1/* $OpenLDAP$ */ 2/* This work is part of OpenLDAP Software <http://www.openldap.org/>. 3 * 4 * Copyright 1999-2011 The OpenLDAP Foundation. 5 * Portions Copyright 2001-2003 Pierangelo Masarati. 6 * Portions Copyright 1999-2003 Howard Chu. 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted only as authorized by the OpenLDAP 11 * Public License. 12 * 13 * A copy of this license is available in the file LICENSE in the 14 * top-level directory of the distribution or, alternatively, at 15 * <http://www.OpenLDAP.org/license.html>. 16 */ 17/* ACKNOWLEDGEMENTS: 18 * This work was initially developed by the Howard Chu for inclusion 19 * in OpenLDAP Software and subsequently enhanced by Pierangelo 20 * Masarati. 21 */ 22 23#include "portable.h" 24 25#include <stdio.h> 26 27#include <ac/string.h> 28#include <ac/socket.h> 29 30#include "slap.h" 31#include "../back-ldap/back-ldap.h" 32#include "back-meta.h" 33 34int 35meta_back_modify( Operation *op, SlapReply *rs ) 36{ 37 metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; 38 metatarget_t *mt; 39 metaconn_t *mc; 40 int rc = 0; 41 LDAPMod **modv = NULL; 42 LDAPMod *mods = NULL; 43 Modifications *ml; 44 int candidate = -1, i; 45 int isupdate; 46 struct berval mdn = BER_BVNULL; 47 struct berval mapped; 48 dncookie dc; 49 int msgid; 50 ldap_back_send_t retrying = LDAP_BACK_RETRYING; 51 LDAPControl **ctrls = NULL; 52 53 mc = meta_back_getconn( op, rs, &candidate, LDAP_BACK_SENDERR ); 54 if ( !mc || !meta_back_dobind( op, rs, mc, LDAP_BACK_SENDERR ) ) { 55 return rs->sr_err; 56 } 57 58 assert( mc->mc_conns[ candidate ].msc_ld != NULL ); 59 60 /* 61 * Rewrite the modify dn, if needed 62 */ 63 mt = mi->mi_targets[ candidate ]; 64 dc.target = mt; 65 dc.conn = op->o_conn; 66 dc.rs = rs; 67 dc.ctx = "modifyDN"; 68 69 if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) { 70 send_ldap_result( op, rs ); 71 goto cleanup; 72 } 73 74 for ( i = 0, ml = op->orm_modlist; ml; i++ ,ml = ml->sml_next ) 75 ; 76 77 mods = ch_malloc( sizeof( LDAPMod )*i ); 78 if ( mods == NULL ) { 79 rs->sr_err = LDAP_OTHER; 80 send_ldap_result( op, rs ); 81 goto cleanup; 82 } 83 modv = ( LDAPMod ** )ch_malloc( ( i + 1 )*sizeof( LDAPMod * ) ); 84 if ( modv == NULL ) { 85 rs->sr_err = LDAP_OTHER; 86 send_ldap_result( op, rs ); 87 goto cleanup; 88 } 89 90 dc.ctx = "modifyAttrDN"; 91 isupdate = be_shadow_update( op ); 92 for ( i = 0, ml = op->orm_modlist; ml; ml = ml->sml_next ) { 93 int j, is_oc = 0; 94 95 if ( !isupdate && !get_relax( op ) && ml->sml_desc->ad_type->sat_no_user_mod ) 96 { 97 continue; 98 } 99 100 if ( ml->sml_desc == slap_schema.si_ad_objectClass 101 || ml->sml_desc == slap_schema.si_ad_structuralObjectClass ) 102 { 103 is_oc = 1; 104 mapped = ml->sml_desc->ad_cname; 105 106 } else { 107 ldap_back_map( &mt->mt_rwmap.rwm_at, 108 &ml->sml_desc->ad_cname, &mapped, 109 BACKLDAP_MAP ); 110 if ( BER_BVISNULL( &mapped ) || BER_BVISEMPTY( &mapped ) ) { 111 continue; 112 } 113 } 114 115 modv[ i ] = &mods[ i ]; 116 mods[ i ].mod_op = ml->sml_op | LDAP_MOD_BVALUES; 117 mods[ i ].mod_type = mapped.bv_val; 118 119 /* 120 * FIXME: dn-valued attrs should be rewritten 121 * to allow their use in ACLs at the back-ldap 122 * level. 