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_configContext
  77                 = slap_schema.si_ad_configContext;
  78         AttributeDescription *ad_ref
  79                 = slap_schema.si_ad_ref;
  80
  81         vals[1].bv_val = NULL;
  82         nvals[1].bv_val = NULL;
  83
  84         e = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
  85
  86         if( e == NULL ) {
  87                 Debug( LDAP_DEBUG_ANY,
  88                         "root_dse_info: SLAP_CALLOC failed", 0, 0, 0 );
  89                 return LDAP_OTHER;
  90         }
  91
  92         e->e_attrs = NULL;
  93         e->e_name.bv_val = ch_strdup( LDAP_ROOT_DSE );
  94         e->e_name.bv_len = sizeof( LDAP_ROOT_DSE )-1;
  95         e->e_nname.bv_val = ch_strdup( LDAP_ROOT_DSE );
  96         e->e_nname.bv_len = sizeof( LDAP_ROOT_DSE )-1;
  97
  98         /* the DN is an empty string so no pretty/normalization is needed */
  99         assert( !e->e_name.bv_len );
 100         assert( !e->e_nname.bv_len );
 101
 102         e->e_private = NULL;
 103
 104         vals[0].bv_val = "top";
 105         vals[0].bv_len = sizeof("top")-1;
 106         if( attr_merge( e, ad_objectClass, vals, NULL ) ) {
 107                 return LDAP_OTHER;
 108         }
 109
 110         vals[0].bv_val = "OpenLDAProotDSE";
 111         vals[0].bv_len = sizeof("OpenLDAProotDSE")-1;
 112         if( attr_merge( e, ad_objectClass, vals, NULL ) ) {
 113                 return LDAP_OTHER;
 114         }
 115         if( attr_merge( e, ad_structuralObjectClass, vals, NULL ) ) {
 116                 return LDAP_OTHER;
 117         }
 118
 119         for ( i = 0; i < nbackends; i++ ) {
 120                 if ( backends[i].be_suffix == NULL
 121                                 || backends[i].be_nsuffix == NULL ) {
 122                         /* no suffix! */
 123                         continue;
 124                 }
 125                 if ( SLAP_MONITOR( &backends[i] )) {
 126                         vals[0] = backends[i].be_suffix[0];
 127                         nvals[0] = backends[i].be_nsuffix[0];
 128                         if( attr_merge( e, ad_monitorContext, vals, nvals ) ) {
 129                                 return LDAP_OTHER;
 130                         }
 131                         continue;
 132                 }
 133                 if ( SLAP_CONFIG( &backends[i] )) {
 134                         vals[0] = backends[i].be_suffix[0];
 135                         nvals[0] = backends[i].be_nsuffix[0];
 136                         if( attr_merge( e, ad_configContext, vals, nvals ) ) {
 137                                 return LDAP_OTHER;
 138                         }
 139                         continue;
 140                 }
 141                 if ( SLAP_GLUE_SUBORDINATE( &backends[i] ) && !SLAP_GLUE_ADVERTISE( &backends[i] ) ) {
 142                         continue;
 143                 }
 144                 for ( j = 0; backends[i].be_suffix[j].bv_val != NULL; j++ ) {
 145                         vals[0] = backends[i].be_suffix[j];
 146                         nvals[0] = backends[i].be_nsuffix[0];
 147                         if( attr_merge( e, ad_namingContexts, vals, nvals ) ) {
 148                                 return LDAP_OTHER;
 149                         }
 150                 }
 151         }
 152
 153         /* altServer unsupported */
 154
 155         /* supportedControl */
 156         if ( controls_root_dse_info( e ) != 0 ) {
 157                 return LDAP_OTHER;
 158         }
 159
 160         /* supportedExtension */
 161         if ( exop_root_dse_info( e ) != 0 ) {
 162                 return LDAP_OTHER;
 163         }
 164
 165 #ifdef LDAP_SLAPI
 166         /* netscape supportedExtension */
 167         for ( i = 0; (bv = slapi_int_get_supported_extop(i)) != NULL; i++ ) {
 168                 vals[0] = *bv;
 169                 if( attr_merge( e, ad_supportedExtension, vals, NULL )) {
 170                         return LDAP_OTHER;
 171                 }
 172         }
 173 #endif /* LDAP_SLAPI */
 174
 175         /* supportedFeatures */
 176         if( attr_merge( e, ad_supportedFeatures, supportedFeatures, NULL ) ) {
 177                 return LDAP_OTHER;
 178         }
 179
 180         /* supportedLDAPVersion */
 181         for ( i=LDAP_VERSION_MIN; i<=LDAP_VERSION_MAX; i++ ) {
 182                 char buf[BUFSIZ];
 183                 if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
 184                         ( i < LDAP_VERSION3 ) )
 185                 {
 186                         /* version 2 and lower are disallowed */
 187                         continue;
 188                 }
 189                 snprintf(buf, sizeof buf, "%d", i);
