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 2003-2008 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 "config.h"
  33 #include "back-ldap.h"
  34
  35 static const ldap_extra_t ldap_extra = {
  36         ldap_back_proxy_authz_ctrl,
  37         ldap_back_controls_free
  38 };
  39
  40 int
  41 ldap_back_open( BackendInfo     *bi )
  42 {
  43         bi->bi_controls = slap_known_controls;
  44         return 0;
  45 }
  46
  47 int
  48 ldap_back_initialize( BackendInfo *bi )
  49 {
  50         int             rc;
  51
  52         bi->bi_flags =
  53 #ifdef LDAP_DYNAMIC_OBJECTS
  54                 /* this is set because all the support a proxy has to provide
  55                  * is the capability to forward the refresh exop, and to
  56                  * pass thru entries that contain the dynamicObject class
  57                  * and the entryTtl attribute */
  58                 SLAP_BFLAG_DYNAMIC |
  59 #endif /* LDAP_DYNAMIC_OBJECTS */
  60                 0;
  61
  62         bi->bi_open = ldap_back_open;
  63         bi->bi_config = 0;
  64         bi->bi_close = 0;
  65         bi->bi_destroy = 0;
  66
  67         bi->bi_db_init = ldap_back_db_init;
  68         bi->bi_db_config = config_generic_wrapper;
  69         bi->bi_db_open = ldap_back_db_open;
  70         bi->bi_db_close = ldap_back_db_close;
  71         bi->bi_db_destroy = ldap_back_db_destroy;
  72
  73         bi->bi_op_bind = ldap_back_bind;
  74         bi->bi_op_unbind = 0;
  75         bi->bi_op_search = ldap_back_search;
  76         bi->bi_op_compare = ldap_back_compare;
  77         bi->bi_op_modify = ldap_back_modify;
  78         bi->bi_op_modrdn = ldap_back_modrdn;
  79         bi->bi_op_add = ldap_back_add;
  80         bi->bi_op_delete = ldap_back_delete;
  81         bi->bi_op_abandon = 0;
  82
  83         bi->bi_extended = ldap_back_extended;
  84
  85         bi->bi_chk_referrals = 0;
  86         bi->bi_entry_get_rw = ldap_back_entry_get;
  87
  88         bi->bi_connection_init = 0;
  89         bi->bi_connection_destroy = ldap_back_conn_destroy;
  90
  91         bi->bi_extra = (void *)&ldap_extra;
  92
  93         rc = chain_initialize();
  94         if ( rc ) {
  95                 return rc;
  96         }
  97
  98 #ifdef SLAP_DISTPROC
  99         rc = distproc_initialize();
 100         if ( rc ) {
 101                 return rc;
 102         }
 103 #endif
 104
 105         return ldap_back_init_cf( bi );
 106 }
 107
 108 int
 109 ldap_back_db_init( Backend *be, ConfigReply *cr )
 110 {
 111         ldapinfo_t      *li;
 112         int             rc;
 113         unsigned        i;
 114
 115         li = (ldapinfo_t *)ch_calloc( 1, sizeof( ldapinfo_t ) );
 116         if ( li == NULL ) {
 117                 return -1;
 118         }
 119
 120         li->li_rebind_f = ldap_back_default_rebind;
 121         li->li_urllist_f = ldap_back_default_urllist;
 122         li->li_urllist_p = li;
 123         ldap_pvt_thread_mutex_init( &li->li_uri_mutex );
 124
 125         BER_BVZERO( &li->li_acl_authcID );
 126         BER_BVZERO( &li->li_acl_authcDN );
 127         BER_BVZERO( &li->li_acl_passwd );
 128
 129         li->li_acl_authmethod = LDAP_AUTH_NONE;
 130         BER_BVZERO( &li->li_acl_sasl_mech );
 131         li->li_acl.sb_tls = SB_TLS_DEFAULT;
 132
 133         li->li_idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
 134
 135         BER_BVZERO( &li->li_idassert_authcID );
 136         BER_BVZERO( &li->li_idassert_authcDN );
 137         BER_BVZERO( &li->li_idassert_passwd );
 138
 139         BER_BVZERO( &li->li_idassert_authzID );
 140
 141         li->li_idassert_authmethod = LDAP_AUTH_NONE;
 142         BER_BVZERO( &li->li_idassert_sasl_mech );
 143         li->li_idassert_tls = SB_TLS_DEFAULT;
 144
 145         /* by default, use proxyAuthz control on each operation */
 146         li->li_idassert_flags = LDAP_BACK_AUTH_PRESCRIPTIVE;
 147
 148         li->li_idassert_authz = NULL;
 149
 150         /* initialize flags */
 151         li->li_flags = LDAP_BACK_F_CHASE_REFERRALS;
 152
 153         /* initialize version */
 154         li->li_version = LDAP_VERSION3;
 155
 156         ldap_pvt_thread_mutex_init( &li->li_conninfo.lai_mutex );
 157
 158         for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
 159                 li->li_conn_priv[ i ].lic_num = 0;
 160                 LDAP_TAILQ_INIT( &li->li_conn_priv[ i ].lic_priv );
