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518 lines
13 KiB
C
518 lines
13 KiB
C
/* modrdn.c - ldbm backend modrdn routine */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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*/
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/*
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* LDAP v3 newSuperior support. Add new rdn as an attribute.
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* (Full support for v2 also used software/ideas contributed
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* by Roy Hooper rhooper@cyberus.ca, thanks to him for his
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* submission!.)
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*
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* Copyright 1999, Juan C. Gomez, All rights reserved.
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* This software is not subject to any license of Silicon Graphics
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* Inc. or Purdue University.
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*
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* Redistribution and use in source and binary forms are permitted
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* without restriction or fee of any kind as long as this notice
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* is preserved.
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*
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include <ac/socket.h>
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#include "slap.h"
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#include "back-ldbm.h"
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#include "proto-back-ldbm.h"
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int
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ldbm_back_modrdn(
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Backend *be,
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Connection *conn,
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Operation *op,
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char *dn,
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char *ndn,
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char *newrdn,
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int deleteoldrdn,
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char *newSuperior
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)
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{
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struct ldbminfo *li = (struct ldbminfo *) be->be_private;
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char *p_dn = NULL, *p_ndn = NULL;
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char *new_dn = NULL, *new_ndn = NULL;
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Entry *e, *p = NULL;
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Entry *matched;
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int rootlock = 0;
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int rc = -1;
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/* Added to support LDAP v2 correctly (deleteoldrdn thing) */
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char *new_rdn_val = NULL; /* Val of new rdn */
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char *new_rdn_type = NULL; /* Type of new rdn */
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char *old_rdn = NULL; /* Old rdn's attr type & val */
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char *old_rdn_type = NULL; /* Type of old rdn attr. */
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char *old_rdn_val = NULL; /* Old rdn attribute value */
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/* Added to support newSuperior */
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Entry *np = NULL; /* newSuperior Entry */
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char *np_dn = NULL; /* newSuperior dn */
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char *np_ndn = NULL; /* newSuperior ndn */
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char *new_parent_dn = NULL; /* np_dn, p_dn, or NULL */
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/* Used to interface with ldbm_modify_internal() */
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struct berval add_bv; /* Stores new rdn att */
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struct berval *add_bvals[2]; /* Stores new rdn att */
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struct berval del_bv; /* Stores old rdn att */
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struct berval *del_bvals[2]; /* Stores old rdn att */
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LDAPModList mod[2]; /* Used to delete old rdn */
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int manageDSAit = get_manageDSAit( op );
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Debug( LDAP_DEBUG_TRACE, "==>ldbm_back_modrdn(newSuperior=%s)\n",
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(newSuperior ? newSuperior : "NULL"),
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0, 0 );
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/* get entry with writer lock */
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if ( (e = dn2entry_w( be, ndn, &matched )) == NULL ) {
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char* matched_dn = NULL;
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struct berval** refs = NULL;
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if( matched != NULL ) {
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matched_dn = strdup( matched->e_dn );
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refs = is_entry_referral( matched )
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? get_entry_referrals( be, conn, op, matched )
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: NULL;
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cache_return_entry_r( &li->li_cache, matched );
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} else {
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refs = default_referral;
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}
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send_ldap_result( conn, op, LDAP_REFERRAL,
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matched_dn, NULL, refs, NULL );
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if ( matched != NULL ) {
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ber_bvecfree( refs );
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free( matched_dn );
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}
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return( -1 );
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}
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#ifdef SLAPD_CHILD_MODIFICATION_WITH_ENTRY_ACL
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if ( ! access_allowed( be, conn, op, e,
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"entry", NULL, ACL_WRITE ) )
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{
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Debug( LDAP_DEBUG_TRACE, "no access to entry\n", 0,
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0, 0 );
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send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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#endif
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if (!manageDSAit && is_entry_referral( e ) ) {
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/* parent is a referral, don't allow add */
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/* parent is an alias, don't allow add */
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struct berval **refs = get_entry_referrals( be,
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conn, op, e );
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
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0, 0 );
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send_ldap_result( conn, op, LDAP_REFERRAL,
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e->e_dn, NULL, refs, NULL );
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ber_bvecfree( refs );
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goto return_results;
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}
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if ( (p_ndn = dn_parent( be, e->e_ndn )) != NULL ) {
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/* Make sure parent entry exist and we can write its
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* children.
