git.sur5r.net Git - openldap/blob - servers/slapd/root_dse.c

   1 /* root_dse.c - Provides the Root DSA-Specific Entry */
   2 /* $OpenLDAP$ */
   3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   4  *
   5  * Copyright 1999-2005 The OpenLDAP Foundation.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16
  17 #include "portable.h"
  18
  19 #include <stdio.h>
  20
  21 #include <ac/string.h>
  22
  23 #include "slap.h"
  24 #include <ldif.h>
  25 #include "lber_pvt.h"
  26
  27 #ifdef LDAP_SLAPI
  28 #include "slapi/slapi.h"
  29 #endif
  30
  31 static struct berval supportedFeatures[] = {
  32         BER_BVC(LDAP_FEATURE_ALL_OP_ATTRS),                     /* All Op Attrs (+) */
  33         BER_BVC(LDAP_FEATURE_OBJECTCLASS_ATTRS),        /* OCs in Attrs List (@class) */
  34         BER_BVC(LDAP_FEATURE_ABSOLUTE_FILTERS),         /* (&) and (|) search filters */
  35         BER_BVC(LDAP_FEATURE_LANGUAGE_TAG_OPTIONS), /* Language Tag Options */
  36         BER_BVC(LDAP_FEATURE_LANGUAGE_RANGE_OPTIONS),/* Language Range Options */
  37 #ifdef LDAP_FEATURE_SUBORDINATE_SCOPE
  38         BER_BVC(LDAP_FEATURE_SUBORDINATE_SCOPE),        /* "children" search scope */
  39 #endif
  40 #ifdef LDAP_FEATURE_MODIFY_INCREMENT
  41         BER_BVC(LDAP_FEATURE_MODIFY_INCREMENT),         /* Modify/increment */
  42 #endif
  43         {0,NULL}
  44 };
  45
  46 static Entry    *usr_attr = NULL;
  47
  48 int
  49 root_dse_info(
  50         Connection *conn,
  51         Entry **entry,
  52         const char **text )
  53 {
  54         Entry           *e;
  55         struct berval val;
  56 #ifdef LDAP_SLAPI
  57         struct berval *bv;
  58 #endif
  59         int             i, j;
  60         char ** supportedSASLMechanisms;
  61         BackendDB *be;
  62
  63         AttributeDescription *ad_structuralObjectClass
  64                 = slap_schema.si_ad_structuralObjectClass;
  65         AttributeDescription *ad_objectClass
  66                 = slap_schema.si_ad_objectClass;
  67         AttributeDescription *ad_namingContexts
  68                 = slap_schema.si_ad_namingContexts;
  69 #ifdef LDAP_SLAPI
  70         AttributeDescription *ad_supportedExtension
  71                 = slap_schema.si_ad_supportedExtension;
  72 #endif
  73         AttributeDescription *ad_supportedLDAPVersion
  74                 = slap_schema.si_ad_supportedLDAPVersion;
  75         AttributeDescription *ad_supportedSASLMechanisms
  76                 = slap_schema.si_ad_supportedSASLMechanisms;
  77         AttributeDescription *ad_supportedFeatures
  78                 = slap_schema.si_ad_supportedFeatures;
  79         AttributeDescription *ad_monitorContext
  80                 = slap_schema.si_ad_monitorContext;
  81         AttributeDescription *ad_configContext
  82                 = slap_schema.si_ad_configContext;
  83         AttributeDescription *ad_ref
  84                 = slap_schema.si_ad_ref;
  85
  86         e = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
  87
  88         if( e == NULL ) {
  89                 Debug( LDAP_DEBUG_ANY,
  90                         "root_dse_info: SLAP_CALLOC failed", 0, 0, 0 );
  91                 return LDAP_OTHER;
  92         }
  93
  94         e->e_attrs = NULL;
  95         e->e_name.bv_val = ch_strdup( LDAP_ROOT_DSE );
  96         e->e_name.bv_len = sizeof( LDAP_ROOT_DSE )-1;
  97         e->e_nname.bv_val = ch_strdup( LDAP_ROOT_DSE );
  98         e->e_nname.bv_len = sizeof( LDAP_ROOT_DSE )-1;
  99
 100         /* the DN is an empty string so no pretty/normalization is needed */
 101         assert( !e->e_name.bv_len );
 102         assert( !e->e_nname.bv_len );
 103
 104         e->e_private = NULL;
 105
 106         BER_BVSTR( &val, "top" );
 107         if( attr_merge_one( e, ad_objectClass, &val, NULL ) ) {
 108                 return LDAP_OTHER;
 109         }
 110
 111         BER_BVSTR( &val, "OpenLDAProotDSE" );
 112         if( attr_merge_one( e, ad_objectClass, &val, NULL ) ) {
 113                 return LDAP_OTHER;
 114         }
 115         if( attr_merge_one( e, ad_structuralObjectClass, &val, NULL ) ) {
 116                 return LDAP_OTHER;
 117         }
 118
 119         LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
 120                 if ( be->be_suffix == NULL
 121                                 || be->be_nsuffix == NULL ) {
 122                         /* no suffix! */
 123                         continue;
 124                 }
 125                 if ( SLAP_MONITOR( be )) {
 126                         if( attr_merge_one( e, ad_monitorContext,
