external/bsd/openldap/dist/servers/slapd/init.c

   1 /* init.c - initialize various things */
   2 /* $OpenLDAP: pkg/ldap/servers/slapd/init.c,v 1.97.2.9 2008/02/12 00:46:46 quanah Exp $ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2008 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
  17  * All rights reserved.
  18  *
  19  * Redistribution and use in source and binary forms are permitted
  20  * provided that this notice is preserved and that due credit is given
  21  * to the University of Michigan at Ann Arbor. The name of the University
  22  * may not be used to endorse or promote products derived from this
  23  * software without specific prior written permission. This software
  24  * is provided ``as is'' without express or implied warranty.
  25  */
  26
  27 #include "portable.h"
  28
  29 #include <stdio.h>
  30
  31 #include <ac/socket.h>
  32 #include <ac/string.h>
  33 #include <ac/time.h>
  34
  35 #include "slap.h"
  36 #include "lber_pvt.h"
  37
  38 #include "ldap_rq.h"
  39
  40 /*
  41  * read-only global variables or variables only written by the listener
  42  * thread (after they are initialized) - no need to protect them with a mutex.
  43  */
  44 int             slap_debug = 0;
  45
  46 #ifdef LDAP_DEBUG
  47 int             ldap_syslog = LDAP_DEBUG_STATS;
  48 #else
  49 int             ldap_syslog;
  50 #endif
  51
  52 #ifdef LOG_DEBUG
  53 int             ldap_syslog_level = LOG_DEBUG;
  54 #endif
  55
  56 BerVarray default_referral = NULL;
  57
  58 struct berval AllUser = BER_BVC( LDAP_ALL_USER_ATTRIBUTES );
  59 struct berval AllOper = BER_BVC( LDAP_ALL_OPERATIONAL_ATTRIBUTES );
  60 struct berval NoAttrs = BER_BVC( LDAP_NO_ATTRS );
  61
  62 /*
  63  * global variables that need mutex protection
  64  */
  65 ldap_pvt_thread_pool_t  connection_pool;
  66 int                     connection_pool_max = SLAP_MAX_WORKER_THREADS;
  67 int             slap_tool_thread_max = 1;
  68 ldap_pvt_thread_mutex_t gmtime_mutex;
  69
  70 slap_counters_t                 slap_counters, *slap_counters_list;
  71
  72 static const char* slap_name = NULL;
  73 int slapMode = SLAP_UNDEFINED_MODE;
  74
  75 int
  76 slap_init( int mode, const char *name )
  77 {
  78         int rc;
  79
  80         assert( mode );
  81
  82         if ( slapMode != SLAP_UNDEFINED_MODE ) {
  83                 /* Make sure we write something to stderr */
  84                 slap_debug |= LDAP_DEBUG_NONE;
  85                 Debug( LDAP_DEBUG_ANY,
  86                  "%s init: init called twice (old=%d, new=%d)\n",
  87                  name, slapMode, mode );
  88
  89                 return 1;
  90         }
  91
  92         slapMode = mode;
  93
  94         slap_op_init();
  95
  96 #ifdef SLAPD_MODULES
  97         if ( module_init() != 0 ) {
  98                 slap_debug |= LDAP_DEBUG_NONE;
  99                 Debug( LDAP_DEBUG_ANY,
 100                     "%s: module_init failed\n",
 101                         name, 0, 0 );
 102                 return 1;
 103         }
 104 #endif
 105
 106         if ( slap_schema_init( ) != 0 ) {
 107                 slap_debug |= LDAP_DEBUG_NONE;
 108                 Debug( LDAP_DEBUG_ANY,
 109                     "%s: slap_schema_init failed\n",
 110                     name, 0, 0 );
 111                 return 1;
 112         }
 113
 114         if ( filter_init() != 0 ) {
 115                 slap_debug |= LDAP_DEBUG_NONE;
 116                 Debug( LDAP_DEBUG_ANY,
 117                     "%s: filter_init failed\n",
 118                     name, 0, 0 );
 119                 return 1;
 120         }
 121
 122         if ( entry_init() != 0 ) {
 123                 slap_debug |= LDAP_DEBUG_NONE;
 124                 Debug( LDAP_DEBUG_ANY,
 125                     "%s: entry_init failed\n",
 126                     name, 0, 0 );
 127                 return 1;
 128         }
 129
 130         switch ( slapMode & SLAP_MODE ) {
 131         case SLAP_SERVER_MODE:
 132                 root_dse_init();
 133
 134                 /* FALLTHRU */
 135         case SLAP_TOOL_MODE:
 136                 Debug( LDAP_DEBUG_TRACE,
 137                         "%s init: initiated %s.\n",     name,
 138                         (mode & SLAP_MODE) == SLAP_TOOL_MODE ? "tool" : "server",
 139                         0 );
 140
 141                 slap_name = name;
 142
 143                 ldap_pvt_thread_pool_init( &connection_pool,
 144                                 connection_pool_max, 0);
 145
 146                 slap_counters_init( &slap_counters );
 147
 148                 ldap_pvt_thread_mutex_init( &slapd_rq.rq_mutex );
 149                 LDAP_STAILQ_INIT( &slapd_rq.task_list );
 150                 LDAP_STAILQ_INIT( &slapd_rq.run_list );
 151
 152                 ldap_pvt_thread_mutex_init( &gmtime_mutex );
 153                 slap_passwd_init();
 154
 155                 rc = slap_sasl_init();
 156
 157                 if( rc == 0 ) {
 158                         rc = backend_init( );
 159                 }
 160                 if ( rc )
 161                         return rc;
 162
