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 vals[2], *bv;
  56         struct berval nvals[2];
  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         vals[1].bv_val = NULL;
  83         nvals[1].bv_val = NULL;
  84
  85         e = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
  86
  87         if( e == NULL ) {
  88                 Debug( LDAP_DEBUG_ANY,
  89                         "root_dse_info: SLAP_CALLOC failed", 0, 0, 0 );
  90                 return LDAP_OTHER;
  91         }
  92
  93         e->e_attrs = NULL;
  94         e->e_name.bv_val = ch_strdup( LDAP_ROOT_DSE );
  95         e->e_name.bv_len = sizeof( LDAP_ROOT_DSE )-1;
  96         e->e_nname.bv_val = ch_strdup( LDAP_ROOT_DSE );
  97         e->e_nname.bv_len = sizeof( LDAP_ROOT_DSE )-1;
  98
  99         /* the DN is an empty string so no pretty/normalization is needed */
 100         assert( !e->e_name.bv_len );
 101         assert( !e->e_nname.bv_len );
 102
 103         e->e_private = NULL;
 104
 105         vals[0].bv_val = "top";
 106         vals[0].bv_len = sizeof("top")-1;
 107         if( attr_merge( e, ad_objectClass, vals, NULL ) ) {
 108                 return LDAP_OTHER;
 109         }
 110
 111         vals[0].bv_val = "OpenLDAProotDSE";
 112         vals[0].bv_len = sizeof("OpenLDAProotDSE")-1;
 113         if( attr_merge( e, ad_objectClass, vals, NULL ) ) {
 114                 return LDAP_OTHER;
 115         }
 116         if( attr_merge( e, ad_structuralObjectClass, vals, NULL ) ) {
 117                 return LDAP_OTHER;
 118         }
 119
 120         LDAP_STAILQ_FOREACH( be, &backendDB, be_next ) {
 121                 if ( be->be_suffix == NULL
 122                                 || be->be_nsuffix == NULL ) {
 123                         /* no suffix! */
 124                         continue;
 125                 }
 126                 if ( SLAP_MONITOR( be )) {
 127                         vals[0] = be->be_suffix[0];
 128                         nvals[0] = be->be_nsuffix[0];
 129                         if( attr_merge( e, ad_monitorContext, vals, nvals ) ) {
 130                                 return LDAP_OTHER;
 131                         }
 132                         continue;
 133                 }
 134                 if ( SLAP_CONFIG( be )) {
 135                         vals[0] = be->be_suffix[0];
 136                         nvals[0] = be->be_nsuffix[0];
 137                         if( attr_merge( e, ad_configContext, vals, nvals ) ) {
 138                                 return LDAP_OTHER;
 139                         }
 140                         continue;
 141                 }
 142                 if ( SLAP_GLUE_SUBORDINATE( be ) && !SLAP_GLUE_ADVERTISE( be ) ) {
 143                         continue;
 144                 }
 145                 for ( j = 0; be->be_suffix[j].bv_val != NULL; j++ ) {
 146                         vals[0] = be->be_suffix[j];
 147                         nvals[0] = be->be_nsuffix[0];
 148                         if( attr_merge( e, ad_namingContexts, vals, nvals ) ) {
 149                                 return LDAP_OTHER;
 150                         }
 151                 }
 152         }
 153
 154         /* altServer unsupported */
 155
 156         /* supportedControl */
 157         if ( controls_root_dse_info( e ) != 0 ) {
 158                 return LDAP_OTHER;
 159         }
 160
 161         /* supportedExtension */
 162         if ( exop_root_dse_info( e ) != 0 ) {
 163                 return LDAP_OTHER;
 164         }
 165
 166 #ifdef LDAP_SLAPI
 167         /* netscape supportedExtension */
 168         for ( i = 0; (bv = slapi_int_get_supported_extop(i)) != NULL; i++ ) {
 169                 vals[0] = *bv;
 170                 if( attr_merge( e, ad_supportedExtension, vals, NULL )) {
 171                         return LDAP_OTHER;
 172                 }
 173         }
 174 #endif /* LDAP_SLAPI */
 175
 176         /* supportedFeatures */
 177         if( attr_merge( e, ad_supportedFeatures, supportedFeatures, NULL ) ) {
 178                 return LDAP_OTHER;
 179         }
 180
 181         /* supportedLDAPVersion */
 182         for ( i=LDAP_VERSION_MIN; i<=LDAP_VERSION_MAX; i++ ) {
 183                 char buf[BUFSIZ];
 184                 if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
 185                         ( i < LDAP_VERSION3 ) )
 186                 {
 187                         /* version 2 and lower are disallowed */
 188                         continue;
 189                 }
 190                 snprintf(buf, sizeof buf, "%d", i);
 191                 vals[0].bv_val = buf;
 192                 vals[0].bv_len = strlen( vals[0].bv_val );
 193                 if( attr_merge( e, ad_supportedLDAPVersion, vals, 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                         vals[0].bv_val = supportedSASLMechanisms[i];
 204                         vals[0].bv_len = strlen( vals[0].bv_val );
 205                         if( attr_merge( e, ad_supportedSASLMechanisms, vals, 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         FILE    *fp;
 242         int rc = 0, lineno = 0, lmax = 0;
 243         char    *buf = NULL;
 244
 245         if ( (fp = fopen( 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                 fclose( 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         fclose( fp );
 310
 311         Debug(LDAP_DEBUG_CONFIG, "rootDSE file %s read.\n", fname, 0, 0);
 312         return rc;
 313 }