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                 ldap_pvt_thread_pool_init( &connection_pool,
 117                                 connection_pool_max, 0);
 118
 119                 ldap_pvt_thread_mutex_init( &entry2str_mutex );
 120                 ldap_pvt_thread_mutex_init( &replog_mutex );
 121
 122                 ldap_pvt_thread_mutex_init( &slap_counters.sc_sent_mutex );
 123                 ldap_pvt_thread_mutex_init( &slap_counters.sc_ops_mutex );
 124 #ifdef HAVE_GMP
 125                 mpz_init( slap_counters.sc_bytes );
 126                 mpz_init( slap_counters.sc_pdu );
 127                 mpz_init( slap_counters.sc_entries );
 128                 mpz_init( slap_counters.sc_refs );
 129
 130                 mpz_init( slap_counters.sc_ops_completed );
 131                 mpz_init( slap_counters.sc_ops_initiated );
 132
 133 #ifdef SLAPD_MONITOR
 134                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 135                         mpz_init( slap_counters.sc_ops_initiated_[ i ] );
 136                         mpz_init( slap_counters.sc_ops_completed_[ i ] );
 137                 }
 138 #endif /* SLAPD_MONITOR */
 139 #else /* ! HAVE_GMP */
 140                 slap_counters.sc_bytes = 0;
 141                 slap_counters.sc_pdu = 0;
 142                 slap_counters.sc_entries = 0;
 143                 slap_counters.sc_refs = 0;
 144
 145                 slap_counters.sc_ops_completed = 0;
 146                 slap_counters.sc_ops_initiated = 0;
 147 #ifdef SLAPD_MONITOR
 148                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 149                         slap_counters.sc_ops_initiated_[ i ] = 0;
 150                         slap_counters.sc_ops_completed_[ i ] = 0;
 151                 }
 152 #endif /* SLAPD_MONITOR */
 153 #endif /* ! HAVE_GMP */
 154
 155 #ifndef HAVE_GMTIME_R
 156                 ldap_pvt_thread_mutex_init( &gmtime_mutex );
 157 #endif
 158 #if defined( SLAPD_CRYPT ) || defined( SLAPD_SPASSWD )
 159                 ldap_pvt_thread_mutex_init( &passwd_mutex );
 160 #endif
 161
 162                 rc = slap_sasl_init();
 163
 164                 if( rc == 0 ) {
 165                         rc = backend_init( );
 166                 }
 167
 168                 break;
 169
 170         default:
 171                 Debug( LDAP_DEBUG_ANY,
 172                         "%s init: undefined mode (%d).\n", name, mode, 0 );
 173
 174                 rc = 1;
 175                 break;
 176         }
 177
 178         return rc;
 179 }
 180
 181 int slap_startup( Backend *be )
 182 {
 183         int rc;
 184
 185         Debug( LDAP_DEBUG_TRACE,
 186                 "%s startup: initiated.\n",
 187                 slap_name, 0, 0 );
 188
 189
 190         rc = backend_startup( be );
 191
 192 #ifdef LDAP_SLAPI
 193         if( rc == 0 ) {
 194                 Slapi_PBlock *pb = slapi_pblock_new();
 195
 196                 if ( slapi_int_call_plugins( NULL, SLAPI_PLUGIN_START_FN, pb ) < 0 ) {
 197                         rc = -1;
 198                 }
 199                 slapi_pblock_destroy( pb );
 200         }
 201 #endif /* LDAP_SLAPI */
 202
 203         return rc;
 204 }
 205
 206 int slap_shutdown( Backend *be )
 207 {
 208         int rc;
 209 #ifdef LDAP_SLAPI
 210         Slapi_PBlock *pb;
 211 #endif
 212
 213         Debug( LDAP_DEBUG_TRACE,
 214                 "%s shutdown: initiated\n",
 215                 slap_name, 0, 0 );
 216
 217         /* let backends do whatever cleanup they need to do */
 218         rc = backend_shutdown( be );
 219
 220 #ifdef LDAP_SLAPI
 221         pb = slapi_pblock_new();
 222         (void) slapi_int_call_plugins( NULL, SLAPI_PLUGIN_CLOSE_FN, pb );
 223         slapi_pblock_destroy( pb );
 224 #endif /* LDAP_SLAPI */
 225
 226         return rc;
 227 }
 228
 229 int slap_destroy(void)
 230 {
 231         int rc;
 232         int i;
 233
 234         Debug( LDAP_DEBUG_TRACE,
 235                 "%s destroy: freeing system resources.\n",
 236                 slap_name, 0, 0 );
 237
 238         if ( default_referral ) {
 239                 ber_bvarray_free( default_referral );
 240         }
 241
 242         rc = backend_destroy();
 243
 244         slap_sasl_destroy();
 245
 246         entry_destroy();
 247
 248         switch ( slapMode & SLAP_MODE ) {
 249         case SLAP_SERVER_MODE:
 250         case SLAP_TOOL_MODE:
 251
 252                 ldap_pvt_thread_mutex_destroy( &slap_counters.sc_sent_mutex );
 253                 ldap_pvt_thread_mutex_destroy( &slap_counters.sc_ops_mutex );
 254 #ifdef HAVE_GMP
 255                 mpz_clear( slap_counters.sc_bytes );
 256                 mpz_clear( slap_counters.sc_pdu );
 257                 mpz_clear( slap_counters.sc_entries );
 258                 mpz_clear( slap_counters.sc_refs );
 259                 mpz_clear( slap_counters.sc_ops_completed );
 260                 mpz_clear( slap_counters.sc_ops_initiated );
 261
 262 #ifdef SLAPD_MONITOR
 263                 for ( i = 0; i < SLAP_OP_LAST; i++ ) {
 264                         mpz_clear( slap_counters.sc_ops_initiated_[ i ] );
 265                         mpz_clear( slap_counters.sc_ops_completed_[ i ] );
 266                 }
 267 #endif /* SLAPD_MONITOR */
 268 #endif /* HAVE_GMP */
 269                 break;
 270
 271         default:
 272                 Debug( LDAP_DEBUG_ANY,
 273                         "slap_destroy(): undefined mode (%d).\n", slapMode, 0, 0 );
 274
 275                 rc = 1;
 276                 break;
 277
 278         }
 279
 280         ldap_pvt_thread_destroy();
 281
 282         /* should destory the above mutex */
 283         return rc;
 284 }