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 2001-2006 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 #ifndef LDAP_DEVEL
  32 #define MONITOR_LEGACY_CONN
  33 #endif
  34
  35 static int
  36 monitor_subsys_conn_update(
  37         Operation               *op,
  38         SlapReply               *rs,
  39         Entry                   *e );
  40
  41 static int
  42 monitor_subsys_conn_create(
  43         Operation               *op,
  44         SlapReply               *rs,
  45         struct berval           *ndn,
  46         Entry                   *e_parent,
  47         Entry                   **ep );
  48
  49 int
  50 monitor_subsys_conn_init(
  51         BackendDB               *be,
  52         monitor_subsys_t        *ms )
  53 {
  54         monitor_info_t  *mi;
  55         Entry           *e, **ep, *e_conn;
  56         monitor_entry_t *mp;
  57         struct berval   bv;
  58
  59         assert( be != NULL );
  60
  61         ms->mss_update = monitor_subsys_conn_update;
  62         ms->mss_create = monitor_subsys_conn_create;
  63
  64         mi = ( monitor_info_t * )be->be_private;
  65
  66         if ( monitor_cache_get( mi, &ms->mss_ndn, &e_conn ) ) {
  67                 Debug( LDAP_DEBUG_ANY,
  68                         "monitor_subsys_conn_init: "
  69                         "unable to get entry \"%s\"\n",
  70                         ms->mss_ndn.bv_val, 0, 0 );
  71                 return( -1 );
  72         }
  73
  74         mp = ( monitor_entry_t * )e_conn->e_private;
  75         mp->mp_children = NULL;
  76         ep = &mp->mp_children;
  77
  78         /*
  79          * Total conns
  80          */
  81         BER_BVSTR( &bv, "cn=Total" );
  82         e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
  83                 mi->mi_oc_monitorCounterObject, mi, NULL, NULL );
  84
  85         if ( e == NULL ) {
  86                 Debug( LDAP_DEBUG_ANY,
  87                         "monitor_subsys_conn_init: "
  88                         "unable to create entry \"cn=Total,%s\"\n",
  89                         ms->mss_ndn.bv_val, 0, 0 );
  90                 return( -1 );
  91         }
  92
  93         BER_BVSTR( &bv, "0" );
  94         attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, &bv );
  95
  96         mp = monitor_entrypriv_create();
  97         if ( mp == NULL ) {
  98                 return -1;
  99         }
 100         e->e_private = ( void * )mp;
 101         mp->mp_info = ms;
 102         mp->mp_flags = ms->mss_flags \
 103                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 104         mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 105
 106         if ( monitor_cache_add( mi, e ) ) {
 107                 Debug( LDAP_DEBUG_ANY,
 108                         "monitor_subsys_conn_init: "
 109                         "unable to add entry \"cn=Total,%s\"\n",
 110                         ms->mss_ndn.bv_val, 0, 0 );
 111                 return( -1 );
 112         }
 113
 114         *ep = e;
 115         ep = &mp->mp_next;
 116
 117         /*
 118          * Current conns
 119          */
 120         BER_BVSTR( &bv, "cn=Current" );
 121         e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
 122                 mi->mi_oc_monitorCounterObject, mi, NULL, NULL );
 123
 124         if ( e == NULL ) {
 125                 Debug( LDAP_DEBUG_ANY,
 126                         "monitor_subsys_conn_init: "
 127                         "unable to create entry \"cn=Current,%s\"\n",
 128                         ms->mss_ndn.bv_val, 0, 0 );
 129                 return( -1 );
 130         }
 131
 132         BER_BVSTR( &bv, "0" );
 133         attr_merge_one( e, mi->mi_ad_monitorCounter, &bv, &bv );
 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 \
 142                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 143         mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 144
 145         if ( monitor_cache_add( mi, e ) ) {
 146                 Debug( LDAP_DEBUG_ANY,
 147                         "monitor_subsys_conn_init: "
 148                         "unable to add entry \"cn=Current,%s\"\n",
 149                         ms->mss_ndn.bv_val, 0, 0 );
 150                 return( -1 );
 151         }
 152
