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 2003-2006 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 = { 0 };
 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                 int             rc;
 202
 203                 rc = slap_discover_feature( &sb,
 204                                 slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
 205                                 LDAP_FEATURE_ABSOLUTE_FILTERS );
 206                 if ( rc == LDAP_COMPARE_TRUE ) {
 207                         li->li_flags |= LDAP_BACK_F_T_F;
 208                 }
 209         }
 210
 211         if ( LDAP_BACK_CANCEL_DISCOVER( li ) && !LDAP_BACK_CANCEL( li ) ) {
 212                 rc = slap_discover_feature( &sb,
 213                                 slap_schema.si_ad_supportedExtension->ad_cname.bv_val,
 214                                 LDAP_EXOP_CANCEL );
 215                 if ( rc == LDAP_COMPARE_TRUE ) {
 216                         li->li_flags |= LDAP_BACK_F_CANCEL_EXOP;
 217                 }
 218         }
 219
 220         /* monitor setup */
 221         rc = ldap_back_monitor_db_open( be );
 222         if ( rc != 0 ) {
 223                 /* ignore by now */
 224                 rc = 0;
 225 #if 0
 226                 goto fail;
 227 #endif
 228         }
 229
 230         li->li_flags |= LDAP_BACK_F_ISOPEN;
 231
 232 fail:;
 233         return rc;
 234 }
 235
 236 void
 237 ldap_back_conn_free( void *v_lc )
 238 {
 239         ldapconn_t      *lc = v_lc;
 240
 241         if ( lc->lc_ld != NULL ) {
 242                 ldap_unbind_ext( lc->lc_ld, NULL, NULL );
 243         }
 244         if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
 245                 ch_free( lc->lc_bound_ndn.bv_val );
 246         }
 247         if ( !BER_BVISNULL( &lc->lc_cred ) ) {
 248                 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
 249                 ch_free( lc->lc_cred.bv_val );
 250         }
 251         if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) {
 252                 ch_free( lc->lc_local_ndn.bv_val );
 253         }
 254         lc->lc_q.tqe_prev = NULL;
 255         lc->lc_q.tqe_next = NULL;
 256         ch_free( lc );
 257 }
 258
 259 int
 260 ldap_back_db_close( Backend *be )
 261 {
 262         int             rc = 0;
 263
 264         if ( be->be_private ) {
 265                 rc = ldap_back_monitor_db_close( be );
 266         }
 267
 268         return rc;
 269 }
 270
 271 int
 272 ldap_back_db_destroy( Backend *be )
 273 {
 274         if ( be->be_private ) {
 275                 ldapinfo_t      *li = ( ldapinfo_t * )be->be_private;
 276                 unsigned        i;
 277
 278                 (void)ldap_back_monitor_db_destroy( be );
 279
 280                 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
 281
 282                 if ( li->li_uri != NULL ) {
 283                         ch_free( li->li_uri );
 284                         li->li_uri = NULL;
 285
 286                         assert( li->li_bvuri != NULL );
 287                         ber_bvarray_free( li->li_bvuri );
 288                         li->li_bvuri = NULL;
 289                 }
 290                 if ( !BER_BVISNULL( &li->li_acl_authcID ) ) {
 291                         ch_free( li->li_acl_authcID.bv_val );
 292                         BER_BVZERO( &li->li_acl_authcID );
 293                 }
 294                 if ( !BER_BVISNULL( &li->li_acl_authcDN ) ) {
 295                         ch_free( li->li_acl_authcDN.bv_val );
 296                         BER_BVZERO( &li->li_acl_authcDN );
 297                 }
 298                 if ( !BER_BVISNULL( &li->li_acl_passwd ) ) {
 299                         ch_free( li->li_acl_passwd.bv_val );
 300                         BER_BVZERO( &li->li_acl_passwd );
 301                 }
 302                 if ( !BER_BVISNULL( &li->li_acl_sasl_mech ) ) {
 303                         ch_free( li->li_acl_sasl_mech.bv_val );
 304                         BER_BVZERO( &li->li_acl_sasl_mech );
 305                 }
 306                 if ( !BER_BVISNULL( &li->li_acl_sasl_realm ) ) {
 307                         ch_free( li->li_acl_sasl_realm.bv_val );
 308                         BER_BVZERO( &li->li_acl_sasl_realm );
 309                 }
 310                 if ( !BER_BVISNULL( &li->li_idassert_authcID ) ) {
 311                         ch_free( li->li_idassert_authcID.bv_val );
 312                         BER_BVZERO( &li->li_idassert_authcID );
 313                 }
 314                 if ( !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
 315                         ch_free( li->li_idassert_authcDN.bv_val );
 316                         BER_BVZERO( &li->li_idassert_authcDN );
 317                 }
 318                 if ( !BER_BVISNULL( &li->li_idassert_passwd ) ) {
 319                         ch_free( li->li_idassert_passwd.bv_val );
 320                         BER_BVZERO( &li->li_idassert_passwd );
 321                 }
 322                 if ( !BER_BVISNULL( &li->li_idassert_authzID ) ) {
 323                         ch_free( li->li_idassert_authzID.bv_val );
 324                         BER_BVZERO( &li->li_idassert_authzID );
 325                 }
 326                 if ( !BER_BVISNULL( &li->li_idassert_sasl_mech ) ) {
 327                         ch_free( li->li_idassert_sasl_mech.bv_val );
 328                         BER_BVZERO( &li->li_idassert_sasl_mech );
 329                 }
 330                 if ( !BER_BVISNULL( &li->li_idassert_sasl_realm ) ) {
 331                         ch_free( li->li_idassert_sasl_realm.bv_val );
 332                         BER_BVZERO( &li->li_idassert_sasl_realm );
 333                 }
 334                 if ( li->li_idassert_authz != NULL ) {
 335                         ber_bvarray_free( li->li_idassert_authz );
 336                         li->li_idassert_authz = NULL;
 337                 }
 338                 if ( li->li_conninfo.lai_tree ) {
 339                         avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free );
 340                 }
 341                 for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
 342                         while ( !LDAP_TAILQ_EMPTY( &li->li_conn_priv[ i ].lic_priv ) ) {
 343                                 ldapconn_t      *lc = LDAP_TAILQ_FIRST( &li->li_conn_priv[ i ].lic_priv );
 344
 345                                 LDAP_TAILQ_REMOVE( &li->li_conn_priv[ i ].lic_priv, lc, lc_q );
 346                                 ldap_back_conn_free( lc );
 347                         }
 348                 }
 349                 if ( LDAP_BACK_QUARANTINE( li ) ) {
 350                         slap_retry_info_destroy( &li->li_quarantine );
 351                         ldap_pvt_thread_mutex_destroy( &li->li_quarantine_mutex );
 352                 }
 353
 354                 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
 355                 ldap_pvt_thread_mutex_destroy( &li->li_conninfo.lai_mutex );
 356                 ldap_pvt_thread_mutex_destroy( &li->li_uri_mutex );
 357         }
 358
 359         ch_free( be->be_private );
 360
 361         return 0;
 362 }
 363
 364 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC
 365
 366 /* conditionally define the init_module() function */
 367 SLAP_BACKEND_INIT_MODULE( ldap )
 368
 369 #endif /* SLAPD_LDAP == SLAPD_MOD_DYNAMIC */
 370