git.sur5r.net Git - openldap/blob - servers/slapd/init.c

   1 /* init.c - initialize various things */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1998-2004 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 #ifdef LDAP_SLAPI
  38 #include "slapi/slapi.h"
  39 #endif
  40
  41 /*
  42  * read-only global variables or variables only written by the listener
  43  * thread (after they are initialized) - no need to protect them with a mutex.
  44  */
  45 int             slap_debug = 0;
  46
  47 #ifdef LDAP_DEBUG
  48 int             ldap_syslog = LDAP_DEBUG_STATS;
  49 #else
  50 int             ldap_syslog;
  51 #endif
  52
  53 #ifdef LOG_DEBUG
  54 int             ldap_syslog_level = LOG_DEBUG;
  55 #endif
  56
  57 BerVarray default_referral = NULL;
  58
  59 struct berval AllUser = BER_BVC( LDAP_ALL_USER_ATTRIBUTES );
  60 struct berval AllOper = BER_BVC( LDAP_ALL_OPERATIONAL_ATTRIBUTES );
  61 struct berval NoAttrs = BER_BVC( LDAP_NO_ATTRS );
  62
  63 /*
  64  * global variables that need mutex protection
  65  */
  66 ldap_pvt_thread_pool_t  connection_pool;
  67 int                     connection_pool_max = SLAP_MAX_WORKER_THREADS;
  68 #ifndef HAVE_GMTIME_R
  69 ldap_pvt_thread_mutex_t gmtime_mutex;
  70 #endif
  71 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
  72 ldap_pvt_thread_mutex_t passwd_mutex;
  73 #endif
  74
  75 slap_counters_t                 slap_counters;
  76
  77 /*
  78  * these mutexes must be used when calling the entry2str()
  79  * routine since it returns a pointer to static data.
  80  */
  81 ldap_pvt_thread_mutex_t entry2str_mutex;
  82 ldap_pvt_thread_mutex_t replog_mutex;
  83
  84 static const char* slap_name = NULL;
  85 int slapMode = SLAP_UNDEFINED_MODE;
  86
  87 int
  88 slap_init( int mode, const char *name )
  89 {
  90         int rc;
  91         int i;
  92
  93         assert( mode );
  94
  95         if ( slapMode != SLAP_UNDEFINED_MODE ) {
  96                 Debug( LDAP_DEBUG_ANY,
  97                  "%s init: init called twice (old=%d, new=%d)\n",
  98                  name, slapMode, mode );
  99
 100                 return 1;
 101         }
 102
 103         slapMode = mode;
 104
 105         switch ( slapMode & SLAP_MODE ) {
 106         case SLAP_SERVER_MODE:
 107         case SLAP_TOOL_MODE:
 108                 Debug( LDAP_DEBUG_TRACE,
 109                         "%s init: initiated %s.\n",     name,
 110                         (mode & SLAP_MODE) == SLAP_TOOL_MODE ? "tool" : "server",
 111                         0 );
 112
 113
 114                 slap_name = name;
 115
 116                 (void) ldap_pvt_thread_initialize();
 117
 118                 ldap_pvt_thread_pool_init( &connection_pool,
 119                                 connection_pool_max, 0);
 120
 121                 ldap_pvt_thread_mutex_init( &entry2str_mutex );
 122                 ldap_pvt_thread_mutex_init( &replog_mutex );
 123
 124                 ldap_pvt_thread_mutex_init( &slap_counters.sc_sent_mutex );
 125                 ldap_pvt_thread_mutex_init( &slap_counters.sc_ops_mutex );
 126 #ifdef HAVE_GMP
 127                 mpz_init( slap_counters.sc_bytes );
 128                 mpz_init( slap_counters.sc_pdu );
 129                 mpz_init( slap_counters.sc_entries );
 130                 mpz_init( slap_counters.sc_refs );
 131
 132                 mpz_init( slap_counters.sc_ops_completed );
 133                 mpz_init( slap_counters.sc_ops_initiated );
 134
 135 #ifdef SLAPD_MONITOR
 136                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 137                         mpz_init( slap_counters.sc_ops_initiated_[ i ] );
 138                         mpz_init( slap_counters.sc_ops_completed_[ i ] );
 139                 }
 140 #endif /* SLAPD_MONITOR */
 141 #else /* ! HAVE_GMP */
 142                 slap_counters.sc_bytes = 0;
 143                 slap_counters.sc_pdu = 0;
 144                 slap_counters.sc_entries = 0;
 145                 slap_counters.sc_refs = 0;
 146
 147                 slap_counters.sc_ops_completed = 0;
 148                 slap_counters.sc_ops_initiated = 0;
 149 #ifdef SLAPD_MONITOR
