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

   1 /* conn.c - deal with connection subsystem */
   2 /*
   3  * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*
   7  * Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
   8  *
   9  * This work has beed deveolped for the OpenLDAP Foundation
  10  * in the hope that it may be useful to the Open Source community,
  11  * but WITHOUT ANY WARRANTY.
  12  *
  13  * Permission is granted to anyone to use this software for any purpose
  14  * on any computer system, and to alter it and redistribute it, subject
  15  * to the following restrictions:
  16  *
  17  * 1. The author and SysNet s.n.c. are not responsible for the consequences
  18  *    of use of this software, no matter how awful, even if they arise from
  19  *    flaws in it.
  20  *
  21  * 2. The origin of this software must not be misrepresented, either by
  22  *    explicit claim or by omission.  Since few users ever read sources,
  23  *    credits should appear in the documentation.
  24  *
  25  * 3. Altered versions must be plainly marked as such, and must not be
  26  *    misrepresented as being the original software.  Since few users
  27  *    ever read sources, credits should appear in the documentation.
  28  *    SysNet s.n.c. cannot be responsible for the consequences of the
  29  *    alterations.
  30  *
  31  * 4. This notice may not be removed or altered.
  32  */
  33
  34 #include "portable.h"
  35
  36 #include <stdio.h>
  37 #include <ac/string.h>
  38
  39 #include "slap.h"
  40 #include "lutil.h"
  41 #include "back-monitor.h"
  42
  43 #define CONN_CN_PREFIX  "Connection"
  44
  45 int
  46 monitor_subsys_conn_init(
  47         BackendDB               *be
  48 )
  49 {
  50         struct monitorinfo      *mi;
  51
  52         Entry                   *e, *e_tmp, *e_conn;
  53         struct monitorentrypriv *mp;
  54         char                    buf[ BACKMONITOR_BUFSIZE ];
  55         struct berval           bv;
  56
  57         assert( be != NULL );
  58
  59         mi = ( struct monitorinfo * )be->be_private;
  60
  61         if ( monitor_cache_get( mi,
  62                         &monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn, &e_conn ) ) {
  63 #ifdef NEW_LOGGING
  64                 LDAP_LOG( OPERATION, CRIT,
  65                         "monitor_subsys_conn_init: "
  66                         "unable to get entry '%s'\n",
  67                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val, 0, 0 );
  68 #else
  69                 Debug( LDAP_DEBUG_ANY,
  70                         "monitor_subsys_conn_init: "
  71                         "unable to get entry '%s'\n%s%s",
  72                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
  73                         "", "" );
  74 #endif
  75                 return( -1 );
  76         }
  77
  78         e_tmp = NULL;
  79
  80         /*
  81          * Total conns
  82          */
  83         snprintf( buf, sizeof( buf ),
  84                 "dn: cn=Total,%s\n"
  85                 "objectClass: %s\n"
  86                 "structuralObjectClass: %s\n"
  87                 "cn: Total\n",
  88                 monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val,
  89                 mi->oc_monitorCounterObject->soc_cname.bv_val,
  90                 mi->oc_monitorCounterObject->soc_cname.bv_val );
  91
  92         e = str2entry( buf );
  93         if ( e == NULL ) {
  94 #ifdef NEW_LOGGING
  95                 LDAP_LOG( OPERATION, CRIT,
  96                         "monitor_subsys_conn_init: "
  97                         "unable to create entry 'cn=Total,%s'\n",
  98                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val, 0, 0 );
  99 #else
 100                 Debug( LDAP_DEBUG_ANY,
 101                         "monitor_subsys_conn_init: "
 102                         "unable to create entry 'cn=Total,%s'\n%s%s",
 103                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
 104                         "", "" );
 105 #endif
 106                 return( -1 );
 107         }
 108
 109         bv.bv_val = "0";
 110         bv.bv_len = 1;
 111         attr_merge_one( e, mi->ad_monitorCounter, &bv, NULL );
 112
 113         mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
 114         e->e_private = ( void * )mp;
 115         mp->mp_next = e_tmp;
 116         mp->mp_children = NULL;
 117         mp->mp_info = &monitor_subsys[SLAPD_MONITOR_CONN];
