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 2003-2005 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         struct ldapinfo *li;
  84
  85         li = (struct ldapinfo *)ch_calloc( 1, sizeof( struct ldapinfo ) );
  86         if ( li == NULL ) {
  87                 return -1;
  88         }
  89
  90         BER_BVZERO( &li->acl_authcID );
  91         BER_BVZERO( &li->acl_authcDN );
  92         BER_BVZERO( &li->acl_passwd );
  93
  94         li->acl_authmethod = LDAP_AUTH_NONE;
  95         BER_BVZERO( &li->acl_sasl_mech );
  96         li->acl_sb.sb_tls = SB_TLS_DEFAULT;
  97
  98         li->idassert_mode = LDAP_BACK_IDASSERT_LEGACY;
  99
 100         BER_BVZERO( &li->idassert_authcID );
 101         BER_BVZERO( &li->idassert_authcDN );
 102         BER_BVZERO( &li->idassert_passwd );
 103
 104         BER_BVZERO( &li->idassert_authzID );
 105
 106         li->idassert_authmethod = LDAP_AUTH_NONE;
 107         BER_BVZERO( &li->idassert_sasl_mech );
 108         li->idassert_sb.sb_tls = SB_TLS_DEFAULT;
 109
 110         /* by default, use proxyAuthz control on each operation */
 111         li->idassert_flags = LDAP_BACK_AUTH_NONE;
 112
 113         li->idassert_authz = NULL;
 114
 115         /* initialize flags */
 116         li->flags = LDAP_BACK_F_CHASE_REFERRALS;
 117
 118         /* initialize version */
 119         li->version = LDAP_VERSION3;
 120
 121         ldap_pvt_thread_mutex_init( &li->conn_mutex );
 122
 123         be->be_private = li;
 124         SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_NOLASTMOD;
 125
 126         be->be_cf_ocs = be->bd_info->bi_cf_ocs;
 127
 128         return 0;
 129 }
 130
 131 int
 132 ldap_back_db_open( BackendDB *be )
 133 {
 134         struct ldapinfo *li = (struct ldapinfo *)be->be_private;
 135
 136         Debug( LDAP_DEBUG_TRACE,
 137                 "ldap_back_db_open: URI=%s\n",
 138                 li->url != NULL ? li->url : "", 0, 0 );
 139
 140         /* by default, use proxyAuthz control on each operation */
 141         switch ( li->idassert_mode ) {
 142         case LDAP_BACK_IDASSERT_LEGACY:
 143         case LDAP_BACK_IDASSERT_SELF:
 144                 /* however, since admin connections are pooled and shared,
 145                  * only static authzIDs can be native */
 146                 li->idassert_flags &= ~LDAP_BACK_AUTH_NATIVE_AUTHZ;
 147                 break;
 148
 149         default:
 150                 break;
 151         }
 152
 153 #if 0 && defined(SLAPD_MONITOR)
 154         {
 155                 /* FIXME: disabled because namingContexts doesn't have
 156                  * a matching rule, and using an MRA filter doesn't work
 157                  * because the normalized assertion is compared to the
 158                  * non-normalized value, which in general differs from
 159                  * the normalized one.  See ITS#3406 */
 160                 struct berval   filter,
 161                                 base = BER_BVC( "cn=Databases," SLAPD_MONITOR );
 162                 struct berval   vals[ 2 ];
 163                 Attribute       a = { 0 };
 164
 165                 filter.bv_len = STRLENOF( "(&(namingContexts:distinguishedNameMatch:=)(monitoredInfo=ldap))" )
 166                         + be->be_nsuffix[ 0 ].bv_len;
 167                 filter.bv_val = ch_malloc( filter.bv_len + 1 );
 168                 snprintf( filter.bv_val, filter.bv_len + 1,
 169                                 "(&(namingContexts:distinguishedNameMatch:=%s)(monitoredInfo=ldap))",
 170                                 be->be_nsuffix[ 0 ].bv_val );
 171
 172                 a.a_desc = slap_schema.si_ad_labeledURI;
 173                 ber_str2bv( li->url, 0, 0, &vals[ 0 ] );
 174                 BER_BVZERO( &vals[ 1 ] );
 175                 a.a_vals = vals;
 176                 a.a_nvals = vals;
 177                 if ( monitor_back_register_entry_attrs( NULL, &a, NULL, &base, LDAP_SCOPE_SUBTREE, &filter ) ) {
 178                         /* error */
 179                 }
 180
 181                 ch_free( filter.bv_val );
 182         }
 183 #endif /* SLAPD_MONITOR */
 184
 185         if ( li->flags & LDAP_BACK_F_SUPPORT_T_F_DISCOVER ) {
 186                 int             rc;
 187
 188                 li->flags &= ~LDAP_BACK_F_SUPPORT_T_F_DISCOVER;
 189
 190                 rc = slap_discover_feature( li->url, li->version,
 191                                 slap_schema.si_ad_supportedFeatures->ad_cname.bv_val,
 192                                 LDAP_FEATURE_ABSOLUTE_FILTERS );
