openldap/servers/slapd/delete.c

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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
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* Copyright 1998-2004 The OpenLDAP Foundation.
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* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
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*/
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/* Portions Copyright (c) 1995 Regents of the University of Michigan.
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* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that this notice is preserved and that due credit is given
* to the University of Michigan at Ann Arbor. The name of the University
* may not be used to endorse or promote products derived from this
* software without specific prior written permission. This software
* is provided ``as is'' without express or implied warranty.
*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
#include <ac/socket.h>
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#include "slap.h"
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#include "lutil.h"
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#ifdef LDAP_SLAPI
#include "slapi/slapi.h"
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#endif
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int
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do_delete(
Operation *op,
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SlapReply *rs )
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{
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struct berval dn = BER_BVNULL;
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Debug( LDAP_DEBUG_TRACE, "do_delete\n", 0, 0, 0 );
/*
* Parse the delete request. It looks like this:
*
* DelRequest := DistinguishedName
*/
if ( ber_scanf( op->o_ber, "m", &dn ) == LBER_ERROR ) {
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Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
return SLAPD_DISCONNECT;
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}
if( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY, "do_delete: get_ctrls failed\n", 0, 0, 0 );
goto cleanup;
}
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rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
op->o_tmpmemctx );
if( rs->sr_err != LDAP_SUCCESS ) {
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Debug( LDAP_DEBUG_ANY,
"do_delete: invalid dn (%s)\n", dn.bv_val, 0, 0 );
send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
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goto cleanup;
}
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if( op->o_req_ndn.bv_len == 0 ) {
Debug( LDAP_DEBUG_ANY, "do_delete: root dse!\n", 0, 0, 0 );
/* protocolError would likely be a more appropriate error */
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"cannot delete the root DSE" );
goto cleanup;
} else if ( bvmatch( &op->o_req_ndn, &frontendDB->be_schemandn ) ) {
Debug( LDAP_DEBUG_ANY, "do_delete: subschema subentry!\n", 0, 0, 0 );
/* protocolError would likely be a more appropriate error */
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"cannot delete the root DSE" );
goto cleanup;
}
Statslog( LDAP_DEBUG_STATS, "conn=%lu op=%lu DEL dn=\"%s\"\n",
op->o_connid, op->o_opid, op->o_req_dn.bv_val, 0, 0 );
op->o_bd = frontendDB;
rs->sr_err = frontendDB->be_delete( op, rs );
cleanup:;
slap_graduate_commit_csn( op );
op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
return rs->sr_err;
}
int
fe_op_delete( Operation *op, SlapReply *rs )
{
struct berval pdn = BER_BVNULL;
int manageDSAit;
manageDSAit = get_manageDSAit( op );
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/*
* We could be serving multiple database backends. Select the
* appropriate one, or send a referral to our "referral server"
* if we don't hold it.
*/
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op->o_bd = select_backend( &op->o_req_ndn, manageDSAit, 0 );
if ( op->o_bd == NULL ) {
rs->sr_ref = referral_rewrite( default_referral,
NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
if (!rs->sr_ref) rs->sr_ref = default_referral;
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if ( rs->sr_ref != NULL ) {
rs->sr_err = LDAP_REFERRAL;
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send_ldap_result( op, rs );
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if (rs->sr_ref != default_referral) ber_bvarray_free( rs->sr_ref );
} else {
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
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"no global superior knowledge" );
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}
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goto cleanup;
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}
/* check restrictions */
if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
goto cleanup;
}
/* check for referrals */
if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
goto cleanup;
}
#if defined( LDAP_SLAPI )
#define pb op->o_pb
if ( pb ) {
slapi_int_pblock_set_operation( pb, op );
slapi_pblock_set( pb, SLAPI_DELETE_TARGET, (void *)op->o_req_dn.bv_val );
slapi_pblock_set( pb, SLAPI_MANAGEDSAIT, (void *)manageDSAit );
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rs->sr_err = slapi_int_call_plugins( op->o_bd,
SLAPI_PLUGIN_PRE_DELETE_FN, pb );
if ( rs->sr_err < 0 ) {
/*
* A preoperation plugin failure will abort the
* entire operation.