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*/
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if( (p = dn2entry_w( be, p_ndn, NULL )) == NULL) {
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Debug( LDAP_DEBUG_TRACE, "parent does not exist\n",
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0, 0, 0);
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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/* check parent for "children" acl */
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if ( ! access_allowed( be, conn, op, p,
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"children", NULL, ACL_WRITE ) )
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{
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Debug( LDAP_DEBUG_TRACE, "no access to parent\n", 0,
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0, 0 );
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send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: wr to children of entry %s OK\n",
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p_ndn, 0, 0 );
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p_dn = dn_parent( be, e->e_dn );
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Debug( LDAP_DEBUG_TRACE, "ldbm_back_modrdn: parent dn=%s\n",
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p_dn, 0, 0 );
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} else {
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/* no parent, modrdn entry directly under root */
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if( ! be_isroot( be, op->o_ndn ) ) {
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Debug( LDAP_DEBUG_TRACE, "no parent & not root\n",
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0, 0, 0);
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send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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ldap_pvt_thread_mutex_lock(&li->li_root_mutex);
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rootlock = 1;
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: no parent, locked root\n",
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0, 0, 0 );
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}
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new_parent_dn = p_dn; /* New Parent unless newSuperior given */
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if ( (np_dn = newSuperior) != NULL) {
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: new parent requested...\n",
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0, 0, 0 );
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np_ndn = ch_strdup( np_dn );
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(void) dn_normalize( np_ndn );
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/* newSuperior == oldParent?, if so ==> ERROR */
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/* newSuperior == entry being moved?, if so ==> ERROR */
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/* Get Entry with dn=newSuperior. Does newSuperior exist? */
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if( (np = dn2entry_w( be, np_ndn, NULL )) == NULL) {
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: newSup(ndn=%s) not here!\n",
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np_ndn, 0, 0);
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: wr to new parent OK np=%p, id=%ld\n",
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np, np->e_id, 0 );
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/* check newSuperior for "children" acl */
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if ( !access_allowed( be, conn, op, np, "children", NULL,
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ACL_WRITE ) )
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{
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: no wr to newSup children\n",
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0, 0, 0 );
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send_ldap_result( conn, op, LDAP_INSUFFICIENT_ACCESS,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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if ( is_entry_alias( np ) ) {
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/* entry is an alias, don't allow bind */
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Debug( LDAP_DEBUG_TRACE, "entry is alias\n", 0,
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0, 0 );
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send_ldap_result( conn, op, LDAP_ALIAS_PROBLEM,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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if ( is_entry_referral( np ) ) {
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/* parent is a referral, don't allow add */
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/* parent is an alias, don't allow add */
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
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0, 0 );
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: wr to new parent's children OK\n",
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0, 0 , 0 );
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new_parent_dn = np_dn;
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}
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/* Build target dn and make sure target entry doesn't exist already. */
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build_new_dn( &new_dn, e->e_dn, new_parent_dn, newrdn );
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new_ndn = ch_strdup(new_dn);
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(void) dn_normalize( new_ndn );
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Debug( LDAP_DEBUG_TRACE, "ldbm_back_modrdn: new ndn=%s\n",
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new_ndn, 0, 0 );
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/* check for abandon */
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ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
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if ( op->o_abandon ) {
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ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
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goto return_results;
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}
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ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
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if (dn2id ( be, new_ndn ) != NOID) {
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send_ldap_result( conn, op, LDAP_ALREADY_EXISTS,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: new ndn=%s does not exist\n",
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new_ndn, 0, 0 );
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/* Get attribute type and attribute value of our new rdn, we will
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* need to add that to our new entry
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*/
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if ( (new_rdn_type = rdn_attr_type( newrdn )) == NULL ) {
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: can't figure out type of newrdn\n",
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0, 0, 0 );
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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if ( (new_rdn_val = rdn_attr_value( newrdn )) == NULL ) {
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: can't figure out val of newrdn\n",
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0, 0, 0 );
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: new_rdn_val=\"%s\", new_rdn_type=\"%s\"\n",
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new_rdn_val, new_rdn_type, 0 );
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/* Retrieve the old rdn from the entry's dn */
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if ( (old_rdn = dn_rdn( be, dn )) == NULL ) {
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: can't figure out old_rdn from dn\n",
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0, 0, 0 );
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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if ( (old_rdn_type = rdn_attr_type( old_rdn )) == NULL ) {
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: can't figure out the old_rdn type\n",
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0, 0, 0 );
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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if ( strcasecmp( old_rdn_type, new_rdn_type ) != 0 ) {
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/* Not a big deal but we may say something */
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: old_rdn_type=%s, new_rdn_type=%s!\n",
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old_rdn_type, new_rdn_type, 0 );
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}
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#ifdef DNS_DN
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if ( dn_type( old_rdn ) == DN_X500 ) {
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#endif
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Debug( LDAP_DEBUG_TRACE, "ldbm_back_modrdn: DN_X500\n",
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0, 0, 0 );
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/* Add new attribute value to the entry.
