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 "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_open = ldap_back_open;
  45         bi->bi_config = 0;
  46         bi->bi_close = 0;
  47         bi->bi_destroy = 0;
  48
  49         bi->bi_db_init = ldap_back_db_init;
  50         bi->bi_db_config = config_generic_wrapper;
  51         bi->bi_db_open = ldap_back_db_open;
  52         bi->bi_db_close = 0;
  53         bi->bi_db_destroy = ldap_back_db_destroy;
  54
  55         bi->bi_op_bind = ldap_back_bind;
  56         bi->bi_op_unbind = 0;
  57         bi->bi_op_search = ldap_back_search;
  58         bi->bi_op_compare = ldap_back_compare;
  59         bi->bi_op_modify = ldap_back_modify;
  60         bi->bi_op_modrdn = ldap_back_modrdn;
  61         bi->bi_op_add = ldap_back_add;
  62         bi->bi_op_delete = ldap_back_delete;
  63         bi->bi_op_abandon = 0;
  64
  65         bi->bi_extended = ldap_back_extended;
  66
  67         bi->bi_chk_referrals = 0;
  68         bi->bi_entry_get_rw = ldap_back_entry_get;
  69
  70         bi->bi_connection_init = 0;
  71         bi->bi_connection_destroy = ldap_back_conn_destroy;
  72
  73         if ( chain_init() ) {
  74                 return -1;
  75         }
  76
  77         return ldap_back_init_cf( bi );
  78 }
  79
  80 int
  81 ldap_back_db_init( Backend *be )
  82 {
  83         ldapinfo_t      *li;
  84         unsigned        i;
  85
  86         li = (ldapinfo_t *)ch_calloc( 1, sizeof( ldapinfo_t ) );
  87         if ( li == NULL ) {
  88                 return -1;
  89         }
  90
  91         li->li_rebind_f = ldap_back_default_rebind;
  92         ldap_pvt_thread_mutex_init( &li->li_uri_mutex );
  93
  94         BER_BVZERO( &li->li_acl_authcID );
  95         BER_BVZERO( &li->li_acl_authcDN );
  96         BER_BVZERO( &li->li_acl_passwd );
  97
  98         li->li_acl_authmethod = LDAP_AUTH_NONE;
  99         BER_BVZERO( &li->li_acl_sasl_mech );
 100         li->li_acl.sb_tls = SB_TLS_DEFAULT;
 101
 102         li->li_idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
 103
 104         BER_BVZERO( &li->li_idassert_authcID );
 105         BER_BVZERO( &li->li_idassert_authcDN );
 106         BER_BVZERO( &li->li_idassert_passwd );
 107
 108         BER_BVZERO( &li->li_idassert_authzID );
 109
 110         li->li_idassert_authmethod = LDAP_AUTH_NONE;
 111         BER_BVZERO( &li->li_idassert_sasl_mech );
 112         li->li_idassert_tls = SB_TLS_DEFAULT;
 113
 114         /* by default, use proxyAuthz control on each operation */
 115         li->li_idassert_flags = LDAP_BACK_AUTH_PRESCRIPTIVE;
 116
 117         li->li_idassert_authz = NULL;
 118
 119         /* initialize flags */
 120         li->li_flags = LDAP_BACK_F_CHASE_REFERRALS;
 121
 122         /* initialize version */
 123         li->li_version = LDAP_VERSION3;
 124
 125         ldap_pvt_thread_mutex_init( &li->li_conninfo.lai_mutex );
 126
 127         for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
 128                 li->li_conn_priv[ i ].lic_num = 0;
 129                 LDAP_TAILQ_INIT( &li->li_conn_priv[ i ].lic_priv );
 130         }
 131         li->li_conn_priv_max = LDAP_BACK_CONN_PRIV_DEFAULT;
 132
 133         be->be_private = li;
 134         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_NOLASTMOD;
 135
 136         be->be_cf_ocs = be->bd_info->bi_cf_ocs;
 137
 138         return 0;
 139 }
 140
 141 int
 142 ldap_back_db_open( BackendDB *be )
 143 {
 144         ldapinfo_t      *li = (ldapinfo_t *)be->be_private;
 145
 146         Debug( LDAP_DEBUG_TRACE,
 147                 "ldap_back_db_open: URI=%s\n",
 148                 li->li_uri != NULL ? li->li_uri : "", 0, 0 );