 153         *ep = e;
 154         ep = &mp->mp_next;
 155
 156         monitor_cache_release( mi, e_conn );
 157
 158         return( 0 );
 159 }
 160
 161 static int
 162 monitor_subsys_conn_update(
 163         Operation               *op,
 164         SlapReply               *rs,
 165         Entry                   *e )
 166 {
 167         monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
 168
 169         long                    n = -1;
 170         static struct berval    total_bv = BER_BVC( "cn=total" ),
 171                                 current_bv = BER_BVC( "cn=current" );
 172         struct berval           rdn;
 173
 174         assert( mi != NULL );
 175         assert( e != NULL );
 176
 177         dnRdn( &e->e_nname, &rdn );
 178
 179         if ( dn_match( &rdn, &total_bv ) ) {
 180                 n = connections_nextid();
 181
 182         } else if ( dn_match( &rdn, &current_bv ) ) {
 183                 Connection      *c;
 184                 int             connindex;
 185
 186                 for ( n = 0, c = connection_first( &connindex );
 187                                 c != NULL;
 188                                 n++, c = connection_next( c, &connindex ) ) {
 189                         /* No Op */ ;
 190                 }
 191                 connection_done( c );
 192         }
 193
 194         if ( n != -1 ) {
 195                 Attribute       *a;
 196                 char            buf[] = "+9223372036854775807L";
 197                 ber_len_t       len;
 198
 199                 a = attr_find( e->e_attrs, mi->mi_ad_monitorCounter );
 200                 if ( a == NULL ) {
 201                         return( -1 );
 202                 }
 203
 204                 snprintf( buf, sizeof( buf ), "%ld", n );
 205                 len = strlen( buf );
 206                 if ( len > a->a_vals[ 0 ].bv_len ) {
 207                         a->a_vals[ 0 ].bv_val = ber_memrealloc( a->a_vals[ 0 ].bv_val, len + 1 );
 208                 }
 209                 a->a_vals[ 0 ].bv_len = len;
 210                 AC_MEMCPY( a->a_vals[ 0 ].bv_val, buf, len + 1 );
 211
 212                 /* FIXME: touch modifyTimestamp? */
 213         }
 214
 215         return SLAP_CB_CONTINUE;
 216 }
 217
 218 static int
 219 conn_create(
 220         monitor_info_t          *mi,
 221         Connection              *c,
 222         Entry                   **ep,
 223         monitor_subsys_t        *ms )
 224 {
 225         monitor_entry_t *mp;
 226         struct tm       *tm;
 227         char            buf[ BACKMONITOR_BUFSIZE ];
 228         char            buf2[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 229         char            buf3[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 230
 231         struct berval bv, ctmbv, mtmbv, bv2, bv3;
 232         struct berval bv_unknown= BER_BVC("unknown");
 233
 234         Entry           *e;
 235
 236 #ifdef HACK_LOCAL_TIME
 237         char            ctmbuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 238         char            mtmbuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 239 #endif
 240 #ifdef HAVE_GMTIME_R
 241         struct tm       tm_buf;
 242 #endif /* HAVE_GMTIME_R */
 243
 244         assert( c != NULL );
 245         assert( ep != NULL );
 246
 247 #ifndef HAVE_GMTIME_R
 248         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 249 #endif
 250
 251 #ifdef HAVE_GMTIME_R
 252         tm = gmtime_r( &c->c_starttime, &tm_buf );
 253 #else
 254         tm = gmtime( &c->c_starttime );
 255 #endif
 256         bv2.bv_len = lutil_gentime( buf2, sizeof( buf2 ), tm );
 257         bv2.bv_val = buf2;
 258 #ifdef HACK_LOCAL_TIME
 259 # ifdef HAVE_LOCALTIME_R
 260         tm = localtime_r( &c->c_starttime, &tm_buf );
 261 # else
 262         tm = localtime( &c->c_starttime );
 263 # endif
 264         ctmbv.bv_len = lutil_localtime( ctmbuf, sizeof( ctmbuf ), tm, -timezone );
 265         ctmbv.bv_val = ctmbuf;
 266 #else /* !HACK_LOCAL_TIME */
 267         ctmbv = bv2;
 268 #endif
 269
 270 #ifdef HAVE_GMTIME_R
 271         tm = gmtime_r( &c->c_activitytime, &tm_buf );
 272 #else
 273         tm = gmtime( &c->c_activitytime );
 274 #endif
 275         bv3.bv_len = lutil_gentime( buf3, sizeof( buf3 ), tm );