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*/
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add_bvals[0] = &add_bv; /* Array of bervals */
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add_bvals[1] = NULL;
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add_bv.bv_val = new_rdn_val;
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add_bv.bv_len = strlen(new_rdn_val);
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mod[0].ml_type = new_rdn_type;
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mod[0].ml_bvalues = add_bvals;
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mod[0].ml_op = LDAP_MOD_SOFTADD;
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mod[0].ml_next = NULL;
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/* Remove old rdn value if required */
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if (deleteoldrdn) {
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/* Get value of old rdn */
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if ((old_rdn_val = rdn_attr_value( old_rdn ))
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== NULL) {
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: can't figure out old_rdn_val from old_rdn\n",
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0, 0, 0 );
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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del_bvals[0] = &del_bv; /* Array of bervals */
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del_bvals[1] = NULL;
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/* Remove old value of rdn as an attribute. */
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del_bv.bv_val = old_rdn_val;
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del_bv.bv_len = strlen(old_rdn_val);
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/* No need to normalize old_rdn_type, delete_values()
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* does that for us
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*/
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mod[0].ml_next = &mod[1];
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mod[1].ml_type = old_rdn_type;
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mod[1].ml_bvalues = del_bvals;
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mod[1].ml_op = LDAP_MOD_DELETE;
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mod[1].ml_next = NULL;
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: removing old_rdn_val=%s\n",
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old_rdn_val, 0, 0 );
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}
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#ifdef DNS_DN
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} else {
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Debug( LDAP_DEBUG_TRACE, "ldbm_back_modrdn: DNS DN\n",
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0, 0, 0 );
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/* XXXV3: not sure of what to do here */
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Debug( LDAP_DEBUG_TRACE,
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"ldbm_back_modrdn: not fully implemented...\n",
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0, 0, 0 );
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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#endif
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/* check for abandon */
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ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
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if ( op->o_abandon ) {
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ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
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goto return_results;
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}
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ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
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/* delete old one */
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if ( dn2id_delete( be, e->e_ndn, e->e_id ) != 0 ) {
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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(void) cache_delete_entry( &li->li_cache, e );
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/* XXX: there is no going back! */
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free( e->e_dn );
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free( e->e_ndn );
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e->e_dn = new_dn;
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e->e_ndn = new_ndn;
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new_dn = NULL;
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new_ndn = NULL;
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/* add new one */
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if ( dn2id_add( be, e->e_ndn, e->e_id ) != 0 ) {
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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/* modify memory copy of entry */
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if ( ldbm_modify_internal( be, conn, op, dn, &mod[0], e )
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!= 0 ) {
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goto return_results;
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}
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(void) cache_update_entry( &li->li_cache, e );
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/* NOTE: after this you must not free new_dn or new_ndn!
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* They are used by cache.
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*/
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/* id2entry index */
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if ( id2entry_add( be, e ) != 0 ) {
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entry_free( e );
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send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
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NULL, NULL, NULL, NULL );
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goto return_results;
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}
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send_ldap_result( conn, op, LDAP_SUCCESS,
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NULL, NULL, NULL, NULL );
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rc = 0;
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return_results:
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if( new_dn != NULL ) free( new_dn );
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if( new_ndn != NULL ) free( new_ndn );
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if( p_dn != NULL ) free( p_dn );
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if( p_ndn != NULL ) free( p_ndn );
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/* LDAP v2 supporting correct attribute handling. */
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if( new_rdn_type != NULL ) free(new_rdn_type);
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if( new_rdn_val != NULL ) free(new_rdn_val);
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if( old_rdn != NULL ) free(old_rdn);
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if( old_rdn_type != NULL ) free(old_rdn_type);
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if( old_rdn_val != NULL ) free(old_rdn_val);
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/* LDAP v3 Support */
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if ( np_dn != NULL ) free( np_dn );
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if ( np_ndn != NULL ) free( np_ndn );
|
|
|
|
if( np != NULL ) {
|
|
/* free new parent and writer lock */
|
|
cache_return_entry_w( &li->li_cache, np );
|
|
}
|
|
|
|
if( p != NULL ) {
|
|
/* free parent and writer lock */
|
|
cache_return_entry_w( &li->li_cache, p );
|
|
}
|
|
|
|
if ( rootlock ) {
|
|
/* release root writer lock */
|
|
ldap_pvt_thread_mutex_unlock(&li->li_root_mutex);
|
|
}
|
|
|
|
/* free entry and writer lock */
|
|
cache_return_entry_w( &li->li_cache, e );
|
|
return( rc );
|
|
}
|