 149
 150         /* by default, use proxyAuthz control on each operation */
 151         switch ( li->li_idassert_mode ) {
 152         case LDAP_BACK_IDASSERT_LEGACY:
 153         case LDAP_BACK_IDASSERT_SELF:
 154                 /* however, since admin connections are pooled and shared,
 155                  * only static authzIDs can be native */
 156                 li->li_idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 157                 break;
 158
 159         default:
 160                 break;
 161         }
 162
 163         if ( LDAP_BACK_T_F_DISCOVER( li ) && !LDAP_BACK_T_F( li ) ) {
 164                 int             rc;
 165
 166                 rc = slap_discover_feature( li->li_uri, li->li_version,
 167                                 slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
 168                                 LDAP_FEATURE_ABSOLUTE_FILTERS );
 169                 if ( rc == LDAP_COMPARE_TRUE ) {
 170                         li->li_flags |= LDAP_BACK_F_T_F;
 171                 }
 172         }
 173
 174         if ( LDAP_BACK_CANCEL_DISCOVER( li ) && !LDAP_BACK_CANCEL( li ) ) {
 175                 int             rc;
 176
 177                 rc = slap_discover_feature( li->li_uri, li->li_version,
 178                                 slap_schema.si_ad_supportedExtension->ad_cname.bv_val,
 179                                 LDAP_EXOP_CANCEL );
 180                 if ( rc == LDAP_COMPARE_TRUE ) {
 181                         li->li_flags |= LDAP_BACK_F_CANCEL_EXOP;
 182                 }
 183         }
 184
 185         li->li_flags |= LDAP_BACK_F_ISOPEN;
 186
 187         return 0;
 188 }
 189
 190 void
 191 ldap_back_conn_free( void *v_lc )
 192 {
 193         ldapconn_t      *lc = v_lc;
 194
 195         if ( lc->lc_ld != NULL ) {
 196                 ldap_unbind_ext( lc->lc_ld, NULL, NULL );
 197         }
 198         if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
 199                 ch_free( lc->lc_bound_ndn.bv_val );
 200         }
 201         if ( !BER_BVISNULL( &lc->lc_cred ) ) {
 202                 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
 203                 ch_free( lc->lc_cred.bv_val );
 204         }
 205         if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) {
 206                 ch_free( lc->lc_local_ndn.bv_val );
 207         }
 208         lc->lc_q.tqe_prev = NULL;
 209         lc->lc_q.tqe_next = NULL;
 210         ch_free( lc );
 211 }
 212
 213 int
 214 ldap_back_db_destroy( Backend *be )
 215 {
 216         if ( be->be_private ) {
 217                 ldapinfo_t      *li = ( ldapinfo_t * )be->be_private;
 218                 unsigned        i;
 219
 220                 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
 221
 222                 if ( li->li_uri != NULL ) {
 223                         ch_free( li->li_uri );
 224                         li->li_uri = NULL;
 225
 226                         assert( li->li_bvuri != NULL );
 227                         ber_bvarray_free( li->li_bvuri );
 228                         li->li_bvuri = NULL;
 229                 }
 230                 if ( !BER_BVISNULL( &li->li_acl_authcID ) ) {
 231                         ch_free( li->li_acl_authcID.bv_val );
 232                         BER_BVZERO( &li->li_acl_authcID );
 233                 }
 234                 if ( !BER_BVISNULL( &li->li_acl_authcDN ) ) {
 235                         ch_free( li->li_acl_authcDN.bv_val );
 236                         BER_BVZERO( &li->li_acl_authcDN );
 237                 }
 238                 if ( !BER_BVISNULL( &li->li_acl_passwd ) ) {
 239                         ch_free( li->li_acl_passwd.bv_val );
