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 1999-2003 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.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
  38 #ifdef LDAP_DEVEL
  39         BER_BVC(LDAP_FEATURE_SUBORDINATE_SCOPE),        /* "children" search scope */
  40         BER_BVC(LDAP_FEATURE_MODIFY_INCREMENT),         /* Modify/increment */
  41 #endif
  42         {0,NULL}
  43 };
  44
  45 static Entry    *usr_attr = NULL;
  46
  47 int
  48 root_dse_info(
  49         Connection *conn,
  50         Entry **entry,
  51         const char **text )
  52 {
  53         Entry           *e;
  54         struct berval vals[2], *bv;
  55         struct berval nvals[2];
  56         int             i, j;
  57         char ** supportedSASLMechanisms;
  58
  59         AttributeDescription *ad_structuralObjectClass
  60                 = slap_schema.si_ad_structuralObjectClass;
  61         AttributeDescription *ad_objectClass
  62                 = slap_schema.si_ad_objectClass;
  63         AttributeDescription *ad_namingContexts
  64                 = slap_schema.si_ad_namingContexts;
  65         AttributeDescription *ad_supportedExtension
  66                 = slap_schema.si_ad_supportedExtension;
  67         AttributeDescription *ad_supportedLDAPVersion
  68                 = slap_schema.si_ad_supportedLDAPVersion;
  69         AttributeDescription *ad_supportedSASLMechanisms
  70                 = slap_schema.si_ad_supportedSASLMechanisms;
  71         AttributeDescription *ad_supportedFeatures
  72                 = slap_schema.si_ad_supportedFeatures;
  73         AttributeDescription *ad_monitorContext
  74                 = slap_schema.si_ad_monitorContext;
  75         AttributeDescription *ad_ref
  76                 = slap_schema.si_ad_ref;
  77
  78         vals[1].bv_val = NULL;
  79         nvals[1].bv_val = NULL;
  80
  81         e = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
  82
  83         if( e == NULL ) {
  84 #ifdef NEW_LOGGING
  85                 LDAP_LOG( OPERATION, ERR,
  86                         "root_dse_info: SLAP_CALLOC failed", 0, 0, 0 );
  87 #else
  88                 Debug( LDAP_DEBUG_ANY,
  89                         "root_dse_info: SLAP_CALLOC failed", 0, 0, 0 );
  90 #endif
  91                 return LDAP_OTHER;
  92         }
  93
  94         e->e_attrs = NULL;
  95         e->e_name.bv_val = ch_strdup( LDAP_ROOT_DSE );
  96         e->e_name.bv_len = sizeof( LDAP_ROOT_DSE )-1;
  97         e->e_nname.bv_val = ch_strdup( LDAP_ROOT_DSE );
  98         e->e_nname.bv_len = sizeof( LDAP_ROOT_DSE )-1;
  99
 100         /* the DN is an empty string so no pretty/normalization is needed */
 101         assert( !e->e_name.bv_len );
 102         assert( !e->e_nname.bv_len );
 103
 104         e->e_private = NULL;
 105
 106         vals[0].bv_val = "top";
 107         vals[0].bv_len = sizeof("top")-1;
 108         if( attr_merge( e, ad_objectClass, vals, NULL ) ) {
 109                 return LDAP_OTHER;
 110         }
 111
 112         vals[0].bv_val = "OpenLDAProotDSE";
 113         vals[0].bv_len = sizeof("OpenLDAProotDSE")-1;
 114         if( attr_merge( e, ad_objectClass, vals, NULL ) ) {
 115                 return LDAP_OTHER;
 116         }
 117         if( attr_merge( e, ad_structuralObjectClass, vals, NULL ) ) {
 118                 return LDAP_OTHER;
 119         }
 120
 121         for ( i = 0; i < nbackends; i++ ) {
 122                 if ( backends[i].be_flags & SLAP_BFLAG_MONITOR ) {
 123                         vals[0] = backends[i].be_suffix[0];
 124                         nvals[0] = backends[i].be_nsuffix[0];
 125                         if( attr_merge( e, ad_monitorContext, vals, nvals ) ) {
 126                                 return LDAP_OTHER;
 127                         }
 128                         continue;
 129                 }
 130                 if ( SLAP_GLUE_SUBORDINATE( &backends[i] ) ) {
 131                         continue;
 132                 }
 133                 for ( j = 0; backends[i].be_suffix[j].bv_val != NULL; j++ ) {
 134                         vals[0] = backends[i].be_suffix[j];
 135                         nvals[0] = backends[i].be_nsuffix[0];
 136                         if( attr_merge( e, ad_namingContexts, vals, nvals ) ) {
 137                                 return LDAP_OTHER;
 138                         }
 139                 }
 140         }
 141
 142         /* altServer unsupported */
 143
 144         /* supportedControl */
 145         if ( controls_root_dse_info( e ) != 0 ) {
 146                 return LDAP_OTHER;
 147         }
 148
 149         /* supportedExtension */
 150         if ( exop_root_dse_info( e ) != 0 ) {
 151                 return LDAP_OTHER;
 152         }
 153
 154 #ifdef LDAP_SLAPI
 155         /* netscape supportedExtension */
 156         for ( i = 0; (bv = ns_get_supported_extop(i)) != NULL; i++ ) {
 157                 vals[0] = *bv;
 158                 if( attr_merge( e, ad_supportedExtension, vals, NULL )) {
 159                         return LDAP_OTHER;
 160                 }
 161         }
 162 #endif /* LDAP_SLAPI */
 163
 164         /* supportedFeatures */
 165         if( attr_merge( e, ad_supportedFeatures, supportedFeatures, NULL ) ) {
 166                 return LDAP_OTHER;
 167         }
 168
 169         /* supportedLDAPVersion */
