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