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         bi->bi_flags =
  45 #ifdef LDAP_DYNAMIC_OBJECTS
  46                 /* this is set because all the support a proxy has to provide
  47                  * is the capability to forward the refresh exop, and to
  48                  * pass thru entries that contain the dynamicObject class
  49                  * and the entryTtl attribute */
  50                 SLAP_BFLAG_DYNAMIC |
  51 #endif /* LDAP_DYNAMIC_OBJECTS */
  52                 0;
  53
  54         bi->bi_open = ldap_back_open;
  55         bi->bi_config = 0;
  56         bi->bi_close = 0;
  57         bi->bi_destroy = 0;
  58
  59         bi->bi_db_init = ldap_back_db_init;
  60         bi->bi_db_config = config_generic_wrapper;
  61         bi->bi_db_open = ldap_back_db_open;
  62         bi->bi_db_close = 0;
  63         bi->bi_db_destroy = ldap_back_db_destroy;
  64
  65         bi->bi_op_bind = ldap_back_bind;
  66         bi->bi_op_unbind = 0;
  67         bi->bi_op_search = ldap_back_search;
  68         bi->bi_op_compare = ldap_back_compare;
  69         bi->bi_op_modify = ldap_back_modify;
  70         bi->bi_op_modrdn = ldap_back_modrdn;
  71         bi->bi_op_add = ldap_back_add;
  72         bi->bi_op_delete = ldap_back_delete;
  73         bi->bi_op_abandon = 0;
  74
  75         bi->bi_extended = ldap_back_extended;
  76
  77         bi->bi_chk_referrals = 0;
  78         bi->bi_entry_get_rw = ldap_back_entry_get;
  79
  80         bi->bi_connection_init = 0;
  81         bi->bi_connection_destroy = ldap_back_conn_destroy;
  82
  83         if ( chain_initialize() ) {
  84                 return -1;
  85         }
  86
  87 #ifdef LDAP_DEVEL
  88         if ( distproc_initialize() ) {
  89                 return -1;
  90         }
  91 #endif
  92
  93         return ldap_back_init_cf( bi );
  94 }
  95
  96 int
  97 ldap_back_db_init( Backend *be )
  98 {
  99         ldapinfo_t      *li;
 100
 101         li = (ldapinfo_t *)ch_calloc( 1, sizeof( ldapinfo_t ) );
 102         if ( li == NULL ) {
 103                 return -1;
 104         }
 105
 106         li->li_rebind_f = ldap_back_default_rebind;
 107         li->li_urllist_f = ldap_back_default_urllist;
 108         li->li_urllist_p = li;
 109         ldap_pvt_thread_mutex_init( &li->li_uri_mutex );
 110
 111         BER_BVZERO( &li->li_acl_authcID );
 112         BER_BVZERO( &li->li_acl_authcDN );
 113         BER_BVZERO( &li->li_acl_passwd );
 114
 115         li->li_acl_authmethod = LDAP_AUTH_NONE;
 116         BER_BVZERO( &li->li_acl_sasl_mech );
 117         li->li_acl.sb_tls = SB_TLS_DEFAULT;
 118
 119         li->li_idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
 120
 121         BER_BVZERO( &li->li_idassert_authcID );
 122         BER_BVZERO( &li->li_idassert_authcDN );
 123         BER_BVZERO( &li->li_idassert_passwd );
 124
 125         BER_BVZERO( &li->li_idassert_authzID );
 126
 127         li->li_idassert_authmethod = LDAP_AUTH_NONE;
 128         BER_BVZERO( &li->li_idassert_sasl_mech );
 129         li->li_idassert.sb_tls = SB_TLS_DEFAULT;
 130
 131         /* by default, use proxyAuthz control on each operation */
 132         li->li_idassert_flags = LDAP_BACK_AUTH_PRESCRIPTIVE;
 133
 134         li->li_idassert_authz = NULL;
 135
 136         /* initialize flags */
 137         li->li_flags = LDAP_BACK_F_CHASE_REFERRALS;
 138
 139         /* initialize version */
 140         li->li_version = LDAP_VERSION3;
 141
 142         ldap_pvt_thread_mutex_init( &li->li_conninfo.lai_mutex );
 143
 144         be->be_private = li;
 145         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_NOLASTMOD;
 146
 147         be->be_cf_ocs = be->bd_info->bi_cf_ocs;
 148
 149         return 0;
 150 }
 151
 152 int
 153 ldap_back_db_open( BackendDB *be )
 154 {
 155         ldapinfo_t      *li = (ldapinfo_t *)be->be_private;
 156
 157         Debug( LDAP_DEBUG_TRACE,
 158                 "ldap_back_db_open: URI=%s\n",
 159                 li->li_uri != NULL ? li->li_uri : "", 0, 0 );
