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_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_initialize() ) {
  74                 return -1;
  75         }
  76
  77 #ifdef LDAP_DEVEL
  78         if ( distproc_initialize() ) {
  79                 return -1;
  80         }
  81 #endif
  82
  83         return ldap_back_init_cf( bi );
  84 }
  85
  86 int
  87 ldap_back_db_init( Backend *be )
  88 {
  89         ldapinfo_t      *li;
  90
  91         li = (ldapinfo_t *)ch_calloc( 1, sizeof( ldapinfo_t ) );
  92         if ( li == NULL ) {
  93                 return -1;
  94         }
  95
  96         BER_BVZERO( &li->li_acl_authcID );
  97         BER_BVZERO( &li->li_acl_authcDN );
  98         BER_BVZERO( &li->li_acl_passwd );
  99
 100         li->li_acl_authmethod = LDAP_AUTH_NONE;
 101         BER_BVZERO( &li->li_acl_sasl_mech );
 102         li->li_acl.sb_tls = SB_TLS_DEFAULT;
 103
 104         li->li_idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
 105
 106         BER_BVZERO( &li->li_idassert_authcID );
 107         BER_BVZERO( &li->li_idassert_authcDN );
 108         BER_BVZERO( &li->li_idassert_passwd );
 109
 110         BER_BVZERO( &li->li_idassert_authzID );
 111
 112         li->li_idassert_authmethod = LDAP_AUTH_NONE;
 113         BER_BVZERO( &li->li_idassert_sasl_mech );
 114         li->li_idassert.sb_tls = SB_TLS_DEFAULT;
 115
 116         /* by default, use proxyAuthz control on each operation */
 117         li->li_idassert_flags = LDAP_BACK_AUTH_PRESCRIPTIVE;
 118
 119         li->li_idassert_authz = NULL;
 120
 121         /* initialize flags */
 122         li->li_flags = LDAP_BACK_F_CHASE_REFERRALS;
 123
 124         /* initialize version */
 125         li->li_version = LDAP_VERSION3;
 126
 127         ldap_pvt_thread_mutex_init( &li->li_conninfo.lai_mutex );
 128
 129         be->be_private = li;
 130         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_NOLASTMOD;
 131
 132         be->be_cf_ocs = be->bd_info->bi_cf_ocs;
 133
 134         return 0;
 135 }
 136
 137 int
 138 ldap_back_db_open( BackendDB *be )
 139 {
 140         ldapinfo_t      *li = (ldapinfo_t *)be->be_private;
 141
 142         Debug( LDAP_DEBUG_TRACE,
 143                 "ldap_back_db_open: URI=%s\n",
 144                 li->li_uri != NULL ? li->li_uri : "", 0, 0 );
 145
 146         /* by default, use proxyAuthz control on each operation */
 147         switch ( li->li_idassert_mode ) {
 148         case LDAP_BACK_IDASSERT_LEGACY:
 149         case LDAP_BACK_IDASSERT_SELF:
 150                 /* however, since admin connections are pooled and shared,
 151                  * only static authzIDs can be native */
 152                 li->li_idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 153                 break;
 154
 155         default:
 156                 break;
 157         }
 158
 159 #if 0 && defined(SLAPD_MONITOR)
 160         {
 161                 /* FIXME: disabled because namingContexts doesn't have
 162                  * a matching rule, and using an MRA filter doesn't work
 163                  * because the normalized assertion is compared to the
 164                  * non-normalized value, which in general differs from
 165                  * the normalized one.  See ITS#3406 */
 166                 struct berval   filter,
 167                                 base = BER_BVC( "cn=Databases," SLAPD_MONITOR );
 168                 Attribute       a = { 0 };
 169
 170                 filter.bv_len = STRLENOF( "(&(namingContexts:distinguishedNameMatch:=)(monitoredInfo=ldap))" )
 171                         + be->be_nsuffix[ 0 ].bv_len;
 172                 filter.bv_val = ch_malloc( filter.bv_len + 1 );
 173                 snprintf( filter.bv_val, filter.bv_len + 1,
 174                                 "(&(namingContexts:distinguishedNameMatch:=%s)(monitoredInfo=ldap))",
 175                                 be->be_nsuffix[ 0 ].bv_val );
 176
 177                 a.a_desc = slap_schema.si_ad_labeledURI;
 178                 a.a_vals = li->li_bvuri;
 179                 a.a_nvals = li->li_bvuri;
 180                 if ( monitor_back_register_entry_attrs( NULL, &a, NULL, &base, LDAP_SCOPE_SUBTREE, &filter ) ) {
 181                         /* error */
 182                 }
 183
 184                 ch_free( filter.bv_val );
 185         }
 186 #endif /* SLAPD_MONITOR */
 187
 188         if ( li->li_flags & LDAP_BACK_F_SUPPORT_T_F_DISCOVER ) {
 189                 int             rc;
 190
 191                 li->li_flags &= ~LDAP_BACK_F_SUPPORT_T_F_DISCOVER;
 192
 193                 rc = slap_discover_feature( li->li_uri, li->li_version,
 194                                 slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
