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575 lines
13 KiB
C
575 lines
13 KiB
C
/* modrdn.c - bdb backend modrdn routine */
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/* $OpenLDAP$ */
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/*
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* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
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* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
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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 "back-bdb.h"
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#include "external.h"
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int
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bdb_modrdn(
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Backend *be,
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Connection *conn,
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Operation *op,
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const char *dn,
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const char *ndn,
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const char *newrdn,
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int deleteoldrdn,
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const char *newSuperior
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)
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{
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struct bdb_info *bdb = (struct bdb_info *) be->be_private;
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AttributeDescription *children = slap_schema.si_ad_children;
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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 rc;
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const char *text;
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char textbuf[SLAP_TEXT_BUFLEN];
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size_t textlen = sizeof textbuf;
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DB_TXN * ltid;
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struct bdb_op_info opinfo;
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ID id;
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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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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 bdb_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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Modifications mod[2]; /* Used to delete old rdn */
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int manageDSAit = get_manageDSAit( op );
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Debug( LDAP_DEBUG_TRACE, "==>bdb_modrdn(%s,%s,%s)\n",
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dn, newrdn, (newSuperior ? newSuperior : "NULL") );
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if( newSuperior != NULL ) {
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rc = LDAP_UNWILLING_TO_PERFORM;
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text = "newSuperior not implemented (yet)";
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goto return_results;
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}
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if (0) {
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retry: /* transaction retry */
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Debug( LDAP_DEBUG_TRACE, "==>bdb_modrdn: retrying...\n", 0, 0, 0 );
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rc = txn_abort( ltid );
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ltid = NULL;
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op->o_private = NULL;
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if( rc != 0 ) {
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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}
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/* begin transaction */
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rc = txn_begin( bdb->bi_dbenv, NULL, <id, 0 );
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text = NULL;
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if( rc != 0 ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_delete: txn_begin failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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opinfo.boi_bdb = be;
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opinfo.boi_txn = ltid;
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opinfo.boi_err = 0;
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op->o_private = &opinfo;
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/* get entry */
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rc = bdb_dn2entry( be, ltid, ndn, &e, &matched, 0 );
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switch( rc ) {
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case 0:
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case DB_NOTFOUND:
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break;
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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default:
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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if ( e == 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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bdb_entry_return( be, matched );
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matched = NULL;
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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, rc = 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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goto done;
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}
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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, "bdb_modrdn: entry is referral\n",
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0, 0, 0 );
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send_ldap_result( conn, op, rc = LDAP_REFERRAL,
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e->e_dn, NULL, refs, NULL );
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ber_bvecfree( refs );
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goto done;
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}
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p_ndn = dn_parent( be, e->e_ndn );
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if ( p_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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rc = bdb_dn2entry( be, ltid, p_ndn, &p, NULL, 0 );
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switch( rc ) {
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case 0:
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case DB_NOTFOUND:
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break;
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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default:
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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if( p == NULL) {
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Debug( LDAP_DEBUG_TRACE, "bdb_modrdn: parent does not exist\n",
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0, 0, 0);
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rc = LDAP_OTHER;
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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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"bdb_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,
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"bdb_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,
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"bdb_modrdn: no parent & not root\n",
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0, 0, 0);
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rc = LDAP_INSUFFICIENT_ACCESS;
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"bdb_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 ( newSuperior != NULL ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: new parent \"%s\" requested...\n",
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newSuperior, 0, 0 );
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np_dn = ch_strdup( newSuperior );
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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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rc = bdb_dn2entry( be, ltid, np_ndn, &np, NULL, 0 );
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switch( rc ) {
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case 0:
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case DB_NOTFOUND:
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break;
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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default:
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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if( np == NULL) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: newSup(ndn=%s) not here!\n",
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np_ndn, 0, 0);
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rc = LDAP_OTHER;
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"bdb_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, ACL_WRITE ) ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: no wr to newSup children\n",
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0, 0, 0 );
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rc = LDAP_INSUFFICIENT_ACCESS;
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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, "bdb_modrdn: entry is alias\n",
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0, 0, 0 );
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rc = LDAP_ALIAS_PROBLEM;
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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, "bdb_modrdn: entry is referral\n",
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0, 0, 0 );
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rc = LDAP_OPERATIONS_ERROR;
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"bdb_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, "bdb_modrdn: new ndn=%s\n",
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new_ndn, 0, 0 );
