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 1999-2004 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
  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_suffix == NULL
 123                                 || backends[i].be_nsuffix == NULL ) {
 124                         /* no suffix! */
 125                         continue;
 126                 }
 127                 if ( backends[i].be_flags & SLAP_BFLAG_MONITOR ) {
 128                         vals[0] = backends[i].be_suffix[0];
 129                         nvals[0] = backends[i].be_nsuffix[0];
 130                         if( attr_merge( e, ad_monitorContext, vals, nvals ) ) {
 131                                 return LDAP_OTHER;
 132                         }
 133                         continue;
 134                 }
 135                 if ( SLAP_GLUE_SUBORDINATE( &backends[i] ) ) {
 136                         continue;
 137                 }
 138                 for ( j = 0; backends[i].be_suffix[j].bv_val != NULL; j++ ) {
 139                         vals[0] = backends[i].be_suffix[j];
 140                         nvals[0] = backends[i].be_nsuffix[0];
 141                         if( attr_merge( e, ad_namingContexts, vals, nvals ) ) {
 142                                 return LDAP_OTHER;
 143                         }
 144                 }
 145         }
 146
 147         /* altServer unsupported */
 148
 149         /* supportedControl */
 150         if ( controls_root_dse_info( e ) != 0 ) {
 151                 return LDAP_OTHER;
 152         }
 153
 154         /* supportedExtension */
 155         if ( exop_root_dse_info( e ) != 0 ) {
 156                 return LDAP_OTHER;
 157         }
 158
 159 #ifdef LDAP_SLAPI
 160         /* netscape supportedExtension */
 161         for ( i = 0; (bv = slapi_int_get_supported_extop(i)) != NULL; i++ ) {
 162                 vals[0] = *bv;
 163                 if( attr_merge( e, ad_supportedExtension, vals, NULL )) {
 164                         return LDAP_OTHER;
 165                 }
 166         }
 167 #endif /* LDAP_SLAPI */
 168
 169         /* supportedFeatures */
 170         if( attr_merge( e, ad_supportedFeatures, supportedFeatures, NULL ) ) {
 171                 return LDAP_OTHER;
 172         }
 173
 174         /* supportedLDAPVersion */
 175         for ( i=LDAP_VERSION_MIN; i<=LDAP_VERSION_MAX; i++ ) {
 176                 char buf[BUFSIZ];
 177                 if (!( global_allows & SLAP_ALLOW_BIND_V2 ) &&
 178                         ( i < LDAP_VERSION3 ) )
 179                 {
 180                         /* version 2 and lower are disallowed */
 181                         continue;
 182                 }
 183                 snprintf(buf, sizeof buf, "%d", i);
 184                 vals[0].bv_val = buf;
 185                 vals[0].bv_len = strlen( vals[0].bv_val );
 186                 if( attr_merge( e, ad_supportedLDAPVersion, vals, NULL ) ) {
 187                         return LDAP_OTHER;
 188                 }
 189         }
 190
 191         /* supportedSASLMechanism */
 192         supportedSASLMechanisms = slap_sasl_mechs( conn );
 193
 194         if( supportedSASLMechanisms != NULL ) {
 195                 for ( i=0; supportedSASLMechanisms[i] != NULL; i++ ) {
 196                         vals[0].bv_val = supportedSASLMechanisms[i];
 197                         vals[0].bv_len = strlen( vals[0].bv_val );
 198                         if( attr_merge( e, ad_supportedSASLMechanisms, vals, NULL ) ) {
 199                                 return LDAP_OTHER;
 200                         }
 201                 }
 202                 ldap_charray_free( supportedSASLMechanisms );
 203         }
 204
 205         if ( default_referral != NULL ) {
 206                 if( attr_merge( e, ad_ref, default_referral, NULL /* FIXME */ ) ) {
 207                         return LDAP_OTHER;
 208                 }
 209         }
 210
 211         if( usr_attr != NULL) {
 212                 Attribute *a;
 213                 for( a = usr_attr->e_attrs; a != NULL; a = a->a_next ) {
 214                         if( attr_merge( e, a->a_desc, a->a_vals,
 215                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 216                         {
 217                                 return LDAP_OTHER;
 218                         }
 219                 }
 220         }
 221
 222         *entry = e;
 223         return LDAP_SUCCESS;
 224 }
 225
 226 /*
 227  * Read the entries specified in fname and merge the attributes
 228  * to the user defined rootDSE. Note thaat if we find any errors
 229  * what so ever, we will discard the entire entries, print an
 230  * error message and return.
 231  */
 232 int read_root_dse_file( const char *fname )
 233 {
 234         FILE    *fp;
 235         int rc = 0, lineno = 0, lmax = 0;
 236         char    *buf = NULL;
 237
 238         if ( (fp = fopen( fname, "r" )) == NULL ) {
 239                 Debug( LDAP_DEBUG_ANY,
 240                         "could not open rootdse attr file \"%s\" - absolute path?\n",
 241                         fname, 0, 0 );
 242                 perror( fname );
 243                 return EXIT_FAILURE;
 244         }
 245
 246         usr_attr = (Entry *) SLAP_CALLOC( 1, sizeof(Entry) );
 247         if( usr_attr == NULL ) {
 248 #ifdef NEW_LOGGING
 249                 LDAP_LOG( OPERATION, ERR,
 250                         "read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
 251 #else
 252                 Debug( LDAP_DEBUG_ANY,
 253                         "read_root_dse_file: SLAP_CALLOC failed", 0, 0, 0 );
 254 #endif
 255                 fclose( fp );
 256                 return LDAP_OTHER;
 257         }
 258         usr_attr->e_attrs = NULL;
 259
 260         while( ldif_read_record( fp, &lineno, &buf, &lmax ) ) {
 261                 Entry *e = str2entry( buf );
 262                 Attribute *a;
 263
 264                 if( e == NULL ) {
 265                         fprintf( stderr, "root_dse: could not parse entry (line=%d)\n",
 266                                 lineno );
 267                         rc = EXIT_FAILURE;
 268                         break;
 269                 }
 270
 271                 /* make sure the DN is the empty DN */
 272                 if( e->e_nname.bv_len ) {
 273                         fprintf( stderr,
 274                                 "root_dse: invalid rootDSE - dn=\"%s\" (line=%d)\n",
 275                                 e->e_dn, lineno );
 276                         entry_free( e );
 277                         rc = EXIT_FAILURE;
 278                         break;
 279                 }
 280
 281                 /*
 282                  * we found a valid entry, so walk thru all the attributes in the
 283                  * entry, and add each attribute type and description to the
 284                  * usr_attr entry
 285                  */
 286
 287                 for(a = e->e_attrs; a != NULL; a = a->a_next) {
 288                         if( attr_merge( usr_attr, a->a_desc, a->a_vals,
 289                                 (a->a_nvals == a->a_vals) ? NULL : a->a_nvals ) )
 290                         {
 291                                 rc = LDAP_OTHER;
 292                                 break;
 293                         }
 294                 }
 295
 296                 entry_free( e );
 297                 if (rc) break;
 298         }
 299
 300         if (rc) {
 301                 entry_free( usr_attr );
 302                 usr_attr = NULL;
 303         }
 304
 305         ch_free( buf );
 306
 307         fclose( fp );
 308
 309         Debug(LDAP_DEBUG_CONFIG, "rootDSE file %s read.\n", fname, 0, 0);
 310         return rc;
 311 }