 161         }
 162         li->li_conn_priv_max = LDAP_BACK_CONN_PRIV_DEFAULT;
 163
 164         be->be_private = li;
 165         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_NOLASTMOD;
 166
 167         be->be_cf_ocs = be->bd_info->bi_cf_ocs;
 168
 169         rc = ldap_back_monitor_db_init( be );
 170         if ( rc != 0 ) {
 171                 /* ignore, by now */
 172                 rc = 0;
 173         }
 174
 175         return rc;
 176 }
 177
 178 int
 179 ldap_back_db_open( BackendDB *be, ConfigReply *cr )
 180 {
 181         ldapinfo_t      *li = (ldapinfo_t *)be->be_private;
 182
 183         slap_bindconf   sb = { BER_BVNULL };
 184         int             rc = 0;
 185
 186         Debug( LDAP_DEBUG_TRACE,
 187                 "ldap_back_db_open: URI=%s\n",
 188                 li->li_uri != NULL ? li->li_uri : "", 0, 0 );
 189
 190         /* by default, use proxyAuthz control on each operation */
 191         switch ( li->li_idassert_mode ) {
 192         case LDAP_BACK_IDASSERT_LEGACY:
 193         case LDAP_BACK_IDASSERT_SELF:
 194                 /* however, since admin connections are pooled and shared,
 195                  * only static authzIDs can be native */
 196                 li->li_idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 197                 break;
 198
 199         default:
 200                 break;
 201         }
 202
 203         ber_str2bv( li->li_uri, 0, 0, &sb.sb_uri );
 204         sb.sb_version = li->li_version;
 205         sb.sb_method = LDAP_AUTH_SIMPLE;
 206         BER_BVSTR( &sb.sb_binddn, "" );
 207
 208         if ( LDAP_BACK_T_F_DISCOVER( li ) && !LDAP_BACK_T_F( li ) ) {
 209                 rc = slap_discover_feature( &sb,
 210                                 slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
 211                                 LDAP_FEATURE_ABSOLUTE_FILTERS );
 212                 if ( rc == LDAP_COMPARE_TRUE ) {
 213                         li->li_flags |= LDAP_BACK_F_T_F;
 214                 }
 215         }
 216
 217         if ( LDAP_BACK_CANCEL_DISCOVER( li ) && !LDAP_BACK_CANCEL( li ) ) {
 218                 rc = slap_discover_feature( &sb,
 219                                 slap_schema.si_ad_supportedExtension->ad_cname.bv_val,
 220                                 LDAP_EXOP_CANCEL );
 221                 if ( rc == LDAP_COMPARE_TRUE ) {
 222                         li->li_flags |= LDAP_BACK_F_CANCEL_EXOP;
 223                 }
 224         }
 225
 226         /* monitor setup */
 227         rc = ldap_back_monitor_db_open( be );
 228         if ( rc != 0 ) {
 229                 /* ignore by now */
 230                 rc = 0;
 231 #if 0
 232                 goto fail;
 233 #endif
 234         }
 235
 236         li->li_flags |= LDAP_BACK_F_ISOPEN;
 237
 238 fail:;
 239         return rc;
 240 }
 241
 242 void
 243 ldap_back_conn_free( void *v_lc )
 244 {
 245         ldapconn_t      *lc = v_lc;
 246
 247         if ( lc->lc_ld != NULL ) {
 248                 ldap_unbind_ext( lc->lc_ld, NULL, NULL );
 249         }
 250         if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
 251                 ch_free( lc->lc_bound_ndn.bv_val );
 252         }
 253         if ( !BER_BVISNULL( &lc->lc_cred ) ) {
 254                 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
 255                 ch_free( lc->lc_cred.bv_val );
 256         }
 257         if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) {
 258                 ch_free( lc->lc_local_ndn.bv_val );
 259         }
 260         lc->lc_q.tqe_prev = NULL;
 261         lc->lc_q.tqe_next = NULL;
 262         ch_free( lc );
 263 }
 264
 265 int
 266 ldap_back_db_close( Backend *be, ConfigReply *cr )
 267 {
 268         int             rc = 0;
 269
 270         if ( be->be_private ) {
 271                 rc = ldap_back_monitor_db_close( be );
 272         }
 273
 274         return rc;
 275 }
 276
 277 int
 278 ldap_back_db_destroy( Backend *be, ConfigReply *cr )
 279 {
 280         if ( be->be_private ) {
 281                 ldapinfo_t      *li = ( ldapinfo_t * )be->be_private;
 282                 unsigned        i;
 283
 284                 (void)ldap_back_monitor_db_destroy( be );
 285
 286                 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
 287
 288                 if ( li->li_uri != NULL ) {
 289                         ch_free( li->li_uri );
 290                         li->li_uri = NULL;