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rc = bdb_dn2id ( be, ltid, new_ndn, &id );
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switch( rc ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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case DB_NOTFOUND:
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break;
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case 0:
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rc = LDAP_ALREADY_EXISTS;
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goto return_results;
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default:
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rc = LDAP_OTHER;
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text = "internal error";
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"bdb_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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new_rdn_type = rdn_attr_type( newrdn );
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if ( new_rdn_type == NULL ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: can't figure out type of newrdn\n",
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0, 0, 0 );
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rc = LDAP_OPERATIONS_ERROR;
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text = "unknown type used in RDN";
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goto return_results;
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}
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new_rdn_val = rdn_attr_value( newrdn );
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if ( new_rdn_val == NULL ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: could not figure out val of newrdn\n",
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0, 0, 0 );
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rc = LDAP_OPERATIONS_ERROR;
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text = "could not parse RDN value";
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goto return_results;
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}
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Debug( LDAP_DEBUG_TRACE,
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"bdb_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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"bdb_modrdn: can't figure out old_rdn from dn\n",
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0, 0, 0 );
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rc = LDAP_OTHER;
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text = "could not parse old DN";
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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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"bdb_back_modrdn: can't figure out the old_rdn type\n",
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0, 0, 0 );
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rc = LDAP_OTHER;
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text = "cannot parse RDN from old DN";
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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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"bdb_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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/* Add new attribute value to the entry */
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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].sml_desc = NULL;
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rc = slap_str2ad( new_rdn_type, &mod[0].sml_desc, &text );
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if( rc != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: %s: %s (new)\n",
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text, new_rdn_type, 0 );
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goto return_results;
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}
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mod[0].sml_bvalues = add_bvals;
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mod[0].sml_op = SLAP_MOD_SOFTADD;
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mod[0].sml_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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old_rdn_val = rdn_attr_value( old_rdn );
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if ( old_rdn_val == NULL) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: can't figure out old_rdn_val from old_rdn\n",
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0, 0, 0 );
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rc = LDAP_OTHER;
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text = "could not parse value from old RDN";
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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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mod[1].sml_desc = NULL;
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rc = slap_str2ad( old_rdn_type, &mod[1].sml_desc, &text );
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if( rc != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: %s: %s (old)\n",
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text, old_rdn_type, 0 );
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goto return_results;
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}
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mod[0].sml_next = &mod[1];
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mod[1].sml_bvalues = del_bvals;
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mod[1].sml_op = LDAP_MOD_DELETE;
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mod[1].sml_next = NULL;
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}
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/* delete old one */
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rc = bdb_dn2id_delete( be, ltid, e->e_ndn, e->e_id );
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if ( rc != 0 ) {
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switch( rc ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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rc = LDAP_OTHER;
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text = "DN index delete fail";
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goto return_results;
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}
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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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rc = bdb_dn2id_add( be, ltid, e->e_ndn, e->e_id );
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if ( rc != 0 ) {
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switch( rc ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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rc = LDAP_OTHER;
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text = "DN index add failed";
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goto return_results;
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}
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/* modify entry */
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rc = bdb_modify_internal( be, conn, op, ltid, &mod[0], e,
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&text, textbuf, textlen );
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if( rc != LDAP_SUCCESS ) {
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switch( rc ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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goto return_results;
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}
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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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rc = bdb_id2entry_update( be, ltid, e );
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if ( rc != 0 ) {
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switch( rc ) {
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto retry;
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}
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rc = LDAP_OTHER;
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text = "entry update failed";
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goto return_results;
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}
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rc = txn_commit( ltid, 0 );
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ltid = NULL;
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op->o_private = NULL;
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if( rc != 0 ) {
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Debug( LDAP_DEBUG_TRACE,
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"bdb_modrdn: txn_commit failed: %s (%d)\n",
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db_strerror(rc), rc, 0 );
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|
rc = LDAP_OTHER;
|
|
text = "commit failed";
|
|
} else {
|
|
Debug( LDAP_DEBUG_TRACE,
|
|
"bdb_modrdn: added id=%08x dn=\"%s\"\n",
|
|
e->e_id, e->e_dn, 0 );
|
|
rc = LDAP_SUCCESS;
|
|
text = NULL;
|
|
}
|
|
|
|
return_results:
|
|
send_ldap_result( conn, op, rc,
|
|
NULL, text, NULL, NULL );
|
|
|
|
if(rc == LDAP_SUCCESS && bdb->bi_txn_cp ) {
|
|
ldap_pvt_thread_yield();
|
|
txn_checkpoint( bdb->bi_dbenv,
|
|
bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
|
|
}
|
|
|
|
done:
|
|
if( new_dn != NULL ) free( new_dn );
|
|
if( new_ndn != NULL ) free( new_ndn );
|
|
|
|
if( p_dn != NULL ) free( p_dn );
|
|
if( p_ndn != NULL ) free( p_ndn );
|
|
|
|
/* LDAP v2 supporting correct attribute handling. */
|
|
if( new_rdn_type != NULL ) free(new_rdn_type);
|
|
if( new_rdn_val != NULL ) free(new_rdn_val);
|
|
if( old_rdn != NULL ) free(old_rdn);
|
|
if( old_rdn_type != NULL ) free(old_rdn_type);
|
|
if( old_rdn_val != NULL ) free(old_rdn_val);
|
|
|
|
|
|
/* LDAP v3 Support */
|
|
if ( np_dn != NULL ) free( np_dn );
|
|
if ( np_ndn != NULL ) free( np_ndn );
|
|
|
|
if( np != NULL ) {
|
|
/* free new parent and writer lock */
|
|
bdb_entry_return( be, np );
|
|
}
|
|
|
|
if( p != NULL ) {
|
|
/* free parent and writer lock */
|
|
bdb_entry_return( be, p );
|
|
}
|
|
|
|
/* free entry */
|
|
if( e != NULL ) {
|
|
bdb_entry_return( be, e );
|
|
}
|
|
|
|
if( ltid != NULL ) {
|
|
txn_abort( ltid );
|
|
op->o_private = NULL;
|
|
}
|
|
|
|
return rc;
|
|
}
|