 118         mp->mp_flags = monitor_subsys[SLAPD_MONITOR_CONN].mss_flags \
 119                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 120         mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 121
 122         if ( monitor_cache_add( mi, e ) ) {
 123 #ifdef NEW_LOGGING
 124                 LDAP_LOG( OPERATION, CRIT,
 125                         "monitor_subsys_conn_init: "
 126                         "unable to add entry 'cn=Total,%s'\n",
 127                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val, 0, 0 );
 128 #else
 129                 Debug( LDAP_DEBUG_ANY,
 130                         "monitor_subsys_conn_init: "
 131                         "unable to add entry 'cn=Total,%s'\n%s%s",
 132                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
 133                         "", "" );
 134 #endif
 135                 return( -1 );
 136         }
 137
 138         e_tmp = e;
 139
 140         /*
 141          * Current conns
 142          */
 143         snprintf( buf, sizeof( buf ),
 144                 "dn: cn=Current,%s\n"
 145                 "objectClass: %s\n"
 146                 "structuralObjectClass: %s\n"
 147                 "cn: Current\n",
 148                 monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val,
 149                 mi->oc_monitorCounterObject->soc_cname.bv_val,
 150                 mi->oc_monitorCounterObject->soc_cname.bv_val );
 151
 152         e = str2entry( buf );
 153         if ( e == NULL ) {
 154 #ifdef NEW_LOGGING
 155                 LDAP_LOG( OPERATION, CRIT,
 156                         "monitor_subsys_conn_init: "
 157                         "unable to create entry 'cn=Current,%s'\n",
 158                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val, 0, 0 );
 159 #else
 160                 Debug( LDAP_DEBUG_ANY,
 161                         "monitor_subsys_conn_init: "
 162                         "unable to create entry 'cn=Current,%s'\n%s%s",
 163                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
 164                         "", "" );
 165 #endif
 166                 return( -1 );
 167         }
 168
 169         bv.bv_val = "0";
 170         bv.bv_len = 1;
 171         attr_merge_one( e, mi->ad_monitorCounter, &bv, NULL );
 172
 173         mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
 174         e->e_private = ( void * )mp;
 175         mp->mp_next = e_tmp;
 176         mp->mp_children = NULL;
 177         mp->mp_info = &monitor_subsys[SLAPD_MONITOR_CONN];
 178         mp->mp_flags = monitor_subsys[SLAPD_MONITOR_CONN].mss_flags \
 179                 | MONITOR_F_SUB | MONITOR_F_PERSISTENT;
 180         mp->mp_flags &= ~MONITOR_F_VOLATILE_CH;
 181
 182         if ( monitor_cache_add( mi, e ) ) {
 183 #ifdef NEW_LOGGING
 184                 LDAP_LOG( OPERATION, CRIT,
 185                         "monitor_subsys_conn_init: "
 186                         "unable to add entry 'cn=Current,%s'\n",
 187                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val, 0, 0 );
 188 #else
 189                 Debug( LDAP_DEBUG_ANY,
 190                         "monitor_subsys_conn_init: "
 191                         "unable to add entry 'cn=Current,%s'\n%s%s",
 192                         monitor_subsys[SLAPD_MONITOR_CONN].mss_ndn.bv_val,
 193                         "", "" );
 194 #endif
 195                 return( -1 );
 196         }
 197
 198         e_tmp = e;
 199
 200         mp = ( struct monitorentrypriv * )e_conn->e_private;
 201         mp->mp_children = e_tmp;
 202
 203         monitor_cache_release( mi, e_conn );
 204
 205         return( 0 );
 206 }
 207
 208 int
 209 monitor_subsys_conn_update(
 210         Operation               *op,
 211         Entry                   *e
 212 )
 213 {
 214         struct monitorinfo *mi = (struct monitorinfo *)op->o_bd->be_private;
 215         long            n = -1;
 216
 217         assert( mi );
 218         assert( e );
 219
 220         if ( strncasecmp( e->e_ndn, "cn=total",
 221                                 sizeof("cn=total")-1 ) == 0 ) {
 222                 n = connections_nextid();
 223
 224         } else if ( strncasecmp( e->e_ndn, "cn=current",
 225                                 sizeof("cn=current")-1 ) == 0 ) {
 226                 Connection      *c;
 227                 int             connindex;
 228
 229                 for ( n = 0, c = connection_first( &connindex );
 230                                 c != NULL;
 231                                 n++, c = connection_next( c, &connindex ) ) {