 276         bv3.bv_val = buf3;
 277 #ifdef HACK_LOCAL_TIME
 278 # ifdef HAVE_LOCALTIME_R
 279         tm = localtime_r( &c->c_activitytime, &tm_buf );
 280 # else
 281         tm = localtime( &c->c_activitytime );
 282 # endif /* HAVE_LOCALTIME_R */
 283         mtmbv.bv_len = lutil_localtime( mtmbuf, sizeof( mtmbuf ), tm, -timezone );
 284         mtmbv.bv_val = mtmbuf;
 285 #else /* !HACK_LOCAL_TIME */
 286         mtmbv = bv3;
 287 #endif
 288
 289 #ifndef HAVE_GMTIME_R
 290         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 291 #endif
 292
 293         bv.bv_len = snprintf( buf, sizeof( buf ),
 294                 "cn=Connection %ld", c->c_connid );
 295         bv.bv_val = buf;
 296         e = monitor_entry_stub( &ms->mss_dn, &ms->mss_ndn, &bv,
 297                 mi->mi_oc_monitorConnection, mi, &ctmbv, &mtmbv );
 298
 299         if ( e == NULL) {
 300                 Debug( LDAP_DEBUG_ANY,
 301                         "monitor_subsys_conn_create: "
 302                         "unable to create entry "
 303                         "\"cn=Connection %ld,%s\"\n",
 304                         c->c_connid,
 305                         ms->mss_dn.bv_val, 0 );
 306                 return( -1 );
 307         }
 308
 309 #ifdef MONITOR_LEGACY_CONN
 310         /* NOTE: this will disappear, as the exploded data
 311          * has been moved to dedicated attributes */
 312         bv.bv_len = snprintf( buf, sizeof( buf ),
 313                         "%ld "
 314                         ": %ld "
 315                         ": %ld/%ld/%ld/%ld "
 316                         ": %ld/%ld/%ld "
 317                         ": %s%s%s%s%s%s "
 318                         ": %s "
 319                         ": %s "
 320                         ": %s "
 321                         ": %s "
 322                         ": %s "
 323                         ": %s "
 324                         ": %s",
 325                         c->c_connid,
 326                         (long) c->c_protocol,
 327                         c->c_n_ops_received, c->c_n_ops_executing,
 328                                 c->c_n_ops_pending, c->c_n_ops_completed,
 329
 330                         /* add low-level counters here */
 331                         c->c_n_get, c->c_n_read, c->c_n_write,
 332
 333                         c->c_currentber ? "r" : "",
 334                         c->c_writewaiter ? "w" : "",
 335                         LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
 336                         LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
 337                         connection_state2str( c->c_conn_state ),
 338                         c->c_sasl_bind_in_progress ? "S" : "",
 339
 340                         c->c_dn.bv_len ? c->c_dn.bv_val : SLAPD_ANONYMOUS,
 341
 342                         c->c_listener_url.bv_val,
 343                         c->c_peer_domain.bv_val,
 344                         c->c_peer_name.bv_val,
 345                         c->c_sock_name.bv_val,
 346
 347                         buf2,
 348                         buf3 );
 349         attr_merge_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_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_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         attr_merge_one( e, mi->mi_ad_monitorConnectionListener,
 393                 &c->c_listener_url, NULL );
 394
 395         attr_merge_one( e, mi->mi_ad_monitorConnectionPeerDomain,
 396                 BER_BVISNULL( &c->c_peer_domain ) ? &bv_unknown : &c->c_peer_domain,
 397                 NULL );
 398
 399         attr_merge_one( e, mi->mi_ad_monitorConnectionPeerAddress,
 400                 BER_BVISNULL( &c->c_peer_name ) ? &bv_unknown : &c->c_peer_name,
 401                 NULL );
 402
 403         attr_merge_one( e, mi->mi_ad_monitorConnectionLocalAddress,
 404                 &c->c_sock_name, NULL );
 405
 406         attr_merge_one( e, mi->mi_ad_monitorConnectionStartTime, &bv2, NULL );
 407
 408         attr_merge_one( e, mi->mi_ad_monitorConnectionActivityTime, &bv3, NULL );
 409
 410         mp = monitor_entrypriv_create();
 411         if ( mp == NULL ) {
 412                 return LDAP_OTHER;
 413         }
 414         e->e_private = ( void * )mp;
 415         mp->mp_info = ms;
