diff options
Diffstat (limited to 'servers/slapd/back-meta/modrdn.c')
| -rw-r--r-- | servers/slapd/back-meta/modrdn.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/servers/slapd/back-meta/modrdn.c b/servers/slapd/back-meta/modrdn.c new file mode 100644 index 0000000..f14c23b --- /dev/null +++ b/servers/slapd/back-meta/modrdn.c @@ -0,0 +1,177 @@ +/* $OpenLDAP$ */ +/* This work is part of OpenLDAP Software <http://www.openldap.org/>. + * + * Copyright 1999-2021 The OpenLDAP Foundation. + * Portions Copyright 2001-2003 Pierangelo Masarati. + * Portions Copyright 1999-2003 Howard Chu. + * 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>. + */ +/* ACKNOWLEDGEMENTS: + * This work was initially developed by the Howard Chu for inclusion + * in OpenLDAP Software and subsequently enhanced by Pierangelo + * Masarati. + */ + +#include "portable.h" + +#include <stdio.h> + +#include <ac/socket.h> +#include <ac/string.h> + +#include "slap.h" +#include "../back-ldap/back-ldap.h" +#include "back-meta.h" + +int +meta_back_modrdn( Operation *op, SlapReply *rs ) +{ + metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; + metatarget_t *mt; + metaconn_t *mc; + int candidate = -1; + struct berval mdn = BER_BVNULL, + mnewSuperior = BER_BVNULL; + dncookie dc; + int msgid; + ldap_back_send_t retrying = LDAP_BACK_RETRYING; + LDAPControl **ctrls = NULL; + struct berval newrdn = BER_BVNULL; + + mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR ); + if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) { + return rs->sr_err; + } + + assert( mc->mc_conns[ candidate ].msc_ld != NULL ); + + mt = mi->mi_targets[ candidate ]; + dc.target = mt; + dc.conn = op->o_conn; + dc.rs = rs; + + if ( op->orr_newSup ) { + + /* + * NOTE: the newParent, if defined, must be on the + * same target as the entry to be renamed. This check + * has been anticipated in meta_back_getconn() + */ + /* + * FIXME: one possibility is to delete the entry + * from one target and add it to the other; + * unfortunately we'd need write access to both, + * which is nearly impossible; for administration + * needs, the rootdn of the metadirectory could + * be mapped to an administrative account on each + * target (the binddn?); we'll see. + */ + /* + * NOTE: we need to port the identity assertion + * feature from back-ldap + */ + + /* needs LDAPv3 */ + switch ( mt->mt_version ) { + case LDAP_VERSION3: + break; + + case 0: + if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) { + break; + } + /* fall thru */ + + default: + /* op->o_protocol cannot be anything but LDAPv3, + * otherwise wouldn't be here */ + rs->sr_err = LDAP_UNWILLING_TO_PERFORM; + send_ldap_result( op, rs ); + goto cleanup; + } + + /* + * Rewrite the new superior, if defined and required + */ + dc.ctx = "newSuperiorDN"; + if ( ldap_back_dn_massage( &dc, op->orr_newSup, &mnewSuperior ) ) { + rs->sr_err = LDAP_OTHER; + send_ldap_result( op, rs ); + goto cleanup; + } + } + + /* + * Rewrite the modrdn dn, if required + */ + dc.ctx = "modrDN"; + if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) { + rs->sr_err = LDAP_OTHER; + send_ldap_result( op, rs ); + goto cleanup; + } + + /* NOTE: we need to copy the newRDN in case it was formed + * from a DN by simply changing the length (ITS#5397) */ + newrdn = op->orr_newrdn; + if ( newrdn.bv_val[ newrdn.bv_len ] != '\0' ) { + ber_dupbv_x( &newrdn, &op->orr_newrdn, op->o_tmpmemctx ); + } + +retry:; + ctrls = op->o_ctrls; + if ( meta_back_controls_add( op, rs, mc, candidate, &ctrls ) != LDAP_SUCCESS ) + { + send_ldap_result( op, rs ); + goto cleanup; + } + + rs->sr_err = ldap_rename( mc->mc_conns[ candidate ].msc_ld, + mdn.bv_val, newrdn.bv_val, + mnewSuperior.bv_val, op->orr_deleteoldrdn, + ctrls, NULL, &msgid ); + rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid, + mt->mt_timeout[ SLAP_OP_MODRDN ], ( LDAP_BACK_SENDRESULT | retrying ) ); + if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) { + retrying &= ~LDAP_BACK_RETRYING; + if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) { + /* if the identity changed, there might be need to re-authz */ + (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls ); + goto retry; + } + } + +cleanup:; + (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls ); + + if ( mdn.bv_val != op->o_req_dn.bv_val ) { + free( mdn.bv_val ); + BER_BVZERO( &mdn ); + } + + if ( !BER_BVISNULL( &mnewSuperior ) + && mnewSuperior.bv_val != op->orr_newSup->bv_val ) + { + free( mnewSuperior.bv_val ); + BER_BVZERO( &mnewSuperior ); + } + + if ( newrdn.bv_val != op->orr_newrdn.bv_val ) { + op->o_tmpfree( newrdn.bv_val, op->o_tmpmemctx ); + } + + if ( mc ) { + meta_back_release_conn( mi, mc ); + } + + return rs->sr_err; +} + |