]> git.sur5r.net Git - openldap/blobdiff - servers/slapd/modrdn.c
Fix memory leak.
[openldap] / servers / slapd / modrdn.c
index 25752ea85d7f968af9a51e9bba4f41b42d272d3f..11434c9635ed02ea5559a4dde181e7e981c1ca0b 100644 (file)
@@ -1,3 +1,8 @@
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /*
  * Copyright (c) 1995 Regents of the University of Michigan.
  * All rights reserved.
  * is provided ``as is'' without express or implied warranty.
  */
 
+/*
+ * LDAP v3 newSuperior support.
+ *
+ * Copyright 1999, Juan C. Gomez, All rights reserved.
+ * This software is not subject to any license of Silicon Graphics 
+ * Inc. or Purdue University.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * without restriction or fee of any kind as long as this notice
+ * is preserved.
+ *
+ */
+
 #include "portable.h"
 
 #include <stdio.h>
 #include <ac/socket.h>
 #include <ac/string.h>
 
+#include "ldap_pvt.h"
 #include "slap.h"
 
-void
+int
 do_modrdn(
     Connection *conn,
     Operation  *op
 )
 {
-       char    *dn, *odn, *newrdn;
-       int     deloldrdn;
+       char    *dn, *ndn = NULL, *newrdn;
+       ber_int_t       deloldrdn;
        Backend *be;
+       /* Vars for LDAP v3 newSuperior support */
+       char    *newSuperior = NULL;
+       char    *nnewSuperior = NULL;
+       Backend *newSuperior_be = NULL;
+       ber_len_t       length;
+       int rc;
+       const char *text;
 
        Debug( LDAP_DEBUG_TRACE, "do_modrdn\n", 0, 0, 0 );
 
@@ -37,24 +63,95 @@ do_modrdn(
         *      ModifyRDNRequest := SEQUENCE {
         *              entry   DistinguishedName,
         *              newrdn  RelativeDistinguishedName
+        *              deleteoldrdn    BOOLEAN,
+        *              newSuperior     [0] LDAPDN OPTIONAL (v3 Only!)
         *      }
         */
 
-       if ( ber_scanf( op->o_ber, "{aab}", &dn, &newrdn, &deloldrdn )
+       if ( ber_scanf( op->o_ber, "{aab", &dn, &newrdn, &deloldrdn )
            == LBER_ERROR ) {
                Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
-               send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR, NULL, "" );
-               return;
+               send_ldap_disconnect( conn, op,
+                       LDAP_PROTOCOL_ERROR, "decoding error" );
+               return SLAPD_DISCONNECT;
+       }
+
+       /* Check for newSuperior parameter, if present scan it */
+
+       if ( ber_peek_tag( op->o_ber, &length ) == LDAP_TAG_NEWSUPERIOR ) {
+               if ( op->o_protocol < LDAP_VERSION3 ) {
+                       /* Conection record indicates v2 but field 
+                        * newSuperior is present: report error.
+                        */
+                       Debug( LDAP_DEBUG_ANY,
+                              "modrdn(v2): invalid field newSuperior!\n",
+                              0, 0, 0 );
+                       send_ldap_disconnect( conn, op,
+                               LDAP_PROTOCOL_ERROR, "newSuperior requires LDAPv3" );
+                       rc = SLAPD_DISCONNECT;
+                       goto cleanup;
+               }
+
+               if ( ber_scanf( op->o_ber, "a", &newSuperior ) 
+                    == LBER_ERROR ) {
+
+                       Debug( LDAP_DEBUG_ANY, "ber_scanf(\"a\") failed\n",
+                          0, 0, 0 );
+                       send_ldap_disconnect( conn, op,
+                               LDAP_PROTOCOL_ERROR, "decoding error" );
+                       rc = SLAPD_DISCONNECT;
+                       goto cleanup;
+               }
+
+               nnewSuperior = ch_strdup( newSuperior );
+
+               if( dn_normalize( nnewSuperior ) == NULL ) {
+                       Debug( LDAP_DEBUG_ANY, "do_modrdn: invalid new superior (%s)\n",
+                               newSuperior, 0, 0 );
+                       send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+                               "invalid new superior DN", NULL, NULL );
+                       goto cleanup;
+               }
+
        }
-       odn = strdup( dn );
-       dn_normalize( dn );
 
        Debug( LDAP_DEBUG_ARGS,
-           "do_modrdn: dn (%s) newrdn (%s) deloldrdn (%d)\n", dn, newrdn,
-           deloldrdn );
+           "do_modrdn: dn (%s) newrdn (%s) newsuperior (%s)\n",
+               dn, newrdn,
+               newSuperior != NULL ? newSuperior : "" );
+
+       if ( ber_scanf( op->o_ber, /*{*/ "}") == LBER_ERROR ) {
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: ber_scanf failed\n", 0, 0, 0 );
+               send_ldap_disconnect( conn, op,
+                               LDAP_PROTOCOL_ERROR, "decoding error" );
+               rc = SLAPD_DISCONNECT;
+               goto cleanup;
+       }
 
