git.sur5r.net Git - openldap/blob - servers/slapd/modrdn.c

   1 /* $OpenLDAP$ */
   2 /*
   3  * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
   4  * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
   5  */
   6 /*
   7  * Copyright (c) 1995 Regents of the University of Michigan.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms are permitted
  11  * provided that this notice is preserved and that due credit is given
  12  * to the University of Michigan at Ann Arbor. The name of the University
  13  * may not be used to endorse or promote products derived from this
  14  * software without specific prior written permission. This software
  15  * is provided ``as is'' without express or implied warranty.
  16  */
  17
  18 /*
  19  * LDAP v3 newSuperior support.
  20  *
  21  * Copyright 1999, Juan C. Gomez, All rights reserved.
  22  * This software is not subject to any license of Silicon Graphics
  23  * Inc. or Purdue University.
  24  *
  25  * Redistribution and use in source and binary forms are permitted
  26  * without restriction or fee of any kind as long as this notice
  27  * is preserved.
  28  *
  29  */
  30
  31 #include "portable.h"
  32
  33 #include <stdio.h>
  34
  35 #include <ac/socket.h>
  36 #include <ac/string.h>
  37
  38 #include "ldap_pvt.h"
  39 #include "slap.h"
  40
  41 int
  42 do_modrdn(
  43     Connection  *conn,
  44     Operation   *op
  45 )
  46 {
  47         struct berval dn = { 0, NULL };
  48         struct berval newrdn = { 0, NULL };
  49         struct berval newSuperior = { 0, NULL };
  50         ber_int_t       deloldrdn;
  51
  52         struct berval *pdn = NULL;
  53         struct berval *pnewrdn = NULL;
  54         struct berval *pnewSuperior = NULL;
  55
  56         struct berval *ndn = NULL;
  57         struct berval *nnewrdn = NULL;
  58         struct berval *nnewSuperior = NULL;
  59
  60         Backend *be;
  61         Backend *newSuperior_be = NULL;
  62         ber_len_t       length;
  63         int rc;
  64         const char *text;
  65         int manageDSAit;
  66
  67 #ifdef NEW_LOGGING
  68         LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
  69                 "do_modrdn: begin\n" ));
  70 #else
  71         Debug( LDAP_DEBUG_TRACE, "do_modrdn\n", 0, 0, 0 );
  72 #endif
  73
  74
  75         /*
  76          * Parse the modrdn request.  It looks like this:
  77          *
  78          *      ModifyRDNRequest := SEQUENCE {
  79          *              entry   DistinguishedName,
  80          *              newrdn  RelativeDistinguishedName
  81          *              deleteoldrdn    BOOLEAN,
  82          *              newSuperior     [0] LDAPDN OPTIONAL (v3 Only!)
  83          *      }
  84          */
  85
  86         if ( ber_scanf( op->o_ber, "{oob", &dn, &newrdn, &deloldrdn )
  87             == LBER_ERROR )
  88         {
  89 #ifdef NEW_LOGGING
  90                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
  91                         "do_modrdn: ber_scanf failed\n" ));
  92 #else
  93                 Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
  94 #endif
  95
  96                 send_ldap_disconnect( conn, op,
  97                         LDAP_PROTOCOL_ERROR, "decoding error" );
  98                 return SLAPD_DISCONNECT;
  99         }
 100
 101         /* Check for newSuperior parameter, if present scan it */
 102
 103         if ( ber_peek_tag( op->o_ber, &length ) == LDAP_TAG_NEWSUPERIOR ) {
 104                 if ( op->o_protocol < LDAP_VERSION3 ) {
 105                         /* Conection record indicates v2 but field
 106                          * newSuperior is present: report error.