 195                                 LDAP_FEATURE_ABSOLUTE_FILTERS );
 196                 if ( rc == LDAP_COMPARE_TRUE ) {
 197                         li->li_flags |= LDAP_BACK_F_SUPPORT_T_F;
 198                 }
 199         }
 200
 201         return 0;
 202 }
 203
 204 void
 205 ldap_back_conn_free( void *v_lc )
 206 {
 207         ldapconn_t      *lc = v_lc;
 208
 209         if ( lc->lc_ld != NULL ) {
 210                 ldap_unbind_ext( lc->lc_ld, NULL, NULL );
 211         }
 212         if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
 213                 ch_free( lc->lc_bound_ndn.bv_val );
 214         }
 215         if ( !BER_BVISNULL( &lc->lc_cred ) ) {
 216                 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
 217                 ch_free( lc->lc_cred.bv_val );
 218         }
 219         if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) {
 220                 ch_free( lc->lc_local_ndn.bv_val );
 221         }
 222         ch_free( lc );
 223 }
 224
 225 int
 226 ldap_back_db_destroy(
 227     Backend     *be
 228 )
 229 {
 230         if ( be->be_private ) {
 231                 ldapinfo_t      *li = ( ldapinfo_t * )be->be_private;
 232
 233                 ldap_pvt_thread_mutex_lock( &li->li_conninfo.lai_mutex );
 234
 235                 if ( li->li_uri != NULL ) {
 236                         ch_free( li->li_uri );
 237                         li->li_uri = NULL;
 238
 239                         assert( li->li_bvuri != NULL );
 240                         ber_bvarray_free( li->li_bvuri );
 241                         li->li_bvuri = NULL;
 242                 }
 243                 if ( !BER_BVISNULL( &li->li_acl_authcID ) ) {
 244                         ch_free( li->li_acl_authcID.bv_val );
 245                         BER_BVZERO( &li->li_acl_authcID );
 246                 }
 247                 if ( !BER_BVISNULL( &li->li_acl_authcDN ) ) {
 248                         ch_free( li->li_acl_authcDN.bv_val );
 249                         BER_BVZERO( &li->li_acl_authcDN );
 250                 }
 251                 if ( !BER_BVISNULL( &li->li_acl_passwd ) ) {
 252                         ch_free( li->li_acl_passwd.bv_val );
 253                         BER_BVZERO( &li->li_acl_passwd );
 254                 }
 255                 if ( !BER_BVISNULL( &li->li_acl_sasl_mech ) ) {
 256                         ch_free( li->li_acl_sasl_mech.bv_val );
 257                         BER_BVZERO( &li->li_acl_sasl_mech );
 258                 }
 259                 if ( !BER_BVISNULL( &li->li_acl_sasl_realm ) ) {
 260                         ch_free( li->li_acl_sasl_realm.bv_val );
 261                         BER_BVZERO( &li->li_acl_sasl_realm );
 262                 }
 263                 if ( !BER_BVISNULL( &li->li_idassert_authcID ) ) {
 264                         ch_free( li->li_idassert_authcID.bv_val );
 265                         BER_BVZERO( &li->li_idassert_authcID );
 266                 }
 267                 if ( !BER_BVISNULL( &li->li_idassert_authcDN ) ) {
 268                         ch_free( li->li_idassert_authcDN.bv_val );
 269                         BER_BVZERO( &li->li_idassert_authcDN );
 270                 }
 271                 if ( !BER_BVISNULL( &li->li_idassert_passwd ) ) {
 272                         ch_free( li->li_idassert_passwd.bv_val );
 273                         BER_BVZERO( &li->li_idassert_passwd );
 274                 }
 275                 if ( !BER_BVISNULL( &li->li_idassert_authzID ) ) {
 276                         ch_free( li->li_idassert_authzID.bv_val );
 277                         BER_BVZERO( &li->li_idassert_authzID );
 278                 }
 279                 if ( !BER_BVISNULL( &li->li_idassert_sasl_mech ) ) {
 280                         ch_free( li->li_idassert_sasl_mech.bv_val );
 281                         BER_BVZERO( &li->li_idassert_sasl_mech );
 282                 }
 283                 if ( !BER_BVISNULL( &li->li_idassert_sasl_realm ) ) {
 284                         ch_free( li->li_idassert_sasl_realm.bv_val );
 285                         BER_BVZERO( &li->li_idassert_sasl_realm );
 286                 }
 287                 if ( li->li_idassert_authz != NULL ) {
 288                         ber_bvarray_free( li->li_idassert_authz );
 289                         li->li_idassert_authz = NULL;
 290                 }
 291                 if ( li->li_conninfo.lai_tree ) {
 292                         avl_free( li->li_conninfo.lai_tree, ldap_back_conn_free );
 293                 }
 294
 295                 ldap_pvt_thread_mutex_unlock( &li->li_conninfo.lai_mutex );
 296                 ldap_pvt_thread_mutex_destroy( &li->li_conninfo.lai_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