-       Statslog( LDAP_DEBUG_STATS, "conn=%d op=%d MODRDN dn=\"%s\"\n",
-           conn->c_connid, op->o_opid, dn, 0, 0 );
+       if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: get_ctrls failed\n", 0, 0, 0 );
+               /* get_ctrls has sent results.  Now clean up. */
+               goto cleanup;
+       } 
+
+       ndn = ch_strdup( dn );
+
+       if( dn_normalize( ndn ) == NULL ) {
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: invalid dn (%s)\n", dn, 0, 0 );
+               send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+                   "invalid DN", NULL, NULL );
+               goto cleanup;
+       }
+
+       if( !rdn_validate( newrdn ) ) {
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: invalid rdn (%s)\n", newrdn, 0, 0 );
+               send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+                   "invalid RDN", NULL, NULL );
+               goto cleanup;
+       }
+
+       Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d MODRDN dn=\"%s\"\n",
+           op->o_connid, op->o_opid, dn, 0, 0 );
 
        /*
         * We could be serving multiple database backends.  Select the
@@ -62,40 +159,97 @@ do_modrdn(
         * if we don't hold it.
         */
 
-       if ( (be = select_backend( dn )) == NULL ) {
-               free( dn );
-               free( odn );
-               free( newrdn );
-               send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
-                   default_referral );
-               return;
+       if ( (be = select_backend( ndn )) == NULL ) {
+               send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+                       NULL, NULL, default_referral, NULL );
+               goto cleanup;
+       }
+
+       /* make sure this backend recongizes critical controls */
+       rc = backend_check_controls( be, conn, op, &text ) ;
+
+       if( rc != LDAP_SUCCESS ) {
+               send_ldap_result( conn, op, rc,
+                       NULL, text, NULL, NULL );
+               goto cleanup;
+       }
+
+       if ( global_readonly || be->be_readonly ) {
+               Debug( LDAP_DEBUG_ANY, "do_modrdn: database is read-only\n",
+                      0, 0, 0 );
+               send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+                                 NULL, "database is read-only", NULL, NULL );
+               goto cleanup;
        }
 
+       /* Make sure that the entry being changed and the newSuperior are in 
+        * the same backend, otherwise we return an error.
+        */
+       if( newSuperior != NULL ) {
+               newSuperior_be = select_backend( nnewSuperior );
+
+               if ( newSuperior_be != be ) {
+                       /* newSuperior is in same backend */
+                       rc = LDAP_AFFECTS_MULTIPLE_DSAS;
+
+                       send_ldap_result( conn, op, rc,
+                               NULL, "cannot rename between DSAa", NULL, NULL );
+
+                       goto cleanup;
+               }
+
+               /* deref suffix alias if appropriate */
+               nnewSuperior = suffix_alias( be, nnewSuperior );
+       }
+
+       /* deref suffix alias if appropriate */
+       ndn = suffix_alias( be, ndn );
+
        /*
         * do the add if 1 && (2 || 3)
         * 1) there is an add function implemented in this backend;
         * 2) this backend is master for what it holds;
-        * 3) it's a replica and the dn supplied is the updatedn.
+        * 3) it's a replica and the dn supplied is the update_ndn.
         */
-       if ( be->be_modrdn != NULL ) {
+       if ( be->be_modrdn ) {
                /* do the update here */
-               if ( be->be_updatedn == NULL || strcasecmp( be->be_updatedn,
-                   op->o_dn ) == 0 ) {
-                       if ( (*be->be_modrdn)( be, conn, op, dn, newrdn,
-                           deloldrdn ) == 0 ) {
-                               replog( be, LDAP_REQ_MODRDN, odn, newrdn,
-                                   deloldrdn );
+#ifndef SLAPD_MULTIMASTER
+               if ( be->be_update_ndn == NULL ||
+                       strcmp( be->be_update_ndn, op->o_ndn ) == 0 )
+#endif
+               {
+                       if ( (*be->be_modrdn)( be, conn, op, dn, ndn, newrdn,
+                           deloldrdn, newSuperior ) == 0
+#ifdef SLAPD_MULTIMASTER
+                               && ( be->be_update_ndn == NULL ||
+                                       strcmp( be->be_update_ndn, op->o_ndn ) )
+#endif
+                       ) {
+                               struct replog_moddn moddn;
+                               moddn.newrdn = newrdn;
+                               moddn.deloldrdn = deloldrdn;
+                               moddn.newsup = newSuperior;
+
+                               replog( be, op, dn, &moddn );
                        }
+#ifndef SLAPD_MULTIMASTER
                } else {
-                       send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
-                           default_referral );
+                       send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
+                               be->be_update_refs ? be->be_update_refs : default_referral, NULL );
+#endif
                }
        } else {
-               send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM, NULL,
-                   "Function not implemented" );
+               send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+                       NULL, "operation not supported within namingContext", NULL, NULL );
        }
 
+cleanup:
        free( dn );
-       free( odn );
-       free( newrdn );
+       if( ndn != NULL ) free( ndn );
+       free( newrdn ); 
+       if ( newSuperior != NULL )
+               free( newSuperior );
+       if ( nnewSuperior != NULL )
+               free( nnewSuperior );
+       return rc;
 }