 160
 161         /* by default, use proxyAuthz control on each operation */
 162         switch ( li->li_idassert_mode ) {
 163         case LDAP_BACK_IDASSERT_LEGACY:
 164         case LDAP_BACK_IDASSERT_SELF:
 165                 /* however, since admin connections are pooled and shared,
 166                  * only static authzIDs can be native */
 167                 li->li_idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 168                 break;
 169
 170         default:
 171                 break;
 172         }
 173
 174 #if 0 && defined(SLAPD_MONITOR)
 175         {
 176                 /* FIXME: disabled because namingContexts doesn't have
 177                  * a matching rule, and using an MRA filter doesn't work
 178                  * because the normalized assertion is compared to the
 179                  * non-normalized value, which in general differs from
 180                  * the normalized one.  See ITS#3406 */
 181                 struct berval   filter,
 182                                 base = BER_BVC( "cn=Databases," SLAPD_MONITOR );
 183                 Attribute       a = { 0 };
 184
 185                 filter.bv_len = STRLENOF( "(&(namingContexts:distinguishedNameMatch:=)(monitoredInfo=ldap))" )
 186                         + be->be_nsuffix[ 0 ].bv_len;
 187                 filter.bv_val = ch_malloc( filter.bv_len + 1 );
 188                 snprintf( filter.bv_val, filter.bv_len + 1,
 189                                 "(&(namingContexts:distinguishedNameMatch:=%s)(monitoredInfo=ldap))",
 190                                 be->be_nsuffix[ 0 ].bv_val );
 191
 192                 a.a_desc = slap_schema.si_ad_labeledURI;
 193                 a.a_vals = li->li_bvuri;
 194                 a.a_nvals = li->li_bvuri;
 195                 if ( monitor_back_register_entry_attrs( NULL, &a, NULL, &base, LDAP_SCOPE_SUBTREE, &filter ) ) {
 196                         /* error */
 197                 }
 198
 199                 ch_free( filter.bv_val );
 200         }
 201 #endif /* SLAPD_MONITOR */
 202
 203         if ( LDAP_BACK_T_F_DISCOVER( li ) && !LDAP_BACK_T_F( li ) ) {
 204                 int             rc;
 205
 206                 rc = slap_discover_feature( li->li_uri, li->li_version,
 207                                 slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
 208                                 LDAP_FEATURE_ABSOLUTE_FILTERS );
 209                 if ( rc == LDAP_COMPARE_TRUE ) {
 210                         li->li_flags |= LDAP_BACK_F_T_F;
 211                 }
 212         }
 213
 214         if ( LDAP_BACK_CANCEL_DISCOVER( li ) && !LDAP_BACK_CANCEL( li ) ) {
 215                 int             rc;
 216
 217                 rc = slap_discover_feature( li->li_uri, li->li_version,
 218                                 slap_schema.si_ad_supportedExtension->ad_cname.bv_val,
 219                                 LDAP_EXOP_CANCEL );
 220                 if ( rc == LDAP_COMPARE_TRUE ) {
 221                         li->li_flags |= LDAP_BACK_F_CANCEL_EXOP;
 222                 }
 223         }
 224
 225         li->li_flags |= LDAP_BACK_F_ISOPEN;
 226
 227         return 0;
 228 }
 229
 230 void
 231 ldap_back_conn_free( void *v_lc )
 232 {
 233         ldapconn_t      *lc = v_lc;
 234
 235         if ( lc->lc_ld != NULL ) {
 236                 ldap_unbind_ext( lc->lc_ld, NULL, NULL );
 237         }
 238         if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
 239                 ch_free( lc->lc_bound_ndn.bv_val );
 240         }
 241         if ( !BER_BVISNULL( &lc->lc_cred ) ) {
 242                 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
 243                 ch_free( lc->lc_cred.bv_val );
 244         }
 245         if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) {
 246                 ch_free( lc->lc_local_ndn.bv_val );
 247         }
 248         ch_free( lc );
 249 }
 250
 251 int
 252 ldap_back_db_destroy(
 253     Backend     *be
 254 )
 255 {