 127                                         &be->be_suffix[0],
 128                                         &be->be_nsuffix[0] ) )
 129                         {
 130                                 return LDAP_OTHER;
 131                         }
 132                         continue;
 133                 }
 134                 if ( SLAP_CONFIG( be )) {
 135                         if( attr_merge_one( e, ad_configContext,
 136                                         &be->be_suffix[0],
 137                                         & be->be_nsuffix[0] ) )
 138                         {
 139                                 return LDAP_OTHER;
 140                         }
 141                         continue;
 142                 }
 143                 if ( SLAP_GLUE_SUBORDINATE( be ) && !SLAP_GLUE_ADVERTISE( be ) ) {
 144                         continue;
 145                 }
 146                 for ( j = 0; be->be_suffix[j].bv_val != NULL; j++ ) {
 147                         if( attr_merge_one( e, ad_namingContexts,
 148                                         &be->be_suffix[j],
 149                                         &be->be_nsuffix[0] ) )
 150                         {
 151                                 return LDAP_OTHER;
 152                         }
 153                 }
 154         }
 155
 156         /* altServer unsupported */
 157
 158         /* supportedControl */
 159         if ( controls_root_dse_info( e ) != 0 ) {
 160                 return LDAP_OTHER;
 161         }
 162
 163         /* supportedExtension */
 164         if ( exop_root_dse_info( e ) != 0 ) {
 165                 return LDAP_OTHER;
 166         }
 167
 168 #ifdef LDAP_SLAPI
 169         /* netscape supportedExtension */
 170         for ( i = 0; (bv = slapi_int_get_supported_extop(i)) != NULL; i++ ) {
 171                 if( attr_merge_one( e, ad_supportedExtension, bv, NULL ) ) {
 172                         return LDAP_OTHER;
 173                 }
 174         }
 175 #endif /* LDAP_SLAPI */
 176
 177         /* supportedFeatures */
 178         if( attr_merge( e, ad_supportedFeatures, supportedFeatures, NULL ) ) {
 179                 return LDAP_OTHER;
 180         }
 181
 182         /* supportedLDAPVersion */
 183                 /* don't publish version 2 as we don't really support it
 184                  * (even when configured to accept version 2 Bind requests)
 185                  * and the value would never be used by true LDAPv2 (or LDAPv3)
 186                  * clients.
 187                  */
 188         for ( i=LDAP_VERSION3; i<=LDAP_VERSION_MAX; i++ ) {
 189                 char buf[BUFSIZ];
 190                 snprintf(buf, sizeof buf, "%d", i);
 191                 val.bv_val = buf;
 192                 val.bv_len = strlen( val.bv_val );
 193                 if( attr_merge_one( e, ad_supportedLDAPVersion, &val, NULL ) ) {
 194                         return LDAP_OTHER;
 195                 }
 196         }
 197
 198         /* supportedSASLMechanism */
 199         supportedSASLMechanisms = slap_sasl_mechs( conn );
 200
 201         if( supportedSASLMechanisms != NULL ) {
 202                 for ( i=0; supportedSASLMechanisms[i] != NULL; i++ ) {
 203                         val.bv_val = supportedSASLMechanisms[i];
 204                         val.bv_len = strlen( val.bv_val );
 205                         if( attr_merge_one( e, ad_supportedSASLMechanisms, &val, NULL ) ) {
 206                                 return LDAP_OTHER;
 207                         }
 208                 }
 209                 ldap_charray_free( supportedSASLMechanisms );
 210         }
 211
 212         if ( default_referral != NULL ) {
 213                 if( attr_merge( e, ad_ref, default_referral, NULL /* FIXME */ ) ) {
 214                         return LDAP_OTHER;
 215                 }
 216         }
 217
 218         if( usr_attr != NULL) {
 219                 Attribute *a;
 220                 for( a = usr_attr->e_attrs; a != NULL; a = a->a_next ) {
 221                         if( attr_merge( e, a->a_desc, a->a_vals,
 222                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 223                         {
 224                                 return LDAP_OTHER;
 225                         }
 226                 }
 227         }
 228
 229         *entry = e;
 230         return LDAP_SUCCESS;
 231 }
 232
 233 /*
 234  * Read the entries specified in fname and merge the attributes
 235  * to the user defined rootDSE. Note thaat if we find any errors
 236  * what so ever, we will discard the entire entries, print an
 237  * error message and return.