 416         mp->mp_flags = MONITOR_F_SUB | MONITOR_F_VOLATILE;
 417
 418         *ep = e;
 419
 420         return SLAP_CB_CONTINUE;
 421 }
 422
 423 static int
 424 monitor_subsys_conn_create(
 425         Operation               *op,
 426         SlapReply               *rs,
 427         struct berval           *ndn,
 428         Entry                   *e_parent,
 429         Entry                   **ep )
 430 {
 431         monitor_info_t  *mi = ( monitor_info_t * )op->o_bd->be_private;
 432
 433         Connection              *c;
 434         int                     connindex;
 435         monitor_entry_t         *mp;
 436         int                     rc = SLAP_CB_CONTINUE;
 437         monitor_subsys_t        *ms;
 438
 439         assert( mi != NULL );
 440         assert( e_parent != NULL );
 441         assert( ep != NULL );
 442
 443         ms = (( monitor_entry_t *)e_parent->e_private)->mp_info;
 444
 445         *ep = NULL;
 446
 447         if ( ndn == NULL ) {
 448                 Entry   *e = NULL,
 449                         *e_tmp = NULL;
 450
 451                 /* create all the children of e_parent */
 452                 for ( c = connection_first( &connindex );
 453                                 c != NULL;
 454                                 c = connection_next( c, &connindex ) )
 455                 {
 456                         if ( conn_create( mi, c, &e, ms ) != SLAP_CB_CONTINUE
 457                                         || e == NULL )
 458                         {
 459                                 for ( ; e_tmp != NULL; ) {
 460                                         mp = ( monitor_entry_t * )e_tmp->e_private;
 461                                         e = mp->mp_next;
 462
 463                                         ch_free( mp );
 464                                         e_tmp->e_private = NULL;
 465                                         entry_free( e_tmp );
 466
 467                                         e_tmp = e;
 468                                 }
 469                                 rc = rs->sr_err = LDAP_OTHER;
 470                                 break;
 471                         }
 472                         mp = ( monitor_entry_t * )e->e_private;
 473                         mp->mp_next = e_tmp;
 474                         e_tmp = e;
 475                 }
 476                 connection_done( c );
 477                 *ep = e;
 478
 479         } else {
 480                 unsigned long           connid;
 481                 char                    *next = NULL;
 482                 static struct berval    nconn_bv = BER_BVC( "cn=connection " );
 483
 484                 rc = LDAP_NO_SUCH_OBJECT;
 485
 486                 /* create exactly the required entry;
 487                  * the normalized DN must start with "cn=connection ",
 488                  * followed by the connection id, followed by
 489                  * the RDN separator "," */
 490                 if ( ndn->bv_len <= nconn_bv.bv_len
 491                                 || strncmp( ndn->bv_val, nconn_bv.bv_val, nconn_bv.bv_len ) != 0 )
 492                 {
 493                         return -1;
 494                 }
 495
 496                 connid = strtol( &ndn->bv_val[ nconn_bv.bv_len ], &next, 10 );
 497                 if ( next[ 0 ] != ',' ) {
 498                         return ( rs->sr_err = LDAP_OTHER );
 499                 }
 500
 501                 for ( c = connection_first( &connindex );
 502                                 c != NULL;
 503                                 c = connection_next( c, &connindex ) )
 504                 {
 505                         if ( c->c_connid == connid ) {
 506                                 rc = conn_create( mi, c, ep, ms );
 507                                 if ( rc != SLAP_CB_CONTINUE ) {
 508                                         rs->sr_err = rc;
 509
 510                                 } else if ( *ep == NULL ) {
 511                                         rc = rs->sr_err = LDAP_OTHER;
 512                                 }
 513
 514                                 break;
 515                         }
 516                 }
 517
 518                 connection_done( c );
 519         }
 520
 521         return rc;
 522 }
 523