 256         if ( be->be_private ) {
 257                 ldapinfo_t      *li = ( ldapinfo_t * )be->be_private;
 258
 259                 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
 260
 261                 if ( li->li_uri != NULL ) {
 262                         ch_free( li->li_uri );
 263                         li->li_uri = NULL;
 264
 265                         assert( li->li_bvuri != NULL );
 266                         ber_bvarray_free( li->li_bvuri );
 267                         li->li_bvuri = NULL;
 268                 }
 269                 if ( !BER_BVISNULL( &li->li_acl_authcID ) ) {
 270                         ch_free( li->li_acl_authcID.bv_val );
 271                         BER_BVZERO( &li->li_acl_authcID );
 272                 }
 273                 if ( !BER_BVISNULL( &li->li_acl_authcDN ) ) {
 274                         ch_free( li->li_acl_authcDN.bv_val );
 275                         BER_BVZERO( &li->li_acl_authcDN );
 276                 }
 277                 if ( !BER_BVISNULL( &li->li_acl_passwd ) ) {
 278                         ch_free( li->li_acl_passwd.bv_val );
 279                         BER_BVZERO( &li->li_acl_passwd );
 280                 }
 281                 if ( !BER_BVISNULL( &li->li_acl_sasl_mech ) ) {
 282                         ch_free( li->li_acl_sasl_mech.bv_val );
 283                         BER_BVZERO( &li->li_acl_sasl_mech );
 284                 }
 285                 if ( !BER_BVISNULL( &li->li_acl_sasl_realm ) ) {
 286                         ch_free( li->li_acl_sasl_realm.bv_val );
 287                         BER_BVZERO( &li->li_acl_sasl_realm );
 288                 }
 289                 if ( !BER_BVISNULL( &li->li_idassert_authcID ) ) {
 290                         ch_free( li->li_idassert_authcID.bv_val );
 291                         BER_BVZERO( &li->li_idassert_authcID );
 292                 }
 293                 if ( !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
 294                         ch_free( li->li_idassert_authcDN.bv_val );
 295                         BER_BVZERO( &li->li_idassert_authcDN );
 296                 }
 297                 if ( !BER_BVISNULL( &li->li_idassert_passwd ) ) {
 298                         ch_free( li->li_idassert_passwd.bv_val );
 299                         BER_BVZERO( &li->li_idassert_passwd );
 300                 }
 301                 if ( !BER_BVISNULL( &li->li_idassert_authzID ) ) {
 302                         ch_free( li->li_idassert_authzID.bv_val );
 303                         BER_BVZERO( &li->li_idassert_authzID );
 304                 }
 305                 if ( !BER_BVISNULL( &li->li_idassert_sasl_mech ) ) {
 306                         ch_free( li->li_idassert_sasl_mech.bv_val );
 307                         BER_BVZERO( &li->li_idassert_sasl_mech );
 308                 }
 309                 if ( !BER_BVISNULL( &li->li_idassert_sasl_realm ) ) {
 310                         ch_free( li->li_idassert_sasl_realm.bv_val );
 311                         BER_BVZERO( &li->li_idassert_sasl_realm );
 312                 }
 313                 if ( li->li_idassert_authz != NULL ) {
 314                         ber_bvarray_free( li->li_idassert_authz );
 315                         li->li_idassert_authz = NULL;
 316                 }
 317                 if ( li->li_conninfo.lai_tree ) {
 318                         avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free );
 319                 }
 320
 321                 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
 322                 ldap_pvt_thread_mutex_destroy( &li->li_conninfo.lai_mutex );
 323                 ldap_pvt_thread_mutex_destroy( &li->li_uri_mutex );
 324         }
 325
 326         ch_free( be->be_private );
 327
 328         return 0;
 329 }
 330
 331 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC
 332
 333 /* conditionally define the init_module() function */
 334 SLAP_BACKEND_INIT_MODULE( ldap )
 335
 336 #endif /* SLAPD_LDAP == SLAPD_MOD_DYNAMIC */
 337