 238  */
 239 int read_root_dse_file( const char *fname )
 240 {
 241         struct LDIFFP   *fp;
 242         int rc = 0, lineno = 0, lmax = 0;
 243         char    *buf = NULL;
 244
 245         if ( (fp = ldif_open( fname, "r" )) == NULL ) {
 246                 Debug( LDAP_DEBUG_ANY,
 247                         "could not open rootdse attr file \"%s\" - absolute path?\n",
 248                         fname, 0, 0 );
 249                 perror( fname );
 250                 return EXIT_FAILURE;
 251         }
 252
 253         usr_attr = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
 254         if( usr_attr == NULL ) {
 255                 Debug( LDAP_DEBUG_ANY,
 256                         "read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
 257                 ldif_close( fp );
 258                 return LDAP_OTHER;
 259         }
 260         usr_attr->e_attrs = NULL;
 261
 262         while( ldif_read_record( fp, &lineno, &buf, &lmax ) ) {
 263                 Entry *e = str2entry( buf );
 264                 Attribute *a;
 265
 266                 if( e == NULL ) {
 267                         fprintf( stderr, "root_dse: could not parse entry (line=%d)\n",
 268                                 lineno );
 269                         rc = EXIT_FAILURE;
 270                         break;
 271                 }
 272
 273                 /* make sure the DN is the empty DN */
 274                 if( e->e_nname.bv_len ) {
 275                         fprintf( stderr,
 276                                 "root_dse: invalid rootDSE - dn=\"%s\" (line=%d)\n",
 277                                 e->e_dn, lineno );
 278                         entry_free( e );
 279                         rc = EXIT_FAILURE;
 280                         break;
 281                 }
 282
 283                 /*
 284                  * we found a valid entry, so walk thru all the attributes in the
 285                  * entry, and add each attribute type and description to the
 286                  * usr_attr entry
 287                  */
 288
 289                 for(a = e->e_attrs; a != NULL; a = a->a_next) {
 290                         if( attr_merge( usr_attr, a->a_desc, a->a_vals,
 291                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 292                         {
 293                                 rc = LDAP_OTHER;
 294                                 break;
 295                         }
 296                 }
 297
 298                 entry_free( e );
 299                 if (rc) break;
 300         }
 301
 302         if (rc) {
 303                 entry_free( usr_attr );
 304                 usr_attr = NULL;
 305         }
 306
 307         ch_free( buf );
 308
 309         ldif_close( fp );
 310
 311         Debug(LDAP_DEBUG_CONFIG, "rootDSE file %s read.\n", fname, 0, 0);
 312         return rc;
 313 }
 314
 315 int
 316 slap_discover_feature(
 317         const char      *uri,
 318         int             version,
 319         const char      *attr,
 320         const char      *val )
 321 {
 322         LDAP            *ld;
 323         LDAPMessage     *res = NULL, *entry;
 324         int             rc, i;
 325         struct berval   cred = BER_BVC( "" ),
 326                         bv_val,
 327                         **values = NULL;
 328         char            *attrs[ 2 ] = { NULL, NULL };
 329
 330         ber_str2bv( val, 0, 0, &bv_val );
 331         attrs[ 0 ] = (char *) attr;
 332
 333         rc = ldap_initialize( &ld, uri );
 334         if ( rc != LDAP_SUCCESS ) {
 335                 return rc;
 336         }
 337
 338         rc = ldap_set_option( ld, LDAP_OPT_PROTOCOL_VERSION, &version );
 339         if ( rc != LDAP_SUCCESS ) {
 340                 goto done;
 341         }
 342
 343         rc = ldap_sasl_bind_s( ld, "", LDAP_SASL_SIMPLE,
 344                         &cred, NULL, NULL, NULL );
 345         if ( rc != LDAP_SUCCESS ) {
 346                 goto done;
 347         }
 348
 349         rc = ldap_search_ext_s( ld, "", LDAP_SCOPE_BASE, "(objectClass=*)",
 350                         attrs, 0, NULL, NULL, NULL, 0, &res );
 351         if ( rc != LDAP_SUCCESS ) {
 352                 goto done;
 353         }
 354
 355         entry = ldap_first_entry( ld, res );
 356         if ( entry == NULL ) {
 357                 goto done;
 358         }
 359
 360         values = ldap_get_values_len( ld, entry, attrs[ 0 ] );
 361         if ( values == NULL ) {
 362                 rc = LDAP_NO_SUCH_ATTRIBUTE;
 363                 goto done;
 364         }
 365
 366         for ( i = 0; values[ i ] != NULL; i++ ) {
 367                 if ( bvmatch( &bv_val, values[ i ] ) ) {
 368                         rc = LDAP_COMPARE_TRUE;
 369                         goto done;
 370                 }
 371         }
 372
 373         rc = LDAP_COMPARE_FALSE;
 374
 375 done:;
 376         if ( values != NULL ) {
 377                 ldap_value_free_len( values );
 378         }
 379
 380         if ( res != NULL ) {
 381                 ldap_msgfree( res );
 382         }
 383
 384         ldap_unbind_ext( ld, NULL, NULL );
 385
 386         return rc;
 387 }
 388