 107                          */
 108 #ifdef NEW_LOGGING
 109                         LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 110                                 "do_modrdn: (v2) invalid field newSuperior.\n" ));
 111 #else
 112                         Debug( LDAP_DEBUG_ANY,
 113                             "modrdn(v2): invalid field newSuperior!\n",
 114                             0, 0, 0 );
 115 #endif
 116
 117                         send_ldap_disconnect( conn, op,
 118                                 LDAP_PROTOCOL_ERROR, "newSuperior requires LDAPv3" );
 119                         rc = SLAPD_DISCONNECT;
 120                         goto cleanup;
 121                 }
 122
 123                 if ( ber_scanf( op->o_ber, "o", &newSuperior )
 124                      == LBER_ERROR ) {
 125
 126 #ifdef NEW_LOGGING
 127                         LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 128                                 "do_modrdn: ber_scanf(\"a\") failed\n" ));
 129 #else
 130                         Debug( LDAP_DEBUG_ANY, "ber_scanf(\"a\") failed\n",
 131                                 0, 0, 0 );
 132 #endif
 133
 134                         send_ldap_disconnect( conn, op,
 135                                 LDAP_PROTOCOL_ERROR, "decoding error" );
 136                         rc = SLAPD_DISCONNECT;
 137                         goto cleanup;
 138                 }
 139         }
 140
 141 #ifdef NEW_LOGGING
 142         LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
 143                 "do_modrdn: dn (%s) newrdn (%s) newsuperior(%s)\n",
 144                 dn.bv_val, newrdn.bv_val,
 145                 newSuperior.bv_len ? newSuperior.bv_val : "" ));
 146 #else
 147         Debug( LDAP_DEBUG_ARGS,
 148             "do_modrdn: dn (%s) newrdn (%s) newsuperior (%s)\n",
 149                 dn.bv_val, newrdn.bv_val,
 150                 newSuperior.bv_len ? newSuperior.bv_val : "" );
 151 #endif
 152
 153         if ( ber_scanf( op->o_ber, /*{*/ "}") == LBER_ERROR ) {
 154 #ifdef NEW_LOGGING
 155                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 156                         "do_modrdn: ber_scanf failed\n" ));
 157 #else
 158                 Debug( LDAP_DEBUG_ANY, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
 159 #endif
 160
 161                 send_ldap_disconnect( conn, op,
 162                         LDAP_PROTOCOL_ERROR, "decoding error" );
 163                 rc = SLAPD_DISCONNECT;
 164                 goto cleanup;
 165         }
 166
 167         if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
 168 #ifdef NEW_LOGGING
 169                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 170                         "do_modrdn: get_ctrls failed\n" ));
 171 #else
 172                 Debug( LDAP_DEBUG_ANY, "do_modrdn: get_ctrls failed\n", 0, 0, 0 );
 173 #endif
 174
 175                 /* get_ctrls has sent results.  Now clean up. */
 176                 goto cleanup;
 177         }
 178
 179         rc = dnPretty( NULL, &dn, &pdn );
 180         if( rc != LDAP_SUCCESS ) {
 181 #ifdef NEW_LOGGING
 182                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 183                         "do_modrdn: conn %d  invalid dn (%s)\n",
 184                         conn->c_connid, dn.bv_val ));
 185 #else
 186                 Debug( LDAP_DEBUG_ANY,
 187                         "do_modrdn: invalid dn (%s)\n", dn.bv_val, 0, 0 );
 188 #endif
 189                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 190                     "invalid DN", NULL, NULL );
 191                 goto cleanup;
 192         }
 193
 194         rc = dnNormalize( NULL, &dn, &ndn );
 195         if( rc != LDAP_SUCCESS ) {
 196 #ifdef NEW_LOGGING
 197                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 198                         "do_modrdn: conn %d  invalid dn (%s)\n",
 199                         conn->c_connid, pdn->bv_val ));
 200 #else
 201                 Debug( LDAP_DEBUG_ANY,
 202                         "do_modrdn: invalid dn (%s)\n", pdn->bv_val, 0, 0 );
 203 #endif
 204                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 205                     "invalid DN", NULL, NULL );
 206                 goto cleanup;
 207         }
 208
 209         if( ndn->bv_len == 0 ) {
 210 #ifdef NEW_LOGGING
 211                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 212                            "do_modrdn:  attempt to modify root DSE.\n" ));
 213 #else
 214                 Debug( LDAP_DEBUG_ANY, "do_modrdn: root dse!\n", 0, 0, 0 );
 215 #endif
 216
 217                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 218                         NULL, "cannot rename the root DSE", NULL, NULL );
 219                 goto cleanup;
