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

   1 /* init.c - initialize ldap backend */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 2003-2007 The OpenLDAP Foundation.
   6  * Portions Copyright 1999-2003 Howard Chu.
   7  * Portions Copyright 2000-2003 Pierangelo Masarati.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted only as authorized by the OpenLDAP
  12  * Public License.
  13  *
  14  * A copy of this license is available in the file LICENSE in the
  15  * top-level directory of the distribution or, alternatively, at
  16  * <http://www.OpenLDAP.org/license.html>.
  17  */
  18 /* ACKNOWLEDGEMENTS:
  19  * This work was initially developed by the Howard Chu for inclusion
  20  * in OpenLDAP Software and subsequently enhanced by Pierangelo
  21  * Masarati.
  22  */
  23
  24 #include "portable.h"
  25
  26 #include <stdio.h>
  27
  28 #include <ac/string.h>
  29 #include <ac/socket.h>
  30
  31 #include "slap.h"
  32 #include "back-ldap.h"
  33
  34 int
  35 ldap_back_open( BackendInfo     *bi )
  36 {
  37         bi->bi_controls = slap_known_controls;
  38         return 0;
  39 }
  40
  41 int
  42 ldap_back_initialize( BackendInfo *bi )
  43 {
  44         int             rc;
  45
  46         bi->bi_flags =
  47 #ifdef LDAP_DYNAMIC_OBJECTS
  48                 /* this is set because all the support a proxy has to provide
  49                  * is the capability to forward the refresh exop, and to
  50                  * pass thru entries that contain the dynamicObject class
  51                  * and the entryTtl attribute */
  52                 SLAP_BFLAG_DYNAMIC |
  53 #endif /* LDAP_DYNAMIC_OBJECTS */
  54                 0;
  55
  56         bi->bi_open = ldap_back_open;
  57         bi->bi_config = 0;
  58         bi->bi_close = 0;
  59         bi->bi_destroy = 0;
  60
  61         bi->bi_db_init = ldap_back_db_init;
  62         bi->bi_db_config = config_generic_wrapper;
  63         bi->bi_db_open = ldap_back_db_open;
  64         bi->bi_db_close = ldap_back_db_close;
  65         bi->bi_db_destroy = ldap_back_db_destroy;
  66
  67         bi->bi_op_bind = ldap_back_bind;
  68         bi->bi_op_unbind = 0;
  69         bi->bi_op_search = ldap_back_search;
  70         bi->bi_op_compare = ldap_back_compare;
  71         bi->bi_op_modify = ldap_back_modify;
  72         bi->bi_op_modrdn = ldap_back_modrdn;
  73         bi->bi_op_add = ldap_back_add;
  74         bi->bi_op_delete = ldap_back_delete;
  75         bi->bi_op_abandon = 0;
  76
  77         bi->bi_extended = ldap_back_extended;
  78
  79         bi->bi_chk_referrals = 0;
  80         bi->bi_entry_get_rw = ldap_back_entry_get;
  81
  82         bi->bi_connection_init = 0;
  83         bi->bi_connection_destroy = ldap_back_conn_destroy;
  84
  85         rc = chain_initialize();
  86         if ( rc ) {
  87                 return rc;
  88         }
  89
  90 #ifdef SLAP_DISTPROC
  91         rc = distproc_initialize();
  92         if ( rc ) {
  93                 return rc;
  94         }
  95 #endif
  96
  97         return ldap_back_init_cf( bi );
  98 }
  99
 100 int
 101 ldap_back_db_init( Backend *be )
 102 {
 103         ldapinfo_t      *li;
 104         int             rc;
 105         unsigned        i;
 106
 107         li = (ldapinfo_t *)ch_calloc( 1, sizeof( ldapinfo_t ) );
 108         if ( li == NULL ) {
 109                 return -1;
 110         }
 111
 112         li->li_rebind_f = ldap_back_default_rebind;
 113         li->li_urllist_f = ldap_back_default_urllist;
 114         li->li_urllist_p = li;
 115         ldap_pvt_thread_mutex_init( &li->li_uri_mutex );
 116
 117         BER_BVZERO( &li->li_acl_authcID );
 118         BER_BVZERO( &li->li_acl_authcDN );
 119         BER_BVZERO( &li->li_acl_passwd );
 120
 121         li->li_acl_authmethod = LDAP_AUTH_NONE;
 122         BER_BVZERO( &li->li_acl_sasl_mech );
 123         li->li_acl.sb_tls = SB_TLS_DEFAULT;
 124
 125         li->li_idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
 126
 127         BER_BVZERO( &li->li_idassert_authcID );
 128         BER_BVZERO( &li->li_idassert_authcDN );
 129         BER_BVZERO( &li->li_idassert_passwd );
 130
 131         BER_BVZERO( &li->li_idassert_authzID );
 132
 133         li->li_idassert_authmethod = LDAP_AUTH_NONE;
 134         BER_BVZERO( &li->li_idassert_sasl_mech );
 135         li->li_idassert_tls = SB_TLS_DEFAULT;
 136
 137         /* by default, use proxyAuthz control on each operation */
 138         li->li_idassert_flags = LDAP_BACK_AUTH_PRESCRIPTIVE;
 139
 140         li->li_idassert_authz = NULL;
 141
 142         /* initialize flags */
