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
  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_ref
  77                 = slap_schema.si_ad_ref;
  78
  79         vals[1].bv_val = NULL;
  80         nvals[1].bv_val = NULL;
  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         vals[0].bv_val = "top";
 103         vals[0].bv_len = sizeof("top")-1;
 104         if( attr_merge( e, ad_objectClass, vals, NULL ) ) {
 105                 return LDAP_OTHER;
 106         }
 107
 108         vals[0].bv_val = "OpenLDAProotDSE";
 109         vals[0].bv_len = sizeof("OpenLDAProotDSE")-1;
 110         if( attr_merge( e, ad_objectClass, vals, NULL ) ) {
 111                 return LDAP_OTHER;
 112         }
 113         if( attr_merge( e, ad_structuralObjectClass, vals, NULL ) ) {
 114                 return LDAP_OTHER;
 115         }
 116
 117         for ( i = 0; i < nbackends; i++ ) {
 118                 if ( backends[i].be_suffix == NULL
 119                                 || backends[i].be_nsuffix == NULL ) {
 120                         /* no suffix! */
 121                         continue;
 122                 }
 123                 if ( SLAP_MONITOR( &backends[i] )) {
 124                         vals[0] = backends[i].be_suffix[0];
 125                         nvals[0] = backends[i].be_nsuffix[0];
 126                         if( attr_merge( e, ad_monitorContext, vals, nvals ) ) {
 127                                 return LDAP_OTHER;
 128                         }
 129                         continue;
 130                 }
 131                 if ( SLAP_GLUE_SUBORDINATE( &backends[i] ) && !SLAP_GLUE_ADVERTISE( &backends[i] ) ) {
 132                         continue;
 133                 }
 134                 for ( j = 0; backends[i].be_suffix[j].bv_val != NULL; j++ ) {
 135                         vals[0] = backends[i].be_suffix[j];
 136                         nvals[0] = backends[i].be_nsuffix[0];
 137                         if( attr_merge( e, ad_namingContexts, vals, nvals ) ) {
 138                                 return LDAP_OTHER;
 139                         }
 140                 }
 141         }
 142
 143         /* altServer unsupported */
 144
 145         /* supportedControl */
 146         if ( controls_root_dse_info( e ) != 0 ) {
 147                 return LDAP_OTHER;
 148         }
 149
 150         /* supportedExtension */
 151         if ( exop_root_dse_info( e ) != 0 ) {
 152                 return LDAP_OTHER;
 153         }
 154
 155 #ifdef LDAP_SLAPI
 156         /* netscape supportedExtension */
 157         for ( i = 0; (bv = slapi_int_get_supported_extop(i)) != NULL; i++ ) {
 158                 vals[0] = *bv;
 159                 if( attr_merge( e, ad_supportedExtension, vals, NULL )) {
 160                         return LDAP_OTHER;
 161                 }
 162         }
 163 #endif /* LDAP_SLAPI */
 164
 165         /* supportedFeatures */
 166         if( attr_merge( e, ad_supportedFeatures, supportedFeatures, NULL ) ) {
 167                 return LDAP_OTHER;
 168         }
 169
 170         /* supportedLDAPVersion */
 171         for ( i=LDAP_VERSION_MIN; i<=LDAP_VERSION_MAX; i++ ) {
 172                 char buf[BUFSIZ];
 173                 if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
 174                         ( i < LDAP_VERSION3 ) )
 175                 {
 176                         /* version 2 and lower are disallowed */
 177                         continue;
 178                 }
 179                 snprintf(buf, sizeof buf, "%d", i);
 180                 vals[0].bv_val = buf;
 181                 vals[0].bv_len = strlen( vals[0].bv_val );
 182                 if( attr_merge( e, ad_supportedLDAPVersion, vals, NULL ) ) {
 183                         return LDAP_OTHER;
 184                 }
 185         }
 186
 187         /* supportedSASLMechanism */
 188         supportedSASLMechanisms = slap_sasl_mechs( conn );
 189
 190         if( supportedSASLMechanisms != NULL ) {
 191                 for ( i=0; supportedSASLMechanisms[i] != NULL; i++ ) {
 192                         vals[0].bv_val = supportedSASLMechanisms[i];
