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