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