 220
 221 #ifdef SLAPD_SCHEMA_DN
 222         } else if ( strcasecmp( ndn->bv_val, SLAPD_SCHEMA_DN ) == 0 ) {
 223 #ifdef NEW_LOGGING
 224                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 225                         "do_modrdn: attempt to modify subschema subentry\n" ));
 226 #else
 227                 Debug( LDAP_DEBUG_ANY, "do_modrdn: subschema subentry!\n", 0, 0, 0 );
 228 #endif
 229
 230                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 231                         NULL, "cannot rename subschema subentry", NULL, NULL );
 232                 goto cleanup;
 233 #endif
 234         }
 235
 236         /* FIXME: should have/use rdnPretty / rdnNormalize routines */
 237
 238         rc = dnPretty( NULL, &newrdn, &pnewrdn );
 239         if( rc != LDAP_SUCCESS ) {
 240 #ifdef NEW_LOGGING
 241                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 242                         "do_modrdn: conn %d  invalid newrdn (%s)\n",
 243                         conn->c_connid, newrdn.bv_val ));
 244 #else
 245                 Debug( LDAP_DEBUG_ANY,
 246                         "do_modrdn: invalid newrdn (%s)\n", newrdn.bv_val, 0, 0 );
 247 #endif
 248                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 249                     "invalid new RDN", NULL, NULL );
 250                 goto cleanup;
 251         }
 252
 253         rc = dnNormalize( NULL, &newrdn, &nnewrdn );
 254         if( rc != LDAP_SUCCESS ) {
 255 #ifdef NEW_LOGGING
 256                 LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 257                         "do_modrdn: conn %d  invalid newrdn (%s)\n",
 258                         conn->c_connid, pnewrdn->bv_val ));
 259 #else
 260                 Debug( LDAP_DEBUG_ANY,
 261                         "do_modrdn: invalid newrdn (%s)\n", pnewrdn->bv_val, 0, 0 );
 262 #endif
 263                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 264                     "invalid new RDN", NULL, NULL );
 265                 goto cleanup;
 266         }
 267
 268         if( !nnewrdn->bv_len || !rdn_validate( pnewrdn->bv_val ) ) {
 269 #ifdef NEW_LOGGING
 270                 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
 271                         "do_modrdn: invalid rdn (%s).\n", pnewrdn->bv_val ));
 272 #else
 273                 Debug( LDAP_DEBUG_ANY, "do_modrdn: invalid rdn (%s)\n",
 274                         pnewrdn->bv_val, 0, 0 );
 275 #endif
 276
 277                 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 278                     "invalid new RDN", NULL, NULL );
 279                 goto cleanup;
 280         }
 281
 282         if( newSuperior.bv_len ) {
 283                 rc = dnPretty( NULL, &newSuperior, &pnewSuperior );
 284                 if( rc != LDAP_SUCCESS ) {
 285 #ifdef NEW_LOGGING
 286                         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 287                                 "do_modrdn: conn %d  invalid newSuperior (%s)\n",
 288                                 conn->c_connid, newSuperior.bv_val ));
 289 #else
 290                         Debug( LDAP_DEBUG_ANY,
 291                                 "do_modrdn: invalid newSuperior (%s)\n",
 292                                 newSuperior.bv_val, 0, 0 );
 293 #endif
 294                         send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 295                                 "invalid newSuperior", NULL, NULL );
 296                         goto cleanup;
 297                 }
 298
 299                 rc = dnNormalize( NULL, &newSuperior, &nnewSuperior );
 300                 if( rc != LDAP_SUCCESS ) {
 301 #ifdef NEW_LOGGING
 302                         LDAP_LOG(( "operation", LDAP_LEVEL_INFO,
 303                                 "do_modrdn: conn %d  invalid newSuperior (%s)\n",
 304                                 conn->c_connid, pnewSuperior->bv_val ));
 305 #else
 306                         Debug( LDAP_DEBUG_ANY,
 307                                 "do_modrdn: invalid newSuperior (%s)\n",
 308                                 pnewSuperior->bv_val, 0, 0 );
 309 #endif
 310                         send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
 311                                 "invalid newSuperior", NULL, NULL );
 312                         goto cleanup;
 313                 }
 314         }
 315
 316         Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d MODRDN dn=\"%s\"\n",
 317             op->o_connid, op->o_opid, pdn->bv_val, 0, 0 );
 318
 319         manageDSAit = get_manageDSAit( op );
 320
 321         /*
 322          * We could be serving multiple database backends.  Select the
 323          * appropriate one, or send a referral to our "referral server"
 324          * if we don't hold it.