 163                 break;
 164
 165         default:
 166                 slap_debug |= LDAP_DEBUG_NONE;
 167                 Debug( LDAP_DEBUG_ANY,
 168                         "%s init: undefined mode (%d).\n", name, mode, 0 );
 169
 170                 rc = 1;
 171                 break;
 172         }
 173
 174         if ( slap_controls_init( ) != 0 ) {
 175                 slap_debug |= LDAP_DEBUG_NONE;
 176                 Debug( LDAP_DEBUG_ANY,
 177                     "%s: slap_controls_init failed\n",
 178                     name, 0, 0 );
 179                 return 1;
 180         }
 181
 182         if ( frontend_init() ) {
 183                 slap_debug |= LDAP_DEBUG_NONE;
 184                 Debug( LDAP_DEBUG_ANY,
 185                     "%s: frontend_init failed\n",
 186                     name, 0, 0 );
 187                 return 1;
 188         }
 189
 190         if ( overlay_init() ) {
 191                 slap_debug |= LDAP_DEBUG_NONE;
 192                 Debug( LDAP_DEBUG_ANY,
 193                     "%s: overlay_init failed\n",
 194                     name, 0, 0 );
 195                 return 1;
 196         }
 197
 198         if ( glue_sub_init() ) {
 199                 slap_debug |= LDAP_DEBUG_NONE;
 200                 Debug( LDAP_DEBUG_ANY,
 201                     "%s: glue/subordinate init failed\n",
 202                     name, 0, 0 );
 203
 204                 return 1;
 205         }
 206
 207         if ( acl_init() ) {
 208                 slap_debug |= LDAP_DEBUG_NONE;
 209                 Debug( LDAP_DEBUG_ANY,
 210                     "%s: acl_init failed\n",
 211                     name, 0, 0 );
 212                 return 1;
 213         }
 214
 215         return rc;
 216 }
 217
 218 int slap_startup( Backend *be )
 219 {
 220         Debug( LDAP_DEBUG_TRACE,
 221                 "%s startup: initiated.\n",
 222                 slap_name, 0, 0 );
 223
 224
 225         return backend_startup( be );
 226 }
 227
 228 int slap_shutdown( Backend *be )
 229 {
 230         Debug( LDAP_DEBUG_TRACE,
 231                 "%s shutdown: initiated\n",
 232                 slap_name, 0, 0 );
 233
 234         /* let backends do whatever cleanup they need to do */
 235         return backend_shutdown( be );
 236 }
 237
 238 int slap_destroy(void)
 239 {
 240         int rc;
 241
 242         Debug( LDAP_DEBUG_TRACE,
 243                 "%s destroy: freeing system resources.\n",
 244                 slap_name, 0, 0 );
 245
 246         if ( default_referral ) {
 247                 ber_bvarray_free( default_referral );
 248         }
 249
 250         /* clear out any thread-keys for the main thread */
 251         ldap_pvt_thread_pool_context_reset( ldap_pvt_thread_pool_context());
 252
 253         rc = backend_destroy();
 254
 255         slap_sasl_destroy();
 256
 257         /* rootdse destroy goes before entry_destroy()
 258          * because it may use entry_free() */
 259         root_dse_destroy();
 260         entry_destroy();
 261
 262         switch ( slapMode & SLAP_MODE ) {
 263         case SLAP_SERVER_MODE:
 264         case SLAP_TOOL_MODE:
 265                 slap_counters_destroy( &slap_counters );
 266                 break;
 267
 268         default:
 269                 Debug( LDAP_DEBUG_ANY,
 270                         "slap_destroy(): undefined mode (%d).\n", slapMode, 0, 0 );
 271
 272                 rc = 1;
 273                 break;
 274
 275         }
 276
 277         slap_op_destroy();
 278
 279         ldap_pvt_thread_destroy();
 280
 281         /* should destroy the above mutex */
 282         return rc;
 283 }
 284
 285 void slap_counters_init( slap_counters_t *sc )
 286 {
 287         int i;
 288
 289         ldap_pvt_thread_mutex_init( &sc->sc_mutex );
 290         ldap_pvt_mp_init( sc->sc_bytes );
 291         ldap_pvt_mp_init( sc->sc_pdu );
 292         ldap_pvt_mp_init( sc->sc_entries );
 293         ldap_pvt_mp_init( sc->sc_refs );
 294
 295         ldap_pvt_mp_init( sc->sc_ops_initiated );
 296         ldap_pvt_mp_init( sc->sc_ops_completed );
 297
 298 #ifdef SLAPD_MONITOR
 299         for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 300                 ldap_pvt_mp_init( sc->sc_ops_initiated_[ i ] );
 301                 ldap_pvt_mp_init( sc->sc_ops_completed_[ i ] );
 302         }
 303 #endif /* SLAPD_MONITOR */
 304 }
 305
 306 void slap_counters_destroy( slap_counters_t *sc )
 307 {
 308         int i;
 309
 310         ldap_pvt_thread_mutex_destroy( &sc->sc_mutex );
 311         ldap_pvt_mp_clear( sc->sc_bytes );
 312         ldap_pvt_mp_clear( sc->sc_pdu );
 313         ldap_pvt_mp_clear( sc->sc_entries );
 314         ldap_pvt_mp_clear( sc->sc_refs );
 315
 316         ldap_pvt_mp_clear( sc->sc_ops_initiated );
 317         ldap_pvt_mp_clear( sc->sc_ops_completed );
 318
 319 #ifdef SLAPD_MONITOR
 320         for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 321                 ldap_pvt_mp_clear( sc->sc_ops_initiated_[ i ] );
 322                 ldap_pvt_mp_clear( sc->sc_ops_completed_[ i ] );
 323         }
 324 #endif /* SLAPD_MONITOR */
 325 }
 326