 143         li->li_flags = LDAP_BACK_F_CHASE_REFERRALS;
 144
 145         /* initialize version */
 146         li->li_version = LDAP_VERSION3;
 147
 148         ldap_pvt_thread_mutex_init( &li->li_conninfo.lai_mutex );
 149
 150         for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
 151                 li->li_conn_priv[ i ].lic_num = 0;
 152                 LDAP_TAILQ_INIT( &li->li_conn_priv[ i ].lic_priv );
 153         }
 154         li->li_conn_priv_max = LDAP_BACK_CONN_PRIV_DEFAULT;
 155
 156         be->be_private = li;
 157         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_NOLASTMOD;
 158
 159         be->be_cf_ocs = be->bd_info->bi_cf_ocs;
 160
 161         rc = ldap_back_monitor_db_init( be );
 162         if ( rc != 0 ) {
 163                 /* ignore, by now */
 164                 rc = 0;
 165         }
 166
 167         return rc;
 168 }
 169
 170 int
 171 ldap_back_db_open( BackendDB *be )
 172 {
 173         ldapinfo_t      *li = (ldapinfo_t *)be->be_private;
 174
 175         slap_bindconf   sb = { BER_BVNULL };
 176         int             rc = 0;
 177
 178         Debug( LDAP_DEBUG_TRACE,
 179                 "ldap_back_db_open: URI=%s\n",
 180                 li->li_uri != NULL ? li->li_uri : "", 0, 0 );
 181
 182         /* by default, use proxyAuthz control on each operation */
 183         switch ( li->li_idassert_mode ) {
 184         case LDAP_BACK_IDASSERT_LEGACY:
 185         case LDAP_BACK_IDASSERT_SELF:
 186                 /* however, since admin connections are pooled and shared,
 187                  * only static authzIDs can be native */
 188                 li->li_idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 189                 break;
 190
 191         default:
 192                 break;
 193         }
 194
 195         ber_str2bv( li->li_uri, 0, 0, &sb.sb_uri );
 196         sb.sb_version = li->li_version;
 197         sb.sb_method = LDAP_AUTH_SIMPLE;
 198         BER_BVSTR( &sb.sb_binddn, "" );
 199
 200         if ( LDAP_BACK_T_F_DISCOVER( li ) && !LDAP_BACK_T_F( li ) ) {
 201                 rc = slap_discover_feature( &sb,
 202                                 slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
 203                                 LDAP_FEATURE_ABSOLUTE_FILTERS );
 204                 if ( rc == LDAP_COMPARE_TRUE ) {
 205                         li->li_flags |= LDAP_BACK_F_T_F;
 206                 }
 207         }
 208
 209         if ( LDAP_BACK_CANCEL_DISCOVER( li ) && !LDAP_BACK_CANCEL( li ) ) {
 210                 rc = slap_discover_feature( &sb,
 211                                 slap_schema.si_ad_supportedExtension->ad_cname.bv_val,
 212                                 LDAP_EXOP_CANCEL );
 213                 if ( rc == LDAP_COMPARE_TRUE ) {
 214                         li->li_flags |= LDAP_BACK_F_CANCEL_EXOP;
 215                 }
 216         }
 217
 218         /* monitor setup */
 219         rc = ldap_back_monitor_db_open( be );
 220         if ( rc != 0 ) {
 221                 /* ignore by now */
 222                 rc = 0;
 223 #if 0
 224                 goto fail;
 225 #endif
 226         }
 227
 228         li->li_flags |= LDAP_BACK_F_ISOPEN;
 229
 230 fail:;
 231         return rc;
 232 }
 233
 234 void
 235 ldap_back_conn_free( void *v_lc )
 236 {
 237         ldapconn_t      *lc = v_lc;
 238
 239         if ( lc->lc_ld != NULL ) {
 240                 ldap_unbind_ext( lc->lc_ld, NULL, NULL );
 241         }
 242         if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
 243                 ch_free( lc->lc_bound_ndn.bv_val );
 244         }
 245         if ( !BER_BVISNULL( &lc->lc_cred ) ) {
 246                 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
 247                 ch_free( lc->lc_cred.bv_val );
 248         }
 249         if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) {
 250                 ch_free( lc->lc_local_ndn.bv_val );
 251         }
 252         lc->lc_q.tqe_prev = NULL;
 253         lc->lc_q.tqe_next = NULL;
 254         ch_free( lc );
 255 }
 256
 257 int
 258 ldap_back_db_close( Backend *be )
 259 {
 260         int             rc = 0;
 261
 262         if ( be->be_private ) {
 263                 rc = ldap_back_monitor_db_close( be );
 264         }
 265
 266         return rc;
 267 }
 268
 269 int
 270 ldap_back_db_destroy( Backend *be )
 271 {
 272         if ( be->be_private ) {
 273                 ldapinfo_t      *li = ( ldapinfo_t * )be->be_private;
 274                 unsigned        i;
 275
 276                 (void)ldap_back_monitor_db_destroy( be );
 277