 193                 if ( rc == LDAP_COMPARE_TRUE ) {
 194                         li->flags |= LDAP_BACK_F_SUPPORT_T_F;
 195                 }
 196         }
 197
 198         return 0;
 199 }
 200
 201 void
 202 ldap_back_conn_free( void *v_lc )
 203 {
 204         struct ldapconn *lc = v_lc;
 205
 206         ldap_unbind_ext_s( lc->lc_ld, NULL, NULL );
 207         if ( !BER_BVISNULL( &lc->lc_bound_ndn ) ) {
 208                 ch_free( lc->lc_bound_ndn.bv_val );
 209         }
 210         if ( !BER_BVISNULL( &lc->lc_cred ) ) {
 211                 memset( lc->lc_cred.bv_val, 0, lc->lc_cred.bv_len );
 212                 ch_free( lc->lc_cred.bv_val );
 213         }
 214         if ( !BER_BVISNULL( &lc->lc_local_ndn ) ) {
 215                 ch_free( lc->lc_local_ndn.bv_val );
 216         }
 217         ldap_pvt_thread_mutex_destroy( &lc->lc_mutex );
 218         ch_free( lc );
 219 }
 220
 221 int
 222 ldap_back_db_destroy(
 223     Backend     *be
 224 )
 225 {
 226         struct ldapinfo *li;
 227
 228         if ( be->be_private ) {
 229                 li = ( struct ldapinfo * )be->be_private;
 230
 231                 ldap_pvt_thread_mutex_lock( &li->conn_mutex );
 232
 233                 if ( li->url != NULL ) {
 234                         ch_free( li->url );
 235                         li->url = NULL;
 236                 }
 237                 if ( li->lud ) {
 238                         ldap_free_urldesc( li->lud );
 239                         li->lud = NULL;
 240                 }
 241                 if ( !BER_BVISNULL( &li->acl_authcID ) ) {
 242                         ch_free( li->acl_authcID.bv_val );
 243                         BER_BVZERO( &li->acl_authcID );
 244                 }
 245                 if ( !BER_BVISNULL( &li->acl_authcDN ) ) {
 246                         ch_free( li->acl_authcDN.bv_val );
 247                         BER_BVZERO( &li->acl_authcDN );
 248                 }
 249                 if ( !BER_BVISNULL( &li->acl_passwd ) ) {
 250                         ch_free( li->acl_passwd.bv_val );
 251                         BER_BVZERO( &li->acl_passwd );
 252                 }
 253                 if ( !BER_BVISNULL( &li->acl_sasl_mech ) ) {
 254                         ch_free( li->acl_sasl_mech.bv_val );
 255                         BER_BVZERO( &li->acl_sasl_mech );
 256                 }
 257                 if ( !BER_BVISNULL( &li->acl_sasl_realm ) ) {
 258                         ch_free( li->acl_sasl_realm.bv_val );
 259                         BER_BVZERO( &li->acl_sasl_realm );
 260                 }
 261                 if ( !BER_BVISNULL( &li->idassert_authcID ) ) {
 262                         ch_free( li->idassert_authcID.bv_val );
 263                         BER_BVZERO( &li->idassert_authcID );
 264                 }
 265                 if ( !BER_BVISNULL( &li->idassert_authcDN ) ) {
 266                         ch_free( li->idassert_authcDN.bv_val );
 267                         BER_BVZERO( &li->idassert_authcDN );
 268                 }
 269                 if ( !BER_BVISNULL( &li->idassert_passwd ) ) {
 270                         ch_free( li->idassert_passwd.bv_val );
 271                         BER_BVZERO( &li->idassert_passwd );
 272                 }
 273                 if ( !BER_BVISNULL( &li->idassert_authzID ) ) {
 274                         ch_free( li->idassert_authzID.bv_val );
 275                         BER_BVZERO( &li->idassert_authzID );
 276                 }
 277                 if ( !BER_BVISNULL( &li->idassert_sasl_mech ) ) {
 278                         ch_free( li->idassert_sasl_mech.bv_val );
 279                         BER_BVZERO( &li->idassert_sasl_mech );
 280                 }
 281                 if ( !BER_BVISNULL( &li->idassert_sasl_realm ) ) {
 282                         ch_free( li->idassert_sasl_realm.bv_val );
 283                         BER_BVZERO( &li->idassert_sasl_realm );
 284                 }
 285                 if ( li->conntree ) {
 286                         avl_free( li->conntree, ldap_back_conn_free );
 287                 }
 288
 289                 ldap_pvt_thread_mutex_unlock( &li->conn_mutex );
 290                 ldap_pvt_thread_mutex_destroy( &li->conn_mutex );
 291         }
 292
 293         ch_free( be->be_private );
 294
 295         return 0;
 296 }
 297
 298 #if SLAPD_LDAP == SLAPD_MOD_DYNAMIC
 299
 300 /* conditionally define the init_module() function */
 301 SLAP_BACKEND_INIT_MODULE( ldap )
 302
 303 #endif /* SLAPD_LDAP == SLAPD_MOD_DYNAMIC */
 304