 232                         /* No Op */ ;
 233                 }
 234                 connection_done(c);
 235         }
 236
 237         if ( n != -1 ) {
 238                 Attribute       *a;
 239                 char            buf[] = "+9223372036854775807L";
 240
 241                 a = attr_find( e->e_attrs, mi->ad_monitorCounter );
 242                 if ( a == NULL ) {
 243                         return( -1 );
 244                 }
 245
 246                 snprintf( buf, sizeof( buf ), "%ld", n );
 247                 free( a->a_vals[ 0 ].bv_val );
 248                 ber_str2bv( buf, 0, 1, a->a_vals );
 249         }
 250
 251         return( 0 );
 252 }
 253
 254 static int
 255 conn_create(
 256         struct monitorinfo      *mi,
 257         Connection              *c,
 258         Entry                   **ep
 259 )
 260 {
 261         struct monitorentrypriv *mp;
 262         struct tm               *ltm;
 263         char                    buf[ BACKMONITOR_BUFSIZE ];
 264         char                    buf2[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 265         char                    buf3[ LDAP_LUTIL_GENTIME_BUFSIZE ];
 266
 267         struct berval           bv;
 268
 269         Entry                   *e;
 270
 271         assert( c != NULL );
 272         assert( ep != NULL );
 273
 274         snprintf( buf, sizeof( buf ),
 275                 "dn: cn=" CONN_CN_PREFIX " %ld,%s\n"
 276                 "objectClass: %s\n"
 277                 "structuralObjectClass: %s\n"
 278                 "cn: " CONN_CN_PREFIX " %ld\n",
 279                 c->c_connid, monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val,
 280                 mi->oc_monitorConnection->soc_cname.bv_val,
 281                 mi->oc_monitorConnection->soc_cname.bv_val,
 282                 c->c_connid );
 283         e = str2entry( buf );
 284
 285         if ( e == NULL) {
 286 #ifdef NEW_LOGGING
 287                 LDAP_LOG( OPERATION, CRIT,
 288                         "monitor_subsys_conn_create: "
 289                         "unable to create entry "
 290                         "'cn=" CONN_CN_PREFIX " %ld,%s' entry\n",
 291                         c->c_connid, monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val, 0 );
 292 #else
 293                 Debug( LDAP_DEBUG_ANY,
 294                         "monitor_subsys_conn_create: "
 295                         "unable to create entry "
 296                         "'cn=" CONN_CN_PREFIX " %ld,%s' entry\n",
 297                         c->c_connid,
 298                         monitor_subsys[SLAPD_MONITOR_CONN].mss_dn.bv_val, 0 );
 299 #endif
 300                 return( -1 );
 301         }
 302
 303         ldap_pvt_thread_mutex_lock( &gmtime_mutex );
 304
 305         ltm = gmtime( &c->c_starttime );
 306         lutil_gentime( buf2, sizeof( buf2 ), ltm );
 307
 308         ltm = gmtime( &c->c_activitytime );
 309         lutil_gentime( buf3, sizeof( buf3 ), ltm );
 310
 311         ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
 312
 313         /* monitored info */
 314         sprintf( buf,
 315                 "%ld : %ld "
 316                 ": %ld/%ld/%ld/%ld "
 317                 ": %ld/%ld/%ld "
 318                 ": %s%s%s%s%s%s "
 319                 ": %s : %s : %s "
 320                 ": %s : %s : %s : %s",
 321                 c->c_connid,
 322                 (long) c->c_protocol,
 323                 c->c_n_ops_received, c->c_n_ops_executing,
 324                 c->c_n_ops_pending, c->c_n_ops_completed,
 325
 326                 /* add low-level counters here */
 327                 c->c_n_get, c->c_n_read, c->c_n_write,
 328
 329                 c->c_currentber ? "r" : "",
 330                 c->c_writewaiter ? "w" : "",
 331                 LDAP_STAILQ_EMPTY( &c->c_ops ) ? "" : "x",
 332                 LDAP_STAILQ_EMPTY( &c->c_pending_ops ) ? "" : "p",
 333                 connection_state2str( c->c_conn_state ),
 334                 c->c_sasl_bind_in_progress ? "S" : "",
 335
 336                 c->c_dn.bv_len ? c->c_dn.bv_val : SLAPD_ANONYMOUS,
 337
 338                 c->c_listener_url.bv_val,
 339                 c->c_peer_domain.bv_val,
 340                 c->c_peer_name.bv_val,
 341                 c->c_sock_name.bv_val,
 342
 343                 buf2,
 344                 buf3
 345                 );
 346
 347         bv.bv_val = buf;
 348         bv.bv_len = strlen( buf );
