 430         Entry                   *e_parent,
 431         Entry                   **ep )
 432 {
 433         monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
 434
 435         int                     rc = SLAP_CB_CONTINUE;
 436         monitor_subsys_t        *ms;
 437
 438         assert( mi != NULL );
 439         assert( e_parent != NULL );
 440         assert( ep != NULL );
 441
 442         ms = (( monitor_entry_t *)e_parent->e_private)->mp_info;
 443
 444         *ep = NULL;
 445
 446         if ( ndn == NULL ) {
 447                 Connection      *c;
 448                 ber_socket_t    connindex;
 449                 Entry           *e = NULL,
 450                                 *e_tmp = NULL;
 451
 452                 /* create all the children of e_parent */
 453                 for ( c = connection_first( &connindex );
 454                                 c != NULL;
 455                                 c = connection_next( c, &connindex ) )
 456                 {
 457                         monitor_entry_t         *mp;
 458
 459                         if ( conn_create( mi, c, &e, ms ) != SLAP_CB_CONTINUE
 460                                         || e == NULL )
 461                         {
 462                                 for ( ; e_tmp != NULL; ) {
 463                                         mp = ( monitor_entry_t * )e_tmp->e_private;
 464                                         e = mp->mp_next;
 465
 466                                         ch_free( mp );
 467                                         e_tmp->e_private = NULL;
 468                                         entry_free( e_tmp );
 469
 470                                         e_tmp = e;
 471                                 }
 472                                 rc = rs->sr_err = LDAP_OTHER;
 473                                 break;
 474                         }
 475                         mp = ( monitor_entry_t * )e->e_private;
 476                         mp->mp_next = e_tmp;
 477                         e_tmp = e;
 478                 }
 479                 connection_done( c );
 480                 *ep = e;
 481
 482         } else {
 483                 Connection              *c;
 484                 ber_socket_t            connindex;
 485                 unsigned long           connid;
 486                 char                    *next = NULL;
 487                 static struct berval    nconn_bv = BER_BVC( "cn=connection " );
 488
 489                 rc = LDAP_NO_SUCH_OBJECT;
 490
 491                 /* create exactly the required entry;
 492                  * the normalized DN must start with "cn=connection ",
 493                  * followed by the connection id, followed by
 494                  * the RDN separator "," */
 495                 if ( ndn->bv_len <= nconn_bv.bv_len
 496                                 || strncmp( ndn->bv_val, nconn_bv.bv_val, nconn_bv.bv_len ) != 0 )
 497                 {
 498                         return -1;
 499                 }
 500
 501                 connid = strtol( &ndn->bv_val[ nconn_bv.bv_len ], &next, 10 );
 502                 if ( next[ 0 ] != ',' ) {
 503                         return ( rs->sr_err = LDAP_OTHER );
 504                 }
 505
 506                 for ( c = connection_first( &connindex );
 507                                 c != NULL;
 508                                 c = connection_next( c, &connindex ) )
 509                 {
 510                         if ( c->c_connid == connid ) {
 511                                 rc = conn_create( mi, c, ep, ms );
 512                                 if ( rc != SLAP_CB_CONTINUE ) {
 513                                         rs->sr_err = rc;
 514
 515                                 } else if ( *ep == NULL ) {
 516                                         rc = rs->sr_err = LDAP_OTHER;
 517                                 }
 518
 519                                 break;
 520                         }
 521                 }
 522
 523                 connection_done( c );
 524         }
 525
 526         return rc;
 527 }
 528