 193                         vals[0].bv_len = strlen( vals[0].bv_val );
 194                         if( attr_merge( e, ad_supportedSASLMechanisms, vals, NULL ) ) {
 195                                 return LDAP_OTHER;
 196                         }
 197                 }
 198                 ldap_charray_free( supportedSASLMechanisms );
 199         }
 200
 201         if ( default_referral != NULL ) {
 202                 if( attr_merge( e, ad_ref, default_referral, NULL /* FIXME */ ) ) {
 203                         return LDAP_OTHER;
 204                 }
 205         }
 206
 207         if( usr_attr != NULL) {
 208                 Attribute *a;
 209                 for( a = usr_attr->e_attrs; a != NULL; a = a->a_next ) {
 210                         if( attr_merge( e, a->a_desc, a->a_vals,
 211                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 212                         {
 213                                 return LDAP_OTHER;
 214                         }
 215                 }
 216         }
 217
 218         *entry = e;
 219         return LDAP_SUCCESS;
 220 }
 221
 222 /*
 223  * Read the entries specified in fname and merge the attributes
 224  * to the user defined rootDSE. Note thaat if we find any errors
 225  * what so ever, we will discard the entire entries, print an
 226  * error message and return.
 227  */
 228 int read_root_dse_file( const char *fname )
 229 {
 230         FILE    *fp;
 231         int rc = 0, lineno = 0, lmax = 0;
 232         char    *buf = NULL;
 233
 234         if ( (fp = fopen( fname, "r" )) == NULL ) {
 235                 Debug( LDAP_DEBUG_ANY,
 236                         "could not open rootdse attr file \"%s\" - absolute path?\n",
 237                         fname, 0, 0 );
 238                 perror( fname );
 239                 return EXIT_FAILURE;
 240         }
 241
 242         usr_attr = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
 243         if( usr_attr == NULL ) {
 244                 Debug( LDAP_DEBUG_ANY,
 245                         "read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
 246                 fclose( fp );
 247                 return LDAP_OTHER;
 248         }
 249         usr_attr->e_attrs = NULL;
 250
 251         while( ldif_read_record( fp, &lineno, &buf, &lmax ) ) {
 252                 Entry *e = str2entry( buf );
 253                 Attribute *a;
 254
 255                 if( e == NULL ) {
 256                         fprintf( stderr, "root_dse: could not parse entry (line=%d)\n",
 257                                 lineno );
 258                         rc = EXIT_FAILURE;
 259                         break;
 260                 }
 261
 262                 /* make sure the DN is the empty DN */
 263                 if( e->e_nname.bv_len ) {
 264                         fprintf( stderr,
 265                                 "root_dse: invalid rootDSE - dn=\"%s\" (line=%d)\n",
 266                                 e->e_dn, lineno );
 267                         entry_free( e );
 268                         rc = EXIT_FAILURE;
 269                         break;
 270                 }
 271
 272                 /*
 273                  * we found a valid entry, so walk thru all the attributes in the
 274                  * entry, and add each attribute type and description to the
 275                  * usr_attr entry
 276                  */
 277
 278                 for(a = e->e_attrs; a != NULL; a = a->a_next) {
 279                         if( attr_merge( usr_attr, a->a_desc, a->a_vals,
 280                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 281                         {
 282                                 rc = LDAP_OTHER;
 283                                 break;
 284                         }
 285                 }
 286
 287                 entry_free( e );
 288                 if (rc) break;
 289         }
 290
 291         if (rc) {
 292                 entry_free( usr_attr );
 293                 usr_attr = NULL;
 294         }
 295
 296         ch_free( buf );
 297
 298         fclose( fp );
 299
 300         Debug(LDAP_DEBUG_CONFIG, "rootDSE file %s read.\n", fname, 0, 0);
 301         return rc;
 302 }