 325          */
 326         if ( (be = select_backend( ndn->bv_val, manageDSAit, 0 )) == NULL ) {
 327                 struct berval **ref = referral_rewrite( default_referral,
 328                         NULL, dn.bv_val, LDAP_SCOPE_DEFAULT );
 329
 330                 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
 331                         NULL, NULL, ref ? ref : default_referral, NULL );
 332
 333                 ber_bvecfree( ref );
 334                 goto cleanup;
 335         }
 336
 337         /* check restrictions */
 338         rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
 339         if( rc != LDAP_SUCCESS ) {
 340                 send_ldap_result( conn, op, rc,
 341                         NULL, text, NULL, NULL );
 342                 goto cleanup;
 343         }
 344
 345         /* check for referrals */
 346         rc = backend_check_referrals( be, conn, op, pdn->bv_val, ndn->bv_val );
 347         if ( rc != LDAP_SUCCESS ) {
 348                 goto cleanup;
 349         }
 350
 351         /* Make sure that the entry being changed and the newSuperior are in
 352          * the same backend, otherwise we return an error.
 353          */
 354         if( newSuperior.bv_len ) {
 355                 newSuperior_be = select_backend( nnewSuperior->bv_val, 0, 0 );
 356
 357                 if ( newSuperior_be != be ) {
 358                         /* newSuperior is in same backend */
 359                         rc = LDAP_AFFECTS_MULTIPLE_DSAS;
 360
 361                         send_ldap_result( conn, op, rc,
 362                                 NULL, "cannot rename between DSAa", NULL, NULL );
 363
 364                         goto cleanup;
 365                 }
 366         }
 367
 368         /* deref suffix alias if appropriate */
 369         suffix_alias( be, ndn );
 370
 371         /*
 372          * do the add if 1 && (2 || 3)
 373          * 1) there is an add function implemented in this backend;
 374          * 2) this backend is master for what it holds;
 375          * 3) it's a replica and the dn supplied is the update_ndn.
 376          */
 377         if ( be->be_modrdn ) {
 378                 /* do the update here */
 379                 int repl_user = be_isupdate( be, op->o_ndn.bv_val );
 380 #ifndef SLAPD_MULTIMASTER
 381                 if ( be->be_update_ndn == NULL || repl_user )
 382 #endif
 383                 {
 384                         if ( (*be->be_modrdn)( be, conn, op, pdn->bv_val, ndn->bv_val,
 385                                 pnewrdn->bv_val, deloldrdn, pnewSuperior ? pnewSuperior->bv_val : NULL ) == 0
 386 #ifdef SLAPD_MULTIMASTER
 387                                 && ( be->be_update_ndn == NULL || !repl_user )
 388 #endif
 389                         ) {
 390                                 struct replog_moddn moddn;
 391                                 moddn.newrdn = pnewrdn->bv_val;
 392                                 moddn.deloldrdn = deloldrdn;
 393                                 moddn.newsup = pnewSuperior ? pnewSuperior->bv_val : NULL;
 394
 395                                 replog( be, op, pdn->bv_val, ndn->bv_val, &moddn );
 396                         }
 397 #ifndef SLAPD_MULTIMASTER
 398                 } else {
 399                         struct berval **defref = be->be_update_refs
 400                                 ? be->be_update_refs : default_referral;
 401                         struct berval **ref = referral_rewrite( defref,
 402                                 NULL, pdn->bv_val, LDAP_SCOPE_DEFAULT );
 403
 404                         send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
 405                                 ref ? ref : defref, NULL );
 406
 407                         ber_bvecfree( ref );
 408 #endif
 409                 }
 410         } else {
 411                 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
 412                         NULL, "operation not supported within namingContext",
 413                         NULL, NULL );
 414         }
 415
 416 cleanup:
 417         free( dn.bv_val );
 418         if( pdn != NULL ) ber_bvfree( pdn );
 419         if( ndn != NULL ) ber_bvfree( ndn );
 420
 421         free( newrdn.bv_val );
 422         if( pnewrdn != NULL ) ber_bvfree( pnewrdn );
 423         if( nnewrdn != NULL ) ber_bvfree( nnewrdn );
 424
 425         free( newSuperior.bv_val );
 426         if ( pnewSuperior != NULL ) ber_bvfree( pnewSuperior );
 427         if ( nnewSuperior != NULL ) ber_bvfree( nnewSuperior );
 428
 429         return rc;
 430 }