 240                         BER_BVZERO( &li->li_acl_passwd );
 241                 }
 242                 if ( !BER_BVISNULL( &li->li_acl_sasl_mech ) ) {
 243                         ch_free( li->li_acl_sasl_mech.bv_val );
 244                         BER_BVZERO( &li->li_acl_sasl_mech );
 245                 }
 246                 if ( !BER_BVISNULL( &li->li_acl_sasl_realm ) ) {
 247                         ch_free( li->li_acl_sasl_realm.bv_val );
 248                         BER_BVZERO( &li->li_acl_sasl_realm );
 249                 }
 250                 if ( !BER_BVISNULL( &li->li_idassert_authcID ) ) {
 251                         ch_free( li->li_idassert_authcID.bv_val );
 252                         BER_BVZERO( &li->li_idassert_authcID );
 253                 }
 254                 if ( !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
 255                         ch_free( li->li_idassert_authcDN.bv_val );
 256                         BER_BVZERO( &li->li_idassert_authcDN );
 257                 }
 258                 if ( !BER_BVISNULL( &li->li_idassert_passwd ) ) {
 259                         ch_free( li->li_idassert_passwd.bv_val );
 260                         BER_BVZERO( &li->li_idassert_passwd );
 261                 }
 262                 if ( !BER_BVISNULL( &li->li_idassert_authzID ) ) {
 263                         ch_free( li->li_idassert_authzID.bv_val );
 264                         BER_BVZERO( &li->li_idassert_authzID );
 265                 }
 266                 if ( !BER_BVISNULL( &li->li_idassert_sasl_mech ) ) {
 267                         ch_free( li->li_idassert_sasl_mech.bv_val );
 268                         BER_BVZERO( &li->li_idassert_sasl_mech );
 269                 }
 270                 if ( !BER_BVISNULL( &li->li_idassert_sasl_realm ) ) {
 271                         ch_free( li->li_idassert_sasl_realm.bv_val );
 272                         BER_BVZERO( &li->li_idassert_sasl_realm );
 273                 }
 274                 if ( li->li_idassert_authz != NULL ) {
 275                         ber_bvarray_free( li->li_idassert_authz );
 276                         li->li_idassert_authz = NULL;
 277                 }
 278                 if ( li->li_conninfo.lai_tree ) {
 279                         avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free );
 280                 }
 281                 for ( i = LDAP_BACK_PCONN_FIRST; i < LDAP_BACK_PCONN_LAST; i++ ) {
 282                         while ( !LDAP_TAILQ_EMPTY( &li->li_conn_priv[ i ].lic_priv ) ) {
 283                                 ldapconn_t      *lc = LDAP_TAILQ_FIRST( &li->li_conn_priv[ i ].lic_priv );
 284
 285                                 LDAP_TAILQ_REMOVE( &li->li_conn_priv[ i ].lic_priv, lc, lc_q );
 286                                 ldap_back_conn_free( lc );
 287                         }
 288                 }
 289                 if ( LDAP_BACK_QUARANTINE( li ) ) {
 290                         slap_retry_info_destroy( &li->li_quarantine );
 291                         ldap_pvt_thread_mutex_destroy( &li->li_quarantine_mutex );
 292                 }
 293
 294                 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
 295                 ldap_pvt_thread_mutex_destroy( &li->li_conninfo.lai_mutex );
 296                 ldap_pvt_thread_mutex_destroy( &li->li_uri_mutex );
 297         }
 298
 299         ch_free( be->be_private );
 300
 301         return 0;
 302 }
 303
 304 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC
 305
 306 /* conditionally define the init_module() function */
 307 SLAP_BACKEND_INIT_MODULE( ldap )
 308
 309 #endif /* SLAPD_LDAP == SLAPD_MOD_DYNAMIC */
 310