123 */ 124 if ( ml->sml_values != NULL ) { 125 if ( is_oc ) { 126 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) 127 ; 128 mods[ i ].mod_bvalues = 129 (struct berval **)ch_malloc( ( j + 1 ) * 130 sizeof( struct berval * ) ); 131 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); ) { 132 struct ldapmapping *mapping; 133 134 ldap_back_mapping( &mt->mt_rwmap.rwm_oc, 135 &ml->sml_values[ j ], &mapping, BACKLDAP_MAP ); 136 137 if ( mapping == NULL ) { 138 if ( mt->mt_rwmap.rwm_oc.drop_missing ) { 139 continue; 140 } 141 mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ]; 142 143 } else { 144 mods[ i ].mod_bvalues[ j ] = &mapping->dst; 145 } 146 j++; 147 } 148 mods[ i ].mod_bvalues[ j ] = NULL; 149 150 } else { 151 if ( ml->sml_desc->ad_type->sat_syntax == 152 slap_schema.si_syn_distinguishedName ) 153 { 154 ( void )ldap_dnattr_rewrite( &dc, ml->sml_values ); 155 if ( ml->sml_values == NULL ) { 156 continue; 157 } 158 } 159 160 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) 161 ; 162 mods[ i ].mod_bvalues = 163 (struct berval **)ch_malloc( ( j + 1 ) * 164 sizeof( struct berval * ) ); 165 for ( j = 0; !BER_BVISNULL( &ml->sml_values[ j ] ); j++ ) { 166 mods[ i ].mod_bvalues[ j ] = &ml->sml_values[ j ]; 167 } 168 mods[ i ].mod_bvalues[ j ] = NULL; 169 } 170 171 } else { 172 mods[ i ].mod_bvalues = NULL; 173 } 174 175 i++; 176 } 177 modv[ i ] = 0; 178 179retry:; 180 ctrls = op->o_ctrls; 181 rc = meta_back_controls_add( op, rs, mc, candidate, &ctrls ); 182 if ( rc != LDAP_SUCCESS ) { 183 send_ldap_result( op, rs ); 184 goto cleanup; 185 } 186 187 rs->sr_err = ldap_modify_ext( mc->mc_conns[ candidate ].msc_ld, mdn.bv_val, 188 modv, ctrls, NULL, &msgid ); 189 rs->sr_err = meta_back_op_result( mc, op, rs, candidate, msgid, 190 mt->mt_timeout[ SLAP_OP_MODIFY ], ( LDAP_BACK_SENDRESULT | retrying ) ); 191 if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) { 192 retrying &= ~LDAP_BACK_RETRYING; 193 if ( meta_back_retry( op, rs, &mc, candidate, LDAP_BACK_SENDERR ) ) { 194 /* if the identity changed, there might be need to re-authz */ 195 (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls ); 196 goto retry; 197 } 198 } 199 200cleanup:; 201 (void)mi->mi_ldap_extra->controls_free( op, rs, &ctrls ); 202 203 if ( mdn.bv_val != op->o_req_dn.bv_val ) { 204 free( mdn.bv_val ); 205 BER_BVZERO( &mdn ); 206 } 207 if ( modv != NULL ) { 208 for ( i = 0; modv[ i ]; i++ ) { 209 free( modv[ i ]->mod_bvalues ); 210 } 211 } 212 free( mods ); 213 free( modv ); 214 215 if ( mc ) { 216 meta_back_release_conn( mi, mc ); 217 } 218 219 return rs->sr_err; 220} 221 222