1 /* $NetBSD: modrdn.c,v 1.1.1.4 2014/05/28 09:58:50 tron Exp $ */ 2 3 /* $OpenLDAP$ */ 4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>. 5 * 6 * Copyright 1999-2014 The OpenLDAP Foundation. 7 * Portions Copyright 2001-2003 Pierangelo Masarati. 8 * Portions Copyright 1999-2003 Howard Chu. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted only as authorized by the OpenLDAP 13 * Public License. 14 * 15 * A copy of this license is available in the file LICENSE in the 16 * top-level directory of the distribution or, alternatively, at 17 * <http://www.OpenLDAP.org/license.html>. 18 */ 19 /* ACKNOWLEDGEMENTS: 20 * This work was initially developed by the Howard Chu for inclusion 21 * in OpenLDAP Software and subsequently enhanced by Pierangelo 22 * Masarati. 23 */ 24 25 #include "portable.h" 26 27 #include <stdio.h> 28 29 #include <ac/socket.h> 30 #include <ac/string.h> 31 32 #include "slap.h" 33 #include "../back-ldap/back-ldap.h" 34 #include "back-meta.h" 35 36 int 37 meta_back_modrdn( Operation *op, SlapReply *rs ) 38 { 39 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; 40 metatarget_t *mt; 41 metaconn_t *mc; 42 int candidate = -1; 43 struct berval mdn = BER_BVNULL, 44 mnewSuperior = BER_BVNULL; 45 dncookie dc; 46 int msgid; 47 ldap_back_send_t retrying = LDAP_BACK_RETRYING; 48 LDAPControl **ctrls = NULL; 49 struct berval newrdn = BER_BVNULL; 50 51 mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR ); 52 if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) { 53 return rs->sr_err; 54 } 55 56 assert( mc->mc_conns[ candidate ].msc_ld != NULL ); 57 58 mt = mi->mi_targets[ candidate ]; 59 dc.target = mt; 60 dc.conn = op->o_conn; 61 dc.rs = rs; 62 63 if ( op->orr_newSup ) { 64 65 /* 66 * NOTE: the newParent, if defined, must be on the 67 * same target as the entry to be renamed. This check 68 * has been anticipated in meta_back_getconn() 69 */ 70 /* 71 * FIXME: one possibility is to delete the entry 72 * from one target and add it to the other; 73 * unfortunately we'd need write access to both, 74 * which is nearly impossible; for administration 75 * needs, the rootdn of the metadirectory could 76 * be mapped to an administrative account on each 77 * target (the binddn?); we'll see. 78 */ 79 /* 80 * NOTE: we need to port the identity assertion 81 * feature from back-ldap 82 */ 83 84 /* needs LDAPv3 */ 85 switch ( mt->mt_version ) { 86 case LDAP_VERSION3: 87 break; 88 89 case 0: 90 if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) { 91 break; 92 } 93 /* fall thru */ 94 95 default: 96 /* op->o_protocol cannot be anything but LDAPv3, 97 * otherwise wouldn't be here */ 98 rs->sr_err = LDAP_UNWILLING_TO_PERFORM; 99 send_ldap_result( op, rs ); 100 goto cleanup; 101 } 102 103 /* 104 * Rewrite the new superior, if defined and required 105 */ 106 dc.ctx = "newSuperiorDN"; 107 if ( ldap_back_dn_massage( &dc, op->orr_newSup, &mnewSuperior ) ) { 108 rs->sr_err = LDAP_OTHER; 109 send_ldap_result( op, rs ); 110 goto cleanup; 111 } 112 } 113 114 /* 115 * Rewrite the modrdn dn, if required 116 */ 117 dc.ctx = "modrDN"; 118 if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) { 119 rs->sr_err = LDAP_OTHER; 120 send_ldap_result( op, rs ); 121 goto cleanup; 122 } 123 124 /* NOTE: we need to copy the newRDN in case it was formed 125 * from a DN by simply changing the length (ITS#5397) */ 126 newrdn = op->orr_newrdn; 127 if ( newrdn.bv_val[ newrdn.bv_len ] != '\0' ) { 128 ber_dupbv_x( &newrdn, &op->orr_newrdn, op->o_tmpmemctx ); 129 } 130 131 retry:; 132 ctrls = op->o_ctrls; 133 if ( meta_back_controls_add( op, rs, mc, candidate, &ctrls ) != LDAP_SUCCESS ) 134 { 135 send_ldap_result( op, rs ); 136 goto cleanup; 137 } 138 139 rs->sr_err = ldap_rename( mc->mc_conns[ candidate ].msc_ld, 140 mdn.bv_val, newrdn.bv_val, 141 mnewSuperior.bv_val, op->orr_deleteoldrdn, 142 ctrls, NULL, &msgid ); 143 rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid, 144 mt->mt_timeout[ SLAP_OP_MODRDN ], ( LDAP_BACK_SENDRESULT | retrying ) ); 145 if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) { 146 retrying &= ~LDAP_BACK_RETRYING; 147 if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) { 148 /* if the identity changed, there might be need to re-authz */ 149 (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls ); 150 goto retry; 151 } 152 } 153 154 cleanup:; 155 (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls ); 156 157 if ( mdn.bv_val != op->o_req_dn.bv_val ) { 158 free( mdn.bv_val ); 159 BER_BVZERO( &mdn ); 160 } 161 162 if ( !BER_BVISNULL( &mnewSuperior ) 163 && mnewSuperior.bv_val != op->orr_newSup->bv_val ) 164 { 165 free( mnewSuperior.bv_val ); 166 BER_BVZERO( &mnewSuperior ); 167 } 168 169 if ( newrdn.bv_val != op->orr_newrdn.bv_val ) { 170 op->o_tmpfree( newrdn.bv_val, op->o_tmpmemctx ); 171 } 172 173 if ( mc ) { 174 meta_back_release_conn( mi, mc ); 175 } 176 177 return rs->sr_err; 178 } 179 180