 170         for ( i=LDAP_VERSION_MIN; i<=LDAP_VERSION_MAX; i++ ) {
 171                 char buf[BUFSIZ];
 172                 if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
 173                         ( i < LDAP_VERSION3 ) )
 174                 {
 175                         /* version 2 and lower are disallowed */
 176                         continue;
 177                 }
 178                 snprintf(buf, sizeof buf, "%d", i);
 179                 vals[0].bv_val = buf;
 180                 vals[0].bv_len = strlen( vals[0].bv_val );
 181                 if( attr_merge( e, ad_supportedLDAPVersion, vals, NULL ) ) {
 182                         return LDAP_OTHER;
 183                 }
 184         }
 185
 186         /* supportedSASLMechanism */
 187         supportedSASLMechanisms = slap_sasl_mechs( conn );
 188
 189         if( supportedSASLMechanisms != NULL ) {
 190                 for ( i=0; supportedSASLMechanisms[i] != NULL; i++ ) {
 191                         vals[0].bv_val = supportedSASLMechanisms[i];
 192                         vals[0].bv_len = strlen( vals[0].bv_val );
 193                         if( attr_merge( e, ad_supportedSASLMechanisms, vals, NULL ) ) {
 194                                 return LDAP_OTHER;
 195                         }
 196                 }
 197                 ldap_charray_free( supportedSASLMechanisms );
 198         }
 199
 200         if ( default_referral != NULL ) {
 201                 if( attr_merge( e, ad_ref, default_referral, NULL /* FIXME */ ) ) {
 202                         return LDAP_OTHER;
 203                 }
 204         }
 205
 206         if( usr_attr != NULL) {
 207                 Attribute *a;
 208                 for( a = usr_attr->e_attrs; a != NULL; a = a->a_next ) {
 209                         if( attr_merge( e, a->a_desc, a->a_vals,
 210                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 211                         {
 212                                 return LDAP_OTHER;
 213                         }
 214                 }
 215         }
 216
 217         *entry = e;
 218         return LDAP_SUCCESS;
 219 }
 220
 221 /*
 222  * Read the entries specified in fname and merge the attributes
 223  * to the user defined rootDSE. Note thaat if we find any errors
 224  * what so ever, we will discard the entire entries, print an
 225  * error message and return.
 226  */
 227 int read_root_dse_file( const char *fname )
 228 {
 229         FILE    *fp;
 230         int rc = 0, lineno = 0, lmax = 0;
 231         char    *buf = NULL;
 232
 233         if ( (fp = fopen( fname, "r" )) == NULL ) {
 234                 Debug( LDAP_DEBUG_ANY,
 235                         "could not open rootdse attr file \"%s\" - absolute path?\n",
 236                         fname, 0, 0 );
 237                 perror( fname );
 238                 return EXIT_FAILURE;
 239         }
 240
 241         usr_attr = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
 242         if( usr_attr == NULL ) {
 243 #ifdef NEW_LOGGING
 244                 LDAP_LOG( OPERATION, ERR,
 245                         "read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
 246 #else
 247                 Debug( LDAP_DEBUG_ANY,
 248                         "read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
 249 #endif
 250                 fclose( fp );
 251                 return LDAP_OTHER;
 252         }
 253         usr_attr->e_attrs = NULL;
 254
 255         while( ldif_read_record( fp, &lineno, &buf, &lmax ) ) {
 256                 Entry *e = str2entry( buf );
 257                 Attribute *a;
 258
 259                 if( e == NULL ) {
 260                         fprintf( stderr, "root_dse: could not parse entry (line=%d)\n",
 261                                 lineno );
 262                         rc = EXIT_FAILURE;
 263                         break;
 264                 }
 265
 266                 /* make sure the DN is the empty DN */
 267                 if( e->e_nname.bv_len ) {
 268                         fprintf( stderr,
 269                                 "root_dse: invalid rootDSE - dn=\"%s\" (line=%d)\n",
 270                                 e->e_dn, lineno );
 271                         entry_free( e );
 272                         rc = EXIT_FAILURE;
 273                         break;
 274                 }
 275
 276                 /*
 277                  * we found a valid entry, so walk thru all the attributes in the
 278                  * entry, and add each attribute type and description to the
 279                  * usr_attr entry
 280                  */
 281
 282                 for(a = e->e_attrs; a != NULL; a = a->a_next) {
 283                         if( attr_merge( usr_attr, a->a_desc, a->a_vals,
 284                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 285                         {
 286                                 rc = LDAP_OTHER;
 287                                 break;
 288                         }
 289                 }
 290
 291                 entry_free( e );
 292                 if (rc) break;
 293         }
 294
 295         if (rc) {
 296                 entry_free( usr_attr );
 297                 usr_attr = NULL;
 298         }
 299
 300         ch_free( buf );
 301
 302         fclose( fp );
 303
 304         Debug(LDAP_DEBUG_CONFIG, "rootDSE file %s read.\n", fname, 0, 0);
 305         return rc;
 306 }