 150                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 151                         slap_counters.sc_ops_initiated_[ i ] = 0;
 152                         slap_counters.sc_ops_completed_[ i ] = 0;
 153                 }
 154 #endif /* SLAPD_MONITOR */
 155 #endif /* ! HAVE_GMP */
 156
 157 #ifndef HAVE_GMTIME_R
 158                 ldap_pvt_thread_mutex_init( &gmtime_mutex );
 159 #endif
 160 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
 161                 ldap_pvt_thread_mutex_init( &passwd_mutex );
 162 #endif
 163
 164                 rc = slap_sasl_init();
 165
 166                 if( rc == 0 ) {
 167                         rc = backend_init( );
 168                 }
 169
 170                 break;
 171
 172         default:
 173                 Debug( LDAP_DEBUG_ANY,
 174                         "%s init: undefined mode (%d).\n", name, mode, 0 );
 175
 176                 rc = 1;
 177                 break;
 178         }
 179
 180         return rc;
 181 }
 182
 183 int slap_startup( Backend *be )
 184 {
 185         int rc;
 186
 187         Debug( LDAP_DEBUG_TRACE,
 188                 "%s startup: initiated.\n",
 189                 slap_name, 0, 0 );
 190
 191
 192         rc = backend_startup( be );
 193
 194 #ifdef LDAP_SLAPI
 195         if( rc == 0 ) {
 196                 Slapi_PBlock *pb = slapi_pblock_new();
 197
 198                 if ( slapi_int_call_plugins( NULL, SLAPI_PLUGIN_START_FN, pb ) < 0 ) {
 199                         rc = -1;
 200                 }
 201                 slapi_pblock_destroy( pb );
 202         }
 203 #endif /* LDAP_SLAPI */
 204
 205         return rc;
 206 }
 207
 208 int slap_shutdown( Backend *be )
 209 {
 210         int rc;
 211 #ifdef LDAP_SLAPI
 212         Slapi_PBlock *pb;
 213 #endif
 214
 215         Debug( LDAP_DEBUG_TRACE,
 216                 "%s shutdown: initiated\n",
 217                 slap_name, 0, 0 );
 218
 219         /* let backends do whatever cleanup they need to do */
 220         rc = backend_shutdown( be );
 221
 222 #ifdef LDAP_SLAPI
 223         pb = slapi_pblock_new();
 224         (void) slapi_int_call_plugins( NULL, SLAPI_PLUGIN_CLOSE_FN, pb );
 225         slapi_pblock_destroy( pb );
 226 #endif /* LDAP_SLAPI */
 227
 228         return rc;
 229 }
 230
 231 int slap_destroy(void)
 232 {
 233         int rc;
 234         int i;
 235
 236         Debug( LDAP_DEBUG_TRACE,
 237                 "%s destroy: freeing system resources.\n",
 238                 slap_name, 0, 0 );
 239
 240         if ( default_referral ) {
 241                 ber_bvarray_free( default_referral );
 242         }
 243
 244         rc = backend_destroy();
 245
 246         slap_sasl_destroy();
 247
 248         entry_destroy();
 249
 250         switch ( slapMode & SLAP_MODE ) {
 251         case SLAP_SERVER_MODE:
 252         case SLAP_TOOL_MODE:
 253
 254                 ldap_pvt_thread_mutex_destroy( &slap_counters.sc_sent_mutex );
 255                 ldap_pvt_thread_mutex_destroy( &slap_counters.sc_ops_mutex );
 256 #ifdef HAVE_GMP
 257                 mpz_clear( slap_counters.sc_bytes );
 258                 mpz_clear( slap_counters.sc_pdu );
 259                 mpz_clear( slap_counters.sc_entries );
 260                 mpz_clear( slap_counters.sc_refs );
 261                 mpz_clear( slap_counters.sc_ops_completed );
 262                 mpz_clear( slap_counters.sc_ops_initiated );
 263
 264 #ifdef SLAPD_MONITOR
 265                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 266                         mpz_clear( slap_counters.sc_ops_initiated_[ i ] );
 267                         mpz_clear( slap_counters.sc_ops_completed_[ i ] );
 268                 }
 269 #endif /* SLAPD_MONITOR */
 270 #endif /* HAVE_GMP */
 271                 break;
 272
 273         default:
 274                 Debug( LDAP_DEBUG_ANY,
 275                         "slap_destroy(): undefined mode (%d).\n", slapMode, 0, 0 );
 276
 277                 rc = 1;
 278                 break;
 279
 280         }
 281
 282         ldap_pvt_thread_destroy();
 283
 284         /* should destory the above mutex */
 285         return rc;
 286 }