*/
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Debug (LDAP_DEBUG_TRACE, "do_delete: "
"delete preoperation plugin failed.\n", 0, 0, 0);
if ( ( slapi_pblock_get( pb, SLAPI_RESULT_CODE,
(void *)&rs->sr_err ) != 0 ) ||
rs->sr_err == LDAP_SUCCESS )
{
rs->sr_err = LDAP_OTHER;
}
goto cleanup;
}
}
#endif /* defined( LDAP_SLAPI ) */
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/*
* do the delete if 1 && (2 || 3)
* 1) there is a delete 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 update_ndn.
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*/
if ( op->o_bd->be_delete ) {
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/* do the update here */
int repl_user = be_isupdate( op );
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#ifndef SLAPD_MULTIMASTER
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if ( !SLAP_SHADOW(op->o_bd) || repl_user )
#endif
{
struct berval org_req_dn = BER_BVNULL;
struct berval org_req_ndn = BER_BVNULL;
struct berval org_dn = BER_BVNULL;
struct berval org_ndn = BER_BVNULL;
int org_managedsait;
slap_callback cb = { NULL, slap_replog_cb, NULL, NULL };
if ( !repl_user ) {
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struct berval csn = BER_BVNULL;
char csnbuf[LDAP_LUTIL_CSNSTR_BUFSIZE];
slap_get_csn( op, csnbuf, sizeof(csnbuf), &csn, 1 );
}
#ifdef SLAPD_MULTIMASTER
if ( !op->o_bd->be_update_ndn.bv_len || !repl_user )
#endif
{
cb.sc_next = op->o_callback;
op->o_callback = &cb;
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}
op->o_bd->be_delete( op, rs );
org_req_dn = op->o_req_dn;
org_req_ndn = op->o_req_ndn;
org_dn = op->o_dn;
org_ndn = op->o_ndn;
org_managedsait = get_manageDSAit( op );
op->o_dn = op->o_bd->be_rootdn;
op->o_ndn = op->o_bd->be_rootndn;
op->o_managedsait = 1;
while ( rs->sr_err == LDAP_SUCCESS &&
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op->o_delete_glue_parent )
{
op->o_delete_glue_parent = 0;
if ( !be_issuffix( op->o_bd, &op->o_req_ndn )) {
slap_callback cb = { NULL };
cb.sc_response = slap_null_cb;
dnParent( &op->o_req_ndn, &pdn );
op->o_req_dn = pdn;
op->o_req_ndn = pdn;
op->o_callback = &cb;
op->o_bd->be_delete( op, rs );
} else {
break;
}
}
op->o_managedsait = org_managedsait;
op->o_dn = org_dn;
op->o_ndn = org_ndn;
op->o_req_dn = org_req_dn;
op->o_req_ndn = org_req_ndn;
op->o_delete_glue_parent = 0;
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#ifndef SLAPD_MULTIMASTER
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} else {
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BerVarray defref = op->o_bd->be_update_refs
? op->o_bd->be_update_refs : default_referral;
if ( defref != NULL ) {
rs->sr_ref = referral_rewrite( defref,
NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
if (!rs->sr_ref) rs->sr_ref = defref;
rs->sr_err = LDAP_REFERRAL;
send_ldap_result( op, rs );
if (rs->sr_ref != defref) ber_bvarray_free( rs->sr_ref );
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} else {
send_ldap_error( op, rs,
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LDAP_UNWILLING_TO_PERFORM,
"shadow context; no update referral" );
}
#endif
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}
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} else {
send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
"operation not supported within namingContext" );
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}
#if defined( LDAP_SLAPI )
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if ( pb != NULL && slapi_int_call_plugins( op->o_bd,
SLAPI_PLUGIN_POST_DELETE_FN, pb ) < 0)
{
Debug(LDAP_DEBUG_TRACE,
"do_delete: delete postoperation plugins failed\n",
0, 0, 0 );
}
#endif /* defined( LDAP_SLAPI ) */
cleanup:;
return rs->sr_err;
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}