 190                 vals[0].bv_val = buf;
 191                 vals[0].bv_len = strlen( vals[0].bv_val );
 192                 if( attr_merge( e, ad_supportedLDAPVersion, vals, NULL ) ) {
 193                         return LDAP_OTHER;
 194                 }
 195         }
 196
 197         /* supportedSASLMechanism */
 198         supportedSASLMechanisms = slap_sasl_mechs( conn );
 199
 200         if( supportedSASLMechanisms != NULL ) {
 201                 for ( i=0; supportedSASLMechanisms[i] != NULL; i++ ) {
 202                         vals[0].bv_val = supportedSASLMechanisms[i];
 203                         vals[0].bv_len = strlen( vals[0].bv_val );
 204                         if( attr_merge( e, ad_supportedSASLMechanisms, vals, NULL ) ) {
 205                                 return LDAP_OTHER;
 206                         }
 207                 }
 208                 ldap_charray_free( supportedSASLMechanisms );
 209         }
 210
 211         if ( default_referral != NULL ) {
 212                 if( attr_merge( e, ad_ref, default_referral, NULL /* FIXME */ ) ) {
 213                         return LDAP_OTHER;
 214                 }
 215         }
 216
 217         if( usr_attr != NULL) {
 218                 Attribute *a;
 219                 for( a = usr_attr->e_attrs; a != NULL; a = a->a_next ) {
 220                         if( attr_merge( e, a->a_desc, a->a_vals,
 221                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 222                         {
 223                                 return LDAP_OTHER;
 224                         }
 225                 }
 226         }
 227
 228         *entry = e;
 229         return LDAP_SUCCESS;
 230 }
 231
 232 /*
 233  * Read the entries specified in fname and merge the attributes
 234  * to the user defined rootDSE. Note thaat if we find any errors
 235  * what so ever, we will discard the entire entries, print an
 236  * error message and return.
 237  */
 238 int read_root_dse_file( const char *fname )
 239 {
 240         FILE    *fp;
 241         int rc = 0, lineno = 0, lmax = 0;
 242         char    *buf = NULL;
 243
 244         if ( (fp = fopen( fname, "r" )) == NULL ) {
 245                 Debug( LDAP_DEBUG_ANY,
 246                         "could not open rootdse attr file \"%s\" - absolute path?\n",
 247                         fname, 0, 0 );
 248                 perror( fname );
 249                 return EXIT_FAILURE;
 250         }
 251
 252         usr_attr = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
 253         if( usr_attr == NULL ) {
 254                 Debug( LDAP_DEBUG_ANY,
 255                         "read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
 256                 fclose( fp );
 257                 return LDAP_OTHER;
 258         }
 259         usr_attr->e_attrs = NULL;
 260
 261         while( ldif_read_record( fp, &lineno, &buf, &lmax ) ) {
 262                 Entry *e = str2entry( buf );
 263                 Attribute *a;
 264
 265                 if( e == NULL ) {
 266                         fprintf( stderr, "root_dse: could not parse entry (line=%d)\n",
 267                                 lineno );
 268                         rc = EXIT_FAILURE;
 269                         break;
 270                 }
 271
 272                 /* make sure the DN is the empty DN */
 273                 if( e->e_nname.bv_len ) {
 274                         fprintf( stderr,
 275                                 "root_dse: invalid rootDSE - dn=\"%s\" (line=%d)\n",
 276                                 e->e_dn, lineno );
 277                         entry_free( e );
 278                         rc = EXIT_FAILURE;
 279                         break;
 280                 }
 281
 282                 /*
 283                  * we found a valid entry, so walk thru all the attributes in the
 284                  * entry, and add each attribute type and description to the
 285                  * usr_attr entry
 286                  */
 287
 288                 for(a = e->e_attrs; a != NULL; a = a->a_next) {
 289                         if( attr_merge( usr_attr, a->a_desc, a->a_vals,
 290                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 291                         {
 292                                 rc = LDAP_OTHER;
 293                                 break;
 294                         }
 295                 }
 296
 297                 entry_free( e );
 298                 if (rc) break;
 299         }
 300
 301         if (rc) {
 302                 entry_free( usr_attr );
 303                 usr_attr = NULL;
 304         }
 305
 306         ch_free( buf );
 307
 308         fclose( fp );
 309
 310         Debug(LDAP_DEBUG_CONFIG, "rootDSE file %s read.\n", fname, 0, 0);
 311         return rc;
 312 }