 278                 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
 279
 280                 if ( li->li_uri != NULL ) {
 281                         ch_free( li->li_uri );
 282                         li->li_uri = NULL;
 283
 284                         assert( li->li_bvuri != NULL );
 285                         ber_bvarray_free( li->li_bvuri );
 286                         li->li_bvuri = NULL;
 287                 }
 288                 if ( !BER_BVISNULL( &li->li_acl_authcID ) ) {
 289                         ch_free( li->li_acl_authcID.bv_val );
 290                         BER_BVZERO( &li->li_acl_authcID );
 291                 }
 292                 if ( !BER_BVISNULL( &li->li_acl_authcDN ) ) {
 293                         ch_free( li->li_acl_authcDN.bv_val );
 294                         BER_BVZERO( &li->li_acl_authcDN );
 295                 }
 296                 if ( !BER_BVISNULL( &li->li_acl_passwd ) ) {
 297                         ch_free( li->li_acl_passwd.bv_val );
 298                         BER_BVZERO( &li->li_acl_passwd );
 299                 }
 300                 if ( !BER_BVISNULL( &li->li_acl_sasl_mech ) ) {
 301                         ch_free( li->li_acl_sasl_mech.bv_val );
 302                         BER_BVZERO( &li->li_acl_sasl_mech );
 303                 }
 304                 if ( !BER_BVISNULL( &li->li_acl_sasl_realm ) ) {
 305                         ch_free( li->li_acl_sasl_realm.bv_val );
 306                         BER_BVZERO( &li->li_acl_sasl_realm );
 307                 }
 308                 if ( !BER_BVISNULL( &li->li_idassert_authcID ) ) {
 309                         ch_free( li->li_idassert_authcID.bv_val );
 310                         BER_BVZERO( &li->li_idassert_authcID );
 311                 }
 312                 if ( !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
 313                         ch_free( li->li_idassert_authcDN.bv_val );
 314                         BER_BVZERO( &li->li_idassert_authcDN );
 315                 }
 316                 if ( !BER_BVISNULL( &li->li_idassert_passwd ) ) {
 317                         ch_free( li->li_idassert_passwd.bv_val );
 318                         BER_BVZERO( &li->li_idassert_passwd );
 319                 }
 320                 if ( !BER_BVISNULL( &li->li_idassert_authzID ) ) {
 321                         ch_free( li->li_idassert_authzID.bv_val );
 322                         BER_BVZERO( &li->li_idassert_authzID );
 323                 }
 324                 if ( !BER_BVISNULL( &li->li_idassert_sasl_mech ) ) {
 325                         ch_free( li->li_idassert_sasl_mech.bv_val );
 326                         BER_BVZERO( &li->li_idassert_sasl_mech );
 327                 }
 328                 if ( !BER_BVISNULL( &li->li_idassert_sasl_realm ) ) {
 329                         ch_free( li->li_idassert_sasl_realm.bv_val );
 330                         BER_BVZERO( &li->li_idassert_sasl_realm );
 331                 }
 332                 if ( li->li_idassert_authz != NULL ) {
 333                         ber_bvarray_free( li->li_idassert_authz );
 334                         li->li_idassert_authz = NULL;
 335                 }
 336                 if ( li->li_conninfo.lai_tree ) {
 337                         avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free );
 338                 }
 339                 for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
 340                         while ( !LDAP_TAILQ_EMPTY( &li->li_conn_priv[ i ].lic_priv ) ) {
 341                                 ldapconn_t      *lc = LDAP_TAILQ_FIRST( &li->li_conn_priv[ i ].lic_priv );
 342
 343                                 LDAP_TAILQ_REMOVE( &li->li_conn_priv[ i ].lic_priv, lc, lc_q );
 344                                 ldap_back_conn_free( lc );
 345                         }
 346                 }
 347                 if ( LDAP_BACK_QUARANTINE( li ) ) {
 348                         slap_retry_info_destroy( &li->li_quarantine );
 349                         ldap_pvt_thread_mutex_destroy( &li->li_quarantine_mutex );
 350                 }
 351
 352                 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
 353                 ldap_pvt_thread_mutex_destroy( &li->li_conninfo.lai_mutex );
 354                 ldap_pvt_thread_mutex_destroy( &li->li_uri_mutex );
 355         }
 356
 357         ch_free( be->be_private );
 358
 359         return 0;
 360 }
 361
 362 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC
 363
 364 /* conditionally define the init_module() function */
 365 SLAP_BACKEND_INIT_MODULE( ldap )
 366
 367 #endif /* SLAPD_LDAP == SLAPD_MOD_DYNAMIC */
 368