 349         attr_merge_one( e, mi->ad_monitoredInfo, &bv, NULL );
 350
 351         /* connection number */
 352         snprintf( buf, sizeof( buf ), "%ld", c->c_connid );
 353         bv.bv_val = buf;
 354         bv.bv_len = strlen( buf );
 355         attr_merge_one( e, mi->ad_monitorConnectionNumber, &bv, NULL );
 356
 357         /* authz DN */
 358         attr_merge_one( e, mi->ad_monitorConnectionAuthzDN,
 359                         &c->c_dn, &c->c_ndn );
 360
 361         /* local address */
 362         attr_merge_one( e, mi->ad_monitorConnectionLocalAddress,
 363                         &c->c_sock_name, NULL );
 364
 365         /* peer address */
 366         attr_merge_one( e, mi->ad_monitorConnectionPeerAddress,
 367                         &c->c_peer_name, NULL );
 368
 369         mp = ( struct monitorentrypriv * )ch_calloc( sizeof( struct monitorentrypriv ), 1 );
 370         e->e_private = ( void * )mp;
 371         mp->mp_info = &monitor_subsys[ SLAPD_MONITOR_CONN ];
 372         mp->mp_children = NULL;
 373         mp->mp_flags = MONITOR_F_SUB | MONITOR_F_VOLATILE;
 374
 375         *ep = e;
 376
 377         return( 0 );
 378 }
 379
 380 int
 381 monitor_subsys_conn_create(
 382         Operation               *op,
 383         struct berval           *ndn,
 384         Entry                   *e_parent,
 385         Entry                   **ep
 386 )
 387 {
 388         struct monitorinfo *mi = (struct monitorinfo *)op->o_bd->be_private;
 389         Connection              *c;
 390         int                     connindex;
 391         struct monitorentrypriv *mp;
 392
 393         assert( mi != NULL );
 394         assert( e_parent != NULL );
 395         assert( ep != NULL );
 396
 397         *ep = NULL;
 398
 399         if ( ndn == NULL ) {
 400                 Entry *e, *e_tmp = NULL;
 401
 402                 /* create all the children of e_parent */
 403                 for ( c = connection_first( &connindex );
 404                                 c != NULL;
 405                                 c = connection_next( c, &connindex )) {
 406                         if ( conn_create( mi, c, &e ) || e == NULL ) {
 407                                 connection_done(c);
 408                                 for ( ; e_tmp != NULL; ) {
 409                                         mp = ( struct monitorentrypriv * )e_tmp->e_private;
 410                                         e = mp->mp_next;
 411
 412                                         ch_free( mp );
 413                                         e_tmp->e_private = NULL;
 414                                         entry_free( e_tmp );
 415
 416                                         e_tmp = e;
 417                                 }
 418                                 return( -1 );
 419                         }
 420                         mp = ( struct monitorentrypriv * )e->e_private;
 421                         mp->mp_next = e_tmp;
 422                         e_tmp = e;
 423                 }
 424                 connection_done(c);
 425
 426                 *ep = e;
 427
 428         } else {
 429                 LDAPRDN         values = NULL;
 430                 const char      *text = NULL;
 431                 unsigned long   connid;
 432
 433                 /* create exactly the required entry */
 434
 435                 if ( ldap_bv2rdn( ndn, &values, (char **)&text,
 436                         LDAP_DN_FORMAT_LDAP ) )
 437                 {
 438                         return( -1 );
 439                 }
 440
 441                 assert( values );
 442                 assert( values[ 0 ] );
 443
 444                 connid = atol( values[ 0 ]->la_value.bv_val
 445                                 + sizeof( CONN_CN_PREFIX ) );
 446
 447                 ldap_rdnfree( values );
 448
 449                 for ( c = connection_first( &connindex );
 450                                 c != NULL;
 451                                 c = connection_next( c, &connindex )) {
 452                         if ( c->c_connid == connid ) {
 453                                 if ( conn_create( mi, c, ep ) || *ep == NULL ) {
 454                                         connection_done( c );
 455                                         return( -1 );
 456                                 }
 457
 458                                 break;
 459                         }
 460                 }
 461
 462                 connection_done(c);
 463
 464         }
 465
 466         return( 0 );
 467 }
 468