 291
 292                         assert( li->li_bvuri != NULL );
 293                         ber_bvarray_free( li->li_bvuri );
 294                         li->li_bvuri = NULL;
 295                 }
 296                 if ( !BER_BVISNULL( &li->li_acl_authcID ) ) {
 297                         ch_free( li->li_acl_authcID.bv_val );
 298                         BER_BVZERO( &li->li_acl_authcID );
 299                 }
 300                 if ( !BER_BVISNULL( &li->li_acl_authcDN ) ) {
 301                         ch_free( li->li_acl_authcDN.bv_val );
 302                         BER_BVZERO( &li->li_acl_authcDN );
 303                 }
 304                 if ( !BER_BVISNULL( &li->li_acl_passwd ) ) {
 305                         ch_free( li->li_acl_passwd.bv_val );
 306                         BER_BVZERO( &li->li_acl_passwd );
 307                 }
 308                 if ( !BER_BVISNULL( &li->li_acl_sasl_mech ) ) {
 309                         ch_free( li->li_acl_sasl_mech.bv_val );
 310                         BER_BVZERO( &li->li_acl_sasl_mech );
 311                 }
 312                 if ( !BER_BVISNULL( &li->li_acl_sasl_realm ) ) {
 313                         ch_free( li->li_acl_sasl_realm.bv_val );
 314                         BER_BVZERO( &li->li_acl_sasl_realm );
 315                 }
 316                 if ( !BER_BVISNULL( &li->li_idassert_authcID ) ) {
 317                         ch_free( li->li_idassert_authcID.bv_val );
 318                         BER_BVZERO( &li->li_idassert_authcID );
 319                 }
 320                 if ( !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
 321                         ch_free( li->li_idassert_authcDN.bv_val );
 322                         BER_BVZERO( &li->li_idassert_authcDN );
 323                 }
 324                 if ( !BER_BVISNULL( &li->li_idassert_passwd ) ) {
 325                         ch_free( li->li_idassert_passwd.bv_val );
 326                         BER_BVZERO( &li->li_idassert_passwd );
 327                 }
 328                 if ( !BER_BVISNULL( &li->li_idassert_authzID ) ) {
 329                         ch_free( li->li_idassert_authzID.bv_val );
 330                         BER_BVZERO( &li->li_idassert_authzID );
 331                 }
 332                 if ( !BER_BVISNULL( &li->li_idassert_sasl_mech ) ) {
 333                         ch_free( li->li_idassert_sasl_mech.bv_val );
 334                         BER_BVZERO( &li->li_idassert_sasl_mech );
 335                 }
 336                 if ( !BER_BVISNULL( &li->li_idassert_sasl_realm ) ) {
 337                         ch_free( li->li_idassert_sasl_realm.bv_val );
 338                         BER_BVZERO( &li->li_idassert_sasl_realm );
 339                 }
 340                 if ( li->li_idassert_authz != NULL ) {
 341                         ber_bvarray_free( li->li_idassert_authz );
 342                         li->li_idassert_authz = NULL;
 343                 }
 344                 if ( li->li_conninfo.lai_tree ) {
 345                         avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free );
 346                 }
 347                 for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
 348                         while ( !LDAP_TAILQ_EMPTY( &li->li_conn_priv[ i ].lic_priv ) ) {
 349                                 ldapconn_t      *lc = LDAP_TAILQ_FIRST( &li->li_conn_priv[ i ].lic_priv );
 350
 351                                 LDAP_TAILQ_REMOVE( &li->li_conn_priv[ i ].lic_priv, lc, lc_q );
 352                                 ldap_back_conn_free( lc );
 353                         }
 354                 }
 355                 if ( LDAP_BACK_QUARANTINE( li ) ) {
 356                         slap_retry_info_destroy( &li->li_quarantine );
 357                         ldap_pvt_thread_mutex_destroy( &li->li_quarantine_mutex );
 358                 }
 359
 360                 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
 361                 ldap_pvt_thread_mutex_destroy( &li->li_conninfo.lai_mutex );
 362                 ldap_pvt_thread_mutex_destroy( &li->li_uri_mutex );
 363         }
 364
 365         ch_free( be->be_private );
 366
 367         return 0;
 368 }
 369
 370 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC
 371
 372 /* conditionally define the init_module() function */
 373 SLAP_BACKEND_INIT_MODULE( ldap )
 374
 375 #endif /* SLAPD_LDAP